need help 96 neon 2.0 sohc automatic

my rpm gauge shoots up to about 4 and a half and it wont go back down until i floor it and hoping there are no cops around well anyways it finally kicks down to where it needs to be and then as soon as i slow down a lil
bit it jerks and kicks back up making some kind of loud rivving noise the car lot where i bought it from took it for a ride and they said it was the catylic converter so they put a new one on since it was still under the thirty day warranty and then i was still having the problem took it back to them they put it back in the garage they told me it was some type of rod that goes into my transmission or something along them lines hey that worked for about a week just long enough for my warranty to expire that really sucks now i have no clue what could be going wrong thanks for your replies
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my rpm gauge shoots up to about 4 and a half and it wont go back down until i floor it and hoping there are no cops around well anyways it finally kicks down to where it needs to be and then as soon as i slow down a lil bit it jerks and kicks back up making some kind of loud rivving noise the car lot where i bought it from took it for a ride and they said it was the catylic converter so they put a new one on since it was still under the thirty day warranty and then i was still having the problem took it back to them they put it back in the garage they told me it was some type of rod that goes into my transmission or something along them lines hey that worked for about a week just long enough for my warranty to expire that really sucks now i have no clue what could be going wrong thanks for your replies
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mtate_mtate wrote: Need help 96 neon 2.0 sohc automatic

What color is the car... just kidding, but you don't say how many miles, how smooth the engine runs or what transmission you have and if you can hear the transmission shift? Does this problem happen when the car is cold? It sounds like the garage threw a couple of "possibles" at it and sent you on your way. However the garage is not free from their burden of fixing the problem for which you brought it back to them for, just because your 30 days has expired. As long as you have (proof) documents of this problem being brought to their attention under warranty. Be polite to them and they should work with you at this problem. If they want nothing to do with this problem anymore, you can bring the car to a more qualified shop and ask to be reimbursed, if they refuse, small claims court will be a simple answer (no lawyer needed). Back to your problem, its possible a faulty "TPS" /Throttle Position Sensor may due the trick, but it could be other things like the input or output speed sensor for the 41TE transaxle.--J
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