hello! I have a 1996 Ranger XLT 4.0 with A/C. I just changed my water pump and now no heat. I changed the thermostat yesterday. The water pump is new changed saturday. The heater control valve was changed about a month ago. Blower works fine all speeds. Read here on forum about the tstat and flushing the heater core. How do you flush the heater core! does my vehicle have this tstat! The vacumm on the heater control valve works. can i bypass the heater control valve by using two pieces of nipple pipe and connect the heater hoses from the engine directly to the heater core. How can I tell if the tstat is working or not.
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