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2004 GMC Envoy SLT 4.2L Hesitation
Posted to GM Driveability on 8/3/2014 11 Replies

This vehicle was brought in and when stepping on gas reduced power light comes on and vehicle seems to be in almost a limp mode. Can not get over 30 miles per hour. It has very little power. I have been checking posts and was wondering if it needs updated prog...

11 Replies Received (View Replies)

  Related Documents & Media  2004 GMC Envoy SLT

 
Message Closed w/FIX

car Vehicle Data

2004 GMC Envoy SLT

VIN 1GKET12S84
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsHesitation
OccursAlways, Under Load

Trouble Codes

P0122Throttle Position Sensor Circuit Low Voltage
P0641PCM Sensor Reference Voltage 'A' Circuit Malfunction
P0651PCM Sensor Reference Voltage 'B' Circuit Malfunction
P2135Throttle Position Sensor 1/2 Incorrect Voltage Correlation
P2138Accelerator Pedal Position Sensor 1/2 Incorrect Voltage Correlation
Message Closed w/FIX

car Vehicle Data

2004 GMC Envoy SLT

VIN 1GKET12S84
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsHesitation
OccursAlways, Under Load

Trouble Codes

P0122Throttle Position Sensor Circuit Low Voltage
P0641PCM Sensor Reference Voltage 'A' Circuit Malfunction
P0651PCM Sensor Reference Voltage 'B' Circuit Malfunction
P2135Throttle Position Sensor 1/2 Incorrect Voltage Correlation
P2138Accelerator Pedal Position Sensor 1/2 Incorrect Voltage Correlation