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Transmission sensor problems on a 2004 Kia Optima will cause incorrect shifting, poor performance, and hesitation. Sensor failure can be narrowed down by connecting an OBDII code reader to the vehicle's computer.
The transmission shifting is late because the kick-down cable needs to be adjusted. The kick-down cable is usually found on the throttle lever with the throttle cable.
No,it does not do any damage to the engine or the drive-train of the vehicle with an automatic transmission
Bad Throttle Position Sensor
synchonizer worn in transmission
Possible low on fluid and also need to reprogram transmission after fluid went down. It could have reset itself .
An automatic transmission is better than a manual transmission for city driving. It cuts down on the fatigue of constant shifting and reduces rollback.
I found out that it was actually the TPS, throttle position sensor. replaced it, problem solved.
It could be that the transmission fluid is low, or it could be that mechanical parts have worn down. If so, it may be time for a replacement.
I had a problem shifting my suburban out of park. It ended up being the brake switch, it tells the transmission that you are pushing down the brake.
i do know there is some sort of electric sensor in the transmission that is suppose to make it down shift when going down steep hills. but if yours is just shifting crazy like mine was, take it to a shop and/or start looking into a new transmission or even better yet a new car. your trans is going to drop!would check the shift module have seen speed censor cause some similar symptoms
Are you sure it is the transmission that is clunking? It could be the u-joints on the drive shaft that are making the noise. When the u-joints on the drive shaft are bad, there is an audble clunk when you accelerate and when slowing down (basically the same motions you go through when shifting gears).