Three problems related to crankshaft position sensor have been reported for the 1998 Jeep Grand Cherokee. The most recently reported issues are listed below.
Car stalls without warning while driving. Happens at any speed, from 70 on the highway to 5 mph on our road. No warning. Internet search indicated many Jeep owners with same safety issue and no permanent fixes. Have taken to independent auto mechanic and have replaced ignition components (ignition coil, plugs, wiring, distributor cap and rotor and crank sensors) with no results to correct issue. This is very serious and dangerous condition that needs to be addressed by manufacturer.
The contact owns a 1998 Jeep Grand Cherokee. While driving 25 mph, the vehicle stalled when decelerating or turning. The dealer replaced the ignition sensor and crank sensor. The relay wiring overlay on the crank positioning sensor was the most recent replacement; however, the vehicle continues to stall. The contact has to place the vehicle in neutral in order for it to restart. The dealer advised him to bring the vehicle back. The current mileage was 126,00 and the failure mileage was unavailable.
I own a 1998 Jeep Grand Cherokee laredo, 4. 0, inline-6, 2wd with 118,000 miles. My 98 jgc started stalling randomly; on acceleration, deceleration, highway, stoplights, etc. It would always start back up and run again, but the stalling would happen at any time. No codes would register either. The idle air control motor and ignition coil was replaced, but the problem continued. I replaced the ignition wires, distributor cap, spark plugs, rotor and throttle position sensor but still the same. Out of desperation, I replaced the crankshaft sensor and checked for loose and rusty connections. This is very dangerous.