Transmission slips after 10 miles

2000 ISUZU TROOPER
121,000 MILES
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STEVE KIGER
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  • 3 POSTS
Transmission works fine until the car has run ten to twenty miles; after that the transmission begins to slip going from one gear to the next.
Oct 7, 2011 at 11:26 PM
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RIVERMIKERAT
  • ✓ASE Certified Mechanic
  • 6,110 POSTS
  • ASE Certified Mechanic
When was the last time you checked the fluid level or changed the fluid and filter?
Oct 7, 2011 at 11:58 PM
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STEVE KIGER
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  • 3 POSTS
I checked fluid this last monday. I need to check electrical wires; (TCM)and(ECM)along with plugged filter,etc.
Oct 8, 2011 at 12:23 AM
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STEVE KIGER
  • MEMBER
  • 3 POSTS
rivermiketrat: I have not changed the transmission fluid or filter; should I use an additive to the fluid(Dextron 3)?
Oct 8, 2011 at 12:30 AM
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RIVERMIKERAT
  • ✓ASE Certified Mechanic
  • 6,110 POSTS
  • ASE Certified Mechanic
No. Not really. Just have it flushed and change the filter.
Oct 8, 2011 at 12:54 AM
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