A/C Heater Question (1 Viewer)

[Riad]

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.

 

[TX Cruiser]

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.

 

[Riad]

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.

 

[lt1fire]

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??

 

[TX Cruiser]

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.

 

[lt1fire]

Yeah 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.

 

[Michael Hanson]

Are you sure its not the fan?Ive never had an amp. go out,but Ive replaced about all my fans.I gen. get about 150,000 on a fan. mike