Where is the heater control valve locate on a 1996 impala ss?
On the 96 Chevy Impala SS the hot water supplying the heater core circulates all the time. The actual amount of heat is controled by a flap in the heater box. As you increase the heater control knob toward hot, it opens the door a little further allowing more air to move through the heater coil. Lack of heat or a reduced amount of heat has been blamed on the heater core or the water supply system being plugged. The dealer wil suggest back flushing. This has worked for many with the problem.
