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1497 messages,  Last post on Aug 13, 2009 at 5:54 PM

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#1495 of 1497 2003 LeSabre AC/Heater Fan Problems - Need Help by mariannesam Jul 30, 2009 (4:28 pm)
Having a problem with automatic air with digital readout system. The fan does not come on most of the time until 5 to 20 minutes later. Not sure if controller problem, fan motor failing, or connection/cable. When it does blow, it seems to sputter sometimes - when its set to hi speed, it sounds like it slows down for a second sometimes.   Any ideas on usually why a very long delay with the fan coming on?   If fan, how do I get to it or is it easy?   If control module, how do I pull it out?   Thank you for your help in advance. Replies to this message: imidazol97 (Jul 30, 2009 6:52 pm) mariannesam (Aug 13, 2009 5:54 pm)
#1496 of 1497 Re: 2003 LeSabre AC/Heater Fan Problems - Need Help [mariannesam] by imidazol97 Jul 30, 2009 (6:52 pm)
Replying to: mariannesam (Jul 30, 2009 4:28 pm) Probably a case of worn brushes. I've also seen a report that a ground wire/strap for the motor doesn't connect to the housing properly.   Try turning the key to ON. If the fan doesn't start like it should, tape the bottom of the HVAC box with the toe of your shoe. The blower motor is on the right side of the hump, but any vibration will cause it to make contact.   The blower is held in by three screws. Pull the carpet back toward the seat; moving it allows more room to wiggle the blower and motor out. The hush panel under the passenger side dash comes off first with a few screws. Replies to this message: mariannesam (Aug 13, 2009 5:54 pm)
#1497 of 1497 Re: 2003 LeSabre AC/Heater Fan Problems - Need Help [imidazol97] by mariannesam Aug 13, 2009 (5:54 pm)
Replying to: imidazol97 (Jul 30, 2009 6:52 pm) Thanks imidazol97. It was the blower module.   After I turned the key on and made sure the fan was set on high, no air was coming out and no sound of the blower. I tapped the blower area under the glove box near the fire wall and the fan came on!   Removed the hush panel and blower module. Either the motor was worn or internal connections bad. External connectors looked good. Inside there was some dirt (I assume from the motor cooler/heater tube port even though I change/clean the cabin filter often - can see the filter with the blower out) and maybe the brushes were a little worn, so after about 80k miles, just replaced the blower module from Autozone (~$130) with lifetime warranty. A few screws like you said and it was pretty easy - did not even have to move the carpet out of the way.

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