The car just shut down and lost compression, Two weeks prior a mechanic had replaced the crank position sensor and the timing belt.The vehicle temp gauge did not show any sign of overheating nor did I smell anything. I had it towed back to the mechanic and he states that the thermostat probably locked up and caused overheating hence blowing the head gasket. To note when I saw the newly installed timing belt it had notches on it every three inches or so along the entire length. I don't believe this guy and I think he is trying to lead me into believing his prior work only two weeks ago did not have anything to do with this.Please help Thanks
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Re: Kia optima LX 2004 shut down at about 50mph
Was it the timing belt or the serpentine belt that was replaced (not the same item). It's possible the previous service may have had something ot do with your current problem but I'ts impossible to tell from here. I was once a professional warranty inspector and even hands-on with your vehicle it would be difficult to draw any connection between the two failures. If you do not trust the shop or technician that works on your car, don't use that shop. Trust and confidence is important but must be earned.
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Don't do it your self. Unless if you are a qualified mechanic you will ruin your car and void your warranty. How ever you can buy them for $63 @ http://www.drivewire.com/vehicle/2004-kia-optima/camshaft-position-sensor/------------------------------------------------------------------------------------ galletto 1260
To removed the door panel. Remove 1
screw in the grab handle pocket, 1 behind the door open lever, and 2
screws at the forward edge, the bottom edge, and the rear edge. Remove
the small window-corner speaker if equipped. Then lift off the door
panel. Don't lift too far, there are wires to disconnect.
Door won't open?
those of you whose door is shut and you
cannot open it, here is the trick that the Kia mechanic.
Insert the key into the door lock. In one quick motion, simultaneously
turn the key to the unlock position AND pull the handle. It took us
several attempts to finally get it to work.
A crank-no start condition can definitely be caused by a faulty crank sensor; if after testing the crank sensor and finding it defective you will need to clear the codes and drive for at least a couple of drive cycles to see if the emission codes are legitimate or were simply induced by the failure of the crank sensor.
The thing is your doing the timing belt the water pump is right their with it . it should cost you much more at all besides the cost of the water pump. When doing a timing belt I have a rule that I go by The timing belt/seals =cam , crank , any pulley & tensioner & water pump all get replaced at the same time. I did a t-belt on a Audi A-8 very complex whole front of car has to come off as well, he didnt want to do w-pump & thermostat his thermostat was their as well not even a month later the water pump gave out he had to pay double the price because he didnt want to do it when I had it apart the first time. And make sure mechanic is ase certified . good luck
For the Crank sensor there is a small metal disc that mounts behind the sensor if that is cracked or dammaged or installed backwards you will get same results as if it wasn't Make sure the timing marks line up on your timing belt. www.kiatechinfo.com