ENGINE PROBLEM1988 GMC C2500 V8 FOUR WHEEL ...

1988 GMC C2500

Tiny

Gone Dirty

February, 2, 2008 AT 10:13 PM

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?

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