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isadream

1999 2500 hesitate/fluttering when pulling a load or hill.

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Hi, My 2500 has started hesitating when pulling a load or a hill when I ask for more power. If I back off it quits. It did it really badly yesterday morning when I was pulling a trailer but on the way home it was great until I started up a very steep hill. Today it was fine until again I started up the steep hill. I live at the top of a mtn and the road is very steep and about 1.7 miles long. I did put some fuel treatment in it and the fuel filter was changed about 10k ago. Any suggestions? TIA!

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any mods to the truck, or completely stock? Codes? fuel pressure?

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any mods to the truck, or completely stock? Codes? fuel pressure?

I dont know if there are any mods. I bought the truck used 10,000 miles ago and none of the lights or on and I dont know how to check the fuel pressure.

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just because no lights are on (i.e. check engine) doesn't mean there aren't any codes, unfortunately.As for checking fuel pressure, the only method is to either install a fuel pressure gauge, or put a fuel pressure tester gauge onto the schrader valve bolt at the pump.

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