Question about 2001 Kia Optima
The car runs really great. but whenever i get into 4th gear or drive on the highway, the car gets really bad gas mileage. so im thinking its the overdrive. now im honestly not 100% sure it even has overdrive, but this car was pretty decked out compared to other cars in 01- power everything, with an automatic six-banger in a sedan. I work at autozone, and i cant find anything on the overdrive. wondering if anybody knows where the relay is to check, or if it even has it or not. thanks!
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Posted on Jan 02, 2017
I would have them check the Sensor that is located on top of the transmission, I had a similar problem back when I bought mine. And I was told that the sensor was Bad, and there was a recall on it and it is a common problem. Because of where the Sensor is located it is a pain to get to, they have to drop the transmission. So for me anyways instead of just dropping the transmission to swap out the sensor, the Kia dealership that we bought the car from Replaced the whole Transmission/Sensor with a brand new Tranny. I have over 160,000 miles on the Car now and I have had no problems since.
Posted on Sep 03, 2008
UPDATE! ! ! Fixed this problem! YES ! ! ! The speed sensors was all that needed replacing. NOT ANY SOLENOIDS ! !. Two of them cost $160 and it solved the problem! Do not buy from the dealers. An after market version is available for $50 each. I was forced to buy dealers.
Posted on Apr 04, 2009
My 2001 Kia Optima had a very similar problem last month (Dec 09). At first everybody was saying it's the alternator. I almost spent the $250. on a new one, but I did some troubleshooting and It turns out the positive battery cable had failed. It was corroded and no longer conducting electricity. It is only sold as a harness, and had quite a few places where it bolts to the fusebox, frame, block, starter, and alternator. I paid $104. on the internet for the part, and $90. to have my local dealer install it, since it is very involved. Good luck
Posted on Jan 30, 2010
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