so my jeep, the one with 366,000 miles on it is having some transmission problems. i changed the transmission fluid and filter and accidentally put about a quart to much of fluid in it when filling it back up... not knowing this i drove it to work. it worked fine but when on the way home it started to down shift really fast and then return. the shifting got weird and i had to limp home at 25mph... i drained the fluid and that helped but its still there. can any one help?

 

bump

 

anyone?

 

Probably built to much pressure up inside the trans blew some stuff up.
Too much fluid has to go somewhere. Do you hear any knocks or grinds? Or just erratic shifting.

 

just erratic shifting. and only some times... if i just run to the store it wont do it. if i go ALL the way into town it will. only on long drives and only with consistent speed on like a free way or strait stretch of road im going to try to let some more out this weekend

IF ANY ONE HAS ANY IDEAS LET ME KNOW PLEAS

 

Maybe you tcu is acting up, I've put in too much fluid a few times in other cars and never had a problem. If this was the fist time you have ever changed the transmission fluid I could see that doing this.

 

what is a tcu and haw do i fix that?

 

A tcu is a transmission control unit.
Pretty much the transmission computer, which controls shifting.
But that doesn't cover the fact you still have a knock.
Do you have an auto or manual?
If you have a manual trans typically overfilling wont hurt it.
In an auto trans though when you over fill the fluid you may bust some seals up.
I do not think that what your experiencing has anything to do with you overfilling it.
just coincedence.
but since you do indeed hear knocks then my advice would be to drop the trans and find out whats going on.
Knocking is usually from something being broken inside the trans.
My guess is it sounds like you need a new trans or rebuild it.

 

just put a new trans in with that miles its time for new one

 

i never said anything about knocking. and it only dos it on long consistent speed trips...

 

Oh yeah your right, sorry just mis read something