GMC transmission problem

[Terry]

My 2000 Sierra just started having a problem with a server jump from
1st to 2nd gear.
When starting from a dead stop and my automatic goes from 1st to 2nd
on take-off, I get a very bad jumping jerk of the truck.
All other gears are good.

To get around the problem I began starting off in 2nd gear from a dead
stop.

Any help is appreciated.
Terry in Texas

[Meat Plow]

> "Terry" <terry75115**********m> wrote in message
> news:86b6d33f-cf74-4b77-985c-1221c5ee27da@2g2000hsn.************.com...
>> Any help is appreciated.
>> Terry in Texas
>
> Have you tried adding a small amount of brake fluid to the transmission
> fluid? It will smooth out rough automatic shifting.

Personally I prefer buttermilk.

[Arnie Quarry]

"Terry" <terry75115**********m> wrote in message
news:86b6d33f-cf74-4b77-985c-1221c5ee27da@2g2000hsn.************.com...
> Any help is appreciated.
> Terry in Texas

Have you tried adding a small amount of brake fluid to the transmission
fluid? It will smooth out rough automatic shifting.