Chevrolet Malibu MAP Sensor Guide for 2013-2020 Models
Understand the signs of a bad MAP sensor in your 2013-2020 Chevrolet Malibu and how to choose the right replacement part.
- A bad MAP sensor on a Malibu typically causes a rough idle, poor fuel economy, and loss of power.
- Always scan for diagnostic codes before replacing parts; a 'Reduced Engine Power' message can also be caused by a faulty accelerator pedal sensor.
- Replacement is very DIY-friendly, usually requiring only one bolt and less than an hour of your time.
- An affordable aftermarket sensor is a practical choice for this repair, restoring function without the high cost of an OEM part.
Is Your Malibu Running Rough? It Could Be the MAP Sensor.
A failing Manifold Absolute Pressure (MAP) sensor can cause a range of frustrating engine problems in the 2013 to 2020 Chevrolet Malibu. Because this sensor provides critical data for the air-fuel mixture and ignition timing, a bad reading can throw everything off. Symptoms can appear suddenly and may be confused with other issues, like a vacuum leak or a problem with the accelerator pedal sensor.
Common Symptoms of a Bad MAP Sensor
- Check Engine Light: This is often the first sign. You'll likely see codes such as P0106, P0107, or P0108 stored in the computer. 🎬 Watch: Identifying bad MAP sensor symptoms and error codes.
- Rough Idle: The engine may shake or vibrate at a stop because the air-fuel mixture is unstable.
- Poor Fuel Economy: If the sensor sends a bad signal, the engine may run "rich," meaning it uses more fuel than it needs, causing you to visit the gas station more often.
- Lack of Power: Your Malibu might feel sluggish and slow to accelerate. The engine isn't getting the right fuel mixture to produce full power.
- Black Smoke from Exhaust: This is a clear sign of a rich fuel condition, where unburnt fuel is being pushed out through the exhaust.
- Stalling: In severe cases, the engine may stall shortly after starting or while idling.
"Reduced Engine Power" Message
Many Malibu owners experience a "Reduced Engine Power" warning. While this can be caused by a MAP sensor, it's also a known symptom of a faulty accelerator pedal position sensor, which was subject to a Special Coverage Adjustment (N182188250) for 2016-2018 models. It's important to scan for codes to properly diagnose the issue before replacing parts.
🎬 See how to troubleshoot the Reduced Engine Power warning.Choosing the Right Aftermarket MAP Sensor
When replacing the MAP sensor, you have a choice between Original Equipment (OEM) and aftermarket parts. OEM parts are the same as what your car was built with, offering guaranteed fit and quality, but at a higher price. Aftermarket parts are made by other companies and come in different quality tiers.
- Premium Aftermarket: Brands like ACDelco (which is GM's own parts brand), Bosch, or Delphi often supply the original parts to Chevrolet. Buying these brands can be like getting an OEM part without the dealer price tag.
- Standard Aftermarket (Replacement Brand): Brands like "Replacement" are designed to be a cost-effective alternative. They are direct-fit parts that meet original specifications to get your car running properly again. For a part that is easy to access and replace, a standard aftermarket sensor provides a great value, restoring function without the high cost of an OEM part.
Pro Tip: Check Your Engine
The 2013-2020 Malibu was available with several engines, including the 2.5L, 1.5L Turbo, and 2.0L Turbo. The exact location and part number for the MAP sensor can vary. Always confirm your vehicle's engine before ordering to ensure you get the correct part.
Cost to Replace a Malibu MAP Sensor
Replacing the MAP sensor is a relatively inexpensive repair. The part itself is affordable, and the labor is minimal due to its easy accessibility on most Malibu engines.
| Item | Estimated Cost |
|---|---|
| New OEM Part | $50 - $85 |
| New Aftermarket Part | $30 - $65 |
| Shop Labor | $40 - $140 |
| Total Professional Replacement | $98 - $182 |
Frequently Asked Questions
Where is the MAP sensor located on my 2013-2020 Malibu?
The MAP sensor is almost always mounted directly on the intake manifold. On the 2.5L and 1.5L engines, it's typically on the top side of the plastic intake manifold, held in by a single bolt. 🎬 Watch: Locate the MAP sensor on a 2.5L Malibu engine. You will need to remove the plastic engine cover to see it. It's a small black plastic sensor with an electrical connector.
Can I replace the MAP sensor myself?
Yes, this is a great DIY job for beginners. The replacement typically takes less than an hour and requires only basic tools, like a small socket or Torx bit set. You simply remove the engine cover, unplug the sensor's electrical connector, remove one bolt, pull the old sensor out, install the new one, and reconnect everything.
Are there any recalls for the MAP sensor on the Malibu?
No, there are no specific recalls or technical service bulletins (TSBs) for a faulty MAP sensor on the 2013-2020 Chevrolet Malibu. There was a recall for knock sensor wiring on some 2013 models and special coverage for an accelerator pedal sensor on some 2016-2018 models, which can cause similar performance issues.
Should I clean my old MAP sensor?
While some people attempt to clean MAP sensors, it is generally not recommended or effective. The sensing element is delicate and internal. Unlike a Mass Airflow (MAF) sensor, a MAP sensor cannot be reliably cleaned with sprays. Given the low cost of a new aftermarket sensor, replacement is the best option to ensure a reliable repair.
Helpful Videos
Technical Specifications
OEM Part Numbers: 12707766 12670600 12681993 12650598
The MAP sensor for the 2013-2020 Chevrolet Malibu is a solid-state sensor that provides a variable voltage signal to the ECU based on manifold pressure. It is typically a 3-pin sensor (5V reference, ground, and signal). Some versions may also integrate an Intake Air Temperature (IAT) sensor.
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.
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