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Transmission fluid change

Discussion in 'Cherokee' started by Jm157, Jul 26, 2020.

  1. Jul 26, 2020 at 7:16 AM
    #1
    Jm157

    Jm157 [OP] Member

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    My cherokee is at 174k approximately, it shifts fine runs good, the guy who had it before me said it was in his family most of it’s lifetime and he had been taking care of it, my question is should I trust that he had been doing transmission changes through it’s lifetime and I should trust to do it again or should I trust that changing it might ruin my transmission being so old, I’ve heard that when they get to high mileage changing the transmission fluid can lead to the transmission falling apart due to it being worn out or the guy didn’t take care of it
     
  2. Jul 26, 2020 at 7:34 AM
    #2
    aggrex

    aggrex Well-Known Member

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    Tuffy>AEV>TTO>JW>STech>EVOcage>MagnaFlow>SpiderTrax>RockHard>TF>SpringTail>67design>Bolt>GPCA>Curt>
    IMO a drain and fill should be beneficial as opposed to a flush. I would replace the filter too.
     
    LYFZGOOD likes this.
  3. Jul 26, 2020 at 7:52 AM
    #3
    Jm157

    Jm157 [OP] Member

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    My question is more if a should I do it, I just don’t know because I’ve heard it can reveal a problem with the transmission not there before
     
  4. Jul 26, 2020 at 9:21 AM
    #4
    aggrex

    aggrex Well-Known Member

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    Tuffy>AEV>TTO>JW>STech>EVOcage>MagnaFlow>SpiderTrax>RockHard>TF>SpringTail>67design>Bolt>GPCA>Curt>
    If the fluid is no longer bright ruby red and now burnt darker change it. Especially if it has not been done or no record of it being done. That’s my two cents.
     
    LYFZGOOD likes this.
  5. Jul 26, 2020 at 4:02 PM
    #5
    Jim Beam

    Jim Beam Well-Known Member

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    Fuel Injection, Dana 44s, T18, 4.10s w/lockers
    aggrex has it right. Although removing the pan can allow you to inspect the condition of the heavier stuff in the fluid though like looking for metal chips. I always like to install a magnet wherever I can like in the plugs for the diffs, oil pan. and transmission pan. Changing all the fluids allow you to make a new start and always record what you do. There is nothing wrong with keeping maintenance records.
     
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