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