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1999 Chevrolet Silverado 1500 5.3L Poor Idle Quality
Posted to GM Driveability on 10/16/2013 15 Replies

We have a 99 silverado with an intermittent miss (stumble) at idle. No vacuum leaks. Cleaned MAF, and idle air controller. It shows no missfires. No codes, no strange data. It is worse in gear with ac on. Runs perfect other than this issue. Hoping someone has ...

15 Replies Received (View Replies)

  Related Documents & Media  1999 Chevrolet Silverado 1500

 
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet Silverado 1500

VIN 2GCEC19T2X
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
Message Closed w/FIX

car Vehicle Data

1999 Chevrolet Silverado 1500

VIN 2GCEC19T2X
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality