transmission issues 1st/2nd gear shifting issues 48re

[everittak]

Folks, I'm having several issues that may or may not be related with my transmission. I bought the truck with 30k on it, and it now has 36k. transmission fluid is in very good shape with no smell to allude to misuse and the fluid is exactly at the full/max/hatch line.



The truck is starting to surge in first gear - it's slight, but moving through my neighborhood slowly (~15mph, ~1200-1500rpm). Then when shifting from 1st > 2nd, especially while turning a corner, the shift is delayed. Further, traveling up hill with light accelerator pressure, the truck can't seem to pick a gear and stay there. All of these issues are fixed with more throttle, but somethings not right...



Is there a throttle position sensor that I can check, or am I heading in the wrong direction?

 

[AWeiman]

this thread may shed some light on your situation.

https://www.turbodieselregister.com...ons-2003-2007/220305-48-re-1-2-gear-hunt.html

 

[everittak]

Thanks for the link. I searched, but sometime you don't quite know what to search for.

 

[AWeiman]

i know what you mean. took me about 5 minutes to find the link, but i knew there had been a lengthy thread about the gear hunting. i hope it helps.

 

[everittak]

It surely did. At least I have a direction or some semblance of knowledge when I go see our transmission guy. I think my surging once it find a gear is a different issue though. Thanks again for the help.