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'99 - '06 GM Truck Modifications
Engine & Performance
Engine Problem
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<blockquote data-quote="K-Mart" data-source="post: 13325" data-attributes="member: 1242"><p>I have a 03 GMC 2500HD with a 6.0. Every time winter rolls around the truck starts to act up and wont rev past 3 grand or sometimes even 2 grand. It seems to happen only in the winter when its cold but get worst went there is moister in the air. I have changed spark plugs, wires, coils, injectors, MAF, throttle body, 02 sensors and has no cats and has been tuned to run with no cats. i have checked all grounds and seem to be fine and its not pulling up any codes. Has anyone else had this issue?</p></blockquote><p></p>
[QUOTE="K-Mart, post: 13325, member: 1242"] I have a 03 GMC 2500HD with a 6.0. Every time winter rolls around the truck starts to act up and wont rev past 3 grand or sometimes even 2 grand. It seems to happen only in the winter when its cold but get worst went there is moister in the air. I have changed spark plugs, wires, coils, injectors, MAF, throttle body, 02 sensors and has no cats and has been tuned to run with no cats. i have checked all grounds and seem to be fine and its not pulling up any codes. Has anyone else had this issue? [/QUOTE]
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'99 - '06 GM Truck Modifications
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