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2004 GMC Sierra 1500 5.3L Misfire, MIL Lamp on
Posted to GM Driveability on 2/18/2010 19 Replies

Any help would be apprieciated. This vehicle came in with a miss and lean code on bank one. I checked fuel press. 62 P.S.I. I also checked for vaccume leaks and found none. Checked TSB's And O2 sensor not cracked. Cyl. 1,3,5,7 misses inter with 1,5 missing all...

19 Replies Received (View Replies)

  Related Documents & Media  2004 GMC Sierra 1500

 
Message Closed w/FIX

car Vehicle Data

2004 GMC Sierra 1500

VIN 2GTEK13TX4
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways

Trouble Codes

P0131Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage
P0171Fuel System Too Lean (Bank 1)
P0300Multiple Misfire Detected
Message Closed w/FIX

car Vehicle Data

2004 GMC Sierra 1500

VIN 2GTEK13TX4
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways

Trouble Codes

P0131Heated Oxygen Sensor (Bank 1 Sensor 1) Circuit Low Voltage
P0171Fuel System Too Lean (Bank 1)
P0300Multiple Misfire Detected