Well, The Century had no chance in hell of passing inspection, so I upgraded to a 2009 Buick Lacrosse CX. Anyone wanna buy a POS Century let me know. =]
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Possibly a camshaft broken in half and this a very common problem with the 3100.Have seen this a few times,pull the camshaft out and it is broken.Engine block is automatically junk when this happens.Found out why it happens too,the engine block was was not casted right and the 3100 engine blocks were casted in China.The camshaft journals were casted offset and Jasper,an engine/transmission reman company is the only place that has the tooling to fix this problem.
Possibly a camshaft broken in half and this a very common problem with the 3100.Have seen this a few times,pull the camshaft out and it is broken.Engine block is automatically junk when this happens.Found out why it happens too,the engine block was was not casted right and the 3100 engine blocks were casted in China.The camshaft journals were casted offset and Jasper,an engine/transmission reman company is the only place that has the tooling to fix this problem.
Camshaft shouldn’t be broken. I’m getting 21-25mpg out of it. Guy at work listened to it and said it sounds like a bad camshaft bearing. make sense. I remember back in 09 I was quite buzzed and tried to back out of a driveway with the parking brake on. Noise started after that. I just switched to 10w-40 and after it idles 5-10 mins the noise is gone.