GMC Acadia (2007-2016) Manifold Absolute Pressure (MAP) Sensor Guide
Experiencing poor fuel economy or a rough idle in your Acadia? Your MAP sensor might be the culprit.
- A bad MAP sensor on your Acadia will cause a check engine light (often code P0106), poor gas mileage, and rough running.
- The sensor is located on top of the intake manifold and is extremely easy to replace yourself with just one bolt.
- Do not try to clean the sensor; it is a sensitive electronic part that should be replaced if faulty.
- For best results, choose a quality aftermarket brand like ACDelco, Bosch, Delphi, or Standard Motor Products.
Is Your Acadia's Engine Acting Up?
If you own a first-generation GMC Acadia, you might eventually face issues with engine sensors. A failing Manifold Absolute Pressure (MAP) sensor is a common problem that can cause noticeable performance issues. It leads to an incorrect air-fuel mixture, which can make your SUV run poorly. The good news is that this is a straightforward part to diagnose and replace.
Symptoms of a Bad MAP Sensor in a GMC Acadia
When the MAP sensor starts to fail, your Acadia's computer receives incorrect information about engine load. This can cause a variety of symptoms:
- Check Engine Light: This is the most common sign. A scan will often reveal codes like P0106, P0107, or P0108. Code P0106 indicates a performance range issue with the sensor.
- Poor Fuel Economy: An incorrect sensor reading can cause the engine to use more fuel than necessary.
- Rough Idle: Your engine might shake, vibrate, or struggle to maintain a steady RPM when stopped. 🎬 Watch: A breakdown of common bad MAP sensor symptoms
- Hesitation and Reduced Power: Your Acadia may feel sluggish when you accelerate and won't have its usual power.
- Black Smoke from Exhaust: In some cases, a very rich fuel mixture caused by a bad sensor can result in black smoke from the tailpipe.
- Hard Starting: A faulty sensor can make the engine difficult to start.
Check for Other Issues First
Symptoms of a bad MAP sensor can be similar to other problems, like vacuum leaks or a dirty Mass Airflow (MAF) sensor. 🎬 See how a dirty throttle body can trigger MAP codes It's a good idea to inspect vacuum hoses for cracks or loose connections before replacing the MAP sensor.
Choosing a New Aftermarket MAP Sensor
For a simple electronic sensor like the MAP, you don't always need to buy the expensive OEM part from a dealer. Many aftermarket brands offer excellent quality, often from the same factories that supply GM. Here’s a breakdown of your options:
Tier 1: OEM-Level Quality
These brands are known to be original equipment suppliers for GM or produce parts that meet or exceed OEM standards. They are the most reliable choices.
- ACDelco: Often the original part in a different box. ACDelco GM Original Equipment is the highest tier, while their Professional line is a quality aftermarket alternative.
- Bosch: A major OEM supplier for many manufacturers, known for high-quality sensors.
- Delphi: Another top-tier company that was once part of GM. They are a trusted name in automotive electronics.
Tier 2: Reputable Aftermarket Brands
These brands are trusted by many mechanics and offer a great balance of quality and price.
- NGK/NTK: Known for their spark plugs, their sensor division (NTK) produces reliable electronic parts.
- Standard Motor Products (SMP): A long-standing company with a solid reputation for producing dependable aftermarket parts.
- Spectra: Offers a wide range of engine management components with good quality control.
Tier 3: Value-Focused Brands
These brands provide a more affordable option. They can be a good choice for older, higher-mileage vehicles, but part longevity may vary.
- Walker Products
- Facet
- Global Parts, True Tech
Pro Tip: OEM vs. Aftermarket
For a critical sensor like the MAP, sticking with Tier 1 or Tier 2 brands is highly recommended. Brands like ACDelco, Delphi, and Bosch offer peace of mind and are less likely to cause compatibility issues with your Acadia's computer system. Cheaper sensors can sometimes have a shorter lifespan or provide slightly inaccurate readings, negating the initial savings.
Cost of Replacing a GMC Acadia MAP Sensor
Here is a general cost estimate for replacing the MAP sensor on a 2007-2016 GMC Acadia. Prices can vary based on your location and the specific brand you choose.
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket MAP Sensor | $39.20 - $67.73 |
| New OEM (Dealer) MAP Sensor | $70 - $120 |
| Shop Labor | $50 - $100 |
| Total DIY Cost (Aftermarket) | $39.20 - $67.73 |
| Total Shop Cost (Aftermarket) | $90 - $170 |
Frequently Asked Questions
Where is the MAP sensor located on a 2007-2016 GMC Acadia?
The MAP sensor is typically located on the top front of the engine's intake manifold, making it very easy to access. It is a small sensor held in by one bolt with an electrical connector attached.
🎬 Watch: Step-by-step guide to replacing your Acadia's MAP sensorCan I clean my Acadia's MAP sensor?
It is generally not recommended to clean a MAP sensor, especially with chemical cleaners or compressed air. These sensors are sensitive and can be easily damaged. If the sensor is faulty, replacement is the only reliable solution.
Are there any recalls for the GMC Acadia MAP sensor?
There are no specific recalls for the MAP sensor on the 2007-2016 GMC Acadia. However, there is a Technical Service Bulletin (TSB) for some GM trucks (20-NA-043) that mentions ice can form on the MAP sensor in freezing temperatures, causing a P0106 code. While this TSB doesn't specifically list the Acadia, the issue could potentially occur in very cold climates.
What happens if I don't replace a bad MAP sensor?
Continuing to drive with a bad MAP sensor is not recommended. You will experience poor engine performance and bad fuel economy. Over time, running a rich or lean fuel mixture can damage other expensive components, like your spark plugs and catalytic converters.
Helpful Videos
Technical Specifications
OEM Part Numbers: 12644228 12591290
3-prong blade male terminal with female connector.
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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.
- GMC Acadia:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Acadia's Engine Acting Up?
- Symptoms of a Bad MAP Sensor in a GMC Acadia
- Check for Other Issues First
- Choosing a New Aftermarket MAP Sensor
- Tier 1: OEM-Level Quality
- Tier 2: Reputable Aftermarket Brands
- Tier 3: Value-Focused Brands
- Pro Tip: OEM vs. Aftermarket
- Cost of Replacing a GMC Acadia MAP Sensor
- Frequently Asked Questions
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