Heater Cores and Blower Fans
What would cause the blower fan in my 2001 Prizm to stop working in the 1st and 2nd position with only the 3rd and 4th positions currently working?
Asked in Oldsmobile Silhouette
Where is the high blower circuit on a 2001 Olds Silhouette?
Asked in Jeep Wrangler, Jeep Wrangler Sport
The blower in my jeep wrangler stopped working while it was on could this be a fuse problem?
It could be a blown fuse but more likely it is either the blower motor resistor or the blower switch itself. TJ's are prone to overheating and melting blower motor switches because of high current flowing through them. To test the switch, check all four fan speeds to determine which of them is inoperable. The blower motor resistor regulates the blower speed on positions 1 through 3. If the blower doesn't work on any position 1 through 3 but it works on full speed (Position 4), the blower motor resistor is bad and needs to be replaced. If the blower doesn't operate at full speed (position 4) the blower motor swithch is bad and you need to replace switch assembly, After that, check the lower fan speeds to make sure they work. If any of them doesn't work, replace the blower motor resistor also.