I have a 2003 jeep grand cherokee laredo same problem, kept stalling on me.it would start fine but after 25 minutes running the car would shut off.had to wait for it cool off to get it to start again.i first thought it was a bad fuel pump but it turn out to be a bad camshaft sensor and bad crankshaft sensor.had to take it to pepboys to put in the crankshaft sensor could not reach the sensor .Mechanic had to drop the transmission to connect this sensor.Car is now working fine.
HI:
sounds like you have multiple problems, but maybe not. One thing you have to do first is have your Jeep scanned to see what exactly is tripping the light. Most auto parts stores will do this for free. This way you can start looking in the right area for the problem. Once you get the code, and the faulty area, you can move forward from there.
The check engine light comes on whenever a fault is detected in the electronic controls of the engine or emission system or the transmission, to find out what this fault is you need to have a OBD 2 fault code test run, there are over 200 possibilities here that can cause this ligfht to come on.
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