First thing I thought was Condenser and replaced it with a new one didn't help. At the same time I needed a new Key Switch and replaced that. I bought it with the shake two years ago with figuring I would run it to it blows LOL. I was thinking head gasket but the Back Firing has me confused. When I shut it down now sometimes it will back fire after the motor stops which has me thinking timing?
Do not over look points&condenser. Condenser's can behave erratic at differant RPMS.
It always shook since I got it a few years back. I drained the oil when I first got it and could see a sparkle to the oil making me think rod wear?
But everyones post on here gives me a lot to think about and look for thanks.
Would Bad motor mounts be completely torn? I have a few that look dry rotted and the other two look good.
And by Shakes I mean the hood rattles and you can see it shaking at mid throttle just doesn't seem right to me but has done it since I have had it.
Is it under load while mid range is cracking up?
Edited by greenmeanie, March 28, 2013 - 09:42 PM.