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Kia engine repair questions and answers

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  • Jesus
    Jesus - 2006 Kia Rio - Engine - 10/8/2014
    Why does my car turn off when I step on he brakes, but only if the a/c is on?
    This has been happening for over 6 months now, but I don't know any reliable mechanics in my area. The car drives fine as long as it's in motion, even with the A/C on, but as soon as I come to a complete stop, it shuts off. It mostly happens if the a/c is on, but ...
     
    • shashikant bagadi
      10/8/2014 shashikant bagadi
      please check ac actuator
      shashikant bagadi
      10/8/2014 Jesus
      thank you so much for your reply, but, does this actuator go by another name?, I have searched the interned and can't find what that looks like, and I have no idea what it is.
  • AutoMD Member
    AutoMD Member - 1997 Kia Sportage - Engine - 9/22/2014
    Changed engines and now cranks but will not start what could be wrong
    getting fire but no fuel, checked all connections, good. timing is good. The radio is flashing the word CODE.
     
  • K Torry
    K Torry - 2006 Kia Sorento - Engine - 9/16/2014
    While driving on highway on a climb my Kia feels like it bucks. And sometimes it stalls on city streets. Help!
    We have replaced the fuel pump.
     
    • Jimm
      9/16/2014 Jimm
      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.

      Possible Causes of Engine Hesitation or Stumble:

      Dirty fuel injectors (cleaning the injectors often fixes this)
      Dirty air filter (change filter)
      Dirty / clogged fuel filter (change filter)
      Bad MAP (manifold absolute pressure) sensor
      Bad TPS (throttle position) sensor
      Bad or dirty MAF (mass airflow) sensor
      Low fuel pressure (leaky fuel pressure regulator or weak fuel pump)
      Vacuum leaks (intake manifold, vacuum hoses, throttle body, EGR valve)
      Bad gasoline (fuel contaminated with water or too much alcohol)

      Sometimes, what feels like a hesitation is actually ignition misfire rather than lean misfire. The causes of ignition misfire may include:

      Dirty or worn spark plugs
      Bad plug wires
      Weak ignition coil
      Wet plug wires
      Jimm
      9/17/2014 K Torry
      The code is P430.
  • Linear
    Linear - 2009 Kia Borrego - Engine - 9/13/2014
    Change spark plugs on the passenger side of engine.
    I need to remove the breather element that sets on top of the three spark plugs
     
    0 answer
  • Bill
    Bill - 2004 Kia Optima - Engine - 9/5/2014
    Problem with A/C. Works intermittently.
    Sometimes when I turn the A/C on it comes on and works fine. However, sometimes when I turn it on it doesn't seem to engage and does not cool. Usually if I turn in on and off a number of times, eventually it will engage and start to cool.
     
    • CVO
      9/5/2014 CVO
      Check the low side pressure, it needs at least 25 psi to trigger the low side cut off switch.

      Automotive A/C compressors have some protection devices installed. An example of these would be the high and low pressure cutoff switches. The operation of the devices is fairly straightforward. If the pressure is too high it will stop the compressor from turning on. This can protect from the overcharge situation mentioned above. The low pressure cutoff switch stops clutch engagement if the pressure is too low.
  • JacobSiedenberg
    JacobSiedenberg - 2001 Kia Sportage - Engine - 9/1/2014
    My car jerks forward when downshifting, and when going up a hill on the highway it drops to 40MPH.
    It only goes 60MpH when going downhill. Someone suggested transmission but mechanic said it was fine. Someone suggested Cat Converter but we took it off and drove it and it was still giving us the same problem
     
    0 answer
  • Danny
    Danny - 2004 Kia Optima - Engine - 8/30/2014
    When I start the car in neutral it reeves engine 2000 rpm then climbes to 4000 rpm repeats agin n agin
    When I put car into drive or reverse it accelerates increasingly in drive foot off accelerator changed out altenator and Serpentine belt prior to this problem. Both are on correctly.
     
    0 answer
  • easy211
    easy211 - 2003 Kia Spectra - Engine - 8/20/2014
    When I put gas in car it will not start back up until fuel pressures back up
    also if you take gas cap off with engine running it dies
     
    0 answer
  • jime04
    jime04 - 2005 Kia Sedona - Engine - 8/17/2014
    Why does my van idle so high at start up.
    2500 RPMs at first, then reduces after 3-4 mins. I'm worried the engine might blow up. What can I do?
     
    0 answer
  • Megan
    Megan - 2010 Kia Forte - Engine - 8/17/2014
    I was braking to pull into my driveway and after braking the car wouldn't move until restarted.
    All the warning lights turned on. I could shift into park or drive easily but I couldn't turn the wheel or depress the gas pedal. It works fine now, with no warning lights on.
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2005 Kia Optima - Engine - 7/30/2014
    How do I find transmission plug so I can change fluid?
    Transmission is slow to shift,then shifts hard first time,then ok .
     
    0 answer
  • rocky
    rocky - 2008 Kia Sorento - Engine - 7/29/2014
    Gas backsplash during filling! Takes about 5 mins to take in a gallon! What is the cause??…
    I took charcoal canister out and no pellets! Don't know what else to check or test?
     
    • Jimm
      7/29/2014 Jimm
      The fuel issue is most likely related to a clogged fuel vent tube (routed alongside the fuel filler tube) - this tube can be unclogged using a length of hanger wire. If the hanger wire does not work then the fuel vent tube will need to be replaced.

      Try these sources for the replacement part; www.fillernecksupply.com, www.partsgeek.com - among others.
  • AutoMD Member
    AutoMD Member - 2007 Kia Rondo - Engine - 7/29/2014
    How to take the fuel pump out the gas tank
    everthing is ready explain how u take the medal ring off does it shrew off or pop off
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2013 Kia Optima - Engine - 7/23/2014
    Will kn air filter give me more hp
    I use shell 89 octane gas and once a month I use v power 92 octane
     
    • Jimm
      7/23/2014 Jimm
      Not really more HP - despite the claims. Regular maintenance according to the vehicle owners manual will optimize both fuel mileage and performance.
  • AutoMD Member
    AutoMD Member - 2013 Kia Optima - Engine - 7/20/2014
    Will a kn air filter give me more hp
    I use shell gas 89 octane and once a month 92 octane
     
    • CVO
      7/20/2014 CVO
      It's a better breathe than conventional air filter. It added a few miles more, it depends on driving habits too.