I have a 2003 Toyota Corolla CE model with just 170,681 miles on it. I changed the radiator, thermostat, & temperature sensor at 169,556 miles after I had over heated it. I got a check engine light that’s giving me code P0128 which I’ve attached a picture of it. The thermostat and sensor are new so I don’t know how it could be failing. The only thing I can think of is that I burned the head gasket when it over heated and it’s causing combustion to either make the temperature sensor get a bad reading or damage the thermostat. The problem with that though is that I’m not getting white smoke out of the tail pipe and I’m not getting milky oil. When I turn on the engine with the the radiator cap off I do get bubbles sometimes though. It seems weird that a new thermostat and or a temperature sensor would already start failing. I suspect it’s the head gasket. What do you think?
- This topic was modified 10 months ago by Rafael Hernandez.
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