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2001 Buick LeSabre AC Blower

4 messages,  Last post on Sep 25, 2009 at 11:17 AM

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#1 of 4 2001 Buick LeSabre AC Blower by cityslicker2 Aug 05, 2008 (7:42 pm)
I turn my AC on and the fan decides to turn on about 5 minutes later sometimes longer.... whats going on? Its 105 degrees here in Texas. The AC comes out ice cold when it wants to. AC is working intermittently. Can anybody give me any suggestions or no the answer?   Thank you, Eileen Replies to this message: imidazol97 (Aug 06, 2008 4:35 am) cityslicker2 (Aug 21, 2008 7:48 pm) xfilesalan (Sep 25, 2009 11:17 am)
#2 of 4 Re: 2001 Buick LeSabre AC Blower [cityslicker2] by imidazol97 Aug 06, 2008 (4:35 am)
Replying to: cityslicker2 (Aug 05, 2008 7:42 pm) You either have a blower motor that is not making contact or has gone bad or the other possibility is the blower control module which is the electonics that controls the blower motor speed. I have to check my service manual to be sure the nonautomatic air conditioning uses the blower control module which the dual control auto air does (the one with the digital temperature readout).   The hush panel above the passenger feet should be taken out. When the blower won't turn, try hitting on the blower motor area to vibrate it. It a round item maybe 6 inches in diameter that is a circle in a horizontal plane on the bottom of the heater AC unit. A worn one may make contact again with the vibration and that may be happening when you start driving. I have even read of someone taking the blower apart after removing it (5 screws?) and finding a contact inside wasn't made well, repairing that, and using the same blower motor.   The blower control module tends to fail in strange ways. Follow the power lead from the blower motor a few inches to where it connects to a small unit that is actually sticking into the air stream inside the heater case to keep it cool. Those are available from some various auto places for parts as well as the dealer and junkyards if you wish.   If you have the manual AC unit try turning the fan speed on high. The standard unit USED to use a resistor set where the resistors could break and sometimes make contact again. The resistors get power through a relay which also might fail. With that setup the high speed is a direct lead from the battery through another relay so usually the high speed would work when the lower speeds won't.   But don't hold me to the description for the resistors because those were used before the leSabre was built on the same chassis as the Seville and Aurora starting on 2000. I'll have to look at my service manual. Replies to this message: cityslicker2 (Aug 21, 2008 7:48 pm)
#3 of 4 Re: 2001 Buick LeSabre AC Blower [imidazol97] by cityslicker2 Aug 21, 2008 (7:48 pm)
Replying to: imidazol97 (Aug 06, 2008 4:35 am) Thank you very much for your time and detailed suggestions on how to trouble shoot. Your a good guy! I will let you know how it turns out.   Eileen {smiles}
#4 of 4 Re: 2001 Buick LeSabre AC Blower [cityslicker2] by xfilesalan Sep 25, 2009 (11:17 am)
Replying to: cityslicker2 (Aug 05, 2008 7:42 pm) HI, I had the same problem on my 2002 blower motor. I would beat on the dash and it would start up. Got tired of that so I took the blower motor out and took it apart and found black soot pluging up the works. Cleaned it out put back together now works great........Alan................Note the blower motor was made in Korea !!

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