Join Date: Apr 2001
Location: eustis , Florida
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Re: Engine Shakes
Put a vacuum guage on it to check for a burnt valve, thats an easy check. If the guage reads erratic, drops, or just dont hold good vacuum at idle, then you`ll have to dig deeper.
Although i have seen many 4.9s and 5.8s with burn`t exhaust valves and/or seats, its very rare for a 5.0 to burn them for some reason, from what * i * had experienced anyways working in machine shops over the years...