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Kia engine repair questions and answers

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  • medo
    medo - 2005 Kia Optima - Engine - 3/18/2014
    when my car is temprature hot its radiator hoses both upper and lower are fine but when car is cold they both are bent
    when my car is temperature hot its radiator hoses both upper and lower are fine but when car is turned off left for cooling down they both are bent inwards whats the reason pls tell
     
    • Jimm
      3/17/2014 Jimm
      The suction from the water pump usually affects the lower hose.
      For the top hose it's suggested to check the radiator cap and the overflow tank line for blockage.
      Jimm
      3/18/2014 medo
      sir i have channge water bump
      Jimm
      3/18/2014 medo
      pls reply
    • Jimm
      3/18/2014 Jimm
      Have you checked the radiator cap and the reservoir / overflow tank line for blockage? If not, then start with these components.
      Jimm
      3/19/2014 medo
      i think they r fine maybe but confused in e reservoir / overflow tank line for blockage? pls explain it thnks
      Jimm
      3/19/2014 medo
      should i change the cap
  • AutoMD Member
    AutoMD Member - 2005 Kia Optima - Engine - 3/14/2014
    Check engine light came on, now will start but shuts off
    The car ran fine coming from work, now wont stay on. Check engine light was not on prior to going out to start it just now
     
    • HouseCallAuto
      3/14/2014 HouseCallAuto
      Plug in a code reader and see the fault code that is now stored so the problem can be diagnosed.
  • Thomas
    Thomas - 2003 Kia Spectra - Engine - 3/12/2014
    Car won't start unless I apply gas immediatley
    Was starting but when I shifted intio gear it would almost stall and I would have to pump the gas to get it to drive but would drive fine. This morning it stalled when I started it and I had to pump the gas to get it going
     
    • HouseCallAuto
      3/12/2014 HouseCallAuto
      Plug in a code reader and see what fault codes may be stored. the check engine lamp need not be illuminated for a code to be there. Post the code number after you check. This step cannot be skipped.
      HouseCallAuto
      3/13/2014 Thomas
      I was told by a Mechanic the Check eNGINE LIGHT NEEDS TO BE ON TO CHECK IT. iTS NOT ON.
      HouseCallAuto
      3/13/2014 HouseCallAuto
      You were misinformed. You cannot begin to diagnose any car without checking for fault codes first. That is a step that cannot be skipped.
  • Thomas
    Thomas - 2003 Kia Spectra - Engine - 3/12/2014
    Car won't start unless I apply gas as soon as I start it
    It was starting but when I would put it in drive it would almost stall and I could put the gas pedal all the way to the floor,then it would run. This morning it wouldn't start unless I applied gas immediatly.
     
    0 answer
  • AutoMD Member
    AutoMD Member - 2004 Kia Optima - Engine - 3/11/2014
    Check engine code p320
    rpm gage not working
     
    • Jimm
      3/11/2014 Jimm
      P0320 = Ignition/Distributor Engine Speed Input Circuit Malfunction
      First check the 20 amp ECU fuse in the under hood fuse box. Also check the O2 sensor fuses. If good, next check for battery voltage on the tan/black wires going to the coils while cranking. If good, check for ground of 0.05 volts on the black wires going to coils while cranking. If either is missing, check O2 wires for chafing or rub thru on heatshields or other objects under vehicle. Verify the O2 sensors operation is correct, if so - suspect the ignition failure sensor.
      The ignition failure sensor is not expensive and easy to replace. It is at the driver side end of the rear part of the valve cover.
  • joe
    joe - 2005 Kia Sedona - Engine - 3/10/2014
    Connector for scan tool
    can someone tell me where to connect scan tool on this van? I don't see nothing under dash. but under hood it has a connector that says diagnostics and has 12 pins, I have a 16 pin scanner, will this work. thanks
     
    • Jimm
      2/3/2014 Jimm
      The OBD2 / EOBD standard 16 pin data link connector located under the driver side dash panel.

