Transmission will not shift above 3rd.

[KungfuWerewolf]

I am at a loss for what to do with this POS truck at this point. I have owned it all of 10 months, bought it with 34k on it, it now has 40,850 on it, and the problems have been unlimited.

 

This morning I get off the freeway at work cruise up to stop light and stop... attempt to accelerate from light shits to 2nd with a massive clunk, almost like i hit a dog or something, then CEL comes on get to about 20-25 mph and rpms start to climb 2500 to 3k and truck will not shift higher at this point.

 

So far in 10 months this truck has had the Following -

Entire engine replaced

5 fuel injectors

 

and now possible trans problem... god this thing is horrible.

 

**Edit its the 8 Speed Trans**

 

*Update*

Just drove it around for a bit after cooling off for a few hours and it shifts fine now. Maybe trans getting too hot?

[davester]

maybe check that the fluid level is correct?  maybe watch the trans fluid temp while driving and see if it is actually overheating?

[KungfuWerewolf]

5 hours ago, davester said:

maybe check that the fluid level is correct?  maybe watch the trans fluid temp while driving and see if it is actually overheating?

Fluid level seemed fine and drove back the 20 miles to dealer on freeway at 65 average and trans fluid temp highest was 118F