It is a blower resistor. Here is a bulletin with part numbers. Subject: Blower Motor Inoperative In Any One or More Blower Speed
Models: 2004-2006 Chevrolet Colorado
2004-2006 GMC Canyon Blower motor inoperative in one or more blower speeds. This concern is due to a loose connection at the blower motor resistor.
Inspect the connection at the blower motor resistor. Replace the blower motor resistor and any terminals in the female part of the connector that show evidence of arching or corrosion. The replacement connector and terminals are listed below.
Part Number 15306069, Female Connector With Leads. Replace the connector body with leads only if the connector body shows signs of damage. It may be necessary to generate a SPAC case to obtain this connector with leads.
Part Number 12176387, Replacement Female Terminal. This terminal is made of copper-beryllium and can be located in Delphi tray 3 of your Packard kit. Only replace the terminal(s) if the connector body has no evidence of damage.
Replace the blower motor resistor only if it shows signs of arching or corrosion at its terminals.
Post back with the results.
Saturday, July 26th, 2008 AT 10:06 PM