This sounds like a classic case of a hydraulic lifter (also called a lash adjuster) that is dying a slow death. These components rely on engine oil pressure to maintain the correct clearance between ...
QUESTION: I have a 1999 Buick Park Avenue with 47,000 miles. It started to make a tapping noise. It goes away in a few minutes. I went to the Buick service department, and they claim all GM engines do ...
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