1974 Checy Blazer A/C Blower wiring diagram needed

[callentine]

Hello! I'm trying to locate this diagram as a b-day present for my dad, who has given up on the hunt for it himself. After riding around in his no a/c truck this summer in Az, I decided to take matters into my own hands. If anyone knows how to acquire a wiring diagram for the a/c system on the 74-82 blazer your advice will be greatly appreciated! chevy has not been able to help thus far.

 

[chevyuser74]

i got a book with them in it but there were multiple a/c systems it could have in it , what do your a/c controls look like?

or just buy
http://cgi.ebay.com/ebaymotors/1974...001QQitemZ110274025730QQrdZ1QQsspagenameZWD1V

 

[dremu]

You might get lucky with a Chilton's or Haynes, but your best bet is gonna be the factory service manuals. Chevy doesn't sell them; most manufacturers don't, these days. They all farm them out, and most brands go to Helm ...

www.helminc.com

That said, EBay is a great place to look, as the set of books can go upwards of $100 if you buy them new.


OTOH, Helm has just the wiring diagrams for cheap, it seems ...

http://www.helminc.com/helm/product...ype=N&mscsid=7BKN7VW7E91R8MUKF3XV6V02P3HSAKQB

Must be a reprint, or something; my copy of the '74 electrics is like an inch thick.

But then they get $60 for the service manual proper, which is maybe only twice that thick.

http://www.helminc.com/helm/product...ype=K&mscsid=7BKN7VW7E91R8MUKF3XV6V02P3HSAKQB

-- A