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Bugging me

Discussion in 'Chevy Trucks' started by tmltrans, Jan 20, 2005.

  1. tmltrans

    tmltrans Member
    Messages: 44

    Not a serious problem, but it bugs me. Have 2004 2500HD 6.0 with a thermometer/compass in the review mirror. Without the plow seems to be fairly accurate, but with the plow on it is way off. I have had it go up to 145 going down the road. Anyone else have this happen?
  2. CamLand

    CamLand Senior Member
    Messages: 301

    Yes,mine does that as well.Best temp I got out of it was 178 degrees,I just shut the thing off and add it to my long list of repairs...
  3. streetsurfin'

    streetsurfin' Senior Member
    Messages: 770

    Where is the sensor at for them? With the plow on it must be pulling engine compartment air past it.
  4. calhoun

    calhoun Senior Member
    Messages: 165

    No need to repair anything. The sensor is in front of the radiator. The plow creates a vaccuum behind it. This is interesting because it means air is being drawn backwards from the engine though the radiator. I knew the plow blocked air because I always ran hotter with the plow on just never thought about it creating enough of a vaccuum to draw engine air though the radiator.
  5. z71Worker

    z71Worker Member
    Messages: 89

    same thing here... however, truck never runs any hotter with the plow on..
  6. OneBadDodge06

    OneBadDodge06 Senior Member
    from Iowa
    Messages: 731

    it does it on both my 3/4 hd and it did it on my 3/4 ton dodge