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?
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.
Chuck D. “Adventure is just bad planning.” - Roald Amundsen 2013 Jayco X20E Hybrid 2016 Chevy Silverado Crew Cab Z71 LTZ2 2008 GMC Sierra SLE1 Crew Cab Z71 (traded)
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
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.
