Heat sucks

[clemsonteg]

Originally Posted by Longhorn 70

There may be one more thing. Do you have a heater control valve installed? There are 2 different types. One made for our trucks that vacuum closes the valve and the other made for different years and cars where vacuum opens the valve.

If you have a valve that doesn't allow flow through, the hoses will still get hot but the core won't. If you have a valve in place, try bypassing it by placing a short section of pipe in the hose where the valve is.

If you DON'T have a valve, nevermind.

Thanks for the input. No valve. Hoses run directly from the motor to the heater core.