I got 2001 and I was wondering the same thing! what is that little fan. If what you are talking about is right above the driver seat it in fact is not a fan but a busted speaker for your Onstar service. Which probably happened when someone replaced the stock stereo head in your dashboard.
The 2003 GMC Yukon has 16 valves.
The 2003 GMC Yukon has overhead valves (OHV).
The 2003 GMC Yukon is a gas-powered vehicle.
The 2003 GMC Yukon has a 4-speed automatic.
The 2003 GMC Yukon-XL has 16 valves.
The height of the 2003 GMC Yukon is 6 ft. 4.7 in. (76.7 in.).
The 2003 GMC Yukon has a 22 degrees angle of approach.
The 2003 GMC Yukon runs on regular unleaded.
The curb weight of the 2003 GMC Yukon is 5042 lbs..
The 2003 GMC Yukon-XL has a V8 engine.
The 2003 GMC Yukon is 16 ft. 6.9 in. (198.9 in.) long.
The 2003 GMC Yukon has a V8 engine.