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2008 Chevrolet Silverado 1500 LS 4.8L Poor Idle Quality, Hesitation, Surge, MIL Lamp on
Posted to GM Driveability on 11/30/2010 8 Replies

To all you gm techs out there, i could use a guiding hand on this one. Vehicle came in with dtc p2138 stored and a message stating reduced engine power. I found 1 tsb regarding this dtc and inspected the ip connector to the body harness but all checked out ok....

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  Related Documents & Media  2008 Chevrolet Silverado 1500 LS

 
Message Closed w/FIX

car Vehicle Data

2008 Chevrolet Silverado 1500 LS

VIN 1GCEC14C08
Engine4.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Surge, MIL Lamp On
OccursAlways

Trouble Codes

P2138Accelerator Pedal Position Sensor 1/2 Incorrect Voltage Correlation
Message Closed w/FIX

car Vehicle Data

2008 Chevrolet Silverado 1500 LS

VIN 1GCEC14C08
Engine4.8 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Hesitation, Surge, MIL Lamp On
OccursAlways

Trouble Codes

P2138Accelerator Pedal Position Sensor 1/2 Incorrect Voltage Correlation