01 Duramax No Power, rough idle - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 5 (permalink) Old 01-29-2009, 08:58 PM Thread Starter
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01 Duramax No Power, rough idle

Just picked up an 01 3500 mason dump duramax with about 60,000 miles on it and the truck idles kinda rough and if you just free rev the engine it breaks up a little bit. Other than that the truck rides nice but it seems kind of gutless would it be something related to it idling rough?? i changed the fuel filter thinking it was that but it still runs the same.
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post #2 of 5 (permalink) Old 01-30-2009, 12:04 AM
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sound likes somebody's ready for a set of injectors.
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post #3 of 5 (permalink) Old 02-15-2009, 07:25 AM
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Yup, sounds like injectors to me. We've actually had that problem but it was caused by a bad lift pump before.

2001 Chevy SB/CC Duramax LB7

Garrett GT4088R from PPE, PPE Duel fuelers, PPE Tuning, PPE stage 4 transmission w/suncoast 1056 converter, PPE Lift pump, Fabtech tie rods, Black Eagle alloys.
Engine is apart and in the garage
Goal is to have it done by the end of this summer.
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post #4 of 5 (permalink) Old 03-03-2009, 06:20 PM
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could also be the injection pump
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post #5 of 5 (permalink) Old 03-06-2009, 01:30 PM
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Fuel pressure regulator would be my opinion. Only way to check is to hook a Tech2 up to it.
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