Having problems with your 2005 GMC Sierra 2500HD 4WD ?
Blower motor does not work on hi speed
\015 Works on lower speeds but not on hi speed\015
Could be your blower motor resister,here's a link to what it looks like,it's located next to blower motor,easy to remove,disconnect electrical connector,remove 2 screws,can't look at it to tell if bad.Here's where the blower motor is.
Repair Help & Product Troubleshooting for 2005 GMC Sierra 2500HD 4WD
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