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I have a 05 chevy trailblazer, the check engine lite is on and a hand held analyzer indicated problem codes: PO410 $ PO128 any ideas? Wayne C

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P0410

Definition
Secondary Air Injection System fault
Explanation
The air injection system is monitored for faults
Probable Causes
1) Circuit relay defective or fuse open
2) Check connector and wiring
3) AIR pump defective or hoses blocked


P0128
Fault Code Definition

  • Engine temperature has not increased and/or reached the correct level within a specified amount of time after engine startup
Common Problems That Trigger the P0128 Code
As for the po128 I would replace the thermostat first. That is the problem 99% of the time.

Good Luck

Posted on Jul 12, 2010

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P0014 Diagnostic code, already replaced camshaft actuator & oil twice


code p0014 - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum

forums.trailvoy.com > ... > OEM Issues

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On my Trailblazer I have a code P0014 . this says Camshaft Position Actuator B ... If the desired and actual cam phase angle error exceeds its ... This diagnostic procedure supports the following DTC: ... replace the camshaft actuator solenoid, change the engine oil and filter, ... 2004 Chevy TrailBlazer LT P0014 - Camshaft Position Actuator Solenoid "Relearn"
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Tech Code "dtc P0014" 2003 Trailblazer - posted in Chevy ... it had been serviced before for the same thing in 2003 or 2004! ... replace the camshaft actuator solenoid, change the engine oil and .... The extended war. co. prob. would not be to happy since they already fixed the sensor once or twice already.

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What would your first step be if a 2005 chevy trailblazer has three codes po128 po410 po014


Google your codes & read up

Type: OBD & your codes

The way you work on any vehicle ,is to have factory service
manuals with trouble charts to follow

You need a professional scan tool, almost always ,to get not
just Generic but Enhanced codes

You have to road test to gather & look a all Data

You have to review the data & come up with your component
testing strategy, just to find a problem,anything,correct it &
continue on

Aug 10, 2014 | 2005 Chevrolet TrailBlazer

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Trouble codes for 2003 Chevy Blazer


Code 155 is for a problem with the heater circuit in the O2 sensor for bank two. Bank two is on the side with cylinder number two.
Usually the sensor is faulty, but the heater circuit would need to be checked to be sure. The sensor has a built-in heater to get it hot quickly after starting the engine.

Jul 10, 2013 | Cars & Trucks

1 Answer

2004 trailblazer code po128


P0128:
P0128 OBD-II Trouble Code
Technical 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 required temperature level within a specified amount of time after starting the engine. The intent of the P0128 code is to indicate a faulty thermostat. Similar codes: P0125

In determining the engine did not reach a "normal" temperature, it takes into account the length of time the vehicle has been running, the intake air temperature (IAT) sensor reading, the engine coolant temperature (ECT) sensor reading, and the speed of the vehicle.

CausesA code P0128 may mean that one or more of the following has happened:

Low engine coolant level .
Leaking or stuck open thermostat .
Faulty cooling fan (running too much) .
Faulty coolant temperature (ECT) sensor.
Faulty intake air temperature (IAT) sensor .Here's a link on replacing your thermostat.

Feb 06, 2013 | 2004 Chevrolet TrailBlazer

2 Answers

How to reset engine lite in dash


Check engine light comes on and off, these are indication that there is some error code stored in your vehicles ECM. The engine module computer needs to be scanned. These will give the code and as per the error code the further problem can be detected and confirmed. The engine light indicator blinks or remains steady on dash when engine computer noticed any problem with any engine electrically operated components.


For more help, I suggest you to refer the help links provided below. These will let you know more about which areas to look, check, when there is engine light coming up on dash panel.

---------

Click the link below: -------


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These details will help.

Thanks.

Nov 28, 2012 | 1999 Acura CL

1 Answer

My service engine soon lght is on in my 2004 chevy trailblazer LT. i went to take the care through marta this morning so i can renew my tags for my car. the man told me that the trouble sensors are P0014...


The P0014 code refers to one of your camshaft position sensors being out of time with the other. Does not mean its bad but it could be. The P0128 code refers to your engine running cooler than it should. Your coolant thermostat may be stuck open not letting the engine warm up to it's proper temp. Now you did not say which engine you have in the TrailBlazer. There are 2 different engine used in the year model. Please repost with that info.

Feb 01, 2011 | 2004 Chevrolet TrailBlazer

1 Answer

What could cause code PO128 to come up on a 2002 Chevy Trailblazer


Sounds like the thermostat may be stuck open or has anyone put a colder thermostat in the car,because once it starts to get cold it will throw a SES with a colder then stock thermostat.

Code PO128; coolant temp below thermostat regulating temp. Replace the thermostat and that should address your issue.

Thank you for using fixya and good uck

Sep 01, 2010 | 2002 Chevrolet TrailBlazer

1 Answer

Engine light came on, code po410 came up.


This has to do with the secondary air pump system, this system is used at cold start-up and involves three components; air pump, solenoid valve and a relay. Many times the valve becomes stuck or clogged, the relay has also been known to fail.

May 11, 2010 | 2004 Chevrolet TrailBlazer

1 Answer

What do I need to do to fix my 2005 trailblazer. its reading a code po128


Change the coolant temperature sensor. If the code is still there, change the thermostat, it might be stuck open causing the engine to run cooler than it should.

Aug 29, 2009 | 2005 Chevrolet TrailBlazer

1 Answer

Po410 code on a chevy trailblazer


The secondary air injection comes from an electric air pump (replaces the old eng. driven smog pump), it seldom runs, but when the car is 1st started you should hear if for about one minute, kinda sounds like a muffled hair dryer. The most common issue is the hoses get knocked off, 2nd is the electric motor failing.

Aug 02, 2008 | 2004 Chevrolet TrailBlazer

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