Coolant Code P0128 from my IS-F
03-03-17, 12:46 PM
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Coolant Code P0128 from my IS-F
Just got a coolant code P0128. Anyone experience this? My reader is telling me to replace thermostat. Anyone know the location and p/n?
03-03-17, 02:55 PM
#2
The thermostat assembly is Lexus part #1603138010 or 160310S010. It looks like it comes with the required gasket which can only be used once. If it doesn't come with it or if you need another gasket its part # is 1632638010
03-07-17, 11:00 AM
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The thermostat assembly is Lexus part #1603138010 or 160310S010. It looks like it comes with the required gasket which can only be used once. If it doesn't come with it or if you need another gasket its part # is 1632638010
Attachment 405166
Attachment 405166
Thank you!
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08-15-20, 08:53 PM
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If your going to do the thermostat and the WP is still original..
Its time to do both
Assuming there is nothing wrong with the sensor, it likely means the thermostat is stuck open and not bringing the radiator fluid up to correct operating temperature..
Check your heater at night to see if you are getting just warm air..
(Hard to do during our heat wave)
Joe Z
Last edited by Joe Z; 08-15-20 at 08:59 PM.
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ISF4life (08-17-20)
Really? U think i should replace thr water pump too?
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ISF4life (08-17-20),
lobuxracer (08-16-20)
08-17-20, 11:17 AM
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Last summer I had the WP on deck as it was weeping..
At that time I replaced the WP, thermostat, tensioner and another new belt..
I'm stuck at 179k miles
Hope that helps!!
Joe Z
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Joe Z (08-20-20)
