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Old 10-10-2019, 03:06 PM   #9
Scooby Newbie
Member#: 459692
Join Date: Dec 2016
Chapter/Region: South East
Location: Hampton Roads Va
2019 WRX STI
silica black


Do you really need to drain any coolant and risk having issues bleeding the system? If you depressurize the system and have the new sensor ready to swap I wouldn't see you losing much coolant at all, correct me if I'm wrong. Being an HVAC mechanic I replace sensors all the time "on the fly" in hydronic systems, you just have to depressurize the system.
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undyjr is offline   Reply With Quote