Question about 2004 Kia Optima

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2004 kia optima

I read your solution on the kia not starting. I just recently replaced my timing belt, crank sensor, and cam sensor. The car still won't start. No spark or no fuel. It just died at a stop sign. developed a rough idle the same morning. Code fault was crank sensor. Ecm gives past data, compression is 200 lbs in 3 cylinders, and 180 lbs in the last. But could be from no fuel.
Cleared code with scanner and even removed positive terminal from battery 15 minutes. Completely stomped. Car has 124k.

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  • Anonymous Mar 17, 2014

    turns over put want start. acts like timing is off. changed timing belt.

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  • 367 Answers

Try the ignition switch,

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

Posted on Jan 19, 2009

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SOURCE: 2004 Kia Optima no start after timing belt, crank, cam sensor replacement

my thoughts on this are that you have the car timed on the wrong stroke. a four stroke engine has an intake and an exhaust stroke that if it is timed on the exhaust the crank and cam sensors will not know when to fire the ignition or the injectors they will essentially be firing when the car is trying to excavate the mixture of fuel into the exhaust manifold. double check the timing of the car and go from there. If that is already done then I am assuming that the car has a crank sensor that needs to be gapped correctly into the ring as does the cam sensor. This is a common problem among many makes with these sensors that take the place of traditional timing and distributor.

Posted on Dec 07, 2008

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