Question about 2003 Kia Optima
Check the maf sensor and change spark plugs if you know it needs them. Possible coolant temp sensor as well. Do you have any engine codes on?
Posted on Mar 26, 2014
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Posted on Jan 02, 2017
start of at the gas tank look under neath there are some black lines running towards the engine follow it to a small gold color that ataches to the line you are following that is the filter the pump is in the gas tank you need to drop the straps at the tank to bring it down
Posted on Nov 05, 2009
Then you have a intermittent spark . Now do you have a spark tester to test spark. Its okay if you dont we have one . Oh by the way you did the fuel pump yourself. if you can do a fuel pump then you can do this to solve the no start problem. No spark tester? okay we will use that tachometer (RPM gauge). crank the engine does the tach meter reads zero at all times while cranking, if it does youll need a crank sensor. Here the story Rough running conditions and or stalling was caused by a faulty crank sensor, try shaking the connector or wiggle the crank connector then see if it starts. Youll need to inspect the connection for proper male to female connection these have been the most suspectable failure of KIA. If you decide to replace this sensor make sure connections are good, more than likely this was the problem and not the fuel pump
Posted on Apr 27, 2011
a wrench and just unplug the sensor wire and screw out and install new one. they make a special socket but i just use a wrench.
Posted on Sep 11, 2008
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