Member
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Join Date: May 2023
Location: Chiloquin
Posts: 57
Real Name: Patrick
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Member
Join Date: May 2023
Location: Chiloquin
Posts: 57
Real Name: Patrick
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The thermostat will stay closed, if you're just pressurizing the system with a pressure tester. You need to get it up to the operating temp of the engine. 190° F I think is right, but I may well be wrong on that.
Also, the kind of hose clamps that come from the factory, the clamps Toyota puts on, seem to work better than the screw down clamps you get from the auto parts store. They are readily available from Toyota parts sources.
Good fortune to you!
Pat☺
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