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2008 GMC Sierra 3500 HD WT 6.6L Hesitation, MIL Lamp on
Posted to GM Driveability on 5/22/2014 5 Replies

This truck drives ok under normal load but when accelerator is held to the floor it has no power, very low fuel rail pressure showing on scanner and goes into reduced power mode. I'm going to pull the fuel tank next week and clean the entire system any tips wo...

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  Related Documents & Media  2008 GMC Sierra 3500 HD WT

 
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car Vehicle Data

2008 GMC Sierra 3500 HD WT

VIN 1GTJK33638
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsHesitation, MIL Lamp On
OccursOn Accel

Trouble Codes

P0087Fuel Rail Pressure Too Low
P0401EGR System Insufficient Flow Detected
Message Closed

car Vehicle Data

2008 GMC Sierra 3500 HD WT

VIN 1GTJK33638
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsHesitation, MIL Lamp On
OccursOn Accel

Trouble Codes

P0087Fuel Rail Pressure Too Low
P0401EGR System Insufficient Flow Detected