accidently posted this in general - I know more folks are likely to check it here - sorry for the dupe!

i was just accelerating onto the highway in 1st and tried to shift at 4k - and the car started bucking like it was hitting the rev limiter

I scanned it and got a p0872 transmission fluid pressure sensor/switch c circuit low (history) (immature)

I have had some issues with the trans shifting wonky in the past - im wondering if its a sensor or the harness... where is this located, how hard is it to replace (if I should even replace it all all???) and is it expensive?

I want to get an idea asap so I can get my dealership to order the part and change it out this weekend.

Thanks!






EDIT:

PM'd a well respected forum member on the subject - apparently this will come and go as the car wears. The solution is to clear the codes and clean out the trans fluid. I will be dropping the pan and putting a new filter to alleviate any possibility of this coming back sometime soon...

Took the car for a drive earlier and let it rip to 6000+ before shifting and didnt have any issues. I guess as stout as the 6l80 is it can have minor issues just as any other auto

notes - the filter to use is a duralast tf501 which is the same as the delco factory
fluid 6.5l dexron