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Cab heat

Discussion in 'Volvo Forum' started by shim2000, Jan 25, 2021.

  1. Jan 25, 2021 #1
    shim2000

    shim2000 Bobtail Member

    24
    0
    Nov 30, 2013
    0
    Cab heat gets hot as I climb hills, goes cool down hill, flat road. Thermostat or??
     
    shim2000, Jan 25, 2021
    shim2000, Jan 25, 2021
    #1
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  3. Jan 25, 2021 #2
    ibcalm19

    ibcalm19 Road Train Member

    1,463
    2,435
    Nov 30, 2015
    Pennsylvania
    0
    The truck is running at a higher temperature as you climb the hills. You're heat control valve is more than likely not operating properly so letting more heat come through the vents. My guess anyway.
     
    ibcalm19, Jan 25, 2021
    ibcalm19, Jan 25, 2021
    #2
  4. Jan 26, 2021 #3
    nasriza

    nasriza Road Train Member

    2,407
    2,077
    Feb 1, 2013
    Chicago, IL
    0
    probably thermostat
     
    nasriza, Jan 26, 2021
    nasriza, Jan 26, 2021
    #3
    KB3MMX Thanks this.
  5. Jan 26, 2021 #4
    Farmtractor9900

    Farmtractor9900 Light Load Member

    162
    433
    Nov 6, 2020
    0
    Is the coolant level low?
    Check to see if coolant is coming out of the water pump weep hole.:dontknow:
     
    Farmtractor9900, Jan 26, 2021
    Farmtractor9900, Jan 26, 2021
    #4
  7. Jan 30, 2021 #5
    6cuda6

    6cuda6 Light Load Member

    259
    176
    Oct 9, 2020
    0
    Im with Nas here....probably thermostat.
     
    6cuda6, Jan 30, 2021
    6cuda6, Jan 30, 2021
    #5
  8. Jan 30, 2021 #7
    shim2000

    shim2000 Bobtail Member

    24
    0
    Nov 30, 2013
    0
    Supposably the shop looked at it I don't know if they changed the thermostat or not but they said the engine fan is continuously spinning, which is not allowing the engine to get up to normal temp and they can't figure it out so off to the dealer it goes!!
     
    shim2000, Jan 30, 2021
    shim2000, Jan 30, 2021
    #7
  9. Feb 6, 2021 #7
    86scotty

    86scotty Road Train Member

    4,700
    12,901
    Aug 27, 2017
    Appalachia
    0
    Update?
     
    86scotty, Feb 6, 2021
    86scotty, Feb 6, 2021
    #7
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