Question about 1993 GMC Sierra K1500

1 Answer

No fuel pump voltage

I have no voltage to the fuel pump. No voltage out of the fuel pump relay, no voltage to / from fuel pump fuse on the fire wall. All cab fuses are good.

Posted by on

  • 1 more comment 
  • tomrinerjr Feb 14, 2009

    Key turned on, not cranking. I also have an error code of 54 on the diagnostic trouble code. (42 and 43 as well.)

  • Bruce Bracey
    Bruce Bracey May 11, 2010

    Was voltage measured with the engine cranking or with thekey turned on and not cranking.

    Let me know.


  • Anonymous Mar 16, 2014

    blowing fuse to fuel pump relay



1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert whose answer got voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 3 Answers

Check all grounds and if they are ok check for broken wires

Posted on Mar 15, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer


Need to test for voltage drop at the ground and feed sides of the relay and at the pump. At 15 years of age corrosion can cause problems.

Jun 23, 2015 | Ford Cars & Trucks

1 Answer

1986 posche 928s no fire to fuel pump

Check for voltage at the fuel pump relay and also check the fuses. ALWAYS #1 check for POWER and GROUND!!

Jul 22, 2012 | Cars & Trucks

1 Answer

99 dodge 24 valve... no voltage to the factory lift pump..

My dad has a 96 Ram Cummings and he ended up changing a relay on the fire wall. There are two of them beside each other. If you turn your key on and go under the hood on the drivers side push up the linkage on the bottom of the actuator it should stay in place now go inside and see if it will start. That actuator has to be up or it won't start if it's not going up when you turn the key on it's that relay on the driver side firewall.

Nov 01, 2017 | 1999 Dodge Ram

3 Answers

No power to fuel pump car was running fine just quit repalced fuel pump no power to pump, car will start when spraying starting fluid in to intake, is there a fuse ? also replaced ECM, fuel filter,...

Check for 12 volts power at the fuel pump harness. If no power is going to the pump, check the fuel pump relay. Also, check the fuel pump inertia switch. Ford usually has it on either inside left or right rear trunk fenders.

Apr 09, 2010 | 1987 Ford Taurus

2 Answers

Fuel pump stays on after engine is turned off The pump continues to run for several hours discharging the battery

Unplug the fuse going to the fuel pump. If this stop the fuel pump from running. If it does, then go to the fuel pump relay after plugging the fuse back in and unplug it and see if the pump stops running. If it does the relay is stuck in close position and will need replaced. You can uplug the fuse and replug the fuse to the fuel pump until you get it solved. It usually is a yellow 25 amp fuse that is under the dash.

Jan 31, 2010 | 1990 Buick Regal

1 Answer

2001 SATURN L-300 no fuel pressure, change fuel pump

if you have no fuel pressure check the fuse n the underhood fuse block even if its good its still most likely the fuel pump is bad the fuse rarely blows even when the pump is bad,,the 6 cylinder only produces fuel pressure when cranking the enigne

Oct 01, 2009 | 2001 Saturn L-Series

1 Answer

1992 Dodge Grand Caravan engine failure

There is not fuse for pump but a relay in the relay block. I do suggest jumping to see if pump turns on. Test voltage from ECM if needed. If voltage is to pump, then pump is shot. If not voltage, relay may be bad

Sep 11, 2009 | 1992 Dodge Grand Caravan

2 Answers

Fuel pump relay

It's not in the fuse box.The main fuse box under the hood,It's a little closer to the fire wall.

Jan 26, 2009 | 2001 Mazda Millenia

2 Answers

1992 1500 will not start

even though the relay clicked dosn't mean that it's good it could be weak and therefore the gate inside the relay doesn't make a contact to allow the voltage to the pump. i would switch out the relay. quick way to find out for sure is to switch the a/c clutch relay with the fuel pump relay. it should start if it doesn't then you have a loose wire to the pump or a broken wire aor a bad ground. check these out.. please rate this..thanks

Sep 06, 2008 | 1992 Chevrolet K1500

Not finding what you are looking for?

Open Questions:

See all 1993 GMC Sierra K1500 Questions

Cars & Trucks Logo

Related Topics:

262 people viewed this question

Ask a Question

Usually answered in minutes!

Top GMC Experts


Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6927 Answers

Are you a GMC Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides