blower motor
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Senior User
Joined: Nov 2010
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From: Chesapeake Va.
blower motor
Where can I tie in to "hot wire" test my fan motor?
I have power to the switch and thru it to all posts, onward to the resistor and thru it as well even have power to the black with yellow strip going into the blower box. Is the other equal in size black wire the ground side of the fan motor? I ask these questions cause I have not taken the cover off under the dash to the blower motor but I can probe them with a test light.
Thanks
I have power to the switch and thru it to all posts, onward to the resistor and thru it as well even have power to the black with yellow strip going into the blower box. Is the other equal in size black wire the ground side of the fan motor? I ask these questions cause I have not taken the cover off under the dash to the blower motor but I can probe them with a test light.
Thanks
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Senior User
Joined: Nov 2010
Posts: 373
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From: Chesapeake Va.
Got it and maybe this will save someone else some trouble and possibly your truck!!!
Could trace power all the way to the a/c box under dash last nite but did not have time to remove the cover until 2nite.
Got the cover off and HOLY DONUTS the connector from orange and black (fan pigtail) to the harness of black and black was melted and distorted. Wiggled a bit and the fan came on but that connector was a hot potato. Cut it out soldered in some new connectors powered her up and she ran cool as a cucumber.
If I would have lost my money pit to a fire.........
Now why do you guys think it did not blow the fuse, I know the cause of the melt down would be loose connections but with kinda current draw shouldn't the fuse have popped?
By the way this was/is the link/question that got no looks and made me do the dirty neighbor trick.
Have you seen how many of US pervs have looked??????
Could trace power all the way to the a/c box under dash last nite but did not have time to remove the cover until 2nite.
Got the cover off and HOLY DONUTS the connector from orange and black (fan pigtail) to the harness of black and black was melted and distorted. Wiggled a bit and the fan came on but that connector was a hot potato. Cut it out soldered in some new connectors powered her up and she ran cool as a cucumber.
If I would have lost my money pit to a fire.........
Now why do you guys think it did not blow the fuse, I know the cause of the melt down would be loose connections but with kinda current draw shouldn't the fuse have popped?
By the way this was/is the link/question that got no looks and made me do the dirty neighbor trick.
Have you seen how many of US pervs have looked??????
Junior User
Joined: Nov 2010
Posts: 60
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I talked to two different Ford guys who said that the heater motor circuit was the cause of many fires in the early/mid 70's Ford trucks. When I bought my '75 truck, the heater fuse had tinfoil wrapped around it. I removed it, and the blower would barely run. Fortunately, I was fooling with it in the shop at night, and I could see the arcing around one end of the fuse holder. Removed everything and cleaned up all the connections, and now the blower works as it should.
I'm glad you found the loose connection before it went up in flames. A local guy lost a nice Camaro in a garage fire just last week. The newspaper said that the only damage was to all of the windows, and of course the paint. . .
Sick. . .
Paul
I'm glad you found the loose connection before it went up in flames. A local guy lost a nice Camaro in a garage fire just last week. The newspaper said that the only damage was to all of the windows, and of course the paint. . .
Sick. . .
Paul
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