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1991 Chevrolet Lumina Euro 3.1L Poor Idle Quality, High Idle
Posted to GM Driveability on 3/26/2002 7 Replies

Need some help with this one. Once warmed up, engine will race ([...] rpm) and then come down on its own with a rough idle. It will continue to surge like this and the time the idle stays up varies. Can hear vacuum leak under plenum. Replaced PCV hose (cracked...

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  Related Documents & Media  1991 Chevrolet Lumina Euro

 
Message Closed w/FIX

car Vehicle Data

1991 Chevrolet Lumina Euro

VIN 2G1WN54T3M
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsPoor Idle Quality, High Idle
OccursHot, Idle, Intermittently
Message Closed w/FIX

car Vehicle Data

1991 Chevrolet Lumina Euro

VIN 2G1WN54T3M
Engine3.1 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsPoor Idle Quality, High Idle
OccursHot, Idle, Intermittently