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Old 10-13-2021, 09:21 PM   #27
fdryer
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Join Date: Jan 2006
Location: NYC
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2003 L-Series 3.0L Sedan
Default Re: Engine head replacement 07 ion 2.2

The noise may be from the bottom end, maybe connecting rod bearings. When the valves met pistons with skinny valve stems bending, the shock is sent everywhere. Con rods can bend/break, wrist pins may crack pistons, crankshaft plain bearings squish, etc. Anything imagined is answered with a full tear down. Guessing is easy.
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