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Answer Usually if only the high speed works then your resistor block (or plate, whichever you choose to call it) has gone bad. In Dodges it just has two bolts holding it in and it just slides out. It is is located under the passegener side near the center of the dash area. I would love to tell you where it is located in your vehicle, but I am afraid I have never replaced one in this type vehicle. Hope this helps you. Good luck.

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Q: 2000 silverado The first three speeds on the blower fan don't work can this be a bad relay?
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