Quote:
Originally Posted by mattderk
Yes 20/20 hindsight. In the end the issue was a jammed check valve and the o-ring was cut. GM installed the oil pump with a cut o-ring .. nice quality control. There is the source of my issues.
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did they do it under warranty for you? how many miles did you have on it when it went?
most good performance shops will automatically replace the oilpump when doing a cam since it's right there (on these motors).