H1 with Duramax

H1 (Hummer) & HMMWV Specific Information

H1 with Duramax

Postby Dbdelight » Sat Sep 03, 2016 2:42 pm

Have a low mile H1 with a Duramax, it will run fine then won't hardly run, can't get over 40 mph. Was low on fuel just filled it up. Had fuel filter changed 400 miles back.
When it starts running bad dumps smoke
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Vehicle: 2006 H1

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