Question about 1992 Chevrolet S-10

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Idles fast when i crank my truck up it runs wide open and then it will idle down what causes this and sometimes when i push the clutch in it will be idling fast

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Most likely an air leak/vacuum hose problem. There could also be an issue with the throttle body base gasket. The 4.3 engines are known to rev a little high but a small air leak can make them rev really high when they should not.

Posted on Oct 18, 2008

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