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2004 GMC Yukon SLE 5.3L MIL Lamp on
Posted to GM Driveability on 5/27/2009 11 Replies

Hey guys. I need some help with this one. This truck came in to our shop the other day with a check engine light. Codes P0171 and P0174 were found.

First, I checked all the basics. Fuel pressure, volume, engine vacuum, intake duct leaks, smoke tested the int...

11 Replies Received (View Replies)

  Related Documents & Media  2004 GMC Yukon SLE

 
Message Closed w/FIX

car Vehicle Data

2004 GMC Yukon SLE

VIN 1GKEK13TX4
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / MPFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)
Message Closed w/FIX

car Vehicle Data

2004 GMC Yukon SLE

VIN 1GKEK13TX4
Engine5.3 L / 8 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / MPFI
EmissionsOBD-II Compliant
SymptomsMIL Lamp On
OccursAlways

Trouble Codes

P0171Fuel System Too Lean (Bank 1)
P0174Fuel System Too Lean (Bank 2)