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Wiring diagram for fuel pump sending unit 1994 chevrolet 3500 truck

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1056 Answers

SOURCE: 1994 Toyota Truck 22R Engine

If you're doing it by yourself, drop the fuel tank.
Make sure it's almost out of gas first.

If you pull the bed, it's the bolts that hold the bed in, the wiring to the tail lights, and the tank filler neck to take loose. Then you have to pick up the bed of the pickup (a couple hundred pounds).
To get the tank out, it's the filler neck, and unbolt the straps that hold it in. Depending on how much fuel is in it, is how much it's going to weigh.
But as you loosen the straps, you can use a floor jack to hold the tank up. Same when putting it back in.

So I would go with taking the tank out, and not pulling the bed off.

Posted on Aug 01, 2008

  • 84 Answers

SOURCE: electric fuel pump wiring harness diagram

Your best bet is to type it in to autozone.com and got to the repair section. it will tell you there.

Posted on Apr 23, 2009

mechanicm639
  • 253 Answers

SOURCE: 2001 Chevrolet Impala 3.8 fuel pump wiring diagram

The wires should be grey, orange and black, purple, and a black wire. The purple goes to purple, grey to gray. The orange and black goes to the small black wire on your car harness and the black goes to the bigger black.

Posted on Apr 30, 2009

  • 1 Answer

SOURCE: 1994 S10 Blazer Fuel Issues?

YOU SHOULD INSTALL ORIGINAL GM PART AND NOT AFTER MARKET. I INSTALLED 2 AFTER MARKET PUMPS THEY WORKED FOR A WHILE THEN STOPPED. THE PROBLEM WAS NOT ENOUGH PRESSURE, SINCE I INSTALLED GM PART NO PROBLEM.......

Posted on Jun 27, 2009

  • 52 Answers

SOURCE: fuel pump wiring diagram 1988 chevy truck

I personally have 1988 GMC truck and had to replace the fuel pump. I found all the info including wiring diagram in a haynes repair manual. These can be purchased in most automotive parts stores. Something I found interesting is that the fuel pump's operation works through the oil pressure switch, located by the distributor screwed into the engine block. If this switch is stuck or sticking it will affect the fuel pump. Replaced a good fuel pump for nothing! The truck had sit up for awhile and the ground wire connections had to be cleaned as well.

Posted on Sep 17, 2009

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Should be a pretty simple project.
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