Peirson S
Member
hello all. I’m hoping someone can help me out here.
Beginning of this week my 2005 expedition 3v 5.4l, transmission began to prematurely lockup in 2nd and 3rd gear. Great. Took it to my local tranny shop (aaction transmission) and they diagnosed it and said it needs to be rebuilt, $1690. I got the work done picked up the same day, we’ll the same night I’m driving on the highway and now In 4th gear at 60-70mph I get a slight studder, and my acceleration gives out for a couple seconds. I have to let off the throttle and reapply and it evens out. It doesn’t do it every time either it’s very random. I was having this issue before the rebuild also. Also I now have a engine code for a p0430 (cat below threshold bank 2) if someone can give me some kind of insight it would be appreciated. Thank you.
Just to add I just replaced all plugs and coils before the transmission crapped out.
Beginning of this week my 2005 expedition 3v 5.4l, transmission began to prematurely lockup in 2nd and 3rd gear. Great. Took it to my local tranny shop (aaction transmission) and they diagnosed it and said it needs to be rebuilt, $1690. I got the work done picked up the same day, we’ll the same night I’m driving on the highway and now In 4th gear at 60-70mph I get a slight studder, and my acceleration gives out for a couple seconds. I have to let off the throttle and reapply and it evens out. It doesn’t do it every time either it’s very random. I was having this issue before the rebuild also. Also I now have a engine code for a p0430 (cat below threshold bank 2) if someone can give me some kind of insight it would be appreciated. Thank you.
Just to add I just replaced all plugs and coils before the transmission crapped out.