_:n7c126aa368894a74a05a5e604ed0d671xb4
<http://schema.org/text>
"As a leSabre owner of a couple of model years and a do-it-myselfer, I think I can help here based on experience and reading millions of posts by other DIYers on PonatiacBonneville forums--the same H-body as the leSabre.\n\nThis is a symptom of the blower itself giving problems in some applications. I didn't check the video, but I assume it shows how to access the blower motor and I assume the blower motor is on the underside of the interior HVAC box.\n\nLocate the blower itself. When you get in the car, turn the key to RUN and if the blower motor doesn't operate, tap the blower motor itself with the tip of your shoe or your hand. If the vibration makes the blower start working, that means it's the contacts, commutator and brushes, inside the blower motor. You may have to move to the passenger seat to get good contact\n\nAnother diagnosis for this in the typical leSabre/Bonneville application was that the blower changed how it ran or didn't run when the car hit a sharp bump or vibrated from a tar strip on the road, e.g.. The vibration caused the brushes to make contact again. \n\nOccasionally a leSabre owner would find the contacts for the blower control module plug would be burned and making poor or no contact until vibration made the metals contact better. \n\nIf the HVAC is auto temperature control, the BCM itself is electronic rather than a resistor series like used on simpler, older systems and it can also give changing blower speeds or no blower, but doesn't this in odd ways related the electronic components and heat status. \n\nThe blower motor itself is #22 in the diagram. There may be a plastic layer for sound deadening to take off to get to it, but the circulat part of the blower motor may not be covered giving access with the noise shield in place. Buy a quality replacement. I'd suggest rockauto.com, but local stores will have replacements as well.\n\nSee notes below diagram...\n\n\n\n\nI am assuming the Regal used the same blower motors as the leSabre/Bonnevilles used. From the diagrams on \nhttp://www.wholesalegmpartsonline.com/showAssembly.aspx?ukey_assembly=400486&ukey_make=1022&ukey_model=14449&modelYear=2002&ukey_category=19390&ukey_trimLevel=15042\n\nhttp://www.wholesalegmpartsonline.com/productSearch.aspx?&ukey_make=1022&modelYear=2002&ukey_model=14449&ukey_trimLevel=15042&ukey_driveline=0&ukey_Category=19390&numResults=50&sortOrder=Relevance&isOnSale=0&isAccessory=0&isPerformance=0&searchTerm=\n\nI suspect some have resistor like switches with 3 discrete speeds. Others have the continuously variable electronic controlled fan speeds (BCM) where you use an electronic button to change speeds, but in auto mode the car has many speeds available based on settings and HVAC load.\n\nThe blower motor contact problem sometimes gave a no run, normal speeds, and strange in between speeds due to poor contact.  When I took my blower apart after replacing it, one of the two contact brushes was sticking in its slide holder. So that meant less pressure, poor contact, and arcing which burned the commutator contact area. \n\nReplacing the blower motor yourself is relatively easy. The motor with squirrel cage attaches can be wiggled out in some way. The carpet layers had to be pulled back from the toe area to leave a little extra room making it easier on the leSabre I had. The motor is heavy when you're supporting it while hanging off the edge of the front seat upside down or lying on the floor reaching in on your side. \n\nThe rubber tube has to be put back on. It allows the air being pushed by the squirrel cage into the box to flow back over the commutator and the motor for cooling."
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