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Problem with Transmission???

1490 Views 9 Replies 6 Participants Last post by  jrussell
2012 Pro-4x / 97k: had to stop on a decent uphill slope. When the light turned green I gave her gas and she wouldn’t move. I could feel the truck try to move but it was like something was locked up. Did it again a couple minutes later on the same hill, same scenario. Is the tranny on its way out? What should I check? All oils were replaced only 7k ago
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Thanks for the humbling moment. I checked it with the engine off and it was way high. Then checked again with the engine running and it is low. Guess this is a check done with the engine running.
Are you sure its not the hill assist? The brakes will hold you on a hill to keep you from rolling back until enough acceleration is applied then it releases. Mine is not always consistent, sometimes it holds it harder than others.
It could be, I don’t know what “activates” to keep the vehicle from rolling back. After topping off the oil, I tried to replicate it but it acted fine
Did a complete fluid change with Valvoline MaxLife ATF. Took almost all of the 1gal container.

There is a dip stick already in the tube.
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