Heater blower motor??? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

thenormans05 · 07-01-2012, 07:27 PM

I wanted to see if someone could help me! I have some kind of problem with my heater blower motor, I can not get it to come on. I have check the wire coming out of the firewall and it's reading 12 volts. I thought that maybe the motor was bad so I went and replaced it. So what am I doing wrong? Thanks in advance. I also just ran a hot wire from the battery to the new and old motor but the motor will not turn
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**omodified** · 07-01-2012, 10:27 PM

I may be wrong here but the blower motor is a one wire, so the housing has to be grounded for it to work. Here is a picture of mine after I replaced my blower motor. Notice the ground wire coming from the blower motor.

aussiejohn · 07-02-2012, 12:23 AM

It's exactly the same on a mid seventies Corvette, only you GOTTA have an earth with a fibreglass firewall.

Regards from Down Under. [IMG]IMGP4413.JPG[/IMG]

aussiejohn

aussiejohn · 07-02-2012, 12:35 AM

It's exactly the same on a mid seventies Corvette, only you GOTTA have an earth with a fibreglass firewall.

Regards from Down Under. [IMG]IMGP4413.JPG[/IMG]

aussiejohn

aussiejohn · 07-02-2012, 12:36 AM

Sorry about that, I'm trying to post an avatar and pressed the wrong button. I'll persevere.

Regards from Down Under.

aussiejohn

thenormans05 · 07-02-2012, 07:59 PM

Thanks y'all that's what I was. It had no ground wire. Working like a dream now
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07-01-2012, 07:27 PM	#1
thenormans05 Registered User Join Date: Jul 2009 Location: Tyler, Tx Posts: 38	Heater blower motor??? I wanted to see if someone could help me! I have some kind of problem with my heater blower motor, I can not get it to come on. I have check the wire coming out of the firewall and it's reading 12 volts. I thought that maybe the motor was bad so I went and replaced it. So what am I doing wrong? Thanks in advance. I also just ran a hot wire from the battery to the new and old motor but the motor will not turn Posted via Mobile Device

07-01-2012, 10:27 PM	#2
omodified Senior Member Join Date: Jul 2010 Location: Race City U.S.A. Posts: 1,010	Re: Heater blower motor??? I may be wrong here but the blower motor is a one wire, so the housing has to be grounded for it to work. Here is a picture of mine after I replaced my blower motor. Notice the ground wire coming from the blower motor. __________________ Board Member #87725 My build thread... http://67-72chevytrucks.com/vboard/s...d.php?t=813848 Last edited by omodified; 07-01-2012 at 10:47 PM.

07-02-2012, 12:23 AM	#3
aussiejohn Registered User Join Date: Jul 2011 Location: Highett, Victoria Posts: 68	Re: Heater blower motor??? It's exactly the same on a mid seventies Corvette, only you GOTTA have an earth with a fibreglass firewall. Regards from Down Under. [IMG]IMGP4413.JPG[/IMG] aussiejohn

07-02-2012, 12:35 AM	#4
aussiejohn Registered User Join Date: Jul 2011 Location: Highett, Victoria Posts: 68	Re: Heater blower motor??? It's exactly the same on a mid seventies Corvette, only you GOTTA have an earth with a fibreglass firewall. Regards from Down Under. [IMG]IMGP4413.JPG[/IMG] aussiejohn

07-02-2012, 12:36 AM	#5
aussiejohn Registered User Join Date: Jul 2011 Location: Highett, Victoria Posts: 68	Re: Heater blower motor??? Sorry about that, I'm trying to post an avatar and pressed the wrong button. I'll persevere. Regards from Down Under. aussiejohn

07-02-2012, 07:59 PM	#6
thenormans05 Registered User Join Date: Jul 2009 Location: Tyler, Tx Posts: 38	Re: Heater blower motor??? Thanks y'all that's what I was. It had no ground wire. Working like a dream now Posted via Mobile Device

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