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How to Replace the Cabin Fan Resistor on a GMC Sierra

Model: GMC Sierra MK 2 - Years: 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007

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Video tutorial

This guide shows you how to remove and replace the cabin fan resistor or air conditioning resistor on a GMC Sierra by following these simple steps. First, get inside the vehicle and remove the plastic panel located at the bottom on the passenger side to access the cabin fan and specifically the resistor; then disconnect the electrical connector and remove the screws securing the resistor to take it out and replace it with a new one, as shown in the video.

Finally, reassemble everything, following the video to the end!


Updated on 12 May 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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