Still Chasing Engine/Trans Noise
Ok, I have taken the belt off and checked all the pulleys and all seem ok with no noise or rough movement.
The noise I get only happens right before a trans shift during moderate to heavy acceleration. It will not do it at idle, in park at 2000 RPM (I know "bad"),or even in drive with RPM at 2000 with brake on. Once it shifts the noise goes away. Engine has plenty of power and seems unaffected when the noise is present. No codes are being thrown and recently passed state emission by a huge margin. I get KS but no KR.
Ok the noise. When starting just after it turns over I can hear what I call a rattle from the front of the engine. It comes quickly and goes quickly, maybe 2 seconds. The noise right before trans shift sounds a little like that but louder and I can hear some loud engine noise throughout the engine, not just the front. I can only describe it as a bearing spinning loose. Sounds like a diesel engine is another way to decribe it.
Is there anything in my scan I can look at that might help me diagnosis this? I have the Actron 9145 and it gives me lots of live data. The engine doesn't use oil,doesn't smoke and gets decent gas mileage. The problem does seem to be getting worse. I'll see if I can put up an audio which would definitely help.
The only dumb question is the one you didn't ask!
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