Random Misfire keeps coming back
08-19-2009, 09:38 AM
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Model: Cherokee
Random Misfire keeps coming back
I have a 97 Grand Cherokee with about 120K miles.
CEL came on about 2 weeks ago for a Random Misfire (43). Mech cleaned fuel injectors and cleared code. About 4 days later CEL came back on for Random Misfire and Misfire Cyl 5, Mech changed injector in Cyl 5 and cleared code. Yesterday CEL back on with Random Misfire (43 again). Always happens at highway speeds.
Mech says plugs and wires look good, recently replaced Crank Position Sensor and harness.
I am getting very frustrated with this.
Does anyone have any ideas?
CEL came on about 2 weeks ago for a Random Misfire (43). Mech cleaned fuel injectors and cleared code. About 4 days later CEL came back on for Random Misfire and Misfire Cyl 5, Mech changed injector in Cyl 5 and cleared code. Yesterday CEL back on with Random Misfire (43 again). Always happens at highway speeds.
Mech says plugs and wires look good, recently replaced Crank Position Sensor and harness.
I am getting very frustrated with this.
Does anyone have any ideas?
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