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Diesel Question

Discussion in 'Trucks and Trailers' started by GravelyGuy, Aug 10, 2007.

  1. GravelyGuy

    GravelyGuy LawnSite Silver Member
    from Indiana
    Messages: 2,548

    For those of you that use your diesel trucks for lawn maintenance, do you turn them on and off at every single stop? From what I have heard this is bad for the turbos.

    How much fuel will a 6.0 power stroke using idling for an hour?

  2. mike33087

    mike33087 LawnSite Member
    Messages: 108

    in most states its ILLEGAL to leave your vehicle running without the operator in it
  3. TXNSLighting

    TXNSLighting LawnSite Fanatic
    from DFW, TX
    Messages: 6,464

    DO NOT LEAVE A 6.0 IDLING. that is very bad for the 6.0. Thats been one of the issues making them bad. if the majority of people would turn them off, they wouldnt have as many problems.
  4. Fatboy

    Fatboy LawnSite Member
    Messages: 56

    Idling a diesel can cause it to wet stack and put fuel in the oil, wash down the cylinder walls, and cause excessive wear.
    If you need to run the truck while sitting then get an idle up kit or if your lucky a little bit of wire and a SPST switch will set the idle at 1200rpm.
    My truck is an 03 6.0L/6sp and the idle up is not implemented in the ECM for the manuals.
    Check on the Diesel Stop and Ford Truck Enthusiasts websites for more info.

  5. TXNSLighting

    TXNSLighting LawnSite Fanatic
    from DFW, TX
    Messages: 6,464

    its only the newer diesels that arent suppose to be left idling. the older cummins and 7.3's could handle 2+ hours no problem.
  6. Lynden-Jeff

    Lynden-Jeff LawnSite Bronze Member
    Messages: 1,405

    I just bought an 04 6L diesel. In the winter how long can I leave it idling? Will I have issues with restarting?

  7. lawnmaniac883

    lawnmaniac883 LawnSite Silver Member
    Messages: 2,613

    Leaving it at idle is pointless shutting off the truck aint gonna hurt your turbo.
  8. lawnspecialties

    lawnspecialties LawnSite Silver Member
    Messages: 2,524

    If you've been pulling a heavy load or something similar, this will cause your EGT's to rise, thus heat up the turbo a good bit. When you get to your destination, and you feel what you've been doing has been enough to heat things up a bit, let it idle just a couple of minutes. This will cool down the turbo a plenty.

    FIRESCOOBY LawnSite Senior Member
    Messages: 986

    Actually...no. It's bad for any diesel to be left idling unless there is a way to idle it to 1000rpm or more. At idle, incomplete combustion occurs and like one member mentioned...wet stacking or washing. It's not good for any diesel to be left idling for more than 5-10 minutes.

    BTW, I turn mine off at every stop. I let it idle for 1-3 minutes depending on the load I've put on it prior to stopping.
  10. GravelyGuy

    GravelyGuy LawnSite Silver Member
    from Indiana
    Messages: 2,548

    Good advice guys, one question though. How do semi drivers leave there trucks running all night? Do they have something to make them idle higher?


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