1988 GMC C2500

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  • 1988 GMC C2500

Engine problem
1988 GMC C2500 V8 Four Wheel Drive Automatic 185000 miles

It has factory fuel injection but idles really high, there are no adjustment screws like on a carburater. How do I turn it down or fix it?

Do you
have the same problem?
Saturday, February 2nd, 2008 AT 10:13 PM

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