2003 Chevy Silverado Blower Resistor

rex · 02-24-2007, 08:46 PM

Hello. I am a new member of the site, but have used it before for information. I have a 2003 Chevy Silverado. Two months ago my blower started only working on the highest speed (5). I did some searching on this site and determined that it was the blower motor resistor causing the problem. I replaced it with a factory part from my local Chevy dealer and it cured the problem until now, the same problem is occurring. Is there something causing this resistor to fail, or did I just get stuck with a lemon? I am reluctant to just put another $50.00 part into my truck if there is something that is causing it to fail. Thank you for your time.

Rex

bradrhale · 02-26-2007, 06:47 AM

could be another bad resistor. usually resistors break when there is a large voltage spike which could also be a problem for you.

rex · 02-27-2007, 12:18 AM

bradrhale- Thanks for the reply. What would be causing a voltage spike that would blow out the resistor? Should I just buy another one and put it in, or is there something else that should be fixed before I replace the part again? Thanks again for your help.

bradrhale · 02-28-2007, 09:27 AM

being that everything else works, i wonder what voltage the blower motor is pulling. i seriously doubt that this is a problem for you since it has gone all this time without problem. certainly there is some warranty on the resistor.

02-24-2007, 08:46 PM	#1
rex Junior Member Join Date: Feb 2007 Posts: 3	2003 Chevy Silverado Blower Resistor Hello. I am a new member of the site, but have used it before for information. I have a 2003 Chevy Silverado. Two months ago my blower started only working on the highest speed (5). I did some searching on this site and determined that it was the blower motor resistor causing the problem. I replaced it with a factory part from my local Chevy dealer and it cured the problem until now, the same problem is occurring. Is there something causing this resistor to fail, or did I just get stuck with a lemon? I am reluctant to just put another $50.00 part into my truck if there is something that is causing it to fail. Thank you for your time. Rex

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02-26-2007, 06:47 AM	#2
bradrhale Moderator Join Date: Apr 2006 Location: Texas Posts: 3,620	could be another bad resistor. usually resistors break when there is a large voltage spike which could also be a problem for you.

02-27-2007, 12:18 AM	#3
rex Junior Member Join Date: Feb 2007 Posts: 3	bradrhale- Thanks for the reply. What would be causing a voltage spike that would blow out the resistor? Should I just buy another one and put it in, or is there something else that should be fixed before I replace the part again? Thanks again for your help.

02-28-2007, 09:27 AM	#4
bradrhale Moderator Join Date: Apr 2006 Location: Texas Posts: 3,620	being that everything else works, i wonder what voltage the blower motor is pulling. i seriously doubt that this is a problem for you since it has gone all this time without problem. certainly there is some warranty on the resistor.