1991 Jeep Cherokee Repair Question
Mileage: 132,000 miles.
Jeep Cherokee Sensor Problem
Answer
crank sensor is a common failure. check it
Roy
ive been having a problem with a theft system. the passlock sensor could be failing. with your vehicle, the resistor could be built into the ignition switch. you could be spending about 75-150 for that part, the passlock sensor.look at partsgeek.com. if you have a key with a resistor(chip), then at an alarm shop, they can get the resistor numbers from that key and install the new resistors, bypassing the sensor. also, check out ikeyless.com. they can replace a transponder key. you will have to make sure it can be programmed, and have spare keys. watch youtube video by nerdboytv. he can show you specifics on how to reprogram the key once you have it cut at an ace hardware. thats if it has the chip (resistor). the very inexpensive way. hope this helps
Put in a new crank position sensor, and key doesn't have a chip.
checked the passlock sensor? or ignition switch-wires-resistor? my sunfire was doing the same thing