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Thread: Foamy looking tranny fluid

  1. #1
    Senior Member
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    Foamy looking tranny fluid

    I went out and checked my tranny fluid this morning while my rig was cold and it was really foamy looking. Is this normal ? Its a 95 auto jimmy. I find when driving on the highway and you speed up it revs up alot before it shifts. Not sure if this is normal or not. Also when you put it in overdrive it doesnt seem to work right almost like it surges a little. I've always been paranoid of blazers and jimmys cause of the trannys. Mayby its nothing.

  2. #2
    Senior Member silverhairdeere's Avatar
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    If it's not cherry red or it smells burnt change it and the filter
    SHD

    1989 GMC 1500 (PROJECT CHEAP TRUCK)

  3. #3
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    The fluid was still really red. I just never seen it foamy like that before. Wasnt burnt smelling or didnt seem gritty.

  4. #4
    Senior Member scavanger's Avatar
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    are you sure it isn't overfull. Was the foam white? if so you may have a cooler leak in the radiator.

    Scav.

  5. #5
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    Never had lag in shifting but did have the foaming when it was overfilled. Syphoned extra out of filler tube and was OK.

  6. #6
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    It was at the cold mark when i checked it. It didnt seem overfull. I'll check it today when i take it in town while its hot. I guess it was more bubbley then foamy. It wasnt really white. It only seems to rev up before it shifts ito forth. Not sure if that normal or not.

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