Pontiac P0128 Engine Coolant Temperature Below Thermostat Regulating Temperature Diagnostic Trouble Code, Definition, reasons, And fixing Guide


What does this mean?

Interpretation of OBD2 Code P0128 Pontiac:
This means that the PCM of the engine detected that the engine had not reached the proper temperature range within the set time after starting the engine. The purpose of the P0128 Pontiac code is to point out one error. Compatible indicators: P0125 Pontiac Recognizing that the engine does not heat up as “normal”, it also takes into account the length of time the vehicle has been moving, the air temperature monitor (IAT), the engine cooling device (ECT) count, and the speed of the vehicle.


Possible indicators of OBD code P0128 Pontiac
You will probably not see any driving problems other than the MIL scan.


Possible triggers for the OBD P0128 Pontiac code
Code P0128 Pontiac could mean that one or more of the following have occurred: Low engine oil Loss Loss or open heat sealing No faulty cooling (high speed) Cooling temperature controller (ECT) Air temperature input (IAT)

Possible Answers

Past experience suggests that the most likely solution is to replace the thermostat. However there are some suggestions on the problems with fixing P0128 Pontiac: Confirm cooling & rate Determine how cool it is (see if it works better than it should). Adjust if necessary. Make sure you run the right engine engine (ECT) device, instead if necessary. Be sure to use an appropriate air temperature control device (IAT), instead if necessary. If the above features are working properly, replace the thermostat If the Nissan vehicle, check for Technical Service Bulletins (TSBs), as ECM may need to be reprinted to correct the P0128 Pontiac code

More about OBD2 Code for Use on Pontiac:

Pontiac G8,2009 Pontiac G8,2009 Pontiac G6, 2009 Pontiac G3,2008 Pontiac G8,2007 Pontiac Solstice SD-290 Concept, 2007 Pontiac Solstice GXP, 2007 Pontiac G6 GXP Show Car, 2006 Pontiac Torrent, 2006 Pontiac Solstice, 2006 Pontiac Solonti Montana SV6,2006 Pontiac GTO, 2006 Pontiac G6 GTP Coupe, 2006 Pontiac G6 GTP Convertible, 2005 Pontiac Vibe GT, 2005 Pontiac Montana SV6,2005 Pontiac Grand Prix, 2005 Pontiac Grand Am GT Coupe, 2005 Pontiac GTO, 2005 Pontiac G6 GT, 2004 Pontiac Grand Prix GTP, 2004 Pontiac Grand Am GXP, 2004 Pontiac GTO 5.7,2004 Pontiac GTO, 2004 Pontiac Bonneville GXP, 2004 Pontiac Aztek Rally, 2003 Pontiac Vibe GT, 2003 Pontiac Vibe, 2003 Pontiac Sunfire Coupe, 2003 Pontiac Montana Thunder, 2003 Pontiac Grand Prix, 2003 Pontiac Grand Am SE Sedan, 2003 Pontiac G6 Concept, 2003 Pontiac Aztek, 2002 Pontiac Sunfire GXP, 2002 Pontiac Sunfire American Tuner, 2002 Pontiac Solstice Concept, 2002 Pontiac REV Concept, 2002 Pontiac Grand Prix GXP, 2002 Pontiac Principle of Grand Pr ix G-Force, 2002 Pontiac Firebird Tra ns Am Edition, 2001 Pontiac Vibe GT, 2001 Pontiac Vibe, 2001 Pontiac Sunfire HO, 2001 Pontiac Sunfire Available, 2001 Pontiac Montana, 2001 Pontiac Grand Prix


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