Auto Answers » Transmissions & Drivetrains » Kia

Kia transmissions & drivetrains repair questions and answers

Post your Kia transmissions & drivetrains question or share what you know by answering questions

Browse Kia Categories

261 Questions
Sort by:
  • ed
    ed - 2000 Kia Sephia - Transmissions & Drivetrains - 5/24/2015
    I get a light saying O/D off what is this
    speedometernot working how to fix this
    0 answer
  • btppn53
    btppn53 - 2000 Kia Sportage - Transmissions & Drivetrains - 5/5/2015
    It takes a while to shift into overdrive and sometimes I hear a whine until it sifts. Once it shifts it seems to be fine
    94178 miles automatic, happens when cold works fine after driven about 5 miles.
    0 answer
  • shawna
    shawna - 2007 Kia Spectra5 - Transmissions & Drivetrains - 4/13/2015
    My car is overheating & leaking transmission fluid any idea what's going on?
    It over heats when I am drivin. It has happened everytime I have drove it recently, my check engine light has been on, it is leaking slot of transmission fluid.
    • Jimm
      4/13/2015 Jimm
      Loss of coolant because of a coolant leak is probably the most common cause of engine overheating. Possible leak points include hoses, the radiator, heater core, water pump, thermostat housing, head gasket, freeze plugs, automatic transmission oil cooler, cylinder head(s) and block.

      Make a careful visual inspection of the entire cooling system, and then PRESSURE TEST the cooling system and radiator cap. A pressure test will reveal internal leaks such as seepage past the head gasket as well as cracks in the head or block. A good system should hold 12 to 15 psi for 15 minutes or more with no loss in pressure. If it leaks pressure, there is an internal coolant leak (most likely a bad head gasket but possibly also a cracked cylinder or engine block).

      It is important to pressure test the radiator cap, too, because a weak cap (or one with too low a pressure rating.

      1. Perform a cooling system / radiator pressure test when the engine is cold - as a first step to locate the leak.
      Obtain a loaner tool / free radiator pressure tester from the local auto parts stores such as Autozone, O'Reilly, NAPA, Advance Auto, or PepBoys. Follow their instructions and pump it to an adequate air pressure 12 -15 psi or the pressure rating listed on the radiator or reservoir cap. Observe the leaks and perform the repair.
      Note: do not over pressurize beyond the pressure allowed by the radiator cap, then test the radiator cap as well.

      2. Air pockets trapped in the cooling system can cause the engine to overheat. Some cooling systems have air bleed valves built into the system to aid in the removal of air pockets. Advice: For many cooling systems, the method of removing air pockets is to start the engine and allow it to run with the radiator cap off or loose until all the air escapes from the neck of the radiator. For some systems this method is not sufficient, and the manufacturer has installed air bleed valves usually near or on the thermostat housing.
  • needhelp1979
    needhelp1979 - 1999 Kia Sportage - Transmissions & Drivetrains - 2/28/2015
    Could a bad sensor be causing my RPMS to climb when the car is at park
    O2 sensor got replaced 2013, transmission 2015 And Kick Down Cable 2015, But The RPMS are still climbing when you are driving and when you are at park, you could be going 35-45 mph and the RPMS show show 3 almost 4. The mechanic told my mom to take it to autozone ...
    • Jimm
      2/28/2015 Jimm
      The check engine light is located on the dash and stays on if the computerized engine control system detects an engine performance or emissions problem.

      First step - have the stored fault codes or check engine light scanned - for free - at any local auto parts store; Advance Auto, Auto Zone, NAPA. Then, post a reply as 'add answer' with the specific code for more assistance. There may be a fault code stored in the OBD memory which may not be displayed as a check engine light.
      There are literally hundreds of possible codes - so this first step is important to begin any diagnosis.
  • selena
    selena - 2005 Kia Sorento - Transmissions & Drivetrains - 2/10/2015
    Why isn't my Kia sorento not driving in reverse anymore
    My Kia first started hesitating driving up hill.then it started leaking fluid a lot as fast as you put the fluid in and ran it for a little bit it would drain it would drain the most when the engine was turned off.the vehile runs fine other than that if anyone has ...
    0 answer
  • mnbartlett12
    mnbartlett12 - 2001 Kia Optima - Transmissions & Drivetrains - 12/24/2014
    Why won't my car go past 45 mph?
    The car has over 200000 mile but the transmission was worked on about 2 years ago, it wasn't mine at the time so I'm not sure what was done to it. I can get up to about 35-40 mph then the car starts jerking and I feel like I'm losing power, it almost feels like my ...
    • GT500Knights
      12/24/2014 GT500Knights
      Catalytic converter may be causing excessive exhaust back pressure. The engine is a big air pump. What goes in must come out. If not enough exhaust can escape then not enough air can enter engine for proper operation. This tends to happen with higher speeds--more wind and tire resistance, also low gear ratio so less torque reaches the road. Have a exhaust back pressure test performed.

      I have also seen this problem with some vw's, where the camshaft sensor was bad.

