02 Tahoe trans issues

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On_3_Go

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Ok, today I was driving home from work and came to a light. As I pulled off from the light (normal takeoff) the trans seemed to jump around between gears really fast, took off like the parking brake was on, and then changed to the proper gear. After the next light and same thing happening, the truck lost the trans completely. No manual shifts worked or just in drive itself, only revved up. I pull over and hear what sounds like metal swirling/dragging around in the trans.

I turned the truck off right away. Sat for about 20 minutes contemplating what it could be, started the truck again, and put into drive. Truck moved forward as if the parking brake was on again. Had to take advantage of the truck being able to move, to put it in a safe area. Apon letting off the gas to come to a stop, the trans disengaged again and revved up while being in D,1,2,3 and reverse.

The metal swirling/dragging sound happens again. I haven't a clue what happened or what is not functioning properly. Any advice or input will be greatly appreciated.
Truck is a 02 Tahoe Z71 4x4
Mileage is around 162k
 

David Paul

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Trans is toast. Same thing happened to me. Time for a rebuild/remanufactured trans. If you have it rebuilt by a reputable shop, have them beef up the know weak points and add a vet servo......
 
OP
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O

On_3_Go

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I was thinking it could possibly be the converter after reading some more info with the symptoms. Have to wait to get the truck back home to tear the pan off and see if there's anything there.
 

retiredsparky

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If the torque convertor fails in that way, metal particles are already throughout the case. You will need a new or rebuilt tranny.
 

ccapehartusarmyINF.(ret)

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regardless at 162k on the tranny its not going to be to much longer before something else goes kaputt on that tranny i had to rebuid the 4l60e on my 02 tahoe at about 149k the seal for the the 3-4 apply pistion went bad on me wich caused the 3rd and 4th gear clutch packs to burn up so one day i was drivin along and 3rd and 4th gear just kinda disapeared
 

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