I'm having problems with my 88' Samurai, I seem to be losing antifreeze somewhere. I've had the radiator checked and cleaned, replaced all the coolant hoses, and watched carefully for leaks. The only thing that I know is bad is the heater control valve on the firewall. Will this make the Sammi run hot? It has a new Weber carb and MSD ignition, I replaced the important parts when I got it out of storage. Now I only drive about 4 miles to work and I have to put 2-3 cups of antifreeze a day or it runs hot. Any help would be appreciated.