What's the 2003 GMC Envoy 4.2 Mass air flow sensor location?

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James M. February 2, 2021
The mass air flow sensor for a 2003 GMC Envoy equipped with A4.2L engine will be located under the hood of the vehicle. You'll want to pop open the driver's side door and then pull on the hood release lever. Now once outside the vehicle You can use one hand to lift up the hood and the other to undo the latch on it. Now look towards the back of Your engine. Behind the engine is going to be the throttle body. The air flow sensor will be just above this. A new sensor will cost between $30 and $55.
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Vaughn M July 16, 2020
The 2003 gmc envoy 4.2 Mass air flow sensor is located on the throttle body.
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