2003 GMC Sierra 1500HD Consumer Discussions

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1500 hd won't start the first time
Written by: 49faithfull on Aug 25, 2010 9:02:22 PM
How's it going everyone? I need some help with a problem I have had for a few months now. I have a 2003 GMC Sierra 1500hd 6.0L pick up with 86,000 miles and it will not start the first turn over. If I then proceed to try again it will start either the second or the third time. If I have driven it recently it usually starts up the first time. ... Read More
Re: 2003 gmc sierra 1500hd slt crew cab [kylegmc2003]
Written by: obyone on May 5, 2010 1:07:08 AM
The hit the gas part reminds me of those Chevies that used to have a binding throttle body due to carbon buildup on the linkage or the throttle plate. Try check to see if either has a buildup or if the throttle plate linkage is bent.
2003 gmc sierra 1500hd slt crew cab
Written by: kylegmc2003 on May 4, 2010 5:13:33 PM
Engine codes that I was told about was to replace my "throttle body module" computer part mechanic said. I am looking for a better answer either replace the throttle body itself or the mass air flow sensor. My truck is hesitant and I have to really hit the gas to get it going. It is def. not the same power from when I first bought it. Also everytime I start the ... Read More