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Old 11-17-2010, 11:09 PM   #1
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Heater/cooler switches

So about a year ago, my 1st speed of the 4 speed switch for my ac/heat decided to stop working. 6 months later, my 2nd speed decided to stop working. The 3rd and 4th speed are at the same pressure as normal, and haven't lost any oomph. Yesterday the directional switch decided to go out on me. Luckily it is stuck in the defrost position, so I can defrost my windows in the morning. The ac/heat switch is working just fine. Any suggestions?

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Old 11-18-2010, 04:05 PM   #2
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bump for my sanity!

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Old 11-18-2010, 04:12 PM   #3
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I lost speeds 1, 2 & 4. I checked the continuity on the switch today and only had continuity on the 3rd speed, ordered me a switch panel for $100 , it will be here tomorrow.

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Old 11-18-2010, 04:20 PM   #4
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bleh.. is this just a plug and play swap?
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Old 11-18-2010, 04:32 PM   #5
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Loosing speeds on the fan switch sounds like a blower resistor is bad (could also be the fan speed switch), the directional problem sounds like a vacuum line may have come loose.

You don't have to buy the whole panel, the fan switch is about $25 at the dealer.

Start by looking at the back of the panel (pictured above). Sometimes the connectors attached to the fan switch and/or the climate mode switch are melted. It isn't too hard to access that panel.
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Old 11-18-2010, 04:34 PM   #6
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it looks like it, just unplug the wire harnesses from the back and plug them into the new one. I did just find a switch on quadratec for just the fan speed. Here is the link - Original Replacement Parts 17903.04 - Heater Blower Motor Switch for 97-02 Jeep® Wrangler TJ - Quadratec

Your directional change may be a loose vacuum hose, I believe that is all controlled with vacuum hoses.
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Old 02-29-2012, 03:23 PM   #7
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It's been awhile since I posted here, but I had 2 problems. The first was a loose hose going into the manifold. That fixed my directional issues. The second was a bad Heater Resistor. This was a fairly easy swap.

Problem 1: 2 cents for a zip tie.
Problem 2: 18 bucks for the part.

I now have all speeds and directions again. My contacts thank me the most.

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