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Search Auto Parts Search 99 Lesabre cold air only on driver side Sign up here!   Email This Post Auto Repair Home>> Automotive Repair>> AC Auto Repair Help Forum shades New User May 29, 2008, 4:19 PM Post #1 of 6 (3171 views) 99 Lesabre cold air only on driver side Sign In Hey guys, I'm new to the site and looking for help. I just bought a 1999 Buick Lesabre and the AC only blows cold air out the drivers side. The passengers side blows hot air, even if you adjust the climate control on the passenger door all the way to cooler. Could this be a problem with the diverter door? or Low pressure in the system? Any ideas would be appreciated. I do have SOME mechanical knowledge, but little to nothing with AC. Thanks in advance. Tom Greenleaf Ultimate Carjunky / Moderator May 30, 2008, 4:06 AM Post #2 of 6 (3165 views) Re: 99 Lesabre cold air only on driver side Sign In Does this have dual zone air meaning two settings for temps wanted? T shades New User May 30, 2008, 9:49 AM Post #3 of 6 (3161 views) Re: 99 Lesabre cold air only on driver side Sign In Yes, you can set the temp on the main control unit. Then the passenger can adjust their side using a warmer/cooler button on the passenger door. Tom Greenleaf Ultimate Carjunky / Moderator May 30, 2008, 10:44 AM Post #4 of 6 (3159 views) Re: 99 Lesabre cold air only on driver side Sign In Hmmm? I have to say I'm not at all familiar with what that is. It may be a diverter door right near that vent and fairly simple I hope. Famous last words. Can you get a look even if thru glovebox at what is happening to change the temp - cable to a door or electric? If someone else here doesn't have more of a clue for you the folks at ACSource.com do a ton more AND on older GMs than I would know about that did do tricks with the temp controls. http://acsource.net/...644d7d8eeeb77edc058a << Try them there if needed. It's a sign-up site like this one that just targets A/C and just happens to be very strong with GM cars..... T shades New User May 30, 2008, 5:38 PM Post #5 of 6 (3155 views) Re: 99 Lesabre cold air only on driver side Sign In I haven't had any time to pull it apart, I'm working this weekend. I'll start on Mon and let you know how I made out. Thanks for the help so far. brbettge User May 31, 2008, 5:15 AM Post #6 of 6 (3150 views) Re: 99 Lesabre cold air only on driver side Sign In My first thought on this is the diverter door motor on the passenger side temp control has gone bad. it will be a small electric motor attached to the door. the other possibility will be the switch itself. as a matter of fact I would check the switch first since it will be much easier to access altho probably not as inexpensive as the motor.As for the procedure to check the switch and/or the location of the motor; your best bet is to check with autozone to access their data base for instruction. Tom can turn you on to another ac website for further info as well. If the air is cold on one side the system pressure is fine or all air would be warm. This is definately a dual zone control problem. Never did like under dash work myself...door panel work was never too bad tho. good luck with the diagnosis and repair! rick   Email This Post   Automotive Repair     Auto Body Repair and Refinishing     Heating or AC Issues     Electrical and Wiring     Brake Systems     Car Stereo Repair Advice     General Discussions     Car Making Funny Noises     Engine Fault Codes     Engine Troubles     Exhaust Systems     Steering and Suspension     Transmission Troubles     Tricks of the Trade Automotive World     General Discussions     Antique Car Talk     Car Shows and Events     The Bargin Bin     Motor Vehicle Inspection     Car Care Tips     Traffic Tickets     Gasoline, Motor Oils, Concept Cars and Engines     Auto Insurance, Financing, Leases, Warranties Truck Repair     General Discussions     Truck Engine Repair     Truck Suspension Repair Motorcycle Repair     General Discussions     Motorcycle Engine Repair CarJunky     Open Posting     Board FAQ's     New Board Suggestions

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