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Old 12-14-2008, 05:01 PM   #1
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Question Heater Switch Problem

I've got a 2000 Jeep Cherokee Classic with a heater switch problem - it only works on the highest speed..
My dad had the same problem with his 1991 Cherokee Sport a few years ago but he doesnt remember what the fix was for it.
Has anyone else had this problem? if so, please let me know how to fix it.

Thanks

ps. the fuses and relays are all good. that was the first thing i checked.
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Old 12-14-2008, 05:02 PM   #2
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a ground or I dont think it is vaccum driven but if it is vaccum lines
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Old 12-14-2008, 05:23 PM   #3
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The switch has several levels which can be the switch itself or the connection. The electric blower motor can run at any speed the switch tells it to run at provided that the contacts are all good.
I have never torn a switch apart but if it were mine I would attempt that first.
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Old 12-14-2008, 06:37 PM   #4
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I would say its most likely the blower motor resitor.

42 bucks at autozone for a 00 cherokee.
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Old 12-14-2008, 07:09 PM   #5
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Quote:
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I would say its most likely the blower motor resitor.

42 bucks at autozone for a 00 cherokee.

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Old 12-14-2008, 07:13 PM   #6
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Quote:
Originally Posted by offroadohio View Post
I would say its most likely the blower motor resitor.

42 bucks at autozone for a 00 cherokee.
yep had the same problem with the switch in my TJ in it ended up being the blower resitor
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Old 12-14-2008, 08:29 PM   #7
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thanks alot for your help. I'll try that n see if it works out.
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Old 12-15-2008, 02:16 PM   #8
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Quote:
Originally Posted by Jesse James View Post
I've got a 2000 Jeep Cherokee Classic with a heater switch problem - it only works on the highest speed..
My dad had the same problem with his 1991 Cherokee Sport a few years ago but he doesnt remember what the fix was for it.
Has anyone else had this problem? if so, please let me know how to fix it.

Thanks

ps. the fuses and relays are all good. that was the first thing i checked.
I just got done fixing my 96 and it was the resistor it cost 15 bucks at the jeep dealer
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Old 12-15-2008, 04:19 PM   #9
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It could be your HCV, I don't even know if the 00's have them, mine is a 94. Theres a vacuum line to it that will stick sometimes, you can manually pull them apart and WD-40 it.
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Old 08-31-2011, 10:05 PM   #10
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Bump., having the same issue. cant it simply be the switch?
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Old 12-07-2011, 09:09 AM   #11
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Im having the same problem. Replaced the resistor and nothing.

Last edited by xj00; 09-01-2012 at 09:46 AM.
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