Just Vibrating Along..........

[MRVZSS]

Hi All,

Iv'e had this little problem for the past few months now, When heavy on the Throttle :driving:, A rather rough vibration is felt from the rear of the car, I first thought it could have been the Rear Wheel Alignment being out of wack, but Ive since had the car wheel aligned (all round) balance and rotated Etc...... Last Night I had 4 People in the Car, when I gave it a boot from down low that vibration seemed as if it has gotten worse with the extra load in the car...

Has Anyone had similar problems or has any Idea what could be causing this????

[GM-IRON]

Maybe Axle tramp?

If it is, rest assure that it comes as a standard feature.

Cheers,
GM-IRON

[ratter]

Tailshaft centre bearing or worn upper control arm bushes

[Azza]

I know that this could be highly unlikly being a new car but, it could be drive shaft vibration, maybe a faulty/loose mount?
But one would have to be in the car to feel the vibes you talk of :D

[GM-IRON]

Tailshaft centre bearing or worn upper control arm bushes

I agree more with your idea than mine.
I didn't realise that he wasn't getting vibration during wheel spin.
Its just under heavy accelaration.
I must learn on how to read.

Cheers.

[Sonnymad]

Hi All,

Iv'e had this little problem for the past few months now, When heavy on the Throttle :driving:, A rather rough vibration is felt from the rear of the car, I first thought it could have been the Rear Wheel Alignment being out of wack, but Ive since had the car wheel aligned (all round) balance and rotated Etc...... Last Night I had 4 People in the Car, when I gave it a boot from down low that vibration seemed as if it has gotten worse with the extra load in the car...

Has Anyone had similar problems or has any Idea what could be causing this????

Does ur car have a after market exhaust by anychance ?

;)

regards sonny

[Funk]

had a vx clubbie do the same thing worse if weight in the back turned out to be the centre bearing we replaced the whole tailshaft as the car was under warranty. seemed to be the more load the worse it got.

[MRVZSS]

Does ur car have a after market exhaust by anychance ?

;)

regards sonny

Catback Dual 2.5" Into Single 3" No rear Resinator........ :rolleyes:

[RED R8]

My VYSS has developed the same symptoms you speek of it has only started since I fitted superlows but this has alterd the drive shaft angles (same as putting ya fat mates in the car does) I have tryed putting resinator back on to see if exhaust was making vibrations but it did not change so I assume its got to do with lowering the car.

[Felony]

My VX has the same symptoms - was told it's the center bearing on the drive shaft. My car is also lowered (not super low, but low enough) and seems to get louder when I put more foot into it. At first, I thought it was the alignment as well...weird stuff. Anywho - other people have said the same kind of thing - thought I'd put in my 2c :D

[alexcs]

i get this as well, superlows on a ute.

im going to tell holden about it, and if they tell me its because of lowering, ill tell them the ute sat lower than it does now with the specified gross weight in the back, taking into account my weight and the hardtop. so there!

[CV8-RO]

Mine has vibration only when it's cold and not under load :confused:

[CV8-RO]

Mine has vibration only when it's cold and not under load. Standard suspension :confused:

[Thunder]

One of our customers has a VT 5.0 and has the same problem.
He had the wheels balanced and aligned.
He thought it might have been the auto (torque converter) or the diff.
He was told it was the tailshaft by 2 auto transmission guys and a diff place, so we put a new tailshaft in it for him and the vibration is still there.

They now say it must be the drive shafts. So they will be changed next.

I told him we should chrome everything first and he will end up with a chrome car by the time its finished. :D

[MRVZSS]

I Rang holden today and got the car booked in for tomorrow morning. I Will post the results by the Arvo :) .

[VX2VESS]

the propshaft/driveshaft vibration isn't related to weight changing the angle. you could put 20 guys in tha back. lower it to the bump stops and the propshaft/tailshaft angle will remain the same.

the only thing that changes angles with weight are the CV shafts. the diff is in a fixed position! if thats fixed how would the tailshaft/propshaft go up and down with weight in the car ??

now what it could be apart from the CV shafts. is the engine mounts/gearbox mounts allowing the motor and box to move changing the angle on the prop shaft beyond specs. the extra weight is the extra power you need to use to move it all making the motor move even more offline. this is just my theory as another place to look.

ps i also have the problem but have not tried to fix it yet. my first one was going to be replace the cv shafts. trouble is the only time i remember is when i have weight in the car and go over 90 kph which isn't often

[Sonnymad]

Catback Dual 2.5" Into Single 3" No rear Resinator........ :rolleyes:

Now this may not be the case with you,but we have had a few ls1's with this very same problem,wat we have found is very badly and poorly fitted exhausts have been touching against the rubber donut on the rear of the tailshaft, causing vibration under hard acceleration and with load in the car,stick ur head under and see if theres marks on the rubber donut or exhaust of touching.goodluck


;)

regards sonny

[MRVZSS]

I Rang holden today and got the car booked in for tomorrow morning. I Will post the results by the Arvo :) .

