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Buick LeSabre Heating / Cooling

100 messages,  Last post on Nov 12, 2009 at 7:48 PM

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What is this discussion about? Buick LeSabre, Heating / Cooling

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#28 of 100 No drivers side AC by towney Aug 28, 2008 (12:50 pm)
2000 Le Sabre with just the passenger side AC blowing cold air. It seems when the AC is first turned on the the drivers side starts to blow cold but turns to warm air. I have read here about thew acuators but for the life of me i can't seem to find what I am looking for. Any suggestions on a fix FYI this has seperate warm or colder control on the passenger side located on door panel. Freon level is normal. Replies to this message: keaco (Sep 02, 2008 12:43 pm)
#29 of 100 Re: 2000 LaSabre dual climate control [imidazol97] by keaco Sep 02, 2008 (12:23 pm)
Replying to: imidazol97 (Aug 23, 2008 8:55 am) Thanks for the heads up on the low freon charge. I did not even consider that as the problem, I recharged the system and it works like a champ. Thanks again! Replies to this message: imidazol97 (Sep 02, 2008 2:01 pm)
#30 of 100 Re: No drivers side AC [towney] by keaco Sep 02, 2008 (12:43 pm)
Replying to: towney (Aug 28, 2008 12:50 pm) I was experiencing the same issue. Cold on passenger side and hot on the drivers side with the dual climate control system. Thanks to the suggestion of one the on-liners, my problem has been resolved. The AC compressor was not short cycling like they normally do on a low charge, but was running continuously. I had used only the low pressure gauge on my manifold set and it appeared to be normal between 40 to 45 psig, but then after a second look I hooked up both guages and found the freon charge was low and almost flat. I weighed in the correct amount of freon and that has taken care of the problem. I hope this helps you solve your problem!
#31 of 100 Re: 2000 LaSabre dual climate control [keaco] by imidazol97 Sep 02, 2008 (2:01 pm)
Replying to: keaco (Sep 02, 2008 12:23 pm) Thanks for coming back and letting other users know what worked on your car. It will help others.
#32 of 100 2003 LeSabre AC problem, blower works intermittently, dealer can't fix by peanut12 Sep 30, 2008 (5:11 pm)
I have a 2003 Buick LeSabre with an air conditioner problem that the dealer has not been able to repair.   The air conditioner blower rarely comes on when the car is started but after several minutes, sometimes nearly an hour it will began to work.   On other times when it is not working I can make a sharp turn either clockwise or counter clockwise and the blower will begin to work.   When the blower is not working and I drive over a rough stretch of road it will begin to work.   When the blower is working and I stop the car, the blower will slow down almost to the point of stopping.   When driving and the blower is working, it surges, i.e. varies rpm for no apparent reason.   Once the blower begins to work, it will continue to work until I turn the car off.   Any ideas on how I can get the air conditioner repaired? Replies to this message: imidazol97 (Sep 30, 2008 6:18 pm) peanut12 (Oct 01, 2008 4:18 pm)
#33 of 100 Re: 2003 LeSabre AC problem, blower works intermittently, dealer can't fix [peanut12] by imidazol97 Sep 30, 2008 (6:18 pm)
Replying to: peanut12 (Sep 30, 2008 5:11 pm) Has the blower motor been replaced? Otherwise it sounds like a contact in a connector somewhere along the line. That would require tracing and checking them all.   I recall someone who had an erratic blower motor on the same type car after 2000+ and he tookthe motor apart and found a contact was not quite long enough inside the motor. He rebuilt the contact and it worked happily ever after. He felt the motor itself was poorly engineered and that led to the contact wearing too much too early.   He hiimself is an engineer.   That story is why I asked if you had replaced the blower motor. It's inside the car and removed from under the passenger side of the dash. If I recall it has 5 or so screws holding it in place and comes out with a tight fit but is doable. Replies to this message: peanut12 (Oct 01, 2008 4:18 pm)
#34 of 100 Re: 2003 LeSabre AC problem, blower works intermittently, dealer can't fix [imidazol97] by peanut12 Oct 01, 2008 (4:18 pm)
Replying to: imidazol97 (Sep 30, 2008 6:18 pm) No, the blower motor has not been replaced.   I'm disappointed that the Buick technicians have not been able to repair the problem.   Is there some place I can check to see if other owners have the same problem?
#35 of 100 need help by taa36 Dec 02, 2008 (7:54 pm)
I changed my battery then my heater quit working on my 98 buick lesaber, the heater display flashes and no heat comes out, fan still works but dose not blow through vents. Can anyone help??? thanks Replies to this message: imidazol97 (Dec 03, 2008 5:26 am)
#36 of 100 Re: need help [taa36] by imidazol97 Dec 03, 2008 (5:26 am)
Replying to: taa36 (Dec 02, 2008 7:54 pm) Is the air coming out the defroster vents?   That would indicate there's a vacuum problem. When there's no vacuum the default is defrost for safety to be able to clear the windshield.   You can check the vacuum line (black plastic, 1/4 in) that goes to the vacuum tank in front of the right front wheel behind the headlights. You have to be on the gound looking up to find it. With the motor on or just turned off pulling off the connector should give a whoosh as air rushes in. It should hold vacuum for 30 seconds after motor is off (or more).   You should be able to switch buttons on the controls inside with the motor running and hear the vanes inside the box move; same if motor just turned off so it's easier to hear the movement noises.   The flashing is most likely because you didn't turn off the heater controls with the switch ON before you disconnected the battery. The unit does a check for positions of the vanes and it probably cracked the actuator gears as it went full off and then full on.   BUT first find the vacuum. The source is next to the big hose that goes to the brake booster on the firewall; the big hose connects to the intake manifold on the backside and if I recall the little tube connects beside it. Follow that black plastic vacuum tube to the Y connector next to the AC dryer. You may have to take off the cover over the relay center that has a couple of clips holding it; it covers the area you want to look at. The vacuum line runs through bundles with the electrical wires so you can't see it all.   The Y sends the line to the vacuum storage up front and the other side goes to the inside of the car. Most likely your problem is in the front of the car, not inside.
#37 of 100 94 LeSabre Heater /AC fan won't work by billnmd2006 Dec 01, 2008 (5:40 am)

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