2003 silverado: I went to sratrt it and the bateery was dead..once jumped the heater blower fan stays on high.. won't shut off even when the keys is off....
Under the passenger side dash, right above floor board there is a wire connector. That connector is for your blower resistor. If you unhook it, the blower will stop running, hook it back up and you will have a blower. You can also remove the fuse. Point being you can use your truck. Order the new part and replace it. I can't remember how many wires went to it off hand, its rectangular, mayber 6-7or 8ish.
Oops, the part you need to order is the part the wire connector is hooked to. I believe it has two screws (6 mm maybe) holding it up into the black box above the passenger side floor. Most part stores should know what you are talking about when asking for a blower resister. Take the old one with you. Don't worry, its small enough to fit in your palm.
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