Code P0128 problems
Top problems
Fan stays on
Chevrolet Sonic 2013 LT 1.8 123000 miles
Check engine light on, code p0128, already changed sensor and still keeps happening and getting code.
1 report
GO
Have you check the thermostat? In many Chevrolet cars that code indicates that the engine is not reaching the operating temperature, usually due to a thermostat failure.
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IG
No I havent but will do that, thanks.
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If the thermostart is falty will the heater works
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AN
I had the same issue and it was the thermostat
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