Copied from a post I did on Facebook a week or so ago.
I posted a week or two about a check engine light I had on my 2008 E1 LS3 Senator. Turns out it was a camshaft position sensor code and after appearing for 2 days in a row it didn't come back, so I was possibly going to ignore it unless it came back.
Turns out I was very fortunate that it was due for its 75,000km service or given it hadn't reappeared I would have done that - ignored it, at least unless it appeared again.
Given the service was due I had my mechanic (ex forum member Spank) order a new sensor and the car went in yesterday with me waiting there for it. After 14½ years in a hot (blown) motor it turned out that the plastic of the sensor had all disintegrated, so the timing cover had to come off to remove it.
That's when my mechanic discovered a known problem with these motors which have a spring loaded chain tensioner. The plastic parts of the tensioner had already disintegrated and were in the sump! If my cam position sensor hadn't thrown a code we wouldn't have discovered that and most likely my motor would have gone bang in a major way! ��
Also discovered an amazing amount of sludge (and bits of plastic) in the sump. �� The car has genuinely done 75,000km (bought it from a good mate), had oil and filter changes every 7,500km with quality full synthetic oil and only ever run 98 fuel.
https://vimeo.com/867233613?share=copy
