when changeing the t stat isnt there a vent on the block to be cracked during refill?
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1998 Mercury Villager Question: t stat change; isn't there a vent on the block.
Answer #1dandd September 20, 2009, 18:01Master
Not necessarily, you can just fill the car and then run it and then 'burp' the system. Sometimes I fill up the system and then I drive the car until the temp gauge becomes stable, which is a sign that the system has burped. Then I top off the system.