MMMMMMM This was the Holden Service Guy ------> :rolleyes: (NFI)

HIM: "Sir We'll Need the Car for a couple of days to determine what the problem is, we'll have to start pulling the drive line apart and take it from there!".

ME: "Yeh No Problem Mate Keep it for a week if you like, ah even a month if need be I don't use the car at all, I just Paid 55K for the Farken thing cause I had some spare cash laying around behind the couch." Hahahaha (Thats the answer he would have liked to hear).

Bottom Line, as I thought, no farken Idea. (Im Just wondering now is that because its under warrantee? mmmmm) :eek:

The car went in this morning and I got i back at lunch. Now, It went in with half a tank of fuel, (240kms remaining fuel), 15.2L/100km Consumption. I get the car back and only 1/4 Tank of fuel left, 120kms Remianing and 16.7/100kms Consumption, and Mind you the computer hadn't been reset by them :flamin:.


I say he's response should have been "Ah one of our highly qualified Apprentices has been driving the car around all day (not thrashing it ofcourse) just going picking up lunches, joy riding etc. and couldn't find anything wrong with It, can you leave it with us for a couple of days?".

I Wonder, if the car wasn't under warrantee, he probably would have said "Ah yeh mate our foreman had a look under the car, and we've gone and replaced the gear box, tailsaft, diff, and springs that comes to $2367.39 + GST, thanks.

HAHAHAHAHA :lol:

Might just take it to my mechanic and get him to check it out!!!!!!!

[MRVZSS]

OK......

I was asked by holden to return the car for a few days in order for them to take a closer look at the problem.

I did just that today, and the conclusion was "Everything looks ok, It must be the after market exhaust which is causing the Vibration."

Now I'm not disagreeing with them, but how could the exhaust possibly be causing this vibration?

They also mentioned something about the exhaust drone causng the vibration.

:( Help Please!!!

[seldo]

Have you checked the flex-coupling in the drive shaft? If that is torn or worn it will be okay under light load but the more load on it the worse it will vibrat. Especially if you have recently given it a violent clutch-dump

[The Warden]

OK......

Now I'm not disagreeing with them, but how could the exhaust possibly be causing this vibration?

They also mentioned something about the exhaust drone causng the vibration.

:( Help Please!!!

Errrrr, did you not read Sonny's post, #17 above?

[MRVZSS]

Errrrr, did you not read Sonny's post, #17 above?


ummmmm, Yes I did, just Trying to eliminate the possibilities of cause!!!!!! ;)

[The Warden]

ummmmm, Yes I did, just Trying to eliminate the possibilities of cause!!!!!! ;)

Sorry, wasn't meaning to get on your case :)

Was there any sign of the 'zorst contacting the rubber donut?

[MRVZSS]

Sorry, wasn't meaning to get on your case :)

Was there any sign of the 'zorst contacting the rubber donut?

All Cool Mate, :)

When I Originally took the car to holden the foreman took it for a wrap (with me in it) and agreed that the vibration was nasty. They couldn't see any visible problem from under the car so we rebooked it for today (for a duration of two days) so they can start to dismantle the driveline to eliminate or find the problem.

Like I said, their final answer was the aftermarket exhaust being at fault.

I haven't checked for any contact marks on the rubber donut but will do when I pick up the car later on :cool:

[Sonnymad]

All Cool Mate, :)

When I Originally took the car to holden the foreman took it for a wrap (with me in it) and agreed that the vibration was nasty. They couldn't see any visible problem from under the car so we rebooked it for today (for a duration of two days) so they can start to dismantle the driveline to eliminate or find the problem.

Like I said, their final answer was the aftermarket exhaust being at fault.

I haven't checked for any contact marks on the rubber donut but will do when I pick up the car later on :cool:

Get ur head under there and have a look at that rubber donut !!!!!!!!!! have a monaro in my shop at the moment with the same problem and exhaust is touching the donut ! look ! :eek:

;)

regards sonny

[Thunder]

Hi Sonny,

I have noticed on some cars with dual exhaust systems, when they are strapped down on the dyno, the strap pulls the exhaust onto the rubber donut (VX on - donut at diff end).

