Chevrolet Equinox 2014-2020 Manifold Absolute Pressure (MAP) Sensor Guide
Fix poor engine performance and check engine light issues in your Equinox by understanding the MAP sensor.
- A failing MAP sensor on a 2014-2020 Equinox commonly causes a Check Engine Light with codes P0106, P0107, or P0108.
- Replacement is a very simple DIY job, typically taking less than 15 minutes with basic tools. The sensor is easily accessible on top of the intake manifold.
- Before replacing the sensor, inspect the electrical connector for a loose fit or corrosion, as this can cause identical symptoms.
- Driving with a bad MAP sensor is not recommended as it can lead to long-term damage to the catalytic converter due to a rich fuel mixture.
Is Your Equinox Running Rough? It Could Be the MAP Sensor
If your 2014-2020 Chevrolet Equinox is experiencing issues like rough idling, poor acceleration, or a sudden drop in fuel economy, a faulty Manifold Absolute Pressure (MAP) sensor is a common culprit. This small sensor provides critical data to your engine's computer, and when it fails, it can cause a range of noticeable problems. Fortunately, for this generation of Equinox, replacing the MAP sensor is a straightforward and affordable repair.
Symptoms of a Failing MAP Sensor
A bad MAP sensor sends incorrect information to the engine computer, which then makes poor decisions about fuel and timing. This can lead to several symptoms:
- Check Engine Light: This is often the first sign. The sensor will trigger specific trouble codes, most commonly P0106, P0107, or P0108. 🎬 Watch: How to diagnose these MAP sensor codes step-by-step.
- Rough Idle: The engine may shake or vibrate more than usual when the vehicle is stopped.
- Poor Fuel Economy: The computer may inject too much fuel, causing your gas mileage to drop significantly.
- Loss of Power & Hesitation: Your Equinox might feel sluggish when you accelerate.
- Black Smoke from Exhaust: This is a sign of a rich fuel mixture, where too much gasoline is being burned.
- Stalling: In some cases, the engine may stall, especially when idling or under load.
Related Vehicle Issues to Check First
Before replacing the MAP sensor, be aware of other known issues on the 2014-2020 Equinox that can mimic MAP sensor failure. A GM Technical Service Bulletin (TSB 18-NA-020) notes that moisture can build up in the charge air cooler, especially on turbocharged models, causing similar symptoms and trouble codes like P0299 or P2227. Also, check the sensor's electrical connector for a loose fit or corrosion, as a bad connection can cause MAP sensor codes even when the sensor itself is good.
🎬 See how to clean your sensor before buying a replacement.Choosing the Right Aftermarket MAP Sensor
When shopping for a new MAP sensor, you'll find several brands. They generally fall into a few quality tiers.
- Premium Aftermarket (OEM-Equivalent): Brands like Bosch and Delphi are often original equipment suppliers to automakers like GM. Choosing one of these brands gives you a part that is engineered to the original specifications and is a reliable choice for long-term performance. AC Delco is the official GM parts brand.
- Quality Aftermarket: Brands like Standard Ignition (Standard Motor Products), NGK, and Walker Products have a long history of producing reliable aftermarket components. They offer a good balance of quality and price and are a solid choice for most repairs.
- Economy Brands: While more affordable, budget-friendly brands may not have the same level of quality control or use the same robust materials as premium options. For a critical sensor like the MAP, it's often worth investing in a recognized brand to avoid premature failure and ensure accurate readings.
Pro Tip: A Simple DIY Replacement
Replacing the MAP sensor on the 2.4L Equinox is an excellent DIY task for beginners. The sensor is located directly on top of the intake manifold, just above the throttle body, making it very easy to access. You only need to disconnect the electrical plug, remove a single T-25 Torx screw, and swap the old sensor for the new one. The entire job can be done in less than 15 minutes.
🎬 Watch this quick walkthrough of the MAP sensor replacement process.Cost of Replacing the MAP Sensor
The cost to replace the MAP sensor is relatively low compared to many other engine repairs. Below are typical cost ranges.
| Item | Cost Range |
|---|---|
| New Aftermarket Part | $39.20 - $103.14 |
| New OEM Part | $124 - $150 |
| Shop Labor | $54 - $120 |
| Total Professional Repair | $178 - $270 |
Frequently Asked Questions
Can I drive my Equinox with a bad MAP sensor?
Yes, you can usually drive with a bad MAP sensor, but it is not recommended. You will experience poor performance, terrible fuel economy, and potential stalling. Driving for an extended period with a rich fuel mixture can damage your expensive catalytic converter.
Where is the MAP sensor located on a 2014-2020 Equinox?
On the common 2.4L engine, the MAP sensor is located on the top front of the intake manifold, just above the throttle body. It is held in place by a single screw.
What are the most common trouble codes for a bad MAP sensor?
The most common Diagnostic Trouble Codes (DTCs) are P0106 (MAP/Barometric Pressure Circuit Range/Performance), P0107 (Circuit Low Input), and P0108 (Circuit High Input).
Do I need to reset the computer after replacing the MAP sensor?
It is best practice to clear the trouble codes with an OBD2 scanner after installation. Alternatively, you can disconnect the battery's negative terminal for about 15 minutes to reset the ECU, though clearing with a scanner is the preferred method.
Helpful Videos
Technical Specifications
OEM Part Numbers: 55573249 12711664 12639692
The MAP sensor for the 2014-2020 Chevrolet Equinox is a three-wire sensor that provides a variable voltage signal to the ECU based on manifold pressure. It receives a 5-volt reference and a ground from the ECU.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Chevrolet Equinox:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Equinox Running Rough? It Could Be the MAP Sensor
- Symptoms of a Failing MAP Sensor
- Related Vehicle Issues to Check First
- Choosing the Right Aftermarket MAP Sensor
- Pro Tip: A Simple DIY Replacement
- Cost of Replacing the MAP Sensor
- Frequently Asked Questions
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