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blower motor quit working
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pettitd1
Novice
Jul 4, 2012, 3:02 PM
Post #1 of 16
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blower motor quit working
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My 97 Buick Lesabre, 3.8 engine 120,000 miles
I shut the car off to fill with gas. Restarted car after filling and the blower motor failed to work. No prior problems. No noise, no prior problems. Acts like a fuse is blown. I checked all three fuse locations, the owners manual does not show a blower motor fuse, HVAC fuse is not blown. Is there a breaker or relay, and where is it located. thanks for any help you can give!! thanks dan
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Discretesignals
Ultimate Carjunky
/ Moderator
Jul 4, 2012, 3:09 PM
Post #2 of 16
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Re: blower motor quit working
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automatic or manual ac?
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
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Discretesignals
Ultimate Carjunky
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Jul 4, 2012, 3:15 PM
Post #4 of 16
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Re: blower motor quit working
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Probably would be a good idea to first check for power and ground to the blower motor at the blower connector. Should be easy to check on that design.
Sometimes for a quick check to see if you have a blower motor brush problem you can also try wacking on the blower motor housing with it turned on high. If the blower takes off when you wack it, you need another blower motor.
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jul 4, 2012, 3:16 PM)
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pettitd1
Novice
Jul 5, 2012, 8:43 AM
Post #5 of 16
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Re: blower motor quit working
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ok finally made it home, was out of state traveling, i rapped on the motor, but nothing happened, i just checked the voltage at the motor and there is none, i also checked the resister with all the springs on the back of it mounted in the air box and it looks ok.....so as of now, it is powerless with the key in the on position and control on high, any suggestions where to look next????
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Hammer Time
Ultimate Carjunky
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Jul 5, 2012, 8:52 AM
Post #6 of 16
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Re: blower motor quit working
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Check the fuses indicated at the top of the diagram.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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pettitd1
Novice
Jul 5, 2012, 9:34 AM
Post #7 of 16
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Re: blower motor quit working
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i checked all three fuses, they are good; the compressor is working, everything works except the blower motor
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Hammer Time
Ultimate Carjunky
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Jul 5, 2012, 9:41 AM
Post #8 of 16
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Re: blower motor quit working
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Check the Blower Motor speed relay.
I would try swapping it with the horn relay.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Jul 5, 2012, 9:48 AM)
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pettitd1
Novice
Jul 5, 2012, 9:47 AM
Post #9 of 16
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Re: blower motor quit working
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can you instruct me on how to test it please, i have a multi-meter
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Hammer Time
Ultimate Carjunky
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Jul 5, 2012, 9:58 AM
Post #10 of 16
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Re: blower motor quit working
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Swap it with the horn relay if they look the same.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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pettitd1
Novice
Jul 5, 2012, 10:18 AM
Post #11 of 16
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Re: blower motor quit working
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swapped the horn relay with speed relay horn works fine, no blower yet; i see there is a blower relay also, but there is not a relay to swap with it has five pins, is there any way to check it???
(This post was edited by pettitd1 on Jul 5, 2012, 10:22 AM)
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Hammer Time
Ultimate Carjunky
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Jul 5, 2012, 11:19 AM
Post #12 of 16
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Re: blower motor quit working
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OK, now you need to go back and redo all your testing because you have done something wrong. These results aren't possible.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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pettitd1
Novice
Jul 5, 2012, 11:30 AM
Post #13 of 16
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Re: blower motor quit working
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I took the 5 prong blower relay out and replaced it with a new one and, THE PROBLEM IS FIXED. I took a chance because everything else checked as good. Thank you for all your help and taking the time to show me diagrams, could not have done it with out your help. I told the guys at Auto Zone about CarJunky.com and highly recommend its use.
thanks again
Dan P
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Hammer Time
Ultimate Carjunky
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Jul 5, 2012, 11:58 AM
Post #14 of 16
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Re: blower motor quit working
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Not possible either. The way this is wired, if that relay was bad, you would have had all speeds but high so your answers are still wrong.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Discretesignals
Ultimate Carjunky
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Jul 5, 2012, 12:23 PM
Post #15 of 16
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Re: blower motor quit working
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Unless the relay contacts were fried. Open up the old relay and check out the contacts.
Glad to see you got your blower working again. 
Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.
(This post was edited by Discretesignals on Jul 5, 2012, 12:24 PM)
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