Ram Van B250

Erratic Blower Motor Operation Due to Overheated Switch on Dodge Ram Van B250

Problem Description and Possible Solution

The blower motor may operate erratically and the blower switch operation has a sticky or mushy feeling, the detents almost non existent. Our technicians tell us that the blower switch should be removed and inspected for overheating. This is common if the blower motor is frequently operated on high speed as the current flow through the switch tends to melt internal the components. Also carefully inspect all of the switch connector terminals for discoloration due to overheating and replace as required. A poor electrical contact at the connector will also cause the switch to overheat.

Problem Data
RepairPal Verified
Average mileage: 119,000 (98,000–140,000)
5 model years affected: 1990, 1991, 1992, 1993, more1994
10 people reported this problem
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Same as what others describing - air switches between vents on acceleration