I have a V8 5.0L engine in a 99 ford explorer AWD, the heater control valve was broken. I live in a place with tropical weather, so my urgent need is to have colder air. Can I install a manual valve instead of the broken original vacuum operated one? Would it affect the engine's temperature if the manual valve is set to the closed position all the time. I have not found the replacement vacuum controlled heater valve in my country.
Friday, March 29th, 2013 AT 4:28 PM