How do I replace the fuel pump?

Tiny
BLACKOP555
  • EXPERT
First steps first. Check your fuel pressure. Then from there check to see if the injectors are getting a pulse this can be accomplished with the use of a noid light
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Saturday, August 17th, 2019 AT 12:40 PM (Merged)
Tiny
PATTY40
  • MEMBER
  • 1990 DODGE DAKOTA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 183,900 MILES
I just changed the fuel pump on my 1990 Dodge dakota 3.9 Engine.I bought a cheap one off Ebay. Anyway the truck did run before I changed it out but was hard to start and stalled once in a while. When I took the old pump out it had a busted fuel line nd the pump had a rattle. So hey maybe I thought the pump is bad after all. When I attempt to crank it I spray throttle cleaner in it then it runs for a second and quits.I had put new injectors in it before u changed the pump. Their isn't any fuel going to the injectors also I put 4 Gallons of gas in it. So what could it be I can hear the pump click for a second.
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Saturday, August 17th, 2019 AT 12:40 PM (Merged)
Tiny
2CEXPT
  • MEMBER
Disconnect the injector/s harness -hook up a noid lite to it, have helper crank engine over -is the noid lite flashing?
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Saturday, August 17th, 2019 AT 12:40 PM (Merged)
Tiny
DOUGLASMJR@BELLSOUTH.NET
  • MEMBER
  • 1991 DODGE DAKOTA
  • V8
  • 4WD
  • AUTOMATIC
  • 140,000 MILES
How to replace fuel pump and where is it located
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Saturday, August 17th, 2019 AT 12:40 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
Hi:
The fuel pump is in the fuel tank. From experience, the easyiest way to replace it is to remove the bed. There are 8 bolts holding it on, a couple wiring harnesses for the rear lights, and the filler tube which is attached by three screws. All you need is someone there to help you pick it up. Once it's off, you have full access to the top of the tank.

If you have any other questions, let me know.

Joe
NOTE: I recommend this way because fuel tank straps are usually rusted, and the tank is plastic and very easy to break when replacing it.
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Saturday, August 17th, 2019 AT 12:41 PM (Merged)
Tiny
DAVISBLACK
  • MEMBER
  • 1988 DODGE DAKOTA
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 350,000 MILES
I replaced my fuel pump it starts automatically it runs for five minutes then stalls every time can you help me?
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Saturday, August 17th, 2019 AT 12:41 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
Is the pump shutting down? If so, have you checked the fuel pump relay?

Let me know.
Joe
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Saturday, August 17th, 2019 AT 12:41 PM (Merged)
Tiny
DAVISBLACK
  • MEMBER
Im getting fuel to the carb. So shouldnt that mean that the relay is working? I dont the have the tester for the relay so I havent checked for sure. Some people have told me it could be the ADS relay or the fuel pressure regulator. Does that make any sense to you?
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Saturday, August 17th, 2019 AT 12:41 PM (Merged)
Tiny
JACOBANDNICKOLAS
  • EXPERT
If the ASD was bad, it wouldn't run. Also, if you still are getting fuel to the carb, then the pump is working which leaves us with spark. Does the engine start right back up? If it doesn't, will it start for a few seconds with starting fluid?

Finally, to answer your question, I did some checking and the truck is fuel injected. So, you could have a plugged fuel filter or a bad regulator that limits the fuel from getting to the injection. If you take off the air filter cover you will see the injectors. There should be a cone shaped mist of foel coming from them when the engine is running. Check to see if it stops. If it does, see if the truck will start with starting fluid and let me know what you find.

Joe
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Saturday, August 17th, 2019 AT 12:41 PM (Merged)

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