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2015-2025 GMC Yukon XL Manifold Absolute Pressure (MAP) Sensor Guide

Solve rough idling, poor fuel economy, and check engine lights by understanding and replacing your Yukon XL's MAP sensor.

4 minutes to read 2015-2025 GMC Yukon XL
Difficulty
1/5
Est. Time
0.5 hrs
DIY Doable?
✅ Yes
Shop Labor
$47-$140
Used OEM Price
$20-$40
⚠️ Drivable, but... — You can drive, but performance will be poor, fuel use will be high, and stalling is possible, which can be a safety risk.
Key Takeaways
  • A failing MAP sensor commonly causes a Check Engine Light with codes P0106, P0107, or P0108.
  • Symptoms include rough idle, poor MPG, hesitation, and sometimes black exhaust smoke.
  • Replacement is very easy for a DIYer and takes less than 30 minutes.
  • For best results, choose an OEM/OES brand like Delphi or NGK to ensure proper calibration and avoid repeat failures.
The Manifold Absolute Pressure (MAP) sensor on your GMC Yukon XL is a vital part of the engine management system. It constantly measures the air pressure inside the engine's intake manifold. This information tells the vehicle's main computer, the Engine Control Unit (ECU), how much load or stress is on the engine. The ECU uses this data to perfectly balance the air-fuel mixture and adjust ignition timing. This ensures your Yukon XL's engine runs with optimal power, performance, and fuel efficiency.

Is Your MAP Sensor Failing?

Comparison between a clean new MAP sensor and a failed sensor clogged with carbon and oil deposits.
A healthy MAP sensor (left) has a clear sensing port, while a failing sensor (right) often shows significant carbon buildup or oil contamination that prevents accurate pressure readings.

A bad MAP sensor sends wrong information to your Yukon XL's computer, leading to noticeable problems. The most common sign is a Check Engine Light, but you might experience other performance issues first. Ignoring these symptoms can lead to higher fuel costs, failed emissions tests, and potential engine damage over time.

Check for Vacuum Leaks First

Before you replace the MAP sensor, carefully inspect all the rubber vacuum hoses connected to the intake manifold. A cracked, loose, or disconnected hose can cause a vacuum leak, which creates symptoms almost identical to a bad MAP sensor. This simple check can save you from buying a part you don't need.

Choosing the Right Aftermarket MAP Sensor

A high-quality aftermarket MAP sensor from a reputable brand like Delphi or NGK in its retail packaging.
Choosing premium brands like Delphi or NGK ensures the sensor meets OEM calibration standards, which is critical for the Yukon XL's engine management system.

When it comes to engine sensors, quality and correct calibration are critical for your Yukon XL's performance. While budget parts are available, they can be a gamble.

  • Top Tier (OEM/OES Quality): Brands like Delphi and NGK are highly recommended. Delphi was a major original parts supplier for GM, so their parts are often identical to the factory component. NGK is also known for making high-quality, reliable sensors. These brands cost more but provide the best guarantee of proper function and longevity.
  • Mid-Tier (Reliable Aftermarket): Standard Ignition (SMP) is a well-regarded aftermarket brand that offers a good balance of quality and price. They are a solid choice if an OEM-level part isn't in the budget.
  • Budget Tier (Use with Caution): Brands like Facet, Global Parts, and Spectra fall into the economy category. While the price is low, the quality and calibration can be inconsistent. These parts carry a higher risk of premature failure or causing the same performance issues you're trying to fix.

Known Issues for 2015-2025 GMC Yukon XL

The engine bay of a GMC Yukon XL with the engine cover removed to show the intake manifold area.
GM has issued bulletins for the Yukon XL regarding erratic MAP signals and even ice formation on the sensor in freezing climates, which can trigger 'Reduced Engine Power' modes.

While no widespread recalls exist for the MAP sensor itself, General Motors has issued Technical Service Bulletins (TSBs) related to it. Service update N212332660 was released for some 2021 models, including the Yukon XL, due to erratic signals from the MAP sensor that could trigger codes P0106 and P0108 🎬 Watch this guide on fixing MAP sensor fault codes., requiring a replacement. Another TSB (20-NA-043) notes that on 2017-2020 models, ice can form on the sensor in freezing weather, causing a P0106 code and a "Reduced Engine Power" message. This indicates that GM is aware of potential sensor vulnerabilities on this vehicle platform.

Installation is DIY-Friendly

Replacing the MAP sensor on a 2015-2025 Yukon XL is a great job for beginners. On the 5.3L and 6.2L V8 engines, the sensor is located on the top front or rear of the intake manifold and is easily accessible after removing the plastic engine cover. It's typically held by one small bolt. The entire job can usually be done in under 30 minutes with basic hand tools.

🎬 See a step-by-step MAP sensor replacement video.

Cost to Replace a MAP Sensor on a 2015-2025 GMC Yukon XL

Part/Service Estimated Cost
New Aftermarket Part $36.14 - $96.83
New OEM Part (ACDelco) $45 - $125
Shop Labor $47 - $140
Total Professional Replacement $92 - $265

Frequently Asked Questions (FAQ)

Close-up of the MAP sensor installed on the intake manifold of a GMC Yukon XL V8 engine.
The MAP sensor is easily accessible on the Yukon XL's V8 engine once the plastic beauty cover is removed. It is held in place by a single bolt and an electrical connector.
Where is the MAP sensor located on my Yukon XL?

On most 2015-2025 Yukon XL models with V8 engines, the MAP sensor is on top of the intake manifold, either at the front or the back of the engine. You will need to remove the plastic engine cover to see it. It is a small black plastic sensor plugged directly into the manifold.

🎬 Watch a video showing the exact MAP sensor location.
What does the code P0106 mean?

The trouble code P0106 means the signal from your MAP sensor is erratic or out of its expected range. Your vehicle's computer compares the MAP sensor reading to other sensors, and if the value doesn't make sense for the current engine speed and throttle position, it triggers this code. This is a very common code for a failing MAP sensor on a Yukon.

Can I just clean my MAP sensor?

While some sensors like the Mass Airflow (MAF) sensor can be cleaned, it is generally not recommended for a MAP sensor. The internal components are delicate and cannot be serviced. If the sensor is providing faulty readings, it needs to be replaced.

Is an OEM sensor better for my Yukon XL?

For critical electronic sensors, using an OEM (ACDelco) or OES (Original Equipment Supplier) part like Delphi is highly recommended. These parts are built to the exact specifications and calibration your Yukon's computer expects. While they cost more than some aftermarket options, they provide the highest reliability and prevent future performance issues.

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Technical Specifications

OEM Part Numbers: 12711681 24000470 55505514

The MAP sensor for the 2015-2025 GMC Yukon XL is typically a 3-pin sensor that mounts directly to the intake manifold. It operates on a 5-volt reference from the PCM and sends back a variable voltage signal between 1 and 4.5 volts depending on engine load.

Wrenchy
Article researched & written by
Wrenchy
Go-Parts' AI research assistant. Every article is backed by live web research, verified OEM data, and real technician knowledge — so you get accurate, up-to-date information you can trust.
Meet Wrenchy → Updated May 31, 2026

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.

Year Coverage
This article covers the Manifold Absolute Pressure Sensor for:
  • GMC Yukon XL: 20152016201720182019202020212022202320242025
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