So if there are rubber marks on the exhaust, just make sure it hasn't been strapped down on a dyno. You may find that the marks are old and only from being on a dyno. Once the straps are released, the exhaust moves away from the donut.

cheers
Greg

[Sonnymad]

Hi Sonny,

I have noticed on some cars with dual exhaust systems, when they are strapped down on the dyno, the strap pulls the exhaust onto the rubber donut (VX on - donut at diff end).

So if there are rubber marks on the exhaust, just make sure it hasn't been strapped down on a dyno. You may find that the marks are old and only from being on a dyno. Once the straps are released, the exhaust moves away from the donut.

cheers
Greg

hi Greg,

thanks for the tip i,ll keep an eye out for next time,but the problem never occured on the dyno,it was on the road.

;)

regards sonny

[MRVZSS]

Get ur head under there and have a look at that rubber donut !!!!!!!!!! have a monaro in my shop at the moment with the same problem and exhaust is touching the donut ! look ! :eek:

;)

regards sonny

The Exhaust Is Clear of All Underbody Components and has ample space around it too. No Marks on the Rubber Donut!!!! :eek:

Holden is going to try and eliminate the problem, starting with a Tail Shaft Swap. And Then Some. :confused: (It's time for that chrome undercarriage) ;)

N.B While test driving the car yesterday, It was evident that the Vibration was clearly there once the car had warmed up, for the first 10 Minutes the vibration was minimal and hardly noticable, After a good drive up hills with 4 Pork Chops in the car, there it was VVVV-V-V-V-V-V-V-V-V-V...............

:rolleyes: :rolleyes: :rolleyes:

[Thunder]

hi Greg,

thanks for the tip i,ll keep an eye out for next time,but the problem never occured on the dyno,it was on the road.

;)

regards sonny

Sonny, in some cases, the rubber could have been left there after a previous dyno run, so it is worth keeping it in the back of your mind.

Some of these vibrations are a nightmare to find as MRVZSS is finding out.

The customer with the VT 5.0 has changed the drive shafts now, and he still has the problem. I am no expert on mechanical matters, however, when I had a VN it also had a vibration under load. After changing half the car, it ended up being the torque converter.

At least the VZ is under warranty :D so Holden has to find and fix the problem. Make sure you let us know what was wrong with it.

Cheers
Greg

[MRVZSS]

Sonny, in some cases, the rubber could have been left there after a previous dyno run, so it is worth keeping it in the back of your mind.

Some of these vibrations are a nightmare to find as MRVZSS is finding out.

The customer with the VT 5.0 has changed the drive shafts now, and he still has the problem. I am no expert on mechanical matters, however, when I had a VN it also had a vibration under load. After changing half the car, it ended up being the torque converter.

At least the VZ is under warranty :D so Holden has to find and fix the problem. Make sure you let us know what was wrong with it.

Cheers
Greg


Resluts Will Be Posted on Monday, Possibly Tuesday. :(

[VX2VESS]

Sonny, in some cases, the rubber could have been left there after a previous dyno run, so it is worth keeping it in the back of your mind.

Some of these vibrations are a nightmare to find as MRVZSS is finding out.

The customer with the VT 5.0 has changed the drive shafts now, and he still has the problem. I am no expert on mechanical matters, however, when I had a VN it also had a vibration under load. After changing half the car, it ended up being the torque converter.

At least the VZ is under warranty :D so Holden has to find and fix the problem. Make sure you let us know what was wrong with it.

Cheers
Greg

I was just thinking that a couple of days ago, maybe the torque convertor could cause this vibration under load when locked up at higher speeds.

Seems to be on auto cars only this problem eh

Who going to test this theory.

[VX2VESS]

just thought of a test they may help decide if it is the TC.

any scan tool, tech 2, or tune program can lock/unlock the TC. so drive at those speeds and unlock the tc and see if the vibration goes away or not.

[alexcs]

I was just thinking that a couple of days ago, maybe the torque convertor could cause this vibration under load when locked up at higher speeds.

