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2008 Chevrolet Silverado 1500 LS 4.8L Poor Idle Quality
Posted to GM Driveability on 5/4/2011 4 Replies

noted vehicle idles high on start if u put it in gear it will idle down to normal value until u touch the throttle then it will idle around 2000 rpm tps apps [...] closed

4 Replies Received (View Replies)

  Related Documents & Media  2008 Chevrolet Silverado 1500 LS

 
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car Vehicle Data

2008 Chevrolet Silverado 1500 LS

VIN 1GCEK19C98
Engine4.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursAlways

Trouble Codes

P0507Idle Speed Control System Higher Than Expected
Message Closed

car Vehicle Data

2008 Chevrolet Silverado 1500 LS

VIN 1GCEK19C98
Engine4.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursAlways

Trouble Codes

P0507Idle Speed Control System Higher Than Expected