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Shane Craven Posted on Oct 25, 2017
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1986 s15 jimmy after long drives fuel pump does not shut off with ignition and when checking relays engine continues to run after unplugging fuel pump relay and oil pressure relay

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jack layton

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  • Cars & Trucks Master 5,569 Answers
  • Posted on Oct 25, 2017
jack layton
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Pull the ecm B fuse, that should kill it? Hopefully the fuse is close to fuel pump relay, that fuse supplies voltage to load side of fuel pump relay and the oil pressure switch. I can't rule out a problem with wiring connector letting the voltage cross-over. Or the voltage circuit to fuel pump is shorted to voltage? My wiring info for your model year isn't that great.

Testimonial: "thanks for the suggestions, this is more a weekend learning to DIY project. I'm other words everyone else's needs come first. I will check out all suggestions as I get them and post feedback as I do. I am almost certain that this issue is from a short i just haven't been able to pinpoint it"

Jerome Mackey

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  • Expert 45 Answers
  • Posted on Oct 25, 2017
Jerome Mackey
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Check your ignition switch it may be your problem, also check to make sure no one has wired into the circuit

  • Jerome Mackey
    Jerome Mackey Oct 25, 2017

    Check your ignition switch it may be your problem, also check to make sure no one has wired into the circuit

  • Shane Craven
    Shane Craven Oct 25, 2017

    thanks for the suggestions,
    this is more a weekend learning to DIY project. I'm other words everyone else's needs come first. I will check out all suggestions as I get them and post feedback as I do. I am almost certain that this issue is from a short i just haven't been able to pinpoint it

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5 Related Answers

Anonymous

  • 373 Answers
  • Posted on Jul 17, 2008

SOURCE: chrysler 3.3 vin r v6 mini van, starts then dies

Charlie. You have replaced the ECM on your van?.
Kedwin,, Your problem is, the computer on that 3.3 L.
Need to be programed with the VIN nember of your car.
The Antitheft System will disable the injectors due a incorrect VIN, Bucause the body computer is not recieve the correct pasword between 5 seconds after start up.
YOU have 2 options. 1 get a ALOHA Smith. some of they have the computer required to program ECMs.

The other option is: Get a new ECM from the dealer, They will program if ask for that.

NOTE:::::: Other way is . Put the body control module with the computer from the same car.

OK... I hope this work for yours.
If NOT letme know I can look for more information.
Thank you.

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Anonymous

  • 25 Answers
  • Posted on Dec 30, 2008

SOURCE: Fuel pump will not run, 96 Neon 2.0 SOHC

Personally I wouldnt bother tracing the wire as it is probably not worth your time, and just run a constant 12v from the battery to the relay on like 10ga wire. There is probably a short somewhere in the system which can be a real headache to find.

Also it may sound dumb, but check your fuses, and the fusible links under the hood. Chances are that they are all fine though, especially if you have dash lights.

Anonymous

  • 112 Answers
  • Posted on Jan 25, 2009

SOURCE: How do I relieve the fuel system pressure on a '96 Mazda 626?

remove the rear seat cushion ,remove the fuel pump access cover ,start the engine and wait for engine to stall ,then turn the ignition off , the fuel system is now depressurized.

Anonymous

  • 68 Answers
  • Posted on Aug 11, 2009

SOURCE: 1996 Toyota T-100 starting problem--- when I first

the fuel pump relay should be located in the under hood fuse box just replace the relay with a new one

jimmy

  • 409 Answers
  • Posted on Mar 09, 2010

SOURCE: 1988 silverado, tbi 350 has 12 psi fuel pressure,

Fuel pressure is a little low, check the pressure regulator, and the fuel filter

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Zidane.tompsoni have a 1986 ford bronco 2 2.9 V6 im haveing some sorta electrical problem after driveing 3-8 minutes the fual pump will shut off and the truck dies i them try to start it up and the starter...

sounds like your fuel filter might be plugged causing the engine shutdown.
sounds like the solenoid on the starter is sticking causing your starter to stay engaged and powered up. the starter will stay powered up and will continue to spin until the starter solenoid is disengaged.
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Where is the fuel pump relay for a 1991 gmc jimmy?

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Relay - Fuel Pump 1991 GMC Truck S15 Jimmy 2WD 4.3L TBI 6cyl The Relay - Fuel Pump Under hood, driver side, upper firewall, mounted in relay block
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