2003 Chevrolet Tahoe heat/ac fan not working.

Question

So my 2003 Chevrolet Tahoe with 154,000 miles has issue with blowing heat and or a/c. For awhile, its only worked on speeds 3-5. Now, only working on speed 5. 1-4, not working at all. Is this an issue with my blower motor resistor? Is this easy to access on the 2003 Tahoe?
Do I access it on passenger side below the glove box area?

Thanks!

srt20 · Answer

The switch in the dash. Common issue on that era GMs.

ajbert · Answer

On my 2000 Chevy Blazer I only have 4 speeds.  However, 1-3 get their power through a fuses and 4 comes from the relay.  You might want to look at your fuses.

minncamper · Answer

Change out the fan resister. I've done it a bunch of times. Google it real easy fix.

closurdo · Answer

Had the same problem on my '03 Silverado a while back, was the fan resistor located in the heater box on the passenger side. Plenty of videos on Youtube on how to change it out and I think it was only three screws to remove it. The part was available at my local auto-parts store for around $25.00

campfire_time · Answer

I concur on this being the blower motor resistor. It's probably about $12. It's usually behind the heater box but not too hard to get to. As said, search Google and you'll find a youtube video.

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2003 Chevrolet Tahoe heat/ac fan not working.

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