transmission problems

pysco · #1 07-03-2005, 06:01 PM

any body know what's wrong.i have a 2002 gagt and today when i pulled out to pass another car i floored my gt and all that happened was it picked up a little speed and the rpms just went up to about 5500 and she would'nt change gears.tried it later on just slowly accelerated she would only hit 80 mph the tranny is just not changing gears.any ideal.

GTP Dad · #2 07-03-2005, 07:45 PM

Check the fluid to make sure it is not too low. If it is low it will act like this but I would venture a guess that you are looking at a new transmission.

grfnkl · #3 07-03-2005, 08:35 PM

have you had any other problems pryor to this, with acceleration or the car feeling like it has no power/holding back? It could be tranny related... but when i had this same problem it was the Catalytic Converter, it was clogged...So there's something else for you to look into.

FYI: if you didn't know there is no dipstick for the Trans, so you would be better off bringing it in and having it checked...if you suspect low fluid.

pysco · #4 07-03-2005, 08:56 PM

no never had a problem with it before,just seems like its not kicking into over drive,don't know if the car has electronic overdrive,or some other electronic tranny parts.don't think the tranny is slipping.

grfnkl · #5 07-03-2005, 09:15 PM

Oh ok, I have that same problem at times. It still could be a variety of things. From what I've been told, it could be that the trans is not building enough pressure to change gears, one of the pressure valves, it could be something a little more simple as a reflashing of the PCM.

pysco · #6 07-03-2005, 09:23 PM

this pressure valve your talking about,when i push on her,for a moment there is a whistle that comes in the car it sounds like a belt squeaking.

pysco · #7 07-04-2005, 05:29 PM

the pressure valve is that hard to change and what year and mileage was the grand am with the clogged converter

pysco · #8 07-06-2005, 06:41 PM

bump

grfnkl · #9 07-07-2005, 04:28 PM

mine was a 2002 with 35,000 miles when the clog was discovered. As fas as doing work on the trans, I wouldn't suggest it unless you are experienced

pysco · #10 07-07-2005, 06:00 PM

took it to a dealer today checked the back pressure on the engine and guess what the dam converter is clogged,a new one should be there tomorow hopefully thats the problem.

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