Having problems with your 2002 Chevrolet TrailBlazer ?

Error code PO128 for 2002 trailblazer

\015 Coolant levels ok. howb to tell if it is thermostat or sensor\015 Posted / edited by AnonymousUser on : 22-01-2018

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Repair Help & Product Troubleshooting for 2002 Chevrolet TrailBlazer

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Error code PO128 for 2002 trailblazer


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P0172 and P0128 Error Code 2003 Trailblazer 4WD


PO172 means that an oxygen sensor in bank 1 detected a rich condition (too little oxygen in the exhaust). I would replace the thermostat first. The computer could be injecting too much fuel because it thinks it never gets to operating t ... 2003 Chevrolet TrailBlazer

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2004 trailblazer, PO128 engine code - TrailBlazer Chevrolet Cars & Trucks


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I have an 02 trailblazer with a check engine light on went to get codes got a code of p1481 loss of cooling fan speed signal or p1484 ooling fan rpm error how can this be fixed i justreplaced the fan clutch does it mean i have to ak o dealership and get car reprogrammed


Hello,Thanks for using FixYa.The RPM sensor for the cooling fan might have gone bad. You need to go to the dealership and have the sensor checked and if its bad, have it replaced. I hope this helps. Thanks and good ... Chevrolet TrailBlazer

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If i had replaced the fan clutch on my 02 trailblazer two weeks ago an now i have a service engine soon light on with codes of p1481 and p1484 do i need to get truck reprogrammed since having this installed or wut else could be the problem the codes mean cooling fan speed loss and cooling fan rpm error because when i go to turn on my a/c or heater my car has a shake feel as if its trying to cut off


What engine do you have? ... Chevrolet TrailBlazer

2004 chevy trailblazer with error codes p0172 and p0410


 P1107 MAP Sensor Circuit Intermittent Low Voltage \015\012\015\012P1410 Fuel Tank Pressure System\015\012\015\012Good luck and hope this helps\015\012 ... 2004 Chevrolet TrailBlazer

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2004 trailblazer code po128


P0128:P0128 OBD-II Trouble CodeTechnical DescriptionCoolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)What does that mean?This means that the engine's PCM detected that the engine has not reached the requ ... 2004 Chevrolet TrailBlazer

2002 chevy trailblazer error code P0442


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My 2003 Trailblazer has a po128 code.


You might have put in a thermostat which opens at a lower temperature, or the temperature sensor is giving false lower than normal temperatures. I've seen this code several times and I invariably find a broken thermostat or one that's stuck open. You ... 2003 Chevrolet TrailBlazer

I have a 2003 chevy trailblazer that has a error code that states the #5 cylinder is misfiring, what does that mean?


The computer has detected a misfire on cylinder number 5.In mosts circumstances when I have run across this on the Envoy and Trailblazer.It is a failed coil pack.Easiest way to check would be to swap cylinder 5 coil with another coil and see if it fo ... 2003 Chevrolet Trailblazer Ext

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P0128 is a code for engine temp below regulated temp. It usually sets when the t-stat goes bad and is either broken or stuck open. Either of which can happen on the sentra. Replace the t-stat (especially if you have noticed that your temp gauge has b ... 2006 Nissan Sentra

Code po128 coolant thermostat - 2004 Chevrolet TrailBlazer


Replace the thermostat/ housing assy ... 2004 Chevrolet TrailBlazer

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{: ) If your vehicle is equipped with an air suspension system, one possible source for this combination of codes is the wiring along the air compressor located on a bracket on the left rear chassis frame, near the spare tire. Carefully pull the ... 2008 Chevrolet Trailblazer

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I dont know what you are talkng about, what is the code??? ... 2004 Chevrolet TrailBlazer

I HAVE AN 02 TRAILBLAZER THAT HAS A CODE OF P1481 OR P1484 MANING LOSS OF COOLING FAN SPEED SIGNAL COOI FAN RPM ERROR AND I HAVE REPACED THE FAN CLUTCH HOW TO FIX PROBLEM


Coolant error or coolant looss relates to the cooling problem in the car.coolant is the gas in the car ac system or in the car heater which helps the ac and heater to keep the car cool internal and not lead to overhating problem in car engine.\ ... Chevrolet TrailBlazer

Error code po128 - 2002 Chevrolet Venture Passanger


P0128 - Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)This means that the engine's PCM detected that the engine has not reached the required temperature level within a specified amount of time after start ... 2002 Chevrolet Venture Passanger

I have serv eng light on with code # PO172 , PO128 , and PO442 , and I replaced fuel tank cap today , light still on ,and I need to get inspection , but I am out of work and can't afford expensive repair at dealership , and I suspect I have a faulty Oxygen sensor , car runs fine , no problems at all noticed other than light on , 03' Chevy Trailblazer 2w.dr. 6 cyl. , any sugestions ?


Code p0172 is MAF, vacuum leak, and fuel pressure.\015\012You can see my TIPS on this site to help with the MAF.\015\012Code p0128 is Low ccolant, ECT or the IAT.\015\012code p0442 is your EVAP system.\015\012Please let me kn ... 2003 Chevrolet TrailBlazer
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