VY Cutting out

[karter42]

A couple of weeks ago after ¾ filling my tank, about 5 k’s up the road, the car spluttered a couple of times and then came good with no further issues. Did not really give it further thought.

A week later after ¾ filling again, same thing happened, about the same spot, but cleared and was all good again for a couple of tanks of fuel. Then coming home from work the other day, ½ tank of fuel, did a fairly hard break and turned into a tight corner and the car cutout, dropped her into Neutral while coasting and restarted and all good.

Time to have a look as we had to take a trip to Melbourne Sunday, found a loose battery terminal so thought problem most likely solved. So, next day off to Melbourne, purred like a kitten all the way down, had to do a trip to South Yarra, then St Kilda, Manor Lakes and back to Warandyte. Driving home and thinks to myself, yep, battery terminal, how well is this going….. wrong, get to Cowra (NSW bout 180k’s from home) this afternoon, take a quick pit stop, get back in and 100 meters u the road at a main intersection, she stops, cranks over no prob, but that’s all. So push back into a garage (thanks to a couple of young blokes) do the bleeding obvious things, check fuses, check for loose connections etc but could find nothing wrong and ¾ tank of fuel.

The misses panic’s and rings the NRMA while I am madly pulling fuses etc out for a visual, after re-seating all fuses etc, I tell her to try it, it started!! For 3 seconds only but it was enough for her to see a message “no fuel” it flashed up and went just a quick. So while waiting for the NRMA dude, I think back to the days of a VN I owned, it did a similar thing so, jump under the rear of the VY, give the fuel tank a couple of uppercuts and bingo!! Sits there and idles, revs and behaves nicely. Give old NRMA mate a call and tell him she’s going, he was dissapointed though as he is a Ford fan and wanted to bag out a broken Holden…

So drive off, and for about 5-6 k’s, it intermittently nearly stalled at any rev and speed but finally comes good for the rest of the trip home. Just like turning the ignition off.

There is no check engine light coming on

The 3 questions I have are

1) Sound like the fuel pump?
2) Is the Fuel sender part of the pump assembly?
3) Any idea of a price of sender/fuel pump? if indeed it is the issue.

Thanks in advance

Dave.

[MYTO8]

Maybe fuel pump or the connector harness plug to the pump module ,also could be a BCM.

[karter42]

Thanks MYT08,

I take it you need to get it up on a hoist to view the connector to the pump module?

[bok1]

on my vxss i had a similar problem.when i would give it a squirt or going up 1 particulr hill it would cut out and i would jave to quickly put it into neutral and started again.it was my fuel pump.

phil

[karter42]

Thanks Bok1,

Its pointing to the fuel pump atm however it ran fine to work this morning (25k's) bizzare....

Looks like a call to Sonny and a book in then for a fuel pump replacement. just unsure if it will make the 250k trip there, but just dont trust anyone in this area to touch it.

One other thing if anyone can answer, is the fuel sender part of the pump?

Dave

[bok1]

the fuel pump is all one unit so i would presume that it would be.but don't quote me on that.

phil

[Rocket22]

yeah its all one unit.

[daskip]

cant be hard to replace the fuel pump yourself

500km round trip to get a fuel pump replaced ??? :confused:

[karter42]

I am not mechanically challenged at all infact, I am by trade a motorcycle mechanic but I beleive you need a hoist to do this, not a lot of options up this way. Local dealership, well we all know about that one, I would rather do the drive and make sure its looked after. The car has been running fine since, and more so, may need to be diagnosed and a fuel pressure test performed. Its also been pinging its brains out for weeks, even after new plugs and 98 fuel. What I will do first is replace the fuel filter myself, run a trip to Steve in the blue mountains for a scan and then make a decision.

I once took a trip to Sydney just to have a tensioner replaced on my VX by a forum sponsor, it maybe 500k, but hey, any excuse for a decent drive and not having to second guess someones work is peice of mind for me....

Dave.

[karter42]

Just an update, today the car cut out a couple of times randomly. It would start straight after. So, off for a scan to get to the root cause and it stopped again and would not fire. Take it to a workshop (Best in town, Orange) and just a quick look shows no spark?? nothing! The motor turns over, the fuel pump starts just no spark... He had no further time to look into it, but will start diagnostics later this afternoon. It cannot be driven at this point

Any ideas?

Cheers
Dave.

[ls1vt209]

Check the coil connectors, make sure there is no damage to them or they have not worked loose, especially if they have been removed before and the lock pins have not been put back in.

What mods have been done to the car?

[karter42]

It does have a catback exhaust but that was done before we purchased it with 68k on it. Now has 114k. Apart from that, its stock as they come. all I have done is 5k oil and filter changes and plugs

There is no spark from any of the coils

Dave.

Another update, they just tried to start it and no go so pushed inbto the workshop. It had no spark or fuel pulse. They hooked up some diagnostics to test and it started so, they now cannot find a fault.

A couple of strange things did happen, yesterday, I could not open the doors with the key remote, I had to put the key into the lock to open it. When it opened, the alsrm went off. Then driving into town this morning, the wipers did a swipe for no reason, I was cruising at 100k and did not have my hand anywhere near the wiper control "due to eating a donut!!" now thinking, the wipers often loose track of where they should be, they will stop anywhere I turn them off, they do not go home.

Any thoughts?

Another update, they just tried to start it and no go so pushed inbto the workshop. It had no spark or fuel pulse. They hooked up some diagnostics to test and it started so, they now cannot find a fault.

A couple of strange things did happen, yesterday, I could not open the doors with the key remote, I had to put the key into the lock to open it. When it opened, the alsrm went off. Then driving into town this morning, the wipers did a swipe for no reason, I was cruising at 100k and did not have my hand anywhere near the wiper control "due to eating a donut!!" now thinking, the wipers often loose track of where they should be, they will stop anywhere I turn them off, they do not go home.

Any thoughts?

After talking to Sonny and Oztrack (thanks for your time guys) it is likely to be the BCM. I could not even get it up my driveway this afternoon, just kept cutting out. Interesting though, disconnected the battery for 5 minutes and have just finished driving around town for an hour with no problem..