Question about 1998 Chevrolet C3500

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Also Im running my fuel pump direct off my fuse box cause it dont come on with Ignition, checked all fuses they are good is there a relay for pump and if so where.thank you.

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  • Chevrolet Master
  • 33,359 Answers

The fuel pump relay is located in the underhood fuse-relay center. The vehicle control module (VCM) handles relay operation

Posted on Nov 07, 2012

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6ya6ya
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Posted on Jan 02, 2017

SOURCE: 99 chevy blazer wont stay running

there is a lttle type of valve filter in the gas line the size of a spark plug, i had same problem.

Posted on Sep 17, 2008

Molson02536
  • 3854 Answers

SOURCE: fuel pump problems 2003 s10 chev 4.3 v6

Your ECU is what acctivates your fuel pump realy. Put the key on the run possition and pull the ecu fuse for a few seconds and reinstall it ans it should accivate your realy for 5 seconds, Good luck.

Posted on Apr 06, 2009

  • 14036 Answers

SOURCE: 2000 S-10 NO power to fuel pump

check your fuel injectors fuses they tie in with fuel pump.

Posted on Apr 12, 2009

  • 8 Answers

SOURCE: no fuel

Be sure you have checked the impact safety switch. Your owner's manuual should tell you where it is if it has one. This switch kills the power to the fuel pump after impact. It has a push button reset. Check for voltage at fuel pump to rule out having to change the pump again.

Posted on Jun 02, 2009

  • 7 Answers

SOURCE: 90 k1500 tbi no fuel from injectors

from the sounds of it its going to be one of 3 things 1) the injector is bad or 2) there is no power getting to the injector 3) bad relay switch.

1) to find out if the injector is good. pull the injector out and with some wire ground one side and touch the other side to your battery, every time you tap the wire to the bat you should here the injector click..

2) if injector is good get a test light and test to see if power is coming out of the wires that go to injector( on some vehicles you have to have the motor turning over befor power is sent through wire, so have someone turn the key while you check the wires with test light)

Posted on Aug 15, 2009

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Im looking for the fuel pump relay on the 2008 pathfinder V6, also should there be current at the fuel pump fuse with the ingnition on


Fuel pump fuse # 48 15 amp ? Should have B+ voltage with the ignition switch on . There is a ignition relay that supply's B+ to fuse #48 . Ignition relay and fuel pump relay or both located in the under hood fuse / relay box .

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Where is fuel pump fuse


4.0L engine inline 6, ? must i guess that? EFI varies by that.

its in the fuse box? i bet you want fuse actual name....
ok, 89 is a very old car, sold all 2 of mine. early XJ jeeps. (AMC )
the 89s have this junk french ECU. called RENIX google this pos.
no scan tools fit it, is why i dont like it.
93 up are good jeeps.

my guess is , engine dont run, why not give full inputs to the tech.
like that. so i can be on same page.... yah think?
but ok, ill play this game.....
Easter egg hunts to nowhere.
normal fuel pressure is 31PSI.
if zero pressure we check 12vdc at pump cranking.
if zero volts at pump cranking. then check fuel pump relay.
all 4 pins, (ask for checks )


the fuel pump relay has 2 fuses. one is ignition fuse link F green
and the pump fuse is G orange.
the full schematic is at alldata.com anyone can look, pay fee.

of fuel pressure is ok and injector dont inject well that is a longer story, that i can answer easy, so ask.

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I dont haVE POWER TO THE FUEL PUMP NEED TO KNOW IF THE PUMP HAS A RELAY OF FUSE AND WERE IS IT AT ALSO IF THE POWER COMES DIRECTLY FROMTHE ECU


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