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1989 Pontiac Grand Prix 3.1L Poor Idle Quality
Posted to GM Driveability on 12/5/2002 33 Replies

Hello Everyone,

This one has got me baffled. The customer brought this one in after he replaced plugs and wires to cure a poor idle in park and worse in gear. It did not fix the problem. We have checked the fuel pressure and flow, both are good. Put a vacuum ...

33 Replies Received (View Replies)

  Related Documents & Media  1989 Pontiac Grand Prix

 
Message Closed w/FIX

car Vehicle Data

1989 Pontiac Grand Prix

VIN 1G2WJ14T8K
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsPoor Idle Quality
OccursAlways, Idle
Message Closed w/FIX

car Vehicle Data

1989 Pontiac Grand Prix

VIN 1G2WJ14T8K
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsPoor Idle Quality
OccursAlways, Idle