Engine Idle surge after warm with no load

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The engine idle surges until I turn on the air conditioner.. No vacuum leaks found.. what could be the problem.. THought might be head gasket, checked the block for leaks and nothing... In need of help..

Trogen in Haslet TX

May 20, 2011

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What are the best Chevrolet repair shops?

RepairPal Certified shops can diagnose and repair your 1990 Chevrolet Corvette. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What is your question?

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Engine Idle surge after warm with no load

What is your question?

Trogen in Haslet TX

May 20, 2011

1 Reply

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danddon May 20, 2011

Check you ignition wires ASAP, I have replaced wires on Vettes of this era for this very problem which is a hunting or surging idle, with out any load that goes away with the A/C on. here are some shops: https://repairpal.com/chevrolet-repair-in-haslet-texas

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Popular Answer

What are the best Chevrolet repair shops?

RepairPal Certified shops can diagnose and repair your 1990 Chevrolet Corvette. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.