HVAC removal
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HVAC removal
Hello subie buddies. What is the procedure to replace the a/c heater control module on a 92 legacy awd 5mt wagon LHD. I have an intermittent ac and i think everything checks out but the unit. I'd like to try to substitute a good one in there before tearing in to deeper stuff.
1992 Legacy AWD Wagon 5MT. Original owner. BBS wheels, KYB shocks, Ceramic brakes. Loving every minute of it!
Re: HVAC removal
Tell us more about the issue, you might have a bad thermo switch.
Charles
90' White/Gray Outback DD workhorse (670,xxx) miles
92' Onyx Metallic (430,xxx) Wife's DD
68' Barracuda formula S 340 4spd coupe (ongoing project)
66' Mustang 2+2 4spd wife's (ongoing project)
90' White/Gray Outback DD workhorse (670,xxx) miles
92' Onyx Metallic (430,xxx) Wife's DD
68' Barracuda formula S 340 4spd coupe (ongoing project)
66' Mustang 2+2 4spd wife's (ongoing project)
Re: HVAC removal
Right now the ac wont even come on, It used to work intermittently. When it worked, it blew very cold and the compressor cycled properly. Sometimes it would start if I hit the ac buttons multiple times. I replaced the original controller with a used unit. No change, except being out $260 for the mechanic. I bypassed the pressure switches with no change. The compressor fires up when jumped to the battery. All fuses check out. I bought a new relay and swapped all 4 positions every which way with no effect. The R12 was topped off... no effect. Aack! I will be selling a great car soon because of it. Greetings from New Mexico.
1992 Legacy AWD Wagon 5MT. Original owner. BBS wheels, KYB shocks, Ceramic brakes. Loving every minute of it!
Re: HVAC removal
It sounds like the thermo switch, you can bypass it. I think the post is called (my ac clicks it self silly) http://bbs.legacycentral.org/viewtopic.php?f=10&t=36434
Charles
90' White/Gray Outback DD workhorse (670,xxx) miles
92' Onyx Metallic (430,xxx) Wife's DD
68' Barracuda formula S 340 4spd coupe (ongoing project)
66' Mustang 2+2 4spd wife's (ongoing project)
90' White/Gray Outback DD workhorse (670,xxx) miles
92' Onyx Metallic (430,xxx) Wife's DD
68' Barracuda formula S 340 4spd coupe (ongoing project)
66' Mustang 2+2 4spd wife's (ongoing project)
Re: HVAC removal
Could be,,, I read the whole string of posts. Symptoms are not the same at all, No rapid cycling. It either works or not. I have a used control unit on the way, If that doesn't do the trick, I'll pull the glove box and look at the thermo sensor. That is if I don't sell the car first.
1992 Legacy AWD Wagon 5MT. Original owner. BBS wheels, KYB shocks, Ceramic brakes. Loving every minute of it!
Re: HVAC removal
Pulling the HVAC controller is not hard and should take you about 1hr, the first time is a learning experience.
1) pull the front bezel off around the radio.
2) remove the instrument surround trim, ( dropping the steering column makes it easer, but not required)
3) remove the 4 screws and pull the unit toward you and unplug the wiring.
4) remove the cable for the blend door from under the dash (pull firmly it will pop out).
5) then it will pull out with the cable.
1) pull the front bezel off around the radio.
2) remove the instrument surround trim, ( dropping the steering column makes it easer, but not required)
3) remove the 4 screws and pull the unit toward you and unplug the wiring.
4) remove the cable for the blend door from under the dash (pull firmly it will pop out).
5) then it will pull out with the cable.
Charles
90' White/Gray Outback DD workhorse (670,xxx) miles
92' Onyx Metallic (430,xxx) Wife's DD
68' Barracuda formula S 340 4spd coupe (ongoing project)
66' Mustang 2+2 4spd wife's (ongoing project)
90' White/Gray Outback DD workhorse (670,xxx) miles
92' Onyx Metallic (430,xxx) Wife's DD
68' Barracuda formula S 340 4spd coupe (ongoing project)
66' Mustang 2+2 4spd wife's (ongoing project)