the water is heated by the motor and goes into a set of coils inside a box near the firewall and a fan blows through the coils and it heats the air and is blown out the vents.
Check your coolant. Is it thick and gunky?
the heater fan resister,it is or should be on inside or on outside heater box.
The heater blower for a 2002 Chevy Silverado is mounted under the dash. It is on the passenger side, in the heater housing.
You most like have a bad blower motor resister.......
try the bend door
The heater inlet hose is on the firewall. On the 2002 Silverado it is close to the bottom of the firewall on the passenger side.
Have you flushed the heater core?
i need to replace the temperature control light bulb on my 2004 silverado.
10000.00
take out the glove box
No.
NO it don't have one.