Question about 1999 Jeep Wrangler

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Fan blower wouldnt work in 3rd position now wont blow at all

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  • dirtwork2003 Aug 06, 2010

    removed risistor apeared ok replaced any how .25dollars replaced fan control switch it had loose terminals 22 dollars still didnt work. pulled blower motor run jumpers to it it was ok then inspectid its conection it was partly burnt took screw driver and tighten contacts and scaped off burnt particals, now it works fine have all speeds.

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Check blower risistoe on heater box,wiring also melts connector at resistor block

Posted on Aug 04, 2010

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The wiring can get fried as well. If you bought a cheap relay (under passenger glove box area) it may back feed into the selector switch and get hot and cook the switch. Sometimes, your fan will run fine when you use jumper leads to test it but it may be burnt out (brushes) and on its last legs too. If there is like a carbon dust or ash present on or near the fan housing, it may be time to replace the fan. (remove it from under the hood in back of battery) Get one that has a good warranty as many cheap fans are just that! I had to learn this the hard way. If your connector is melted on your selector switch, I drew a diagram of what color wire went to what prong before I cut the melted connector and then spliced and soldered heavy gauge wire extenders onto those and taped them then used the appropriate sized female connectors to plug ONTO the selector switch. Use liquid tape to prevent them from making contact and tape all of your bare wires up as well.. A cheap relay may stay stuck open and for all it is worth, buy a better one. Fan blower speed switch is notorious for burning out. To save you a lot of grief you may want to just replace them all if you have a lot of miles on the vehicle. Blower speed switch,resistor(under passenger glovebox),relay and blower fan. They can all be bought seperately now and you do not need to buy the whole console/module. Hope this helps.

Posted on Jan 11, 2011

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