Question about 1999 GMC Denali

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I have a p reg 1.4 corsa 8 valve it seems to hesitate ,miss during accelertin between 2 and 3 thousand revs,but only while gentley accelerating,,,if i accelarate fast it has no hesstation,or missing,i have changed the plugs the ht leads,lamda,coolnt sender and sensor,,the only thing i can think of now is coil,,,then,,after that valves?

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The coil might have a small crack in it, that might be causing the hesation only when taking off slow, these are known for that problem. try replacing that coil I'm pritty shur you will see an improvment.

Posted on Nov 18, 2009

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