after warm up it stalls have to use full throttle to start serges while driving

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it acts if it is flooding can this also be the fuel pump? I was thinking throttle position sensor but not sure. It wont idle after it warms up. hold throttle to floor to restart smell gas. The serging is at any speed including highway.

racer44 in Thomasville NC

Nov 26, 2011

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What are the best GMC repair shops?

RepairPal Certified shops can diagnose and repair your 1990 GMC S15 Jimmy. 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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after warm up it stalls have to use full throttle to start serges while driving

What is your question?

racer44 in Thomasville NC

Nov 26, 2011

1 Reply

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anthony000on Feb 15, 2012

look for any vacum leaks and you may have to check the compression cuold be head gasket leaking

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Popular Answer

What are the best GMC repair shops?

RepairPal Certified shops can diagnose and repair your 1990 GMC S15 Jimmy. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.