Question about 1988 Chevrolet C1500

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Timing help can anyone help out with timing codes for 88 chevy c1500 2wd 4.3l v6 no ac . my engine knocks and struggles to run when idle ive tried everything else.please help

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Have you tried to replace the IAC (idle air control) valve?

Another probable cause could be a stuck EGR solenoid. If this solenoid sticks open, it will send vaccuum to the EGR valve, which will open the EGR valve and flood the system with too much air and "snuff" the engine out. This problem only shows up at idle. The engine should run fine when driving. Please let me know if this helps.

Posted on Aug 03, 2008


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