Seems to be on auto cars only this problem eh

Who going to test this theory.

you cna discount the last two ideas, my m6 ute without tc gets the same deal :) its only happened since i lowered it on king superlows, so all i can assume is that the camber angle, which is probably more than 2 degrees, only gets more negaive when you go WOT, and its just a function of holdens poor quality IRS :)

[VX2VESS]

you cna discount the last two ideas, my m6 ute without tc gets the same deal :) its only happened since i lowered it on king superlows, so all i can assume is that the camber angle, which is probably more than 2 degrees, only gets more negaive when you go WOT, and its just a function of holdens poor quality IRS :)

maybe except mine has a 4 point camber kit and my camber/toe isn't that bad. if fact when it is loaded for a trip i change springs to heavy ones that are higher when fully loaded, still does it. then does it with a load with the other springs too.

Its a PIA, could be the camber still. trouble it have a lot of expensive parts to replace just to try and discount them. even then it may not be solved after change the whole driveline

i not that concered as it is only higher speed wots and don't do them much.

[057GEN]

When i had my VX i went threw all the same shit with HOLDEN. They changed everything possible. They first blamed my lowered suspension I took it all out put the original stuff back in and still a vibration. They then said my exhaust so i took it off and put the standard one back on STILL VIBRATION. They then said my rims and tyres changed them STILL VIBRATION. Then engine mounts gearbox mounts and diff mounts.

STILL VIBRATION.

Then after several weeks of me wanted to kill them ans them sick of trying everything they ended up getting SOME SPANK from GMH technical departnement to come up and look at it.

He bought up some GMH tools to checks angles and allignments (The tool was STRING LOL )

After spending several hours on the car. he then rang me and said "YES I FEEL THE VIBRATION" we have checked all angles and everything is right.

I said but you admitted there is a vibration. Him being quick witted and working for the O MIGHTY GMH tells me "THE VIBRATIONS are WITH IN TOLERENCE" I asked for a copy of the tolerences and specs on vibrations and how he checked they are with in specs.

He said THERE is no set specs its just my opinion as i have vast experience as an engineer.

So GMH tried everything and couldnt fix it so at the end said YES there is a vibration but it is with in our specs.

So GOOD LUCK to you all with this problem

[VFast]

...when it is loaded for a trip i change springs to heavy ones that are higher when fully loaded, still does it. then does it with a load with the other springs too.

With the heavy duty springs installed, does it sit at factory height or just higher than the lowered ones?

I am sure I read somewhere (maybe on these forums ?) something about the decrease in CV driveshaft end float when cars were lowered and this was causing vibration ??? The problem was more to do with not having any end float remaining after lowered springs installed and binding up the driveline causing vibration...

Can anybody recall seeing this anywhere?

[VX2VESS]

With the heavy duty springs installed, does it sit at factory height or just higher than the lowered ones?

I am sure I read somewhere (maybe on these forums ?) something about the decrease in CV driveshaft end float when cars were lowered and this was causing vibration ??? The problem was more to do with not having any end float remaining after lowered springs installed and binding up the driveline causing vibration...

Can anybody recall seeing this anywhere?

i mentioned end float in relation to fitting camber kits, but could have been another on this issue too maybe.

My heavy duty springs sit at fe2 height when loaded up. not sure how much they drop at wot from there. less than the softer buggers anyway.

[VFast]

i mentioned end float in relation to fitting camber kits, but could have been another on this issue too maybe.

My heavy duty springs sit at fe2 height when loaded up. not sure how much they drop at wot from there. less than the softer buggers anyway.
So how does it fair with vibration when it isn't loaded up, but with the FE2 height HD springs?

If there is no change, you could almost discount the springs scenario...

Unless the stiffer springs are transmitting more vibration thru to the chassis itself?

[VX2VESS]

So how does it fair with vibration when it isn't loaded up, but with the FE2 height HD springs?

If there is no change, you could almost discount the springs scenario...

Unless the stiffer springs are transmitting more vibration thru to the chassis itself?

no apparent vibration unloaded low or high springs that i recall. which is why i was thinking the extra weight is bringing it on via the torque convertor, that isn't noticable without the weight. I asked a auto trannie mob and they said yes the TC can give you this vibration when locked. $350 for a reco one, $350 to fit it, plus lubes etc. $1,000 to rule it out is a little steep. rather try the other little test first with unlocking the TC when its doing it. still could just be the TC itself unlocked too.

could be just a feature like 057GEN found on his

[VFast]

no apparent vibration unloaded low or high springs that i recall. which is why i was thinking the extra weight is bringing it on via the torque convertor, that isn't noticable without the weight. I asked a auto trannie mob and they said yes the TC can give you this vibration when locked. $350 for a reco one, $350 to fit it, plus lubes etc. $1,000 to rule it out is a little steep. rather try the other little test first with unlocking the TC when its doing it. still could just be the TC itself unlocked too.

could be just a feature like 057GEN found on his

Sounds like it comes in when the car is pulling a bit more weight, hence the engine is loaded up a bit more...

