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Unread 11-16-2002, 08:29 PM   #1
Registered User
Join Date: Nov 2002
Posts: 21
Question heater runs and runs...

First off let me say,some of you really know your stuff and this is a good forum board.Now with winter around I went and hook'd my heater motor up(larger gm unit)ground'd it and it started runnin'...what went wrong here? I like heat but come on,turn off.Any solutions?Thanks

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Unread 11-16-2002, 10:57 PM   #2
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Join Date: Mar 2002
Location: Grants Pass, OR
Posts: 203
ok this is REALY REALY REALY SIMPLE!!!! the only way a motor wil run is if it has power. so either one or two things has happened. one possibility is corosion in your heater switch which in a jeep isnt uncomon when seals leak and water runs down your dash and into switches if the switch is coroded or has water in it it can cause it to turn on. number two is there could be a short and the short is feeding power to the motor the best way to find it is with a test light or volt meter. the quick sheezy redneck soloution is to put a single flip switch on the dash and hook it up to power and to the motor then you have full on or full off, the other way is to trace the power back,, mabey someone jerry rigged the wiring and you dont know it????? ive seen all kind of weird wiring on my jeep that I had to fix. trace the power back, if it goes to the switch and you turn the switch all around and it dosent change speeds or turn off then the switch has a problem, here is a like where you can order the proper switch http://www.wilsons4x4.com/Merchant2/...ry_Code=switch
, but as a temporary fix i would just put in a heavy duty flip switch temporarily untill you can get a new switch if that is the problem,, rember a test light is like 3-5 bucks at the parts store and is a nessicity for wiring problem diagnosis good luck to you
If its broke I can fix it. if it isnt broke give me a minute!!!

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Last edited by scottahicks; 11-16-2002 at 11:02 PM..
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