Trucks a 99 24v with an auto. 95K miles.
when i'm going 65+ the truck likes to make a shift that causes it to jump about 300 rpms. feels kinda like the TC unlocks/relocks or soemthing.
is thati a sensor?, TC? or is my tranny shot?
Thanks
Josh

 

Had a symilar prob. was the brake sw. at pedle , just out of adjustment, hit a bump and would disingage TQ. I like to try simple/basic 1st.