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1991 Pontiac Grand Am LE 2.5L Hesitation, Cuts out, Misfire
Posted to GM Driveability on 12/2/2003 11 Replies

Engine misfires, hesitates, and sometimes backfires throught the intake on medium acceleration. Sometimes cold, worse when hot. When accelerating slowly it is ok, when you get on the gas hard it is ok, most of the time.

Checked for codes in the ecm, none. Che...

11 Replies Received (View Replies)

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Message Closed w/Summary

car Vehicle Data

1991 Pontiac Grand Am LE

VIN 1G2NF54U1M
Engine2.5 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI
SymptomsHesitation, Cuts Out, Misfire
OccursHot, Under Load, on Accel, Intermittently, Intermittenly Cold
Message Closed w/Summary

car Vehicle Data

1991 Pontiac Grand Am LE

VIN 1G2NF54U1M
Engine2.5 L / 4 cyl / GAS
Trans3-speed Automatic
DeliveryFI
SymptomsHesitation, Cuts Out, Misfire
OccursHot, Under Load, on Accel, Intermittently, Intermittenly Cold