DP Tuner install question
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Elder User
Joined: Feb 2008
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From: Irwin,Pa
He had me check to see if the fuel pump runs when I turn on the key. I tried twice & don't notice anything under the truck. Only sound i hear is what sounds like a vacuum pump on the passengers side fender area.
Cargo Master
Joined: Apr 2004
Posts: 3,162
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From: Vilonia Arkansas
If your sure you have the bolt tight on the pcm connector I would try a CPS also they pick the darndest times to die.The fuel pump is at the drivers feet on the inside of the frame rail when you turn the key slide under there and see if you hear it.
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Elder User
Joined: Feb 2008
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From: Irwin,Pa
Yes, I checked it again.. it is tight. The biggest thing that baffles me is when I brought the truck home, it ran great.. No signs of any problems. So whatever happened, I'm guessing is related to what i did. I'm not blaming it on the tuner,just something that happened in my clean-up, install or somewhere along the line. The static is making me wonder as my house is dry, since I heat with a wood stove.
Cargo Master
Joined: Apr 2004
Posts: 3,162
Likes: 1
From: Vilonia Arkansas
Turn the key on and lay your hand on the fuel pump and see if it's running. I bought my truck in Ok towed my F250 home no problems the next day it started cutting out driving down the road .Yep you guessed it was the CPS.
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Elder User
Joined: Feb 2008
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From: Irwin,Pa
Does it run every time? Just making me wonder if all the times I have been trying to start it.. does pressure build up & the pump doesn't always run??
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Elder User
Joined: Feb 2008
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From: Irwin,Pa
Is that related to the CPS then or the PCM?
Lead Driver
Joined: Jan 2007
Posts: 6,708
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From: Kiowa CO
You can open the drain valve on the fuel filter housing and turn the key to the on position. a steady stream of diesel should come out. Be sure to put a bucket under the truck to catch the fuel.
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Cargo Master
Joined: Apr 2004
Posts: 3,162
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From: Vilonia Arkansas
The PCM , when you checked fuses did you pull them out and look at them or did you check for continuity . Sound's like you not getting power to your PCM I'm sure this has been asked did you look at the pins in the PCM connector and make sure they were all straight ? I know this is frustrating but don't give up some one will hit on a fix.
Senior User
Joined: Apr 2007
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From: Memphis
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