04 Denali wheels?

do the 04 Denali wheels have the sensors in them ??

If you mean tire pressure monitor sensors, then yes they do, assuming that the wheels came OEM when you bought your Denali. I only mention this because if you bought them off another person who has an '04 Denali (or some other GM vehicle which uses the same sensors) and sold his set because he bought some aftermarket wheels, he may have took them out to put them on his wheels...

yep, there are no sensors in the 04 denali wheels that I just brought. just regular valve stems.

Ah, I see--just as I suspected, someone else took them out before you bought the wheels...unless those '04 Denali wheels you bought didn't originally come installed on the vehicle they were taken off of--i.e., they were previously bought/obtained as a replacement or extra set of OEM wheels.