Yeah I would definitley give the TC a try unlocked and see how you go, definitley a lot cheaper than a replacement TC :eek:

Good luck with it all, I know these things can be very frustrating :(

[Uncle Tone]

Hi All,

Iv'e had this little problem for the past few months now, When heavy on the Throttle :driving:, A rather rough vibration is felt from the rear of the car, I first thought it could have been the Rear Wheel Alignment being out of wack, but Ive since had the car wheel aligned (all round) balance and rotated Etc...... Last Night I had 4 People in the Car, when I gave it a boot from down low that vibration seemed as if it has gotten worse with the extra load in the car...

Has Anyone had similar problems or has any Idea what could be causing this????

I had the same problem exactly.

You notice a rough "harshness" in the car when giving it a bit in up the top of second, in third, and in fourth on the highway, but only when you give it a bit of throttle, right? The vibration is not there when you are cruising at steady throttle, is it?

Then you put some mates in the back, or something in the boot, and when you give it a bit, the vibration is worse, isn't it? Extra weight in the back has made it more noticeable, right?

The Holden dealers standard response to this is "changes in driveline angle, normal behaviour." Don't accept this.

Get the Holden dealer to swap both driveshafts for ones off another car (preferrably one of their demo models or something new). Not the tailshaft, the driveshafts (or half shafts). I made the Holden dealer do this to mine and the vibration disappeared. They had a Holden troubleshooter out from the factory there for hours aligning tailshafts and crap but to no avail. It was the driveshafts.

The only explanation I have for this (The dealer didn't have one) is that when the CV joints are in their normal position cruising along they're fine, but when the car squats on acceleration (made worse with weight in the back) the worn CV joints generate a vibration that you can hear and feel, sort of like when a bearing is stuffed. Since you are producing little load on a CV in the standard height position, the housing and ballbearings in the CV are not worn in that position, but when you put load on and the CV changes angle due to squat, the CV wears in that position. Thats why you only get the noise under load.

The Holden dealer should replace the driveshafts under warranty. Strangely enough they wouldn't replace just the guts of the CV joint......although you would think that this would be a cheaper option for them.

The noise will go. (At least that's what happened to me)

[RIDE:42]

give the side skirts a wack with the palm of your hand and listen for a rattle as stones ect get thrown in there . Don`t laugh it does happen ;)

[VX2VESS]

I had the same problem exactly.

You notice a rough "harshness" in the car when giving it a bit in up the top of second, in third, and in fourth on the highway, but only when you give it a bit of throttle, right? The vibration is not there when you are cruising at steady throttle, is it?

Then you put some mates in the back, or something in the boot, and when you give it a bit, the vibration is worse, isn't it? Extra weight in the back has made it more noticeable, right?

The Holden dealers standard response to this is "changes in driveline angle, normal behaviour." Don't accept this.

Get the Holden dealer to swap both driveshafts for ones off another car (preferrably one of their demo models or something new). Not the tailshaft, the driveshafts (or half shafts). I made the Holden dealer do this to mine and the vibration disappeared. They had a Holden troubleshooter out from the factory there for hours aligning tailshafts and crap but to no avail. It was the driveshafts.

The only explanation I have for this (The dealer didn't have one) is that when the CV joints are in their normal position cruising along they're fine, but when the car squats on acceleration (made worse with weight in the back) the worn CV joints generate a vibration that you can hear and feel, sort of like when a bearing is stuffed. Since you are producing little load on a CV in the standard height position, the housing and ballbearings in the CV are not worn in that position, but when you put load on and the CV changes angle due to squat, the CV wears in that position. Thats why you only get the noise under load.

The Holden dealer should replace the driveshafts under warranty. Strangely enough they wouldn't replace just the guts of the CV joint......although you would think that this would be a cheaper option for them.

The noise will go. (At least that's what happened to me)

yep good theory a few posts floating around where thats my first choice as they are the only thing that moves. but so far no one has said in the last year that this solve the problem. till now, wanted a few ppl to say yes i had this and this fixed it, seeing i have to pay for them. either that or the TC.

when your paying yourself want to make sure it the right part. things like this can waste a crap load trying to track it if wrong each time as major parts involved. that one thing warrantee maybe good for they can waste money trying to find it and you end up with a new car when they are done (in parts)

[Uncle Tone]

yep good theory a few posts floating around where thats my first choice as they are the only thing that moves. but so far no one has said in the last year that this solve the problem. till now, wanted a few ppl to say yes i had this and this fixed it, seeing i have to pay for them. either that or the TC.

