What is causing the buzzing noise coming from inside the engine?
The car was reported to have lost power, the engine light came on and a
loud buzzing noise is coming from the engine even while in park. One of the
codes is a rocker is not getting oil P2646. I checked the valve visible from
the oil cap and saw what looked like fresh oil while running. There is no
valve tap noise nor is there any worn crank shaft noise. It is a high milage
engine. The fellow is still making payment though. 2.4 DOHC. I cleared the
codes but when I ran it again for a while the codes did not reappear. Still
making buzzing noise though.
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