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Slipping reverse - only when hot


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Posted

1998 Silverado Z71 with 106k. This truck has been slipping in reverse for quite some time and only when hot. No hard miles and the trans has always been serviced regularly. I am the sole owner. Reverse is not a problem when cold but when hot it clearly slips. Forward gears have no issues and the truck shifts smooth. Any thoughts? Thanks!

Posted

I had the same issue with a Camaro. There was a bad seal in the transmission. When the fluid was cold, it would not slip past the seal very badly, but when it was warm - the fluid was thinner and bypassed the seal more easily. (Or so I was told). 

 

I ripped the transmission out, threw it across the room - and installed another used transmission. 

 

If it were me, I would do add this stuff to the transmission, and drive it for 500 miles. If that didn't work, I would bypass the radiator and install a couple after market transmission coolers. Then start shopping around for a cheap transmission. 

 

 

 

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