TBI 350 "rattle"
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TBI 350 "rattle"
Just bought a 1987 Blazer with a 350TBI. After basic tune-up stuff, it runs pretty well, but there's a noise it's making that has me worried. It only happens under heavy acceleration, and sounds like a kid with a marble in a tin can is shaking it, like something is loose and flopping around - maybe a rocker arm? It doesn't have a real rhythm, as far as "tick tick tick", as it's more like "rattle................rattlerattlerattle......... .................rattle rattle" (if that makes any sense at all).
The engine idles and accelerates fine, just making that noise that has me worried.
The engine idles and accelerates fine, just making that noise that has me worried.
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reving it up and trickling water in the TB will break loose carbon as well as tranny fluid the same way. If you put a tank of 93 in it and it stops you'll know what the problem is then.
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