2000 yukon TRANSMISSION issue????

[Daviddc114]

i have a 2000 yukon and in the morning when it is cold when shifting from 1st to 2nd it hesitates more than usualy, araound 3000 rpms and 35 - 40 mph it shifts, sometimes it bangs into gear sometimes it shifts smoothly. once the truck is warmed up it shifts perfectly normal again. Anyone?? :mad2:

 

[Getwired]

I'm assuming you've check the fluid color & level -- when was it last changed (i.e. how many miles)?

 

[Getwired]

Oh yeah -- welcome!

 

[Daviddc114]

i have 145k on it, i bought it at 118k and to my knowledge it has never been changed:nonod:

 

[jey_]

It might not be an issue at all - I think every GM vehicle I've driven since I was 16 has done that when it's cold.

 

[JKmotorsports]

Could just be the combination of old fluid and the fact that it's cold. I would change the fluid anyway just because of the mileage.

 

[chevyrider]

I have the same trouble, although i have high mileage (200,000 +) with original trans. so that will have an affect on it. but check your trans fluids along with the temps to make sure there in safe operating levels.