Where is the thermostat sensor located in a 2008 Chevy Trailblazer engine?

Question edited for clarity.
Question moved to model category.

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pcm tcm location?

https://www.trailvoy.com > ... > Engine Tunes/Mods
Aug 18, 2008 - It is in the engine bay on the driver front side of the motor. Look at the battery and just below it is the ECM/TCM on a bracket right beside ...
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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.

Follow the radiator hose back to the engine on the top side. Where the hose connects to the engine is the thermostat housing. Remove the hose clamp and hose (when vehicle is cool). remove the housing itself and the thermostat will be right in front of you. .

camshaft position sensor located on 2003 Chevy Trailblazer with 4 2L...

Hi.

The Chevy Trailblazer 5.3 and 4.2 engines have two knock sensors located at the lower sides of the engine block.

Below two diagrams showing locations first is from 5.3 right second 4.2 left.

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

yes...

Assuming you have a 4.2L engine here is the location.


Hope this helps out,
if so please rate my answers.
Brett

Driver side engine block behind the alternator.You need to remove the alternator to get to the sensor.

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.