Question about 2002 Chevrolet TrailBlazer

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Where is the coolent control sensor located on a 2002 LT trailblazer

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  • Chevrolet Master
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2.2L & 2.4L Engines

  1. Turn OFF the ignition.
  2. Drain the coolant system to below the ECT sensor.
  3. Disconnect the engine coolant temperature (ECT) sensor electrical connector.
  4. Carefully remove the ECT sensor.
  5. Installation is the reverse of the removal procedure. Coat sensor threads with thread lock sealant and tighten sensor to 89 inch lbs. (10 Nm).
It looks like this:

where is the coolent control sensor located - 5cfd7c8.jpg

Typically screwed into a coolant passage in the intake manifold or the thermostat housing.

Posted on Nov 13, 2009

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  • Chevrolet Master
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On the left front of engine near generator, hope this helps,

Posted on Nov 13, 2009

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We're is the coolant temperature sense located on a 2008 trailblazer lt


Hi Janice , Before I say where the coolant temp. sensor is I'd just like to make you aware of a couple of thing's before you replace this sensor needlessly .It's one thing if you have a DTC diagnostic trouble code for the sensor but another if your temp. gauge isn't work ! You see the coolant temp. sensor is an input to the engine computer , not directly to the temp. gauge.
The instrument panel cluster (IPC) displays the engine coolant temperature as determined by the engine control module (ECM). The IPC receives a serial data message from the ECM indicating the engine coolant temperature. The engine coolant temperature gage defaults to 100°F (40°C) or below if: ?€¢
The ECM detects a malfunction in the engine coolant temperature sensor circuit.


?€¢
The IPC detects a loss of serial data communications with the ECM.

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2 Answers

Would like to know where the Cam Shaft Sensor is located in 2002 Trailblazer.


it is the sensor that is being pointed at in the cylinder head


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Is your 2002 trailblazer speed sensor located


Hi!!

The speed sensor is located on top or the transmission, towards the back end.

Don't forget to rate this post!!

Jul 23, 2010 | 2002 Chevrolet TrailBlazer

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Location of oxygen sensors


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Assuming you have a 4.2L engine here is the location.
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Hope this helps out,
if so please rate my answers.
Brett

Mar 19, 2009 | 2002 Chevrolet TrailBlazer

1 Answer

Need to change coolent temperture sensor.How do i locate it?


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2002 Chevy Trailblazer Engine Codes


This is actually an easy swap out. Remove the electrical connection, remove the retaining bolt and pull out old one. I believe the sensor is located in the front passenger side of the engine on this particular model.

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