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1999 Pontiac Grand Am GT 3.4L Poor Idle Quality, Surge, Poor Fuel Economy
Posted to GM Driveability on 2/20/2007 12 Replies

First off this vehicle has had a hard life. The intake gaskets were blown and the engine was severely overheated. We performed a complete engine rebuild. Customer has put 4,000 miles on engine after rebuild. Customer states car has bad gas mileage, doesn't kno...

12 Replies Received (View Replies)

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Message Closed w/Summary

car Vehicle Data

1999 Pontiac Grand Am GT

VIN 1G2NW52E3X
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsNot OBD-II Compliant
SymptomsPoor Idle Quality, Surge, Poor Fuel Economy
OccursAlways, After a Hot Soak
Message Closed w/Summary

car Vehicle Data

1999 Pontiac Grand Am GT

VIN 1G2NW52E3X
Engine3.4 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / SEFI
EmissionsNot OBD-II Compliant
SymptomsPoor Idle Quality, Surge, Poor Fuel Economy
OccursAlways, After a Hot Soak