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Print in friendly format Send this term to a friend  Sheet Molded Compound
Also known as SMC.

This is the stuff that all C4 Corvettes are made of.

It’s similar to fiberglass, but much more durable.

The only issu...
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89 vette misfires when at operating temperature

Subject: 89 vette misfires when at operating temperature
by damien89 on 2019/10/27 9:24:26

Hi, my 89 vette misfires when it reaches above 160'f +, it does it randomnly but it always does it, if i turn off the engine and restart it it works fine then after a few seconds it starts misfiring again. When it misfires the fuel pressure drops and if i give it a bit of throttle it jumps between 10-50 psi erratically, i was going to change the fuel pump but when its cold it works just fine, 40psi at idle and 47psi with load.

Anyone have any tips what should i check?
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