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-   -   need some help 6.5 (https://www.dieselbombers.com/chevy-gmc-6-2l-6-5l/117114-need-some-help-6-5-a.html)

olsmokey 11-26-2013 05:17 PM

need some help 6.5
 
my buddy just picked up a really nice single cab 3/4 ton 4x4 with a rust free body and new rims and tires. truck sat for about a year with not much fuel in it, and it was running and driving but running rough. i changed the fuel filter and drained the water from the water seperator. ran like a top, no more skipping and hogging up, for about 50 miles... now its right back to it skipping and is absolutly gutless. any ideas?

racer55 11-26-2013 06:03 PM

I'd change the fuel filter again and ensure that the lift pump works when the engine runs.

It would help a lot to know what year it is-they are not all the same.

olsmokey 12-02-2013 07:50 AM

problem solved, it was the pmd


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