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1994 Cadillac DeVille Concours 4.6L Poor Idle Quality
Posted to GM Driveability on 9/29/2004 7 Replies

this vehicle as soon as it gets hot (95 CÂȘ) at idle in park or in drive will rise and lower the rpms. It will do it for a short period of time (4 or 5 up and downs) and then it will be stable. While this is happening we can see the ISC moving back and forth. I...

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car Vehicle Data

1994 Cadillac DeVille Concours

VIN 1G6KF52Y2R
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / mpi
SymptomsPoor Idle Quality
OccursHot, Idle
Message Closed w/FIX

car Vehicle Data

1994 Cadillac DeVille Concours

VIN 1G6KF52Y2R
Engine4.6 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / mpi
SymptomsPoor Idle Quality
OccursHot, Idle