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Hi I have a ldv 400 convoy 2002 bio fuel tipper crew cab my fuel pump electrics melted on the pump I could not find one any were so I made one and I tested it on a battery it works I put it on my truck solded new wire on with a plug sent power from the relay wire with a prob and the pump worked wen I put power down to the pump but wen I turn the key on it blowing fues any ideas my pump has a purple wire and a black wire going to it on the out side and on in the in side off the pump in the fuel tank it has red and one black I have put p to r and b to b does any no if this right . Any help would be grate

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  • Cars & Trucks Master
  • 14,585 Answers

You put power from the relay to the pump, it worked. That wire is good. The wire from the fuse to the relay is bad. Your going to have to look inside the fuse panel.

Posted on Mar 28, 2015

  • Rightfullyowners Brothatmydirtbike

    Thanks for yr time I went throw the wires and it turn out to the number plate light earth wire had come off now that problem is soved pump is working it doing the test now now I got a new problem the engine been dry for a long time any ideas how to get fuel round the engine and do u no wen the fuel will return to the tank. Thanks agen

  • Randy Ohler Mar 30, 2015

    If you don't have a primer, Then crack one of the injector lines open at the injector. Crank it till fuel comes out or even starts. It will smoke until the air is purged. If you have rouble this way, you may try filling the fuel filter, then crack the line.



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Posted on Jan 02, 2017

  • 7 Answers

SOURCE: fuel pump 2000 chevy blazer

Check your connections. did you run the fuel pump wiring under the drivers side door sash like GM did?.. if so check for nicks in the wire or bending or cracks.. this happens.. happened to me. check your fuel pressure. 40 dollar part at an auto store. If its below 59 PSI it wont work. And blazers are very intolerable to low fuel pressure. Also try taking the negative post off your battery for a little while and then putting it back on and if you can get it started again drive around (if its safe and running decent) for at least 30 minutes to get your car computer system acclimated to a new functioning part. Did you check the fuel filter?. rule of thumb when a pump goes change the filter its always the last thing people expect because we all jump to catastrophic engine failure at the first no start moment. lol.
Make sure that all your ducks are in get my drift.. Air oxygen fuel thats the mixture you need to check all those vital parts. before pulling your head off.

Posted on Aug 08, 2008

  • 150 Answers

SOURCE: new fuel pump had to be hot wired thruogh a toggle switch, stock connections not working.

Check the fuel pump relay

Posted on Nov 03, 2008

  • 253 Answers

SOURCE: 2000 S10 4.3L

At the fuel pump relay you should have 1 full time hot wire. 1 hot wire when you turn on the switch. 1 ground, and the other wire goes to the pump. Test the ground to be sure it is good. If so then jump a hot to the one that goes to the pump and see if it runs.If it does then you have a bad relay or ECM. You can swap the relay with another of the same # from tour fuse box to test it.There is also a ground on top of the frame near the filler neck, check it too. Good Luck

Posted on May 06, 2009

  • 3489 Answers

SOURCE: 2002 GMC Sierra 1500 fuel system

first off do not use a test light. use a circuit tester. what you saw as 5volts is called a reference signal. the cars computer(much like your home computer)works only off 5 volts. if you use a test light(the old kind with a light bulb.)you will fry the computer. second, are you saying the problem is still occuring after these parts have been changed?

Posted on Dec 28, 2009

  • 4399 Answers

SOURCE: Fuel pump issue with 1993 dodge dakota. New fuel

Thanks for choosing FixYa and welcome. You should have power to more wires then one. If I were you, I would run a wire straight to the pump from the battery to see if the pump will turn on. I know one wire is for the fuel gauge. Then the out and return line, then grounds. This could also be the ECM. You should switch the relay out with another to see if that does help. I am not for sure if that is what you mean when you say the relay fuse.

Posted on Jun 03, 2011

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How do you replace a fuel pump in a 1997 ford f350 crew cab

Removal & Installation 88285g11.gif

Details of the fuel pump assembly
Click to Enlarge 88285g12.gif

View of the fuel pump
Click to Enlarge

  1. Disconnect both battery ground cables.
  2. Properly relieve the fuel system pressure.
  3. Raise and safely support the vehicle securely on jackstands.

The electrical connector is located behind the fuel pump near the frame rail.

  1. Detach the fuel pump electrical connector.
  2. Remove the fuel line retaining clip and discard, then remove the fuel line from the fuel pump.
  3. Slide the clip up and off from the quick connect fitting. Insert the fuel line tool and remove the fuel pump delivery line.
  4. Unclip the brake lines from the fuel pump bracket.
  5. Loosen the pinch bolt and spread the mounting bracket.
  6. Remove the fuel pump.

To install:

  1. The installation is the reverse of the removal.

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