Question about 1994 GMC Sierra

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Where is the fuse for the fuel pump on a 1994 gmc sierra?

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If you take the bed off you will need 2 or more people to help take it off and put it back on . There are only 2 long bolts to drop a tank and to me it is easier to drop it then to remove the bed of your truck .
Just make sure that the tank is empty .

Posted on Oct 05, 2014

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It's in the fuse box under the hood...also check the relay while you are at it.

Posted on Jan 22, 2013

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Posted on Jan 02, 2017

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SOURCE: 1997 gmc sierra p/u 5.0l 2wd needs fuel pump

NO dont drop tank, you will be sorry, take bed off, only like 6 or 8 bolts, and you will have more room to work, and its a pain in the *** to undo the lines and drop the tank, you cant get in there to do it, but just basic tools nothing special, be sure and try not to make any sparks while takein off that ring to get the pump out, and put an ac delco pump on there

Posted on Feb 11, 2009

  • 1 Answer

SOURCE: 94 GMC truck diesel starts,runs and then dies and will not start

I have the same problem and have trouble codes 35 and 36. I found out that there is a computer module that needs replaced as it sits low in a valley and gets hot and seperates. I am reseaching about the a/m fix that installs the new module away from heat.

Posted on Mar 12, 2009

dennymulford
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SOURCE: 1998 GMC Sierra- runs rough then stalls when

had this problem on my neighbors 98 chevy truck with the same engine !!
it turnd out too be the fuel pressure regulator,you have too pull the upper intake too replace it!!

Posted on Jun 06, 2009

  • 3 Answers

SOURCE: GMC Sierra 1994 The ctsy fuse .

Hi; I believe the cigar lighter is on that fuse and that was a problem on these vehicles.

Posted on Jun 16, 2009

csmock132
  • 4669 Answers

SOURCE: 1987 GMC sierra , no fuel pump power.

The inline fuel pump fuse on the passenger side firewall is good? Are you jumping it with 12 volts at the test lead or the fuse?

Posted on Jun 26, 2009

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1 Answer

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Fuel pump fuse blows when turn on ignition


U might have a short in the wire or in ur computer relay to ur fuel pump easiest thing would b to have a technician look at it

Sep 05, 2011 | 1994 GMC Sierra

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Will not start but if i put alittle gas in carbator it will start till fuel is gone. fule pump? fuse? relay?how do i check? 1994 gmc 2500 350 motor


you should be able to hear the pump run inside the fuel tank. on the firewall there is a relay under the black cover on the passengers side, thats the fuel pump relay. the ORANGE wire should have 12V, The wire going to the pump is GRAY and should have power when cranking. . theres also a 20 amp fuse there, make sure its good. If the gray wire has power, most likely the pump is bad. At the pump there is a BLACK wire that attaches to the frame near the left rear wheel, thats the ground for the pump make sure its good and tight.

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can be a few problems but the most common is fuel filter clogging---the others are egr valve carboning up [remove and clean carbon with a strong carb cleaner ]--fuel pump check fuel pressure--pcv valve --cat converter clogging--air filter -throttle body/carb needs cleaning--or tune up these are a few

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Replace the pickup coil in the distributor,this pulsates the injectors.

Apr 14, 2010 | 1994 GMC Sierra

1 Answer

1997 Gmc Sierra fuel pump relay has no power


check fuse and fuse panel connections

Oct 29, 2009 | 1997 GMC Sierra

1 Answer

Fuel pump fuse located on 1997 gmc sierra


The fuse is actually a Relay Switch and its located in the Fuse Relay Center on the driverside of the engine compartment. The Black Box is labled Fuse Relay Center, the diagram on the cap displays which Relay is the Fuel Pump relay...the Relay switch is usually $8-$15 depending on where you shop

Jul 06, 2009 | 1997 GMC Sierra

1 Answer

I have a 1994 gmc 3500 6.5 ltr diesel and the fuel pump is not getting any power going to it.. can someone please help me figure out how to track the problem down and fix it.


the fuel pump is in line, replace it, it's cheap.. If it's still not getting power, then you gotta start tracing the wiring and looking for the electrical short.. Check the fuses too.. When it doubt, think cheapest first..

Mar 12, 2009 | 1994 GMC Sierra

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