A/C & heater control vacuum line info
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Thought I did. Sorry. My name is Walter. I like long nights in the garage. I’m a cancer. Lol. Currently working on a 82 elcamino and doing a little to my 72’ cutlass supreme. Looking forward to learning from you all here. This is my first Chevy engine of my own to do. For some reason it’s not letting me add a pic frustrated now. keeps telling me file to large. I'll have to work on that.
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Welcome, Walter.
Nice to have aboard. Hope you enjoy the forum and what it has to offer. There's a good, friendly bunch of guys here, and more than willing to help answer questions, etc.
I’m a new member my name is Rod’Darius I’m 16 years old. I have a 1985 Cutlass with a/c issues it’s blowing cold on the floor & in the dash nothing coming through the vents. I took the glove box out I see a door it opens & closes. I make sure the blend door was open by hand. I nothing the thing is broken when I turn it to heat it finest move. Not sure how to repair that. I see the cable is good just don’t know how to hook it back on.
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I think it may be this: http://www.rockauto.com/en/catalog/...ir+conditioning,a/c+vacuum+control+valve,7036
The one on my '89 TTA went bad and they aren't $53, they are unobtanium.
I fixed it with a 1/2" 8-32 Screw, Nylock nut and a washer. Costs $1.18 to fix 8 cars @ Menards.
If you are getting vacuum inside the car, its most likely the vacuum control valve.
The vacuum control valve is made out of two cheap plastic piece that are snapped together. The tabs of the snap get brittle and break, and the two discs can't hold vacuum. You can hold the discs together with an '8-32 screw/nylock nut. Tighten until it just has enough tension to hold vacuum, but allow for free movement.
Thanks so much I had a used contact panel I took that part off out it on mine & withing minutes I had air coming out the vents. Now I need help getting the air to blow on high. I changed the fan motor, high low fan relay & another thing by the fan motor. It’s still not blowing on high. I tried the used control panel it’s still won’t blow on high. Any info would be on getting this solved would be greatly appreciated.
high speed is direct battery power. idk if you have four season ac or not, but the thick red wire is still in the same location.
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Looking at the circuit diagram, the most likely culprit for the high speed blower not working is the high speed blower relay, either contacts or power to the relay or the relay itself,
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