Hi fellas, my heater is luke warm, never gets hot, ive done the control flaps test, no problem with that, ive flushed through the heater matrix.. no apparent blockage. so i move on to what else could be wrong..

Im looking at the heater control valve next.. i need to locate it, and replace it.. any ideas as to location and method for swapping it for a new one.

if its not this valve, im stuck.. ill need to buy gloves for the winter. my car is a 2007 Range Rover sport 4.2 V8 Supercharged