How does the heating system work on a Jeep Wrangler?
The Heater Core is always hot while the engine is running but no air is moving through the system. Now we’ll take a look at Defrost. In this position, vacuum is supplied to the vacuum motor which opens the right Cowl Gate. This allows fresh air from outside to enter the system through the Cowl Vent and travel down to the blower motor.
What should I do if my Wrangler heater is not running?
The water should run freely into one hose and out the other. If it does not than the heater core is clogged and must be replaced. Attach a voltmeter and test the blower motor with the car running and the heat turned on medium. The blower motor is located near the headlight just in front of the batter.
Where is the heater core on a wrangler?
Remove the heater core intake and exhaust hoses by unfastening the clamps with a flat head screwdriver. The intake and exhaust hoses run from the top of the radiator into the passenger side firewall. The water should run freely into one hose and out the other. If it does not than the heater core is clogged and must be replaced.
Do you need an AC unit for a Jeep Wrangler?
As a result, Jeep Wrangler owner must have superior heating and air conditioning systems than the average driver. We offer a wide selection of Jeep Wrangler TJ heating and ac parts that can be used for replacement or upgrade. This includes ac condensers and compressors, heater cores and motors, and heater control knobs and ducting.
How does the YJ heating system work in a Jeep Wrangler?
This allows fresh air from outside to enter the system through the Cowl Vent and travel down to the blower motor. The passenger Vent Gate is closed directing the air towards the heater core. Notice the temperature slider has been moved over to the warm setting. This fully opens the Blend Gate allowing air to pass through the Heater core.
Why is my Jeep Wrangler heater not running?
Notice the position of the dash control sliders. In this position, all Gates are closed, and the Blower Motor is not running. The Heater Core is always hot while the engine is running but no air is moving through the system. Now we’ll take a look at Defrost.
Why does my Jeep Wrangler have a heat blend door?
If I set the the controls for floor / defrost and full heat I get hot air on feet and windshield, if I turn the heat knob back to half way in the red, I get warm air on the windshield and cold on the floor. So my question; What am I looking at replacing?
Where is the blower on a Jeep Wrangler?
The blower motor is located directly behind and below the passenger vent (as shown) and pulls air directly from the cowl vent at all times while in operation. The blower motor operates only when the dash control is in the Defrost and Heat positions. It’s speed is directly controlled by the fan speed switch on the dash control panel.