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2001 Ford F350 diesel won't start

Discussion in 'Mechanic and Repair' started by mowingguy, Jan 21, 2008.

  1. mowingguy

    mowingguy Guest
    Posts: 0

    unless plugged in. It even needs plugged in when it is 80 degrees out.

    Please let me know what other details you need to help solve this. -SL
  2. BZB_Helpers

    BZB_Helpers LawnSite Member
    Posts: 131

    glow plugs and/or glow plug relay. but it should start unaided at 80*F, mine did to about 50*F with all 8 glowplugs dead. When you try to start without the block heater, do you get white smoke out the exhaust?
  3. Landrus2

    Landrus2 LawnSite Platinum Member
    Posts: 4,812

    Sounds like a high mileage truck if it needs to be plug at 80 degrees
    I would replace the relays and se if your glow plugs are not shot
    Use an amp clamp and measure glow plug amperage. Amp draw should be around 190and taper off to around 125 amps after 15seconds I think that more o less it:drinkup:
  4. LindblomRJ

    LindblomRJ LawnSite Silver Member
    Posts: 2,570

    Check the glow plugs and controller out. Start with fuses and circuit breakers first.

    Had a 91 with IDI 7.3 that would need attention seemed like every June. Funny thing is you could pull start it, but never get it running with the starter.
  5. lwcmattlifter

    lwcmattlifter LawnSite Senior Member
    from NC
    Posts: 859

    Try jumping the glow plug relay with a screwdriver and cranking the engine over. It sounds like none of your glow plugs are working.

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