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2003 Mitsubishi Eclipse GS 3dr Coupe 2.4L Manual

2003 Mitsubishi Eclipse
Trim Info:
Front Wheel Drive, 3 Door Coupe, Sub-Compact
23 mpg city / 31 mpg hwy
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July 3, 2013, 6:11 pm

Travis C
 

Question: car will stall and then not start

My car randomly started having problems where i can drive for 10-20 min and then it will stall out and not start again. I thought it might be fuel related so i changed the fuel pump and the fuel pump relay. Still no luck so i thought it was electrical. So then i changed the spark plugs, wires, and the coil. Still does it. I checked every fuse and relay also. Now im stumped. If i cant figure it out im bound to take it to a shop which im guessing big bucks. So thank you in advance for your help.


July 7, 2013, 12:01 am

Ron W
Expert Mechanic

May be the Crank Position Sensor is not working well.

It sends out the RPM signal to the PCM. If it is bad, there is no RPM signal, and the PCM will not command the injectors to fire. Easiest way to see if it works is to hook up a scantool and crank the engine. Monitor the datastream for RPM. If you see RPM then the sensor is working, if it reads zero RPM, then there is a problem with the Crank Position Sensor circuit.

Typically they fail when hot, then work again when they cool back down.


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