Three problems related to defogger have been reported for the 2003 Dodge RAM. The most recently reported issues are listed below.
The ventilation system failed as is common with these vehicles. Due to weal parts, the, "doors" that control air flow through the ventilation ducts broke. I have slowly replace each of the four doors as they failed. As they went out it affected every aspect of ventilation, including the defrost. After doing some research it is evident Dodge was fully aware of this issue but made no improvements to the system, continuing to sell these vehicles to an unsuspecting public for several years.
The contact stated defogger system stopped working due to the design. The inner routing flap broke, allowing the heat to go to the air conditioning vents instead of the windshield defroster/defogger blower. The contact took the vehicle to a dealer however, no repairs have been made due to excessive expense.
The windows of the van will not clear of fog with the heater on hot and the blower on high. The dealer said that they can't fix the problem,that all vans of this year act the same. I have to drive with the rear window open.
| Defogger problems | |
| Windshield Wiper/washer problems |