Mechanics

GMC JIMMY ENGINE PROBLEM

1999 GMC Jimmy • 200,000 miles

Engine sputters and stammers when accelerating quickly from a stop. No codes or engine light is on
could it be the throttle body sensor?
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Guest
February 7, 2013.



Have you checked fuel pump pressure?

Check fuel pressure shold be 60-66 psi if a 4.3L
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Hmac300
Feb 7, 2013.

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