1999 Ford Explorer Blower No Power

FORD EXPLORER
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GREGS31406
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  • 1 POST
I have a 1999 Ford Explorer with a 4.0 SOHC engine. It has 136,000 miles on it. My wife was having problems with the turn signals and went to an auto parts store to get a new flasher. They were unsure which fuse it was and changed one that looked like it. Turned out it was the wrong one. While changiong the fuses around the blower motor for the a/c and heat stopped working. I changed out the blower relay. I also changed the resistor assembly. I can get no power to the blower. When I operate the fan switch inside the car, I hear a clicking noise coming from the resistor assy I changed.

Any ideas.....
Apr 18, 2007 at 7:16 AM
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BHUGG
  • ✓Experienced Mechanic
  • 157 POSTS
Check carefully to be sure that they put the fuses back in the right spots. Check in the owners manual for the proper location of the fuses.
Also check the power distribution box for a blower fuse. It will be in same box as the blower relay.

Good Luck.
Apr 18, 2007 at 7:06 PM
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LES DANE
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  • 52 POSTS
you get no power to the blower- are you getting power to the resistor? If no, are you getting power to the blower switch? If yes replace switch- if no backtrack to power supply.
Apr 19, 2007 at 11:08 AM

Suggested Repair

Confirm every fuse was returned to the correct position using the owner's manual, and check the blower fuse in the power distribution box with the blower relay. Then verify power at the resistor and blower switch; if the switch has power but the resistor does not, replace the switch, otherwise trace the circuit back to the power supply.

Conversation Summary

A 1999 Ford Explorer lost heater and A/C blower operation after fuses were swapped while diagnosing a turn-signal flasher. The owner replaced the blower relay and resistor but still has no power at the blower and hears clicking at the resistor when the fan switch is used. Advice is to verify fuse placement, check the blower fuse, and trace power from the switch and resistor back to the supply.

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