2001 Chevrolet Impala "code po 128" Questions

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...PO 506 on my chevy Impala, 2002, LS 3.8 code P0128 ECT ( electronic coolant temperature ) engine temperature to low ( replace thermostat ). code P0300 engine miss fire detected ( replace spark plugs ...

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...changed the sensore and the thermostat. The code readers indicates PO 118-temperature circuit high input, and PO 128-engine coolant temperature circuit malfunction . YOU FAULTY COOLANT SENSOR OR

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...PO 410 What do these codes mean and what parts can I purchase to ensure it rectifies the Engine Light.? Need help asap. Ivan [email protected] Take it to a qualified repair shop an have it ...

...PO 128 AND PO 420 what engine, what size. that is first question. misfire, map ,maf, iat, ect,tps and cat fail and low coolant temps. very odd mix there. did you pull connections, key on??????? it ...

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...thermostat symbol on dash has 2 codes po 128 and po 118 Both codes are for the coolant temp, the blue symbol means the car is cold, check the fans to make sure there operating and check coolant ...

...PO 128 codes. What is wrong with my truck? P0455 is indicating a leak in the Evaporative Emissions system, a common reason for this is a loose gas cap. P0128 is indicating that the engine is not ...

PO 622 Trouble Code: P0128Thermostat Rationality Test Possible Causes: Check the operation of the thermostat (it may be stuck open).ECT Sensor is contaminated, damaged or it has failed.Inspect for low

...code po 128. Heater works. 100 mile trips no problem. Temp gage below C. New sensor or new thermostat? check engine light started coming on after a long drive with the heater. After cleared returns ...

...PO 128,PO336,PO38,and PO 386can anyone tell what these are? P0038 - HO2S Heater Control Circuit High Bank 1 Sensor 2 P0128 - Coolant Thermostat (Coolant Temp Below Thermostat Regulating ...

Question about Chevrolet Impala

1 Answer

obd2 code po 128 obd2 code reader says po 128 P0128 means that your engine thermostat is more than likely faulty. The code description is engine operation below thermostat regulating temperature.

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