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High water temp alarm chirping

Discussion in 'Trucks [ Eighteen Wheelers ]' started by Dorsey, Jun 26, 2014.

Page 3 of 3
  1. Feb 3, 2022 #21
    lester

    lester Midwest's #1 Feed Hauler

    2,920
    7,890
    Jan 2, 2012
    NW, Iowa
    0
    No egr cooler on a cat.
     
    lester, Feb 3, 2022
    lester, Feb 3, 2022
    #21
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  3. Feb 3, 2022 #22
    kranky1

    kranky1 Road Train Member

    2,253
    8,854
    Sep 16, 2015
    Ontario, Canada
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    7A87480. Call it what you will. I’ve heard Cat mechanics call it an EGR cooler. That’s not what it is or what it does, and it’s not really even the issue. The coolant diverter valve associated with it is what I suspect part of of his cooling system issues to be rooted in.
     
    kranky1, Feb 3, 2022
    kranky1, Feb 3, 2022
    #22
  4. Feb 3, 2022 #23
    lester

    lester Midwest's #1 Feed Hauler

    2,920
    7,890
    Jan 2, 2012
    NW, Iowa
    0
    I'm not 100% sure about the acerts but the earlier C-15s had 2 water Temps sensors. One for ecm and one for dash gauge. Verify both are reading correctly.
     
    lester, Feb 3, 2022
    lester, Feb 3, 2022
    #23
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