      The diagnostic port located under the hood is Diagnostic Link Connector No. 73 - Left-hand side of firewall.
      Near or in the fuse box, or near the battery. Next to the airflow meter or battery.


    • Tracyskarma
      3/10/2014 Tracyskarma
      usually driver side right under dash....just about where your right knee is when you're sitting in driver seat. Thats where it is in my Sorento
  • AutoMD Member
    AutoMD Member - 2009 Kia Rio - Engine - 3/7/2014
    Car will not start: completely dead.
    UNTIL...open & slam the door, then the indicator lights all come on ( digital mileage read out, trip, etc.) at this point the car will start. there is no interruption during driving..when stop & turn off; same thing to re-start...entire system is dead: no read-outs, ...
     
    • Jimm
      3/7/2014 Jimm
      Yes - either loose battery connection - could positive or negative cable - at the battery or the other ends. I'd start right there - check the battery terminals for loose connection / corrosion - should be clean and tight.

      Also, check the negative (chassis) ground cable connection - opposite the battery - could be loose. Once these are OK - then move to the electrical system - checking wiring condition / relays / fuses connections at the panel.
      Jimm
      3/7/2014 AutoMD Member
      thank you..that's where I will start.
  • AutoMD Member
    AutoMD Member - 2001 Kia Sportage - Engine - 3/7/2014
    Lagging power oxy and camshaft changed now wont start
    HELP sportage was starting and driving ok but going though a lot of fuel and lacking power when diving or excelerating. Husband took off both catalac convertors completely still didn't fix. Ran codes that triggered both the oxygen sensor and the cam shaft sendor so ...
     
    • HouseCallAuto
      3/7/2014 HouseCallAuto
      Maybe the timing chain jumped. that would rob all the power and make someone think that the exhaust system is restricted from clogged cataklytic converters. That would also set a camshaft position sensor code.
    • bear.1216
      3/7/2014 bear.1216
      I would test the fuel system. Could have bad fuel pump, bad pressure regulator or a clogged fuel filter. Do a fuel pressure test to confirm. What were the diagnostic trouble code numbers. If you list the numbers it would help narrow things down. Did the vehicle run at all with the new cam sensor. If it ran with the old sensor and not with the new one, try reinstalling the old part or getting another sensor. It is possible to get a faulty new part. If your car turns over but wont start, you should start with the basics. Your engine needs fuel/air mixture, compression, spark and timing to function. Make those checks first. Check for fuel pressure and volume at the fuel rail test port. Then do a full compression test. From your origional symptoms I would recommend a compression and leakdown test for sure. Check for spark. Test for power to the ignition coils. Then you check timing. Not just ignition timing, but also valve timing. The cam sensor is a major part in establishing your timing. It controls the ignition timing and fuel injector timing. A fauly sensor will cause all of your issues. I would also check the condition of the timing belt. I suspect that your cam sensor was weak and failing and then you replaced it with a bad new sensor. I had this exact thing happen a few weeks ago. Typically if your engine fails to start and it does not set a DTC or check engine light, it is usually a bad fuel pump. Your engine diagnostics moniter all the sensors for faults, but it cant moniter if there is actually fuel in the lines. That is what you need to check.
  • AutoMD User
    AutoMD User - 2007 Kia Sportage - Engine - 3/2/2014
    Surging until about 15 mph
    surges from dead stop or at low speed but does not do it in reverse. Doesn't matter if it's hot or cold. 80000 mi. No engine light is on.
     
    • Jimm
      3/2/2014 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
  • AutoMD User
    AutoMD User - 2007 Kia Sportage - Engine - 3/2/2014
    Engine surges from dead stop
    surges from dead stop or low speed until approx.10-15 mph but does not do it in reverse
     
    • Jimm
      3/2/2014 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
  • AutoMD Member
    AutoMD Member - 2000 Kia Sephia - Engine - 2/28/2014
    My car shakes in the front around my dashboard and front seats when the car is in Drive and my foot is on the brake but
    stops when i accelerate. Also my check engine light and OD light is on. I goes off shortly from time to time but pops back on eventually.
     
