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73-87 Chevy _ GMC Trucks => Interior & Equipment => Heating, Ventilation & Air Conditioning (HVAC) => Topic started by: cabrera13 on January 15, 2013, 08:06:39 pm

Title: a/c & heater problem
Post by: cabrera13 on January 15, 2013, 08:06:39 pm: the fan switch and temperature adjuster work on the temperature assembly, but when i switch it to any setting whether a/c, vent or defroster, its always blowing air on the ground. Is it the temperature assembly that could be broken? how can i fix this?
Title: Re: a/c & heater problem
Post by: bake74 on January 15, 2013, 08:28:47 pm: First off we need some details. Year and make of truck? My guess from what you wrote would be the cables that move the door between defrost, vent, or floor. Or the door itself is stuck/broken.
Title: Re: a/c & heater problem
Post by: bake74 on January 15, 2013, 10:14:56 pm: See if these will help.
Title: Re: a/c & heater problem
Post by: frotosride on January 16, 2013, 09:00:45 pm: Quote from: bake74 on January 15, 2013, 10:14:56 pm
See if these will help.
Bake....where in the world do you get these pdf's. are you scanning them in or do you have a whole manual in pdf format?
Title: Re: a/c & heater problem
Post by: cabrera13 on January 16, 2013, 09:30:31 pm: i hav a 78' c10
Title: Re: a/c & heater problem
Post by: bake74 on January 17, 2013, 06:36:46 am: I am scanning them in. Part of my Christmas present, was a couple cd's with manuals and overhaul manuals on them for our early trucks.
Title: Re: a/c & heater problem
Post by: VileZambonie on January 17, 2013, 06:50:19 am: Make sure the vacuum reservoir is hooked up under the hood
Title: Re: a/c & heater problem
Post by: frotosride on January 17, 2013, 08:35:13 am: Quote from: bake74 on January 17, 2013, 06:36:46 am
I am scanning them in. Part of my Christmas present, was a couple cd's with manuals and overhaul manuals on them for our early trucks.

Gotcha...if only I could teach the wife to shop like that for me.
Title: Re: a/c & heater problem
Post by: Captkaos on January 17, 2013, 01:58:55 pm: I will be uploading A LOTof manuals soon... Someone is scanning all of them and sharing with me.
Title: Re: a/c & heater problem
Post by: bake74 on January 17, 2013, 06:17:15 pm: Quote from: Captkaos on January 17, 2013, 01:58:55 pm
I will be uploading A LOTof manuals soon... Someone is scanning all of them and sharing with me.

That will be nice when you get them. If you need 74 - 76, that is the ones I currently are messing around with.
Title: Re: a/c & heater problem
Post by: Captkaos on January 17, 2013, 08:55:44 pm: Will do Bake!
Title: Re: a/c & heater problem
Post by: frotosride on January 17, 2013, 09:01:02 pm: This is already the best site for our particular taste of trucks but I think that will drastically put it over the top...love it Cap.
Title: Re: a/c & heater problem
Post by: cabrera13 on January 17, 2013, 09:10:20 pm: Quote from: VileZambonie on January 17, 2013, 06:50:19 am
Make sure the vacuum reservoir is hooked up under the hood

Not to be a pain in the ass aha,but hav no clue where that at
Title: Re: a/c & heater problem
Post by: Captkaos on January 17, 2013, 09:17:19 pm: to the right of the master cylinder, big round black ball...
Title: Re: a/c & heater problem
Post by: cabrera13 on January 18, 2013, 02:02:11 am: i checked and theres a little [wat seems to look lyk a hose mayb] hose disconnected
Title: Re: a/c & heater problem
Post by: bake74 on January 18, 2013, 07:06:14 pm: Quote from: cabrera13 on January 18, 2013, 02:02:11 am
i checked and theres a little [wat seems to look lyk a hose mayb] hose disconnected

Is there a spot on the vacuum reservoir that is missing a hose ?
Title: Re: a/c & heater problem
Post by: cabrera13 on January 18, 2013, 07:24:00 pm: I checked & yea I connected it & now its back to normal!
Title: Re: a/c & heater problem
Post by: bake74 on January 18, 2013, 07:34:05 pm: Quote from: cabrera13 on January 18, 2013, 07:24:00 pm
I checked & yea I connected it & now its back to normal!

Check off another problem down the drain. ;D
Title: Re: a/c & heater problem
Post by: cabrera13 on January 18, 2013, 10:48:15 pm: Yea thanks for the help!