      In either case, pull engine codes and have live date checked.
  • frank
    frank - 2011 Kia Forte - Transmissions & Drivetrains - 12/21/2014
    Transmission acting up
    98000 miles auto trans shift pops out of gear have to toggle shift...
    • Teddy B
      12/21/2014 Teddy B
      If you never changed the trans fluid every two years or are
      one of the unlucky ones--then the trans is done

      Time to pull it & install a reman

      With those kind of miles in four years you may want to
      not drive a transaxle --- go to a rear drive trans
  • Bigfoot
    Bigfoot - 1997 Kia Sportage - Transmissions & Drivetrains - 12/14/2014
    Would the speed control sensor cause it to idol rough and shift rough?
    It has 161,000 miles. It starts up ok and idols, but it is when I put it in gear is when it runs rough. Starting out it shifts ok until I get speed then it does not want to shift until I let off the gas and it shifts. but the whole time it is in gear it runs rough. ...
    • Teddy B
      12/14/2014 Teddy B
      No on the sensor or trans filter

      You have to work on getting the engine running properly
      or it won't shift correctly

      That said you could still have a trans issue

      You have two things pointing you somewhere
      It runs rough all the time it is in gear
      Won't shift until you let up on gas or unload the motor
  • Chris
    Chris - 2004 Kia Optima - Transmissions & Drivetrains - 11/29/2014
    Why is my trans. not going into D when it seems its an electrical issue?
    Im getting an error code that my Trans. range sensor is bad or low volts. i replaced the sensor with no luck. I ended up pulling a 15 amp fuse which controls my rear defrost. This worked! for 2 mos. anyways. I could put it in drive with no issues until last night, ...
    0 answer
  • Midori Bolduc
    Midori Bolduc - 2012 Kia Soul - Transmissions & Drivetrains - 11/23/2014
    My car won't shift out of park and the dashboard lights and gauges don't work but the engine turns over fine.
    The engine turns on and all other lights/radio turn on but ti won't shift out of park and all the dashboard gauges won't budge and are not lit up. The car was in a minor accident and dented the front right side by the front right tire well, however the problem ...
    0 answer
  • Daniel
    Daniel - 2005 Kia Optima - Transmissions & Drivetrains - 11/14/2014
    My shifter button is stuck in the "down" position
    The button on my shifter is stuck in the down position. I can still switch into all positions, but, my keys will not come out of the ignition. How can I get the button to disengage?
    0 answer
  • Richard
    Richard - 2007 Kia Sportage - Transmissions & Drivetrains - 9/10/2014
    Automatic Diesel, what causes failure in revs on D & R & thick black smoke from exhaust?
    Has been serviced, Transmission oil changed & filled with dealer recommended. 163 982Km no check engine light' cold or hot it straggling to pick on low gears either o level ground or on a steep hill.
    0 answer
  • AutoMD Member
    AutoMD Member - 2013 Kia Optima - Transmissions & Drivetrains - 8/6/2014
    I accidently put my 2013 Kia Optima in Reverse, while I was driving in low speeds below 50mph. Did it take damage?
    I stopped, and pulled over to test out the gears. D, N, R, & P all function well still. I popped the hood to see if there is any burning smell. I didnt smell nothing and the. car still functions well. My car only has 14,950 miles since I got it off the dealer.. im ...
    • CTB1053
      8/6/2014 CTB1053
      With that new of a car the computer should not have allowed the transmission to engage in reverse gear if the car was moving forward. There are safeguards built in to protect the car from that happening.
  • AutoMD Member
    AutoMD Member - 2013 Kia Optima - Transmissions & Drivetrains - 8/4/2014
    I accidently put my 2013 Kia Optima in Reverse, while I was driving in low speeds below 50mph. Did it take damage?
    I stopped, and pulled over to test out the gears. D, N, R, & P all function well still. I popped the hood to see if there is any burning smell. I didnt smell nothing and the. car still functions well. My car only has 14,950 miles since I got it off the dealer.. im ...
    • Chevy doctor
      8/4/2014 Chevy doctor
      Did it make any kind of weird noises when it happened..
      Chevy doctor
      8/4/2014 AutoMD Member
      No, no wierd noise. I just got back from a small trip to da store, and the car was functioning well...
    • Chevy doctor
      8/4/2014 Chevy doctor
      Most newer transmissions have a override protection inside so you don't do damage or grenade transmission. Wouldn't worry if there were no unusual noises that occurred when you accidently selected wrong gear.
      Chevy doctor
      8/4/2014 AutoMD Member
      Thanks for the help
  • AutoMD Member
    AutoMD Member - 2010 Kia Forte - Transmissions & Drivetrains - 7/12/2014
    My car wont go faster than 5 mph, when I step on the gas there is no acceleration
    engine light is on transmission oil has never been changed
    • FloridaTech
      7/12/2014 FloridaTech
      See what the code is for. It is possible that the accelerator pedal position sensor located in the accelerator pedal assembly could have gone bad. Report back with codes and mileage.