A/C Heater Question (1 Viewer)

Joined
Mar 18, 2005
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1,813
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Charles Town, WV
 
Are there any bad implications if I adjust the valve on the firewall to get cold air? Is my heater relay is gonna break? I need a new A/C amplifier, at least that's the conclusion I had come to after troubleshooting my "no under dash Fan issue"; and just haven't had the time to order it yet. So all through the winter my front heater has been "on" by default. Now that the weather is getting warmer, I need to be able to change settings some how so I don't get heat seizure while driving :). I was thinking of pulling that cable from the valve prong/hook and move it all the way to the other side to get cold air. What I am worried about is whether or not this is gonna screw up some thing else; like the heater core or some thing electric.

Thanks in advance for the input. :cheers:
 
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Joined
Jan 16, 2007
Messages
660
Location
Austin, TX
I can't see why you couldn't move it over and unplug the servo motor that adjusts the water flow so it doesn't default back to hot.
 
Joined
Mar 18, 2005
Messages
1,813
Location
Charles Town, WV
 
Yeah, i was thinking the same thing; except the survo motor part. So that's the bugger that controls the heat. I'm gonna look into it. Thanks.
 
Joined
Oct 4, 2006
Messages
21,802
Location
Seattle, WA
 
 
Question... if you were to just remove the water valve and run a straight line to it would this make the air cool???

I have a situation where all I get is cool air. My core isn't leaking, i've flushed the system but when I turn on the front heater all I get is cool air??
 
Joined
Jan 16, 2007
Messages
660
Location
Austin, TX
I had that problem with both my 91's. One was a busted (fell apart) thermostat, it never overheated though. On the other the core was very dirty. I took the hoses off and hooked up the garden hose straight to it to flush it. I changed directions a few times. It blew out some nasty stuff. Problem solved, both times.
 
Joined
Oct 4, 2006
Messages
21,802
Location
Seattle, WA
 
 
:DYeah I figured out that I wasn't "reverse" flushing it the first time so I reverse flushed it and a lot of rusty water came out.... I have a little heat now so i'm going to continue to flush it from both sides a few more times.
 

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