Question about 2004 GMC Sierra 2500

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2007 gmc sierra 2500 IAT sensor

Which wires on a 2007 gmc sierra 2500 are for the IAT sensor.

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  • poch928 Jan 31, 2009

    there are 5 wires, red, black, tan, yellow, and blue/white. I need to know which is the power wire and which is the iat signal wire.

  • poch928 May 11, 2010

    the wires are colored red, black, tan, yellow, and a blue/white stripe. which one is the iat signal wire.

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  • Master
  • 375 Answers

Well, the IAT (Intake Air Temperature) sensor is located on the air intake duct between the filter and the throttle body (Assuming you have the 6L motor). The wires are easily visible at the plug that connects the sensor to the wiring harness. That's the easiest place to access them.

Posted on May 18, 2008

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