2004 Grand Cherokee. Consumer states pulse module problem. The consumer stated the air conditioning unit ceased to function. The vehicle was taken to the dealer where the problem was diagnosed as a bad plug connector. They repaired the connector by cleaning and re-installing the pins at a cost of $170. Shortly thereafter, the unit once again ceased to function. The consumer stated he had to wiggle the plug in order for it to work and it only worked intermittently. The consumer was informed a repair kit was available with replacement parts. The dealer informed the consumer they would ship the parts to his hometown. It took approximately 2 1/2 months for the parts to arrive only after numerous phone calls. Upon inspecting the malfunctioning parts, the consumer found that they were badly burned and the wires were melted.

- Berlin, MD, USA

3rd failure of climate control system inside vehicle controlling A/C, heat, vents, etc. Have paid a total of $3119 to have it repaired with new oem Chrysler replacement parts by certified mechanics. The same failure continues to occur where the climate control "blend doors" break in their plastic housing causing the doors to move independent of the computer control signals. In the winter, cold air will blow regardless of setting, and in the summer hot air blows - also regardless of setting. This latest failure occurred outside of the warranty. It was already fixed once within warranty period before 2 subsequent failures. Dealer reps informed me that 80+% of vehicles with dual climate control option have this problem. I have owned a 2000 and 2005 Grand Cherokee and have also experienced the same issue with both vehicles.

- Hermosa Beach, CA, USA

Dashboard has a loud creaking sound coming from its underside when turning on ventilation? there is creaking from the dash seconds after shutting the engine off. There are strange numbers popping-up on the climate control display. The cold ir blows from one side of the dash even when the heat is turned on. Research has shown all 1999-2004 Jeep Grand Cherokee with electronic dual climate controls will eventually require major repair in order to cure hot air/cold air blowing from vents when they're not set to do so.

- Bellevue, NE, USA

When I turn on the A/C it only comes out 1 side while heat comes out the other side. Dealer will not fix.

- Midlothian, VA, USA

The contact owns a 2004 Jeep Grand Cherokee. The contact stated that the air conditioner leaves puddles underneath the vehicle. The dealer was unable to locate any failure. The air conditioner continues to leak and the check engine light illuminated. The dealer diagnosed the vehicle as needing a new emission line. The current mileage is 64,000 and failure mileage was 33,000. Updated 02-01-08.

- Lake Worth, FL, USA