BLH92SC400

Hello, I just purchased a 1992 SC400 w/ 63,000 miles. I have been driving it for about a month, and now I do not have any heat. When I turn the "auto" to HOT, the A/C comes on, but he fan turns off. It is going to start getting cold and I will need the heat. This is my first experience with a Lexus.....like the car, but cannot afford an expensive fix. Does anybody have any ideas?

PS...the engine temp gauge reads fine.

Thanks for the help!!
Brian

rpk2012

Hrmm, check all connections on ac headunit? Never heard of that issue while reading up on the tech.

Li Ls4

iTrader: (12)

here u go. https://www.clublexus.com/forums/per...rol-valve.html

louie1951

iTrader: (1)

heater control valve. fan may be a different issue.

1WILLY1

iTrader: (9)

63000 miles ---wow u did well on that purchase---may i ask how much u paid for the car?

And is it for sale lol?

Thanks

BLH92SC400

Yes, I am happy. I paid $6500.00. It is in very good shape!! do you still think I did ok?

BLH92SC400

Thanks Li Ls4, I finally got a chance to try your suggestion, and after switching the vacuum hoses I am getting warm in from the heat vents. I have not noticed any enging cooling changes, although when I turn the auto climate control to HOT the a/c light still comes on. Cannot figure this one out, but at least I have heat.

Thanks Again!!

MMCtuner

When in AUTO mode the a/c light goes on always, that´s not a problem to fix, is the way it works.
In AUTO mode when you put the heater to HOT and your fans don´t work, wait till the engine warms up and then they´ll start.