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1999 Chevrolet K2500 Suburban 7.4L Poor Idle Quality, high idle
Posted to GM Driveability on 1/13/2009 22 Replies

truck came in with intermittent high idle. we replaced iac motor and it idled perfect. customer left for 2 days and came back with same problem. no codes still. you can plug the iac hole, start it and feel the iac clicking like its trying to work but the pintl...

22 Replies Received (View Replies)

  Related Documents & Media  1999 Chevrolet K2500 Suburban

 
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet K2500 Suburban

VIN 3GNGK26J5X
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, High Idle
OccursIdle
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet K2500 Suburban

VIN 3GNGK26J5X
Engine7.4 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, High Idle
OccursIdle