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Sounds like you didn't get the torque convertor all the way back into the transmissions gears. Was the flex plate (flywheel) tight against the torque convertor when you bolted it up ? There should have a been a space between the convertor and the flex plate. I made that mistake once and ruined a nearly new transmission.
If the check engine light came on and the code was torque convertor they did not do you any favor,The torque convertor is the heart of the transmission,the cost as for part is twice your monthly payment.The torque convertor as for honda claims their recommended transmission fluid is not being used and causing torque convertor problem,Recheck the code get the number.
Hard upshift, This is cause by one factor low transmission pressure this can come from internal leaks at valve body leak or even a internal leak at the torque convertor,or a transmission pump that cant feed the torque convertor properly
well if the check engine light didnt come on that mean theres no electric probelms --check all u- joints , if ****** doesnt shift hard or no whinning sound when u use clutch try that first, only thing let is torque convertor
Most times when you hear a whinning from the transmission it is the torque convertor starting to fail. It is possible for it to be a front pump going bad but that is usually accompanied by leaking transmission fluid between the engine and transmission.
Its under the transmission oil pan on the inside of it code P0420 or close you should take it a trany shop let them service the transmissioni fix cars all the time and i wouldn;t try to do this my self you just need to much speicalized equipiment to diagnose the cause of the problem No i take that code back P0420 is the twr cataytlic convertor torque convertor is TCC and there is half a dozen codes that may apply
You have to remove the transmission from the vehicle, then unbolt the torque convertor from the flex plate. Once you remove the transmission you will see the torque convertor still bolted to the engine.(BIG ROUND THING)
this is most likely the torque convertor clutch(tcc). take it to a trusted transmission shop in area and replace the torque convertor. sorry i dont have better news. happy holidays
PO740 is a TCC/lockup code.TCC stands for Torque Convertor Clutch.In between the engine and transmission is a torque convertor.Inside the torque convertor is a clutch.This clutch engages to eliminate slippage inside the torque convertor.When a malfunction occurs in the system,which is activated by solenoids,and a computer,a TCC code will set.There is a diagnostic route specifically for that code,to determine if the malfunction is electrical,mechanical,or hydraulic.
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