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1990 Buick LeSabre Custom 3.8L Hi Idle 2000Rpm
Posted to GM Driveability on 3/29/2003 10 Replies

2000rpm idle speed when cold,when closed loop is reached all computer parameters ok, o2 switches. crosscounts ok, block learn and intergrator normal but iac motor counts are at "0". All systems normal, when approx 140 degrees coolant is reached,idle speed retu...

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Message Closed

car Vehicle Data

1990 Buick LeSabre Custom

VIN 1G4HP54C0L
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsHi Idle 2000Rpm
OccursCold
Message Closed

car Vehicle Data

1990 Buick LeSabre Custom

VIN 1G4HP54C0L
Engine3.8 L / 6 cyl / GAS
Trans4-speed Automatic
DeliveryFI
SymptomsHi Idle 2000Rpm
OccursCold