1993 Peterbilt 375 won’t start, help troubleshoot the problem.

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Lazer, Sep 15, 2021.

  1. Lazer

    Lazer Medium Load Member

    552
    684
    Jan 22, 2017
    0
    1999 ISMV in a 1993 375 Pete. Cranks over good, but no fire. No smoke from stack.
    Key w/push button starter.
    Fresh fuel
    All fuses appear good
    How do I check electronic fuel shut off is working proper.
    Engine will run on starting fluid, but hate to keep using it.
    Ran about 2 months ago.
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. Ross_Tech

    Ross_Tech Light Load Member

    90
    75
    Aug 31, 2021
    Michigan
    0
    Use a test light to see if you're getting voltage to it with the key on. Even though it only has one wire, verify that it has a good ground through the case. Sometimes you can put a strong magnet on the back of the shutoff solenoid and get it to start.
     
  4. Lazer

    Lazer Medium Load Member

    552
    684
    Jan 22, 2017
    0
    I don’t have my test light with me today. I cracked loose(actually took all the way off) the fuel line from on top the pump, going into the side of the engine( that’s were I unhooked it) turned the key, and hit button, all kinds of fuel comes pumping out. I think the solenoid is good?
    Re-attached, hit the button, cranks over good by no fire.
     
  5. Ross_Tech

    Ross_Tech Light Load Member

    90
    75
    Aug 31, 2021
    Michigan
    0
    Did those have ECM fuses in the battery box?
     
    Last edited: Sep 15, 2021
  6. Lazer

    Lazer Medium Load Member

    552
    684
    Jan 22, 2017
    0
    There is a 60 amp fuse in the battery box, switched that just to be sure, there are a couple 15 amp in line fuses near the rear of the engine. All fuses appear good in the fuse box.
     
  7. Ridgeline

    Ridgeline Road Train Member

    17,812
    75,495
    Dec 18, 2011
    Michigan
    0
    Check the multiple ECM fuse wiring from the battery and check your grounds, I think there is three.
     
  8. Lazer

    Lazer Medium Load Member

    552
    684
    Jan 22, 2017
    0
    Yes there are 3 wires coming in, in a harness, all 3 should connect to positive battery posts?
     
  9. spsauerland

    spsauerland Road Train Member

    3,853
    9,842
    May 31, 2010
    West Harrison, In
    0
    99 engine in a 93? Sounds like a Frankenstein. Does it have a check and shutdown engine lights?
     
    Magoo1968 Thanks this.
  10. Lazer

    Lazer Medium Load Member

    552
    684
    Jan 22, 2017
    0
    It has the whole bank of lights up above the sun visor.
    It definitely is a replacement engine, different paint on the engine, mounting bolts, brackets, etc.
    This is the same truck that has a shifter of a 13 sp, but the numbers on the trans indicate it’s a 6-10 RoadRanger.
     
  11. Lazer

    Lazer Medium Load Member

    552
    684
    Jan 22, 2017
    0
    Slight correction, the lights on the dash above the gauges, not the visor.
    The check engine light, and stop engine comes on with the key, when the white wire with black stripe is hooked to a negative battery terminal. Neither will light up if unhooked.
     
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  • Draft saved Draft deleted