Six problems related to underhood wiring have been reported for the 1999 Jeep Grand Cherokee. The most recently reported issues are listed below.
Noise coming from the temperature controller in the center dash area even after the key has been removed. When running heater is on full on both sides with very low heat coming out on one side with cold air on the other. I have been told this will cost up to 1500. 00 to fix at the dealer with some reports saying it "may" need to be done again after 50-60 thousand miles. Also, blower motor controller located by the blower starts burning smell!! when it auto the control board failed and then blower quit. The motor must be replaced along with a wiring harness repair kit!!!! please tell me why no recall on this. It is such an issue the parts needed were on back order!!.
My wife was driving the Jeep one day when the air conditioner stopped working. After further adjusting the system, she concluded something must be wrong with the fan, as the heat would not work either. When I took it to oak hill automotive, it turned out that the blower module had melted; when the blower module melted, it also destroyed the control harness. The technician at oak hill automotive commented that if he had fixed one of these, he had fixed a hundred. Also, the control harness was expected to be a custom part, but it was in stock. The cause for the melting is unknown, though the repair shop speculated there might be a short in the system.
While driving on the NJ trnpke, the vehicle lost power and coasted towards the shoulder. Driver pulled over, and opened the hood, and didn't notice anything. While on the ramp, the vehicle started smoking and the thermometer gauge had begun to rise. The vehicle then bursted into flames . The consumer states that as they got on the ramp, a passing driver waved, and the consumer looked in the rear view mirror and saw the smoke coming from the engine compartment, possible ecectrical system failure.
Came home from work, parked car in driveway. Within 5 minutes a fire erupted in the engine compartment. I called the fire department who extinguished the fire. The car was declared a total loss. Neither daimler Chrysler nor my insurance company could determine the origin of the fire.
Noone in car, electrical fire, car totally burned, crysler taking no resonsibility.
Vehicle was parked at rest area. When consumer returned he saw smoke coming from underneath of vehicle. When he unlatched the hood, consumer noticed that plastic component was on fire, and there were a lot of wires that were melted.