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Over heating

Discussion in 'Grand Cherokee' started by ZJ baffled, Jul 3, 2023.

  1. Jul 3, 2023 at 11:59 AM
    #1
    ZJ baffled

    #1
    ZJ baffled [OP] New Member

    Joined:
    Jul 3, 2023
    Member:
    #7918
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    Male
    First Name:
    Geo
    Vehicle:
    97 zj
    3” life, different transfer case
    I’m at a loss on what to do next with my ZJ over heating issue, I have the 5.2 V8, I have a new thermostat, new fan clutch, a new 3 row radiator, fairly new motor, 25,000 miles on it and still have over heating issues, also a new heater core if that makes a difference,and when it starts to overheat the oil pressure drops quickly according to the gauge, if I put it in park or neutral it goes right back up, very strange
     
    ZJ baffled, Jul 3, 2023
    #1
  2. Jul 4, 2023 at 1:00 AM
    #2
    shooter65

    #2
    shooter65 Well-Known Member

    Joined:
    Jun 19, 2023
    Member:
    #7893
    Messages:
    95
    Gender:
    Male
    Southwest PA
    Vehicle:
    2023 Rubicon 4 Door
    This is a WAG but if your oil pressure is dropping, your overheating may not have anything to do with coolant but it could be you oil pick up in the oil pan. If oil isn't circulating in the engine, that will cause the engine to overheat also.
     
    shooter65, Jul 4, 2023
    #2
  3. Jul 4, 2023 at 8:28 PM
    #3
    aggrex

    #3
    aggrex Well-Known Member

    Joined:
    Sep 12, 2016
    Member:
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    4,912
    DE
    Vehicle:
    Backcountry '16
    Tuffy>AEV>TTO>JW>STech>EVOcage>MagnaFlow>SpiderTrax>RockHard>TF>SpringTail>67design>Bolt>GPCA>Curt>
    Just some ideas: defective thermostat or installed inverted position, collapsed hoses, or water pump
     
    aggrex, Jul 4, 2023
    #3
  4. Jul 5, 2023 at 10:08 AM
    #4
    ZJ baffled

    #4
    ZJ baffled [OP] New Member

    Joined:
    Jul 3, 2023
    Member:
    #7918
    Messages:
    2
    Gender:
    Male
    First Name:
    Geo
    Vehicle:
    97 zj
    3” life, different transfer case
    Thanks for your replies, I’ll keep those ideas in mind
     
    ZJ baffled, Jul 5, 2023
    #4
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