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Author Topic: Blower motor  (Read 5077 times)

Offline thelincolnguy

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Blower motor
« on: January 25, 2017, 07:17:19 am »
Hello all. Finally getting around to trying to fix the heat in my truck. When i bought the truck the blower motor worked in all speeds. Now it doesnt work at all. Replaced the relay on the heater box and checked the wiring. Have not checked the switch on the dash yet. Anyone have any other ideas?
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Thelincolnguy

Offline Irish_Alley

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Re: Blower motor
« Reply #1 on: January 25, 2017, 07:24:16 am »
is the blower motor getting power? apply 12v to the spade on the back of the motor and see if the motor is still good
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline thelincolnguy

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Re: Blower motor
« Reply #2 on: January 25, 2017, 10:27:18 am »
Just ran a jumper wire from batt to spade terminal. Does this mean the motor is shorted and needs replaced?
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Thelincolnguy

Offline Captain Swampy

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Re: Blower motor
« Reply #3 on: January 25, 2017, 04:06:09 pm »
Not necessarily, it grounds through the screws that mount it to the firewall. It could be a bad ground.
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1987  350TBI 700R4  4X4  4.56 gears  33" BFG All Terrain


http://forum.73-87chevytrucks.com/smforum/index.php?topic=32209.0

Offline Irish_Alley

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Re: Blower motor
« Reply #4 on: January 25, 2017, 05:33:55 pm »
did it spin?
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline thelincolnguy

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Re: Blower motor
« Reply #5 on: January 26, 2017, 07:45:23 am »
It did not spin. Ran power and ground straight to battery. looks like blower is bad.
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Thelincolnguy

Offline thelincolnguy

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Re: Blower motor
« Reply #6 on: January 30, 2017, 11:30:35 am »
Fixed the issue. The blower motor was shorted and had a mouse nest in it
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Thelincolnguy

Offline Irish_Alley

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Re: Blower motor
« Reply #7 on: January 30, 2017, 02:32:29 pm »
Nice and fix it without spending extra money on parts not needed
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If you can’t tell yourself the truth, who can you tell it to?~Irish_Alley

When you have eliminated the impossible, whatever remains, however improbable, must be the truth ~Sherlock Holmes

Offline thelincolnguy

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Re: Blower motor
« Reply #8 on: February 02, 2017, 12:01:42 pm »
Absolutely! Cost $16. Fan was easy to swap over too.
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Thelincolnguy
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