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Very strange grinding sound

Discussion in '3rd Gen 4Runners (1996-2002)' started by 4run4ever, Jul 28, 2021.

  1. Jul 28, 2021 at 3:38 PM
    #1
    4run4ever

    #1
    4run4ever [OP] New Member

    Joined:
    Jul 28, 2021
    Member:
    #22570
    Messages:
    1
    Gender:
    Male
    Hello all I have a 1998 4 runner automatic with 250k miles on it.

    After the engine is warm I can hear a grinding/clicking sound coming from behind me when idling in drive. The sound is intermittent but when I am idling on a hill it can become very loud and constant. If I take it out of drive and go into Park or Neutral then it goes away.


    Another strange way that I can make the sound happen happen is if I am in drive, foot on the break and put any window up past the stopping point with a hot engine. The engine sounds like it slightly looses power with the window switch held.

    I put my head under while my fiance did the window trick and only she could hear the noise.

    Could my battery from 2019 be dying? What other components interact when putting the window up in drive?

    Thank you for any help or suggestions to try
     
    4run4ever, Jul 28, 2021
    #1
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