Two problems related to engine exhaust system have been reported for the 1999 Jeep Grand Cherokee. The most recently reported issues are listed below.
Gas tank was replaced mid July of 1999. After that date, the "check engine" light appeared. Service department claimed that the oxygen sensor was bad and replacing the part would fix the problem. The following day, the "check engine" light appeared again. Dealership was notified, but the service department was too busy to service us in the next few days. We went down to orlando FL, where we purchased the vehicle, and they saw the car immediately. The service department's diagnosis was the same as the dealership in jacksonville, FL. Oxygen sensor was reported as bad and replaced a second time in less than a week's period. The following day, on the way back to jacksonville from orlando, the "check engine" light appeared again and the dealership was notified in jacksonville. We are scheduled to have the car service again to correct the problem. Furthermore, the car is now running rough; indicating that the light is not just a malfunction, put a potentionally serious problem.
While driving at 40 mph, and upon pressing down on brake, vehicle shaks very hard, rotors appear to be very worn, vehicle has been taken to dealer approximately 5 times already. Consumer also stated there is a ticking noise from engine when starting up,steering damper and drag link assembly were loose,transmission shifts hard into reverse, right rear turn signal bulb was replaced, vehicle began to overheat, right side mirror was cracked,speaker was inoperative, the trim on the door panel was loose, exhaust system was loud, parking brake needed to be adjusted, passenger side seat belt was inoperative, passenger wiper blade was not cleaning the window, keyless entry remote was inoperative.