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How do i replace the intake air temperature sensor on a 2005 chevy trailblazer

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The Intake Air Temperature Sensor (IAT) is located in the intake duct near the air cleaner assembly on the right side of the engine compartment. To replace it, you would simply disconnect the electrical connector and pull the sensor out of the rubber duct. The new one simply pushes in. Before going out and buying a new one, make sure that the sensor is plugged in if you are getting a code for it. These get accidentally left unplugged all the time when people remove the duct to perform air cleaner service. Also make sure the wires are not damaged. IAT Sensor failures are rare.

Posted on Apr 02, 2011

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Posted on Jan 02, 2017

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How do I fix a 2005 Chevy Trailblazer code PO113


Intake Air Temperature Circuit High Input

A code P0113 may mean that one or more of the following has happened:
Internally failed IAT sensor Faulty connection at IAT sensor
Open in IAT ground circuit or signal circuit
Short to voltage in IAT signal circuit or reference circuit IAT harness and/or wiring routed too close to high-voltage wiring (e.g. alternator, spark plug cables, etc.)
Faulty PCM (less likely but not impossible)

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Where is the intake air temperature sensor located at on a 2008 ford escape xlt v6? Trying to replace can't find it?


Intake Air Temperature Sensor

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Specific to:
Ford Escape 2005-2008

The Intake Air Temperature (IAT) sensor is incorporated in the Mass Air Flow assembly. Refer to the Mass Air Flow (MAF) sensor.Here's a link to the mass air flow sensor.
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Where is the oxygen sensor located on a 2002 chevy trailblazer


On the Air tube intake halfway between air filter and intake!

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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

1 Answer

I have a 2005 chevy trailblazer with a 6 cyl. engine. The check engine light is on and the car cuts off when you turn the air on. What could be the problem and how do i solve it.


When tha "check engine" light is turn on, some fault code is stored in the computer and just is warning about this; you will need to scanned the computer to know exactly what fault code is there.

Could be some vacuum problem, air intake sensors or other emission codes. With this code number could send you additional details.

Keep us updated.

Jul 29, 2011 | 2005 Chevrolet TrailBlazer

1 Answer

2005 chevy trailblazer, rough start, stalls, gas smell, warms up idles fast, once it warms up ok. Acts like it is going to die. Sputters. Changed air filter. Changed sparked plugs, changed oil. Did...


With temperature related problems, check your intake manifold bolts for tightness. Our intakes are plastic and have a tendency to become loose, causing vacuum leaks. When it warms up, the plastic intake will expand sealing any leaks. But when it's cold, will contract, causing leaks. Easiest to check are cylinder #5 & 6 near the fire wall.

Also, clean your throttle body, a dirty throttle body will cause idle problems, especially in TB's because we don't have a true PCV valve, so gets dirty which causes sticking of the butterfly.

May 01, 2011 | 2005 Chevrolet Trailblazer Ext

1 Answer

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


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

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Sensor locations


air intake look at snorkel it could be part of mass air flow check intake for eng coolant

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Check engine code 0113


You failed to give the model year which could have an influence on the accuracy of this answer:

" IAT Sensor 1 Circuit High Input"

Stolen from another forum:

"Intake Air Temperature (IAT) Sensor

The intake air temperature sensor (IAT sensor) changes resistance in response to intake air temperature. The IAT sensor resistance decreases as the surrounding air temperature increases. This provides a signal to the PCM indicating temperature of the incoming intake air."



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