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2003 GMC Sierra 2500 HD SLE 6.6L Poor Starting
Posted to GM Driveability on 9/8/2017 9 Replies

Complaint of hard starting. NO codes. Needed ether to get going. Check glow plugs, had failed relay. Replaced relay, changed glow plugs at same time due to age. Found air filter plugged and replaced. Put gauge onto supply line, pulling 6" vacuum, changed filte...

9 Replies Received (View Replies)

  Related Documents & Media  2003 GMC Sierra 2500 HD SLE

 
Message Closed w/FIX

car Vehicle Data

2003 GMC Sierra 2500 HD SLE

VIN 1GTHK23183
Engine6.6 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection / common rail
EmissionsOBD-II Compliant
SymptomsPoor Starting
OccursAlways
Misc.Crew Cab
Message Closed w/FIX

car Vehicle Data

2003 GMC Sierra 2500 HD SLE

VIN 1GTHK23183
Engine6.6 L / 8 cyl / DIESEL
Trans5-speed Automatic (Electronic)
DeliveryFuel Injection / common rail
EmissionsOBD-II Compliant
SymptomsPoor Starting
OccursAlways
Misc.Crew Cab