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Buick LeSabre, Heating / Cooling
#249 of 278 2004 Buick LeSabre - AC Drain Plug clogged...
Aug 30, 2012 (9:20 am)
Hello. I was following the deamer1 and imidazol97 conversation from a couple years ago (July 2010), but I can't seem to find the drain plug on a 2004 LeSabre. I was having all the same issues that Deamer1 was. EXACTLY the same - wet floor, AC draining on the passenger's side. BUT, I can't seem to find the drain. I look from under the hood to under the car, and I cannot find a tube coming out of the dash area. I was also reading another blog that talked about a 2004 Ranier, and I couldn't find the drain tube there, either.
It was interesting, though... when I jacked up the car to look underneath, I found a weird little tube sticking out of the bottom of the back of the car, by the rear passenger wheel. It began to leak a lot of water after jacking the car up. I'm just going to guess (I am by no means an auto mechanic, but some stuff makes sense to me! ), but I think that, because the battery is under the back seat (what a weird place for a battery!), that little drain helps to keep water from hangin' around by it? Correct?
So, I guess a couple things. 1. Where's the little drain plug thingy? 2. What's that little drain thing by the rear passenger wheel that kicked out water when I jacked up the car?
Thanks for your help!
#250 of 278 Re: 2004 Buick LeSabre - AC Drain Plug clogged... [dagenester]
Aug 30, 2012 (11:00 am)
Do you have a sunroof? Those have tubes that drain in front of each rear wheel and on each side of the front they come down through the A-pillar and drain out somewhere right under the A-pillar area through the floor of the car. People get at them in the corners inside the passenger compartment. They become disconnected there or plugged.
The AC drain is just as Deamer described. I haven't looked for mine for a long, long time. Look inside at the HVAC box sitting on the hump and then connect that with a drain out a lower part that goes through the floor into the firewall area near the bottom.
#251 of 278 Re: 2004 Buick LeSabre - AC Drain Plug clogged... [imidazol97]
Aug 30, 2012 (12:49 pm)
Thank you for your rapid reply! No, I have no sunroof. It's the AC thing. Would the drain be in the same spot in a 2005 as it would in a 2004? Also, when you say "look inside at the HVAC box sitting on the hump", is that from Inside the car that I do this? Do I need to remove the Glove Box and stuff? (non-mechanic here... )
Also, the little drain on the back of the car - that was for the Sulfuric Acid fumes to escape. It was for the battery. The battery has a couple little tubes that are on either end, and then join in a T to the tube that goes out through the bottom of the car. There was water sitting in with the battery, thus the reason that it leaked water... DOH!
I ripped up some rug and started to let things dry... AT LEAST a gallon of water had to get mopped up! sheesh! I live in Arizona, so it is nice n dry here. I let the car sit in the sun with all the windows down, and I'll have to do this a lot over the next few days.
Ok, I'll look again for the little drain tube. Thanks for all your assistance!
#252 of 278 Re: 2004 Buick LeSabre - AC Drain Plug clogged... [dagenester]
Aug 30, 2012 (3:33 pm)
The AC drain will be in the same place.
As for the battery vent tube for the hydrogen and oxygen fumes while charging, it should be venting directlyl below the battery, not over by the passenger rear tire. And it should only have gases in it, no liquids like water.
Good luck with spending time under the car--remember use jack stands or ramps to hold car up to give room. Wait till hot parts cool to crawl under!
Oct 09, 2012 (8:49 am)
I'm having heater control problems on a 1999 LaSabre. I believe it to be a vacuum prob. I dropped the glove box. and found a vacuum manifold of some kind. It has orange,black, white and green tubes on one side with a pink fitting broke off. the other side has a pink tube shoved into the opposite side of the black line. no other tubes on that side. any thoughts or idea where i can locate a vaccum diagram?
#254 of 278 Re: heater prob [fasteddie8]
Oct 09, 2012 (8:58 am)
Are you describing a dual control system or the manual system without the digital readout?
#255 of 278 Re: heater prob [imidazol97]
Oct 10, 2012 (4:25 am)
dual control with digital display.
#256 of 278 2003 Buick Fan Control Module
Nov 17, 2012 (9:20 pm)
I have a 2003 Buick Lesabre Custom and the fan only works after hitting a bump.
Where is the module located, does it need replacing or is there a short?
Any help is appreciated.
#257 of 278 Re: 2003 Buick Fan Control Module [keji63]
Nov 18, 2012 (5:34 am)
fan motor is above passenger's left toes. You can see the round bottom of the motor throught the plastic sound shield under the dash. Tapping this area with your toe will sometimes start the motor again when the key is on.
The motor's brushes may be sticking in the channels, the motor just may not make contact, or the connect from the motor to the hvac box may be corroded from heat damage. You might check the connector after you take off the sound panel.
But 3 screws hold the motor up in place. IT's a medium job because you're lying on your back to reach under and work on it. It's fairly heavy to lift into place and get the 1 inch tube the carries air back to the motor for cooling it in place. But it's doable. Autozone had the replacement motors when I looked for mine.
#258 of 278 1997 Buick LeSabre
Feb 05, 2013 (5:31 pm)
I need your help. My 97 buick lesabre has no heat or ac the panel on the dash is completely dead no lights no response when buttons pushed. It is not climate control. I have been on this forum for several days trying to fix the problem. I have no power to the panel. I ran a by pass wire to the blower switch still no results all relays and fuses check good The controller under the dash with the vacuum lines has a 12 volt power wire and when it is plugged in there is about three to four votes that goes to the back of the panel to several wires. What else can it be? Oh I have tried another switch panel same results