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09-16-2021, 08:50 AM
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#1 |
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Registered User
Join Date: Jun 2014
Location: CO
Posts: 749
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Blower motor wires
I am still working on ac system and my blower switch has three wires. My pigtail does not have the middle pigtail. The pictures I took from junkyard show 4 wires where do the four wires hook up to? This is a non AC truck so I thought it would be an easy hook up
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79 Chevy 2wd BIG10 350 TH400 |
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09-16-2021, 02:29 PM
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#2 |
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State of Confusion!
  
Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 47,223
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Re: Blower motor wires
Some trucks came with 3 wire and some 4 wire. I honestly don't remember what the connections for each are.
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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
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09-16-2021, 03:01 PM
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#3 |
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State of Confusion!
Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 47,223
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Re: Blower motor wires
This may help you.
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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
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09-16-2021, 04:34 PM
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#4 |
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Registered User
Join Date: Jun 2014
Location: CO
Posts: 749
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Re: Blower motor wires
Thanks Palf70step, I dont suppose you have any blower switch schematics without AC do you? I have a 79 truck with no AC and I am trying to install a old school A-R-A system now. Just thinking out loud but everyone of those wires running to switch are 12volts and regulated by the switch correct?
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79 Chevy 2wd BIG10 350 TH400 |
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09-16-2021, 05:27 PM
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#5 |
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State of Confusion!
Join Date: Jul 2002
Location: Gulfport, MS USA
Posts: 47,223
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Re: Blower motor wires
I could not find any in the electrical that said no AC. There is one that says HD heater and auxillary heater, but nothing that say regular/no ac
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Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God! |
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09-17-2021, 11:02 PM
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#6 |
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Moderator
 
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,977
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Re: Blower motor wires
The standard HVAC wiring is buried in the whole truck page.
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