you probabally have a vacuum hose disconnected
rear wiper, rear defrost
2001 dodge ram 1500 ac and heater flow regulator switch does not work. works only on defrost. How to fix?
In a 1997 Jeep Wrangler, the relay switch for the heater blower and motor is located behind the dash. It will be directly behind the HVAC knobs behind the dashboard.
You could always take it to the shop You could always take it to the shop
you may have your switch on your heater control set to recirculate the inside air. it should be set for outside air recirculation
Replace the blower motor resistor.
Check the operation of the selector switch Check for a vacuum leak either under the hood or under the dash Check the operation of the vacuum actuated motors under dash
You have a vacuum line disconnected probably under the hood. The HVAC controls are operated by vacuum and when there is no vacuum it system goes into defrost mode.
Check for a vacuum leak either under the hood or under the dash Check the operation of the vacuum actuated motors under the dash Check the operation of the selector switch Defrost is the default position for this system
COULD BE A BAD HEATER CORE COULD BE A BAD HEATER CORE sounds like the heater control switch needs replacing.if that doesnt fix it, you need new heater core
No. A Jeep Wrangler does not have an inertia switch.
not function how. No heat, not enough, no fan doesnt' change heat to defrost? All different answers. No heat, not enough, May just be low on coolant. Therostat stuck open. No fan, fuse, ground, switch. Doesn't change heat/defrost? Cable, control, some switches are vacumn operated.