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The thermostat comes in a housing that bolts directly to the motor, and is located on the driver's side of the motor, about 1/2 way from the top, & towards the front of the engine. To remove/replace it you need a socket wrench & a 3 to 6 inch extension. You will have to remove the alternator and serpentine belt to get to it. This is where the thermostat is located on the trailblazer for years 2002 to 2004.

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โˆ™ 2009-11-21 22:09:02
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Q: Where is the thermostat located on a 2003 Chevy Trailblazer straight 6?
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