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/wwwthreads_images/icons/crazy.gif Jeep Girl, this is crazy....my 1987 thru 1995 Jeep Wrangler book shows the same heater that our '79 CJ has??? How can this be?? The blower works through a resistor which is under the glove box, and has three wires plugged into it. BLK TAN and LG (whatever that color is). The motor plug is under the hood on the diagram, under the battery, like the CJs have it. If the blower switch is on High, ther resistor is out of the loop so that eliminates the resistor as a suspect. Find the under hood blower...pull the wire off and check for current....if no current...check fuse (25 AMP) So there are two switches...the heater switch, and the heater SPEED switch. The orange wire should be plugged into the speed switch. /wwwthreads_images/icons/wink.gif

CJDave
 

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/wwwthreads_images/icons/tongue.gif According to this here liddle ol' diagram, there is a switch that actually turns on the blower there on the dash, and another switch that controls the speed right there in the dash. Now they COULD be integrated into a central control; and this is the hard part since I have never even SEEN the inside of a YJ; but there has to be SOMETHING that says Hi-Med-Lo on the dash. If that orange plug-in is behind the dash, look close behind the heater control for some terminals...probably three in a group that matches the plug pattern. Hope this helps a little. Remember...you can pull the plug under the battery and check that wire for current.You can also put current on the terminal that the under-hood wire hooks to an see if the blower starts. Then you'll know it's the circuit, not the motor. /wwwthreads_images/icons/smile.gif

CJDave
 

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/wwwthreads_images/icons/cool.gif I think that's right on BigMan, if there is a wire hanging, then it can't possibly work. We just did the heater motor upgrade in our CJ and replaced our switch as well. We have the single switch like yours has, with the resistor on the fresh air duct to get different speeds. Man are we ever getting anxious to get back to work on the SNOJEEP. The project has languished because we have both been too busy at work. I have this week and next of a frantic pace. After that.....well it's all about the CJSNOJEEP. /wwwthreads_images/icons/smile.gif

CJDave
 
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