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  1. Z

    4L60e slips when hot.

    I am not doing the install, the shop i hired says they will check the pan and do a hot flush as well as a additive called lube gaurd anti shutter.
  2. Z

    4L60e slips when hot.

    Thanks guys, i'm having a used with 109k installed next week. Crossing my fingers and toes. Not spending 2,500-3,000 for a rebuilt. Can't. And recommendations on the used install? Flush don't flush? just fill with a new filter? I.d.k
  3. Z

    4L60e slips when hot.

    Slips while in 3rd. Once it warms up.and no rev. Once hot too. But cold works fine. Don't know how long since i have'nt tried it on the road yet. But if i sit for awhile it will get me back just slowly...15-20 mph.
  4. Z

    4L60e slips when hot.

    I have a 97 gmc suburban 5.7L. W/the 4L60e trans. The other day noticed harder shifts into 2nd. Then a day or so later it started acting like it was a misfire with slip and no rev. got it back to a parking lot checked fluid was old but full. No leaks. It sat for a day i get in and rev...
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