Not a theory, this is exactly what fixed the vibration I described.


when your paying yourself want to make sure it the right part. things like this can waste a crap load trying to track it if wrong each time as major parts involved. that one thing warrantee maybe good for they can waste money trying to find it and you end up with a new car when they are done (in parts)

If the Holden dealer is any good he will swap parts from a car in the yard and use this to determine the problem......but you might have to push them a bit.

[MRVZSS]

As Read Previously, holden has taken my car in to swap the tailshaft over with a new one of a new SS.

They told me it hasn't made a difference and the Vibration is still there. I asked the foreman to swap the Drive shafts (As that was the problem UNCLE TONE had), They said that they can't spend any more time on the car because the car because Holden won't pay them for the work.

He rekons that if holden see the after market exhaust they will try to blame it on that.

So Where to now? :rolleyes:

I'm thinking of putting the standard exhaust back on and taking the car to them standard. If they then find that it is anything other than the exhaust causing the vibration, i will then make them pay for the all my lost time (Work, changing exhausts Etc.)..........

Any Other Ideas?

[VFast]

As Read Previously, holden has taken my car in to swap the tailshaft over with a new one of a new SS.

They told me it hasn't made a difference and the Vibration is still there. I asked the foreman to swap the Drive shafts (As that was the problem UNCLE TONE had), They said that they can't spend any more time on the car because the car because Holden won't pay them for the work.

He rekons that if holden see the after market exhaust they will try to blame it on that.

So Where to now? :rolleyes:

I'm thinking of putting the standard exhaust back on and taking the car to them standard. If they then find that it is anything other than the exhaust causing the vibration, i will then make them pay for the all my lost time (Work, changing exhausts Etc.)..........

Any Other Ideas?

As you have suggested, I would just return the car to std (as much as possible) and take it back to them... This will remove any doubt that it is (or isn't) your aftermarket parts.

It may also pay to ask the Service Manager what happens if it is found to be something other than your aftermarket exhaust. Who pays for your expense to remove and replace? I think however that you will be pushing sh*t up hill to get reimbursed for this :(

At least they can't come up with any more excuses if you send it in there as it rolled out of the factory...

[COSMOS]

As Read Previously, holden has taken my car in to swap the tailshaft over with a new one of a new SS.

They told me it hasn't made a difference and the Vibration is still there. I asked the foreman to swap the Drive shafts (As that was the problem UNCLE TONE had), They said that they can't spend any more time on the car because the car because Holden won't pay them for the work.

He rekons that if holden see the after market exhaust they will try to blame it on that.

So Where to now? :rolleyes:

I'm thinking of putting the standard exhaust back on and taking the car to them standard. If they then find that it is anything other than the exhaust causing the vibration, i will then make them pay for the all my lost time (Work, changing exhausts Etc.)..........

Any Other Ideas?

you must have been at the same dealer service centre i was at today.... I tell them the problem and the first questions they asked were;

aftermarket wheels?
aftermarket exhaust?
buckled wheels?
thrash it?

no !

then he tells me not to be angry when they cant find the problem. isnt this good service, they counter jockey is already pre-empting the results of the repair. why not just say "could not fault vehicle" like a friggin robot.

i watch this thread with interest as my probs are similar

[Uncle Tone]

As Read Previously, holden has taken my car in to swap the tailshaft over with a new one of a new SS.
yep, they did that to mine first up. Didn't fix it, so I kept hassling them.



They told me it hasn't made a difference and the Vibration is still there. I asked the foreman to swap the Drive shafts (As that was the problem UNCLE TONE had), They said that they can't spend any more time on the car because the car because Holden won't pay them for the work.
Holden has an obligation to fix the vibration. They also said they couldn't spend any more time on the car to me....

Don't give in. At all. This is just the Holden dealer textbook correspondence that they are quoting.


He rekons that if holden see the after market exhaust they will try to blame it on that.
Same here. Actually when the troubleshooting guy came out he said he couldn't hear any vibration BECAUSE of the exhaust. :bash:

Of course I didn't accept this :D


I'm thinking of putting the standard exhaust back on and taking the car to them standard. If they then find that it is anything other than the exhaust causing the vibration, i will then make them pay for the all my lost time (Work, changing exhausts Etc.)..........

