Power problem - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 5 (permalink) Old 10-02-2010, 12:14 PM Thread Starter
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Unhappy Power problem

I have a 2001 4dr I ton GmC Duramax that loses power.I recently made a 500 mile trip & it lost power & wouldnt exceed 60mph.If you accelerate it would just bog down,infact it was hard to get going because it took so long to get it fast enough to shift.I have had the filter changed 4 times in the last 12 months & it helps for a little while & back to no power..Also if I prime the fuel filter it will work for a short distance..The first couple primes it feels like it has air in it.(mushy) Im almost postive its an air issue but this just started out of the blue??Any help, suggestion or reccomendations you can provide will be greatly appreciated..Again,Thank you...
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post #2 of 5 (permalink) Old 10-03-2010, 04:54 PM
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Any codes present? Are the fuel lines up on the engine origanal?

1995 GMC 2500 SUBURBAN, DURAMAX/ALLISON, 3.42 gears, 261 T-case, Trans has a mild build with ALOT of help from MIKE L. which included ALTO's for C1-C4, PI ML converter, DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, EFILIVE, KENNEDY single pump, pump rub kit

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post #3 of 5 (permalink) Old 10-04-2010, 12:51 AM Thread Starter
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2001 duramax

The fuel lines are the original,I actuall havent had a scanner on it yet..I will do that this week--
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post #4 of 5 (permalink) Old 10-05-2010, 02:16 AM
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i would guess your getting air as well, but most air issues will cause the truck to die.....

Aaron the Crazy Canuck
2006 Chevrolet Silverado LT 2500: LBZ - Allison, Greystone Metallic, 4x4,PPE airbox mod, missing muffler/cat, EFILive tuned by Nick at duramaxtuner, MA tie-rod sleeves and Grade C headgaskets
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post #5 of 5 (permalink) Old 10-08-2010, 11:02 PM
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my 03 did the same thing no pwr foot to the floor especislly with a small trailer on it. Found it was the injection pump replaced it now doing 80 with a 10,000 lb trailer on it.
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