divinelexo Posted December 29, 2023 Share Posted December 29, 2023 having a very difficult time locating engine block petcock to drain the coolant from my block on my 2016 is200t f sport. anyone know where it is? Quote Link to comment Share on other sites More sharing options...
RX400h Posted December 29, 2023 Share Posted December 29, 2023 Are you certain there is one on the engine block? Most auto block fittings related to the cooling system are air bleeds, not drains. The main coolant drain valve is on the radiator as per item 6 in this image: 2016-2023 Lexus Drain Valve 90910-09134 | OEM Parts Online Quote Link to comment Share on other sites More sharing options...
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