Any Other Ideas?
They won't pay for your lost time, they are not obligated to under the conditions of the warranty. They said that I had to put the stock exhaust back on as well. I told them to do it, even brought the exhaust down for them.....but lo and behold, it was too much work!!

The troubleshooter guy came out from Holden and I went with him on the test drive so I could demonstrate the problem to him and look him in the eye whan the vibration was heard. Not much he could say to me when I was in the car with him, really :D

The troubleshooting guy will have to authorize any further work to your car, so demonstrating the problem to him personally is the only way to go.

Hope this helps you.

[MRVZSS]

Hey Fellas,

Just Got my Original Exhaust Refitted in hope to come up with an answer regarding this V v v iiiiiiiiiii b b b b r r r a a a t t t i i i i o o o o n n n n saga:rolleyes:

On my way back to the office I gave it a few uphill belts in order for the bitch to demonstrate the vibration, and to my shock :confused: :eek: :eek: :confused: It Was Gone. Thats right No Vibration, WTF.

I will however throw a few lards in the back tonight and take her for a wrap. Fingers crossed no vibration........... :rolleyes:

[Uncle Tone]

Hey Fellas,

Just Got my Original Exhaust Refitted in hope to come up with an answer regarding this V v v iiiiiiiiiii b b b b r r r a a a t t t i i i i o o o o n n n n saga:rolleyes:

On my way back to the office I gave it a few uphill belts in order for the bitch to demonstrate the vibration, and to my shock :confused: :eek: :eek: :confused: It Was Gone. Thats right No Vibration, WTF.

I will however throw a few lards in the back tonight and take her for a wrap. Fingers crossed no vibration........... :rolleyes:

Let us know mate. :D

Very strange.......

[MRVZSS]

Ok Ok Ok.......................... :rolleyes:

Between now and the last thread (a few hours ago) i have had some mates in the back of the SS and guess what........ The Vibration has once again come back to Haunt me................. :( :mad: :( :mad:

What is Not Causing the Vibration:

* Faulty Tailshaft (New one just got put in a couple days ago)

* Custom Exhaust Touching Any Moving Parts [Including Rubber Donut On Tailshaft (Standard Exhaust now back on)].

* Rear Thrust Alignment (Already Done)

* Tyre Balance And Rotation All Round (Done)


After having a good look under the carriage today these are possibilities of what might be causing the vibration:

* Cross bracket (fixed to gearbox housing), supporting both sides of the exhaust at the front of the system just after the cats. This bracket is known to send a vibration down the exhaust (Vibration from gearbox).

* Drive shafts ans mentioned by UNCLE TONE.

* Faulty Diff

And thats all i can think of............................. :(

One Oher thing I thought about, Would the Induction ROARRRRRRRRR compliment this vibration, after all the ROAR is very intense and may send a ripple effect down the exhaust......... :(


HELP, This is the only thing keeping me from getting my MAFLESS TUNE!!!! :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad:

[Sonnymad]

Simply drive down and i,ll diagnose it for you !


;)

regards sonny

[VX2VESS]

Ok Ok Ok.......................... :rolleyes:

Between now and the last thread (a few hours ago) i have had some mates in the back of the SS and guess what........ The Vibration has once again come back to Haunt me................. :( :mad: :( :mad:

What is Not Causing the Vibration:

* Faulty Tailshaft (New one just got put in a couple days ago)

* Custom Exhaust Touching Any Moving Parts [Including Rubber Donut On Tailshaft (Standard Exhaust now back on)].

* Rear Thrust Alignment (Already Done)

* Tyre Balance And Rotation All Round (Done)


After having a good look under the carriage today these are possibilities of what might be causing the vibration:

* Cross bracket (fixed to gearbox housing), supporting both sides of the exhaust at the front of the system just after the cats. This bracket is known to send a vibration down the exhaust (Vibration from gearbox).

* Drive shafts ans mentioned by UNCLE TONE.

* Faulty Diff

And thats all i can think of............................. :(

One Oher thing I thought about, Would the Induction ROARRRRRRRRR compliment this vibration, after all the ROAR is very intense and may send a ripple effect down the exhaust......... :(


HELP, This is the only thing keeping me from getting my MAFLESS TUNE!!!! :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad:


try that TC test too, sonny could do it turn the lock off when under load and vibrating see if it goes away. (still could be the tc itself without lock)

its the shafts or the TC i reckon.

when mine does it you can't hear it, but you sure feel it.

