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2004 GMC Sierra 2500 HD SLE 6.6L No Start
Posted to GM Driveability on 4/3/2012 16 Replies

hey everyone i need help iam not much of a diesel mechanic. I have this duramax that wont start. Owner replaced his own fuel filter and after a couple hours driving he noticed lack of power and his fuel pressure was dropping down he could not remember to what ...

16 Replies Received (View Replies)

  Related Documents & Media  2004 GMC Sierra 2500 HD SLE

 
Message Closed w/FIX

car Vehicle Data

2004 GMC Sierra 2500 HD SLE

VIN 1GTHK29184
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Standard
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsNo Start
OccursAlways

Trouble Codes

P1621Control Module Long Term Memory Performance
Message Closed w/FIX

car Vehicle Data

2004 GMC Sierra 2500 HD SLE

VIN 1GTHK29184
Engine6.6 L / 8 cyl / DIESEL
Trans6-speed Standard
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsNo Start
OccursAlways

Trouble Codes

P1621Control Module Long Term Memory Performance