Chevy Mass Air Flow (MAF) Sensor Replacement Guide

A Chevy MAF sensor is located right next to the engine air filter housing. It can get dirty and fail over time. 

Symptoms

Symptoms that you may notice when your MAF sensor fails: 

• Check engine light on
• The car is hard to start or has trouble turning over.
• Engine stalls soon after starting.
• The engine runs lean or rich.
• Engine drags or hesitates when idle or under load.
• Engines RPMs fluctuate
• Poor MPG

How to Replace Chevy MAF Sensor

Changing the mass airflow sensor on a Chevrolet is very easy and takes less than 30 minutes.  MAF sensor is located near the air filter housing, as shown in the following picture.

What you will need

• Chevrolet MAF Sensor
• Screwdriver

Procedure

1. Open the hood of your Chevrolet. The hood release is located under the dashboard on the driver's side.

    

2. Locate the mass airflow sensor near the engine air filter housing. 

   

   

3. Press the red clip slightly to unlock it. Unplug the electrical connector from the mass airflow sensor.

   

    

4. Remove the screws that hold the mass airflow sensor in place. Remove the sensor. 

5. Install the new MAF on your Chevrolet. Tighten the screws so that they are snug. Plug the electrical connector until it locks in place.

The check engine light will require a few days of driving to reset on its own. Or you can use an OBD-II scanner to reset the check engine light as long as there aren't any other fault codes present. 

This guide will help owners of the following Chevrolets. Learn how easy it is to change MAF sensor.

• Spark
• Sonic
• Bolt
• Volt
• Cruze
• Malibu
• Impala
• Camaro,
• Corvette
• City Express
• Trax
• Equinox
• Traverse
• Tahoe
• Suburban
• Colorado
• Silverado
• Sonic
• Blazer
• Astro
• HHR
• Uplander
• Avalanche