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transmission slipping

puffalot1977

New member
i have 98 grand prix gt. the other day i was going though a stoplite it turned yellow and i got on it . it down shifted and she took off like a rocket. at next stop lite we stopped and started off it started to go and than slipped real hard like popping out of gear. i let off gas and she caught and was fine. every time starting out now about 2 seconds after giveing it gas it does this it will be in gear and than its like it kicks out revs up than when u left off gas it catchs and it goes. it dont seem to be wanting to shift out of 2nd all the time. i put a bottle of lucas in it and drove it for awhile. it will spin the tires takeing off. u get on it with full throttle it will downshift and take off a bat out of hell.can anyone help me out with wats wrong???
 


Can you take another moment and help us with the symptoms. You said it start off with mild throttle, then slips, bangs into gear and seems ok. Other times it'll spin the tires...without slipping?
 
How many miles on it? Is your tranny fluid Brown in color?

The car has 140,000 but i believethis is the third transmission in it. Believe on this one has around 40,000. 23,000 miles ago i pulled it out and tore it down to channel plate and replaced the channelplate gasket. Everything else looked fine. Fluid is normal red and smells fine not burnt
 
Giving normal throttle takeing offabout 2 secondsinto motion the tranny slips engine revs up. U let ofc throttle rpms cum down and tranny catchs. U can b driving 30 mph and floor it she will downshift and take off like a rocket. . From a stop u puch it tires will spin than she slips and than wants to spin again. It dont seem to want to shift from second gear. I didnt drive long orfast when ut started doing it. I didnt fet it above 35 or 40. Didnt want to cause any m ore damage than wat is done.
 
Nothing against you, but that's painful to try and read.

Seems like you have some trans knowledge. Do you think it's the input apply piston seal?
 


Could possibly be the torque converter slipping. U said the tranny fluid looks fine so that could be my only idea.
 
i have no idea wat it can be . does any body??

Yes.. I kinda do. That's why I asked if you thought it seemed like the issue I suggested. Thought you might have some trans knowledge and instead of linking you to that common issue, I asked. Would you like a link to the common description of the issue I'm talking about? It's on the tripleedgeperformance.com site.
 
Yes.. I kinda do. That's why I asked if you thought it seemed like the issue I suggested. Thought you might have some trans knowledge and instead of linking you to that common issue, I asked. Would you like a link to the common description of the issue I'm talking about? It's on the tripleedgeperformance.com site.


thats pretty damn close to my symptoms. is there any tricks to replace that with out droping the tranny>>
 
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