very poor idle cold

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very rough idle cold, won't rev up, no throttle response, smells like unburned fuel, suddenly may idle ok. no check engine light. will almost die. good cranking speed. been slow to start.

daveZ51C7 in Everett WA

Jul 9, 2011

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What are the best Isuzu repair shops?

RepairPal Certified shops can diagnose and repair your 1994 Isuzu Trooper. 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?

Popular Answer

very poor idle cold

What is your question?

very rough idle cold, won't rev up, no throttle response, smells like unburned fuel, suddenly may idle ok. no check engine light. will almost die. good cranking speed. been slow to start.

daveZ51C7 in Everett WA

Jul 9, 2011

1 Reply

Popular Answer

birdybob2on Mar 3, 2015

Not sure if this was ever answered, but it sounds like the fuel pressure regulator is going out. Its a fairly easy replacement job. Part costs aprroximately $50.

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Popular Answer

What are the best Isuzu repair shops?

RepairPal Certified shops can diagnose and repair your 1994 Isuzu Trooper. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.