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1999 Pontiac Grand Prix GT 3.8L Poor Idle Quality, Stall
Posted to GM Driveability on 8/9/2004 3 Replies

Vehicle will idle fine when cold. After it is warmed up and the air conditioner is on when the A/C clutch cycles the engine surges and sometimes stalls. Car was tuned up with new plugs and wires. Throttle plates, IAC and MAF sensor were cleaned but so far noth...

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Message Closed w/Summary

car Vehicle Data

1999 Pontiac Grand Prix GT

VIN 1G2WP52K9X
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Stall
OccursHot, Idle
Message Closed w/Summary

car Vehicle Data

1999 Pontiac Grand Prix GT

VIN 1G2WP52K9X
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Stall
OccursHot, Idle