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Home > Jeep Articles > Technical & Installation - Body Interior / Exterior > Blower Motor Resistor Fix |
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Blower Motor Resistor FixArticle written by Dr. JonesDate Added: 08/23/2009 Got a 97-99 TJ with a bad blower resistor? We?re going to save you up to $60. |
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Does your blower motor have two speeds, high and off? Chances are good you?ve got a bad blower motor resistor. Good news, it?s an easy fix. Bad news, the dealership wants over $60 for the part. At least that's what our local parts department decided this little platinum and jewel encrusted gem was worth. Some of you may be lucky enough to have a stealership that only wants $40. Others may be even luckier and find one at a parts store for about $25. That price is much easier to swallow, yes, but what if we told you that you can fix your old resistor for $1.95. That?s better than $25 and a helluva lot better than $60. |
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Installation | |||||||
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Start by removing the kick panel on the passenger side under the dash with an 8mm socket.
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2. Don?t forget the two on the bottom. |
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3. With the kick panel out of the way, the resistor is easily accessible. Slide the red plastic clip back, and remove the connector. |
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4. With an 8mm again, remove the two screws holding the resistor. |
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5. Carefully remove the resistor. |
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6. Here is the resistor out of our Jeep. Make sure yours is this style, not the thin credit card type, before trying to fix it. |
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7. With needle nose pliers, bend the tabs holding the cage on the resistor and remove the cage. |
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8. With the cage removed, we can clearly see the thermal fuse. This is the part of the resistor that fails most of the time and is our $2 fix. With a volt/ohm meter, check for continuity across the fuse. If you have no connection, the fuse is bad and lucky you, the resistor can be fixed. |
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9. Head over to your local Radio Shack, or other electronics supplier, and pick up a new thermal fuse. Make sure you get one with a similar heat range to the 130°C the factory fuse is. |
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10. Cut the bad fuse out with wire cutters. Cut close to the fuse so you have some wire left over to work with. |
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11. Rather than risk blowing the new fuse while soldering, we?re suggest using crimp on connectors. |
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12. Remove the plastic from the connectors so it doesn?t melt while in use on the Jeep. |
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13. Crimp the new fuse in place. Make sure the colored cone end is oriented the same way as the old fuse (pointing left in the picture). |
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14. Carefully put the cage back on checking the fuse for clearance. |
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15. As one final test before installing, check for continuity between the outside pins on the resistor. If you have a connection, put the resistor back in the Jeep. |
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 Final ThoughtsSuccess! We have all 4 fan speeds again. And we saved $58.02 by not supporting our local stealership parts department.Disclaimer: If your resistor is fried in some other way, this won?t fix it and you?re going to have to cough up the money for a new one. But 90% of the time this will work, and for $2 it?s worth trying. Also if you have a newer TJ, your resistor is different and this won?t work. But your part is cheaper so stop complaining. |
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Purchase / Vendor Info
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| Vendor Name: | Radio Shack |
| Phone: | 800-843-7422 |
| Website: | http://www.radioshack.com |
