Chevrolet HHR Manifold Absolute Pressure (MAP) Sensor Guide (2006-2011)
Understanding the MAP sensor in your HHR is key to fixing poor performance and bad fuel economy.
- A bad MAP sensor on an HHR causes rough idle, poor acceleration, bad gas mileage, and will turn on the Check Engine Light.
- For the 2.2L/2.4L engines, the sensor is behind the throttle body and may require removing it for access.
- Stick with reputable brands like ACDelco, Delphi, or Bosch for best results, as cheap sensors can fail prematurely.
- Always check for related issues like vacuum leaks or a dirty throttle body before replacing the sensor.
Is Your HHR Running Rough? It Could Be the MAP Sensor.
If your 2006-2011 Chevrolet HHR is idling poorly, hesitating when you accelerate, or getting worse gas mileage, a failing Manifold Absolute Pressure (MAP) sensor could be the culprit. This small sensor plays a big role in how your engine performs. When it fails, it sends incorrect information to the engine's computer, leading to a host of noticeable problems. Ignoring a bad 🎬 Watch this guide on common MAP sensor failure symptoms. MAP sensor can cause the engine to run too rich (too much fuel) or too lean (not enough fuel), which can potentially lead to engine damage over time.
Symptoms of a Failing MAP Sensor in a Chevy HHR
A bad MAP sensor can't be identified just by looking at it, but it will cause symptoms that you can see and feel. The most obvious sign is the Check Engine Light. If the light is on, getting the codes read with an OBD2 scanner is the first step. Codes like P0106, P0107, and P0108 often point directly to a MAP sensor issue.
🎬 Learn how to diagnose and fix a P0106 engine code.- Rough or Erratic Idle: The engine may shake or stumble when you're stopped at a light.
- Poor Acceleration: You might notice a delay or sluggishness when you press the gas pedal.
- Stalling: In some cases, the engine may stall, especially at idle.
- Bad Fuel Economy: An incorrect air-fuel mixture caused by a faulty sensor can make your HHR burn more gas than usual.
- Failed Emissions Test: Incorrect fuel mixture can lead to excess exhaust emissions.
- Black Smoke from Exhaust: This indicates the engine is running rich, a common result of a failed MAP sensor.
Don't Mistake It for Other Problems
Symptoms of a bad MAP sensor can be similar to other issues, like a vacuum leak, a dirty throttle body, or a failing Mass Air Flow (MAF) sensor. It's important to properly diagnose the problem before replacing parts. Sometimes, simply cleaning the sensor or its electrical connector can resolve the issue.
Choosing the Right Aftermarket MAP Sensor for Your HHR
When it's time to replace the MAP sensor, you have several options. While the original ACDelco part is a safe bet, high-quality aftermarket brands can offer similar performance for less money. For critical electronic sensors, it's wise to stick with reputable manufacturers.
Tier 1: OEM or OEM-Equivalent Brands
- ACDelco: As the original GM parts supplier, this is the benchmark for quality and fit. Some ACDelco parts may be manufactured by other companies like Bosch.
- Delphi: Delphi was once part of GM and is a major original equipment manufacturer (OEM) for many GM parts. They are widely considered a top-tier choice, offering OEM quality.
- Bosch: A well-respected German brand that is also an OEM for many manufacturers, including GM. Their sensors are known for reliability.
Tier 2: Reputable Aftermarket Brands
- NGK/NTK: NTK is the sensor division of NGK, a brand famous for its spark plugs. They produce high-quality sensors that are a reliable alternative to OEM.
- Standard Motor Products (SMP): A long-standing company that offers a wide range of quality aftermarket parts.
- Walker Products: Another established brand in the aftermarket for fuel and engine management components.
Tier 3: Budget Brands
- Brands like Facet, Global Parts, MTC, and True Tech fall into a more budget-friendly category. While they can save you money upfront, their long-term reliability can be a gamble. For a critical sensor like the MAP, it's often better to invest in a more reputable brand to avoid having to do the job twice.
Pro Tip: Check the Part Number
The HHR had different engines, including the 2.2L, 2.4L, and the 2.0L Turbo in the SS model. Always verify the OEM part number for your specific vehicle before ordering an aftermarket part to ensure compatibility.
Cost of Replacing an HHR MAP Sensor
Replacing the MAP sensor is a relatively affordable repair. The main cost difference comes from the brand of the part you choose and whether you do it yourself or hire a mechanic.
| Item | Estimated Cost |
|---|---|
| New OEM (ACDelco) | $45 - $85 |
| New Aftermarket | $39 - $95 |
| Shop Labor | $61 - $140 |
| Total Professional Replacement | $136 - $239 |
Frequently Asked Questions (FAQ)
Where is the MAP sensor located on a 2006-2011 Chevy HHR?
On the 2.2L and 2.4L Ecotec engines, the MAP sensor is located on the intake manifold, just behind the throttle body. It can be difficult to access, and some mechanics recommend removing the throttle body to get to it.
Can I replace the HHR MAP sensor myself?
Yes, this is a DIY-friendly job for someone with basic mechanical skills. The main challenge is the sensor's tight location. You will need to remove the air filter box and intake tube 🎬 See a step-by-step walkthrough of the HHR MAP sensor removal. to get access. The sensor itself is typically held in by a clip or a single bolt. After replacement, it's a good idea to clear the engine codes with a scanner or by disconnecting the battery for a few minutes.
Are there any recalls for the Chevy HHR MAP sensor?
No, there are no specific recalls from the NHTSA for the MAP sensor on the 2006-2011 Chevrolet HHR. Searches for recalls and Technical Service Bulletins (TSBs) did not find any issues directly related to a widespread MAP sensor failure for this vehicle.
Should I clean the MAP sensor before replacing it?
Yes, sometimes a MAP sensor can get dirty with carbon buildup, causing incorrect readings. You can try cleaning it with a dedicated Mass Air Flow or electronic parts cleaner. If cleaning doesn't solve the problem, replacement is the next step.
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Technical Specifications
OEM Part Numbers: 55573248 12614970 16212460 12592016 19418807
The MAP sensor on the Chevrolet HHR is a solid-state electronic sensor that measures pressure changes in the intake manifold. It sends a variable voltage signal to the ECU, which typically operates within a 5-volt reference range. The sensor for the 2.2L and 2.4L engines is located directly on the intake manifold.
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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.
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