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  1. #1

    Unhappy 93 silverado 350

    my trans slips going into high or overdrive. will a fluid and filter change help this problem.

  2. #2
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    murdog94's Avatar
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    There is a chance it will help some but there is a good chance that you have internal damage already if it is slipping in those gears.
    Mike

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  3. #3
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    Hate to say it, but that is what mine started doing before the tranny puked. The filter flush might fix it or finish it. Sometimes servicing an outgoing tranny is the last nail in the coffin.
    1992 GMC C1500 SLE

  4. #4
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    It could help it IF the filter is plugged up from crud that is restricting the fluid flow & reducing pressure, or IF the filter tube is not sealed & is sucking air. Have you checked your trans fluid level? Low fluid level that allows the pump to suck air will also cause this.
    1988 Chevy C-3500 2wd (no pic)
    350 c.i. 5.7 L Stock Block, 4 Bolt Mains
    L-31 Vortec Heads, Edelbrock Cam & Intake,
    Holley 650, Flowtech Headers, Magnaflow exh.
    Jet Trans 700R4, B&M Ratchet, 4:10 gears,
    3" susp. lift kit "shadetree"
    No rev limiter, No speed limiter lol


  5. #5

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    what does your fluid look like? If it's not nice clean red, and has a grayish tint to it, don't change your fluid unless you're prepared to change your trans. If you do so, you'll lose what you have faster. Old trans guy always told me once it gets to that point it's pretty much rebuild or replace, and if you change the fluid you lose those bits of friction material already in there that are helping grab.

    Now if fluid's clean red, then a flush could possibly help you.
    1986 Chevy G20 Tow Rig - 5.7 TBI conversion
    1978 Mustang II King Cobra Road Racer - Holley 650, MSD 6AL, 5 speed, 10 point Roll Cage, 9" posi, fuel cell, custom interior.

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