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#1
03-19-2008, 07:34 AM
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blend door, etc.
I own a custom shop in Memphis where I have built a fully functional prortotype mold for a cool replacement complete dash and I am now piping it for A/C, heat, def. I need a schematic that shows the proper operation of the entire system so that my plenims are properly placed for air flow. I do not even know at this point if the truck has a properly working system, therefore I can not test it. PS the entire dash is out but I have the controller hooked up and have access to all blend doors.
Last edited by chopshopboss; 03-19-2008 at 10:47 AM. 
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#2
03-19-2008, 09:39 AM
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Re: blend door, etc.
What year system?
__________________
Automotive A/C Engineer with: '99 IH 4700 Toy Hauler (2) '95 GEO Prizms both maroon '99 GMC Yukon '95 Chev 3500, 454 Dually Crew Cab- 145k miles- Wife's Camel trailer puller. '94 Astro- 370k miles '94 Firebird Formula- 5.7L 180k miles- gone- '92 Chevy Lumina Van 3.8L 264k '86 GMC S-15 - 2.8L 154k '87 Buick Park Ave . 187k '86 Buick Park Ave 3.8L 199k miles- gone '77 Chevy Vega- 2.5L 175k miles gone but not forgotten '68 Camaro 396 4 spd RS/SS -72k miles-
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#3
03-19-2008, 10:45 AM
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Re: blend door, etc.
It is a 1988 S10 Blazer
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#4
03-20-2008, 10:17 AM
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Re: blend door, etc.
A old factory manual from e bay or sometimes public libary has car repair info.
AZ web site has some repair All Data info. Most repair shops have repair programs on the computer that they can check and print out the info for you. Or a All data online one year sub has the vacuum and electrical stuff in it. http://www.alldata.com/products/diy/index.html
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Remember proper testing gives us the answer to many problems. MT
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#5
03-27-2008, 08:37 AM
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Re: blend door, etc.
Alright, I had to leave the Blazer for a while and work on 7 other cars. Now I'm back, I got a print-out both from ALLDATA and GM. I now understand the function of the system ( 1987 S10 Blazer) but I have found that I have no vacuum supply anywhere I know to look. Being that I am a fabricator and not a mechanic I need a crash course in origination and path of vacuum. I do understand that there is a resonator there to store , boost and regulate the vacuum supply but I do not seem to have any going into the resonator. Help!!!
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