Three problems related to engine shut off without warning have been reported for the 1998 Jeep Grand Cherokee. The most recently reported issues are listed below.
As with many other posts, the vehicle just shut down while driving on the parkway. Pulled off the road put the car in park restarted , waited a minute drove another 20 miles home , no problem. This has happened before in the driveway, or just leaving the house but never on the road. Have replaced ignition switch, both O2 sensors distributor cap, rotor and wires. Fuel pressure is good . Don't expect a fix from Chrysler , there are many posts here and online with no fixes. Just thought I'd add my experience to the mix. Time for a new car!.
The contact owns a 1998 Jeep Grand Cherokee laredo. While driving approximately 20 mph, the vehicle completely shut off. The failure occurred over ten times leaving the contact with no power. An independent mechanic could not find the cause of the failure. The second time the failure occurred, the mechanic insisted that the asd relay and ignition coil needed to be replaced. After replacing the asd relay and ignition coil, the failure recurred. The latest occurrence was when she drove from a parking lot and tried to drive forward and the vehicle shut off. The dealer or manufacturer have not been notified. The current and failure mileages were approximately 137,000. Updated 020209 updated 02/03/09.
At 45 mph engine shut down and died restarted 20 min. Later dealer could not find out why.