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07-29-2008
For starters I had my tranny replaced back about a year ago by a tranny shop in Ft. Wayne IN Summitt Transmission. Now i am having an issuse when car shifts into 3rd it like pulsates you can feel it like pulling and then not pulling but it dose this relativaly smooth and also it will not shift into overdrive unless i am doing 50mph or over. I can run 45 mph for miles and it wont shift unless i have gone 50 mph prior to it. Any input would help.
08-06-2008
Almost sounds like a line pressure solenoid problem.
08-06-2008
Is that an easy fix or do you have to tear the tranny apart.
08-07-2008
Well if that is indeed the problem, then it's a pretty time involved and tedious fix. You will have to get the side cover off of the transmission to get to the valve body. I've done them inside the car before, but man it's a pain.
It should store/throw a code if it is what's causing that.
08-07-2008
OH ok ya i dont have a code or anything. It dose not do it all the time either just sometimes.
01-19-2009
I'm having the same problem, It wanders around before 4th. You have to go up to 50 or so to get it to shift. Doesn't seem like the tranny's slipping or anything through the gears, just can't make the commitment into fourth.
01-21-2009
What year/make/model is your car?
01-21-2009
Mine is a 2000 Grand Prix GTP.
01-22-2009
Im not quite sure how, with a 2000 GTP you ended up in the early 90's transmission section, but Ive moved this to the correct area.
01-23-2009
Oops, I guess I'm having a 90's problem. I was just wanting to know what would cause indecisive shifting from third to fourth, should be the same reason.
01-24-2009
Are you sure it is hunting between 3rd and 4th OR is your lockup clutch the causing the feeling? On my info page there is a section about rpm-bounce while cruising around 40mph. These transmissions are controlled by the pcm and the only way to really know what is going on is to have a scan tool hooked up and watch the data
01-26-2009
Thanks for the lead, you might have saved me a big headache!
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