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tow/haul mode

Discussion in 'Chevy Trucks' started by chev2500plow, Nov 30, 2007.

  1. chev2500plow

    chev2500plow Member
    Messages: 40

    I was wondering if any of you guys plow in t/h mode or not, is there a difference in gas mileage or not. thank you
  2. larryhd

    larryhd Senior Member
    from vermont
    Messages: 213


    I run my T/H on it helps keep RPMS up when I'm doing dirt roads
  3. Sydenstricker Landscaping

    Sydenstricker Landscaping PlowSite Veteran
    Messages: 3,882

    Bigger lots yes, it helps keep the truck in the power band when you are pushing alot of snow. When I am just doing resi's, I leave it off, since the truck spends a lot of time in reverse
  4. Philbilly2

    Philbilly2 2000 Club Member
    Messages: 2,126

    Tow/Haul will modifiy shift points to increase pullin/pushing power by holding RPM's. As for fuel eco. i don't think you will see any change.

    It also changes the shift pattern. On my Allision the pattern goes:

    Regular shift pattern: 1 2 3 4 5 TC
    Tow/Haul pattern: 1 2 TC 3 4 5

    TC= Torque Converter Lock up.

    The only thing I don't like about tow/haul is that is slips the torque converter to slow you down. Not really a bad thing on a stock truck, but my torque converter is so far gone, any slip is not good for it.
    Last edited: Nov 30, 2007
  5. chev2500plow

    chev2500plow Member
    Messages: 40

    Thanks for the input