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Overheating

Discussion in 'Cherokee' started by TaeeWhite, Oct 22, 2019.

  1. Oct 22, 2019 at 8:48 PM
    #1
    TaeeWhite

    TaeeWhite [OP] Member

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    Davonte
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    Soon to replace the transfer case
    My vehicle is now over heating. And as well as my relay switch for my radiator fan doesn’t go on it’s own. I have to jump it with cables. Does anyone have this same problem?
     
  2. Oct 23, 2019 at 4:25 AM
    #2
    Awrench

    Awrench Well-Known Member

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    this is a 2008 wk with what engine?

    First thing I would do is check for codes, and check fuses - once we know engine and question of codes we can offer specific advise.
     
    TaeeWhite [OP] likes this.
  3. Oct 23, 2019 at 7:18 PM
    #3
    Jim Beam

    Jim Beam Well-Known Member

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    Items that can cause overheating are a bad thermostat, fan clutch, and not getting the cooling system maintained.
     
  4. Oct 23, 2019 at 7:33 PM
    #4
    aggrex

    aggrex Well-Known Member

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    DE
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    Since the electric fans are not activated inspect/replace the relay switch, temp sensors, check for voltage. I'll assume when the fans are jumpered there is no over heating, right?
     
  5. Oct 24, 2019 at 5:22 AM
    #5
    TaeeWhite

    TaeeWhite [OP] Member

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    2008 Jeep Grand Cherokee Laredo
    Soon to replace the transfer case
    It’s an 4.7L
     
  6. Oct 24, 2019 at 5:22 AM
    #6
    TaeeWhite

    TaeeWhite [OP] Member

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    Soon to replace the transfer case
    Nah believe it or not it still over heats
     
  7. Oct 24, 2019 at 5:38 AM
    #7
    Awrench

    Awrench Well-Known Member

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    do you have 2 fans? hyd and elec? Again post all codes as the PCM is involved in fan control.

    Anyway you claim fan forced on and a overheat still - I would confirm fluid level, how did coolant look any evidence of oil in coolant? Look in radiator NOT coolant bottle for inspection.

    Then 1st suspect would be thermostat.
     
    aggrex likes this.
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