Question about 2000 Kia Sephia
Get diagnostics done and if you will get code P0741 - This trouble code is about damper clutch, which improves fuel economy by matching power transmission effectiveness of automatic transmission Damper clutch consists of control valve and solenoid valve which converts electric signal to hydraulic signal by the TCU signal. Corresponding code will be displayed under following conditions when damper clutch is operated form TCU lock-up output time. -when the difference between engine revolution and input shaft revolution has been below 160 RPM. Torque converter solenoid (TCU) is the last thing you should look at to replace, the cause of its failure might be in a different area like worn seals. Nevertheless it is a serious malfunction of a gearbox as further usage may end in a complete gearbox failure and the only solution you will be left with is to rebuild the gearbox or get a new one. Before you start buying parts you should closlely inspect the inner cover seals for uneven wear or possible damage, short cicuit will be caused by fluid passed onto electric connection,
Posted on Apr 29, 2010
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Posted on Jan 02, 2017
SOURCE: 94 dodge neon auto tranny
Here is some possible reasons why your transmission is having those problems .
* The gear shift linkage is binding
* There is an internal problem in the transmission
* The throttle cable is broken or disconnected
* The vacuum modulator on the transmission is faulty or the vacuum line is damaged
* The electronic transmission control circuit may be faulty
Posted on Feb 26, 2009
SOURCE: 1998 jetta auto transmission is
I had the same problem. The transmission would not upshift into 3rd or 4th and 2nd seemed to rev on forever. I replaced the ignition and coil wires as well as the distributor cap and rotor and that fixed the problem. There was obviously some defect in the wires and/or cap/rotor. Although i am not a mechanic, I would say that since the transmission is electronically controlled, due to the defect in the above parts, the voltages going to the cylinders and thus the rev voltage limit load was not being reached or seen by the computer and so was not allowing the upshift. Since this was an ignition problem, I would check the coil as well.
Posted on Jan 14, 2009
Typiclly this is caused by a failing Pressure Control Solenoid. Now in some cases, since you are in the 1996 model year you may have a vacuum modulator that controls the shift firmness that can be replaced as it is externally mounted. I dont know how best to describe what it looks like, but look down on your transmission, on the front side facing the radiator and if you see a canister like device that has a vacuum line running to it, that is the vacuum modulator and you could start by replacing that and see if it helps.
If you do not have the vacuum modulator and have instead the electronically controlled version of your transmission then you will have a Pressure Control Solenoid and it, unfortunately, is located on the inside of the transmission and cannot be easily replaced without dropping the whole transmission.
The pressure control solenoid is a common issue with your transmission (4T65) and Im leaning more towards you have the electronically controlled version (4T65E).
Posted on Feb 02, 2009
the overdrive button on your automatic transmission is for cruising on the highway basically like having another gear for better economy careful not to use it when your not on the highway because lugging the car in overdrive when its not needed will cause higher fuel consumption other than that you should have no problems just get out on the highway and push and away you go
Posted on May 31, 2009
If the fluid is up -
it could be a vacume loss or the shifting module..
The shifting module is what tells it to shift - and it is controled by vacume pressure..
Posted on Jul 08, 2009
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