Sudden transmission slippage in all gears?

Tiny
RON MAGEL
  • MEMBER
  • 2002 ISUZU TROOPER
  • 3.5L
  • V6
  • 4WD
  • AUTOMATIC
  • 120,000 MILES
After about 8mi of driving from a cold start, the transmission will start abruptly slipping in all gears, even in low range 4wheel dr. I changed the oil about 4,000 miles back with highi mileage type. What is the problem?
Saturday, December 30th, 2023 AT 5:43 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,313 POSTS
The first thing we should do is check the fluid level, and if it's okay change out the fluid filter if you have not done it in the transmission fluid service. Here is a generic guide to help you step by step with instructions in the diagrams below to show you how on your car:

https://www.2carpros.com/articles/how-to-check-and-add-transmission-fluid

Please check to see if the fluid is burnt and look for metal in the pan as well. Check out the images (below). Please upload pictures or videos of the problem so we can see what's going on.
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Sunday, December 31st, 2023 AT 2:37 PM

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