[alexcs]

is it lowered? my ute started to do what you say after i lowered it.

only thing that affected it.

[Uncle Tone]

is it lowered? my ute started to do what you say after i lowered it.

Thats because the angle of the CV joints in the driveshafts changed. Thats when they start to make noise.

[Uncle Tone]

Faulty Diff

If it was the diff the noise would be there whether you put extra weight in the back or not.

Since the noise returned with weight in the back, I'm pretty certain its the driveshafts, or more to the point, one of the CV joints on the driveshafts.

Don't let your dealer get out of this!

[alexcs]

Thats because the angle of the CV joints in the driveshafts changed. Thats when they start to make noise.

the thing is, its lowered to a level at or jsut above where the thing would sit if it had the maximum load for a ss ute in it, so really if the driveshafts get chewed out its a design fault with the vehicle, becuase it is essentially being used as intended. shortened shock absorber lifespan would not be covered, but the height should be appropriate.

[VFast]

the thing is, its lowered to a level at or jsut above where the thing would sit if it had the maximum load for a ss ute in it, so really if the driveshafts get chewed out its a design fault with the vehicle, becuase it is essentially being used as intended. shortened shock absorber lifespan would not be covered, but the height should be appropriate.

Spot on Alex !!!

All you are doing is simulating the height with a load in it....

It would be interesting to see the dealer response to this...

[Uncle Tone]

the thing is, its lowered to a level at or jsut above where the thing would sit if it had the maximum load for a ss ute in it, so really if the driveshafts get chewed out its a design fault with the vehicle, becuase it is essentially being used as intended. shortened shock absorber lifespan would not be covered, but the height should be appropriate.

Absolutely correct. :D

[Uncle Tone]

Spot on Alex !!!

All you are doing is simulating the height with a load in it....

It would be interesting to see the dealer response to this...

To check it when I first worked out what the problem was I put 6 rolls of lead flashing in the boot to add weight. Made the noise straight away, and noise reduced dramatically when the flashing was taken out.

[ChirpIn3rd]

Im having a vibration problem at low rev range , fades out alittle and comes back quite severe at around 85. Just got GMH to supply a new diff under warrantee, as it had period wind sound in it. The dealer is organising a new tailshaft hopefully this week. I have my doubts thou. The car is slightly lowered but was once upon a time running perfectly smooth as i bought it like that. I just want that again.
Diff angle may be a possibility. I remember 20 yrs ago when were were racing HQ's we experimented with the rear 4 links. When we angles it too far. A loss of power and a horrible vibration would occur. I may attempt to remove the lowering blocks to see if there is any change.

[VFast]

Im having a vibration problem at low rev range , fades out alittle and comes back quite severe at around 85. Just got GMH to supply a new diff under warrantee, as it had period wind sound in it. The dealer is organising a new tailshaft hopefully this week. I have my doubts thou. The car is slightly lowered but was once upon a time running perfectly smooth as i bought it like that. I just want that again.
Diff angle may be a possibility. I remember 20 yrs ago when were were racing HQ's we experimented with the rear 4 links. When we angles it too far. A loss of power and a horrible vibration would occur. I may attempt to remove the lowering blocks to see if there is any change.
Assuming you have a Commy fitted with IRS, the diff to tailshaft angle will remain constant regardless of suspension height due to the independant rear suspension. However the driveshaft/CV angle will change with suspension height...

So I can't see any adjusting of the diff angle making it any better unless something is out of spec or bent etc making the diff sit at a different angle.

Good luck with it anyway as these types of problems are very frustrating and sometimes take a lot of component swapping/replacement to resolve. Hopefully the dealer will sought it all out for you.

[cosmo vyss]

Would a cracked rim cause vibration? Not a audible one, just one you can feel a higher speeds.
JB

[GRMJ]

I haven't read all the preceeding posts sio apologies if I'm covering old ground but I had a driveline vibration in a VN 5 litre Berlina when it was new - it was fixed by fitting slightly longer lower control arms to change the angle of the diff to the tailshaft - that was with a live rear axle. this was a recognised and recorded factory fix for the problem.

I had a similair problem with a 5 Litre VS Calais with IRS - again it was somewhat fixed (not eliminated) by getting the tailshaft and diff angles closer to correct spec. again this was a known factory fix

My current WL Statesman 6 Litre vibrates too but the dealer refuses to believe there is a problem - when I get a chance I'll go to a transmission/diff specialist and get it seen to.