    • Jimm
      2/27/2014 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, etc. 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.
      This step is important - retrieving the stored fault code and relaying this detail - will provide good information to assist in diagnosing and repairing the issue you are having.
    • AutoMD Member
      2/28/2014 AutoMD Member
      P0734 (Gear 4 incorrect ratio)
      P1624 (Cooling fan relay low circuit)
      P0753 (Gear 3 incorrect ratio)
    • Jimm
      2/28/2014 Jimm
      P0734 = Means incorrect 4th gear ratio. (or tcc problem). Tcc means torque converter clutch. Your car has a shifting problem. It is not shifting into overdrive, (or lock up the torque converter).

      P0753 = Incorrect 3rd gear ratio - similar to the previous code P0734.

      P1624 means that the transmission controller has stored the code and is sending a signal to the pcm telling it that there is a transmission related code

      Have transmission tested for these items; torque converter clutch, lock-up / control solenoid.
  • AutoMD Member
    AutoMD Member - 2000 Kia Sephia - Engine - 2/27/2014
    My car shakes in the front around my dashboard and front seats when the car is in Drive and my foot is on the brake but
    stops when i accelerate. Also my check engine light and OD light is on. I goes off shortly from time to time but pops back on eventually.
     
    • Jimm
      2/27/2014 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, etc. 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.
      This step is important - retrieving the stored fault code and relaying this detail - will provide good information to assist in diagnosing and repairing the issue you are having.
  • AutoMD Member
    AutoMD Member - 1999 Kia Sportage - Engine - 2/26/2014
    Why are the fuel injectors not opening?
    Gas tank and parts in are new computer replaced ignition switch replaced fuel is pumping but the injectors wont open .
     
    • John's Auto Repair
      2/26/2014 John's Auto Repair
      How are you determining that the injectors are not opening? I would check for positive voltage
      to one side of each injector plug first. also check for any trouble codes stored in the computer.
  • AutoMD Member
    AutoMD Member - 1997 Kia Sephia - Engine - 2/26/2014
    Why does my car on idle, shakes, struggles to run, and at random..turns off (faints), but not when I drive continuously?
    When its cold, its ok. Its when the engine gets hot is when the problem occurs. It feels like 2 or one of the cylinders are working for a brief period causing the loss of power, but they are working. I replaced the spark plugs. So I got new ones in there. I replaced ...
     
    • Jimm
      2/26/2014 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
      3/5/2014 AutoMD Member
      THANK YOU JIMM!!! Your list gave me the opportunity to conduct a process of elimination to pin-point my issue saving me hundreds! When I took it to a mechanic slowly n safely, I asked for a OBD CODE and said there were issues with cylinders 2,3, and 4. So, armed with your list, I drove it to a a discount autopart retailer (mom-pop type) and changed the spark plugs(THROWING AWAY THE BRAND NEW AUTOLITES THAT AUTOZONE ISSUED) and had them replaced with NGK and following your list, cables too. :)
  • AutoMD Member
    AutoMD Member - 2004 Kia Sedona - Engine - 2/15/2014
    Crank no start, no fuel pressure and no spark. no codes
    checked crank and cam sensors and they were generating a signal, checked wire harness to pcm and that checked out as well. the 10 amp engine fuse blew and after doing all the stated checks the fuse is still good but just cranks. could there be system to check or ...
     
    • HouseCallAuto
      2/15/2014 HouseCallAuto
      Check the connector and wires for a short at the Vehicle Speed Sensor (on the transmission) and confirm that the VSS is not shorted out because that would blow the engine fuse and / or prevent communication and computer would not function causing no spark or fuel, probably no check engine light even illuminates at key on engine off.