Solving Manifold Absolute Pressure Sensor Issues on Your 2007-2009 Chrysler Aspen
Address poor engine performance and bad gas mileage by understanding this critical sensor on your Aspen.
- A bad MAP sensor on an Aspen commonly causes a check engine light, rough idle, and poor gas mileage.
- Replacement is a very simple DIY task, usually taking less than 15 minutes with basic tools.
- Before replacing, check for vacuum leaks, as they can cause similar symptoms.
- Premium aftermarket brands like Delphi or NGK offer OEM-level quality for a lower price than Mopar.
Symptoms of a Failing MAP Sensor in a Chrysler Aspen
When the MAP sensor starts to fail, it sends incorrect information to your Aspen's computer. This can cause a variety of noticeable problems. You should suspect a bad MAP sensor if you experience one or more of the following issues.
- Check Engine Light: A failing MAP sensor will almost always trigger the check engine light. Common trouble codes include P0106, P0107 (low voltage), and P0108 (high voltage).
- Rough Idle: Your Aspen may idle erratically, with the engine shaking or struggling to maintain a steady RPM.
- Poor Fuel Economy: If you're suddenly getting worse gas mileage, a bad MAP sensor could be telling the engine to use more fuel than it needs.
- Lack of Power & Hesitation: The vehicle may feel sluggish, hesitate when you press the gas pedal, or have trouble accelerating smoothly.
- 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.
- Failed Emissions Test: An incorrect air-fuel mixture will often cause a vehicle to fail an emissions test.
Check for Vacuum Leaks First
Symptoms of a bad MAP sensor can be very similar to those of a vacuum leak in the intake system. Before replacing the sensor, it's a good idea to have the vacuum lines inspected for cracks or loose connections.
Choosing the Right Aftermarket MAP Sensor
For the 2007-2009 Chrysler Aspen, you have several options when it comes to replacing your MAP sensor. The original part is made by Mopar, but many aftermarket brands offer quality alternatives at a lower price.
Brand Quality Tiers
- OEM/Premium Aftermarket: Mopar is the original equipment manufacturer (OEM) and guarantees a perfect fit and function. Brands like Delphi and NGK (NTK) are well-regarded premium aftermarket suppliers that often manufacture original parts for car companies. They are known for their quality and reliability.
- Quality Aftermarket: Brands like Standard Ignition (Standard Motor Products) and Walker Products have a long history of producing reliable replacement parts that meet or exceed OEM specifications.
- Economy Brands: Brands like Holstein, Global Parts, and other lesser-known names offer a budget-friendly solution. While they can be a good value, their long-term durability may not match that of the premium brands.
OEM vs. Aftermarket for the Aspen
For a critical sensor like the MAP, sticking with a reputable brand is recommended. While the Mopar sensor is the benchmark, premium aftermarket brands like Delphi and NGK offer a great balance of high quality and a more affordable price point. Given the simple installation, paying a little extra for a quality part can prevent you from having to do the job again soon.
Cost to Replace a Chrysler Aspen MAP Sensor
Replacing the MAP sensor is one of the more affordable repairs you can perform on your Aspen. The part itself is not very expensive, and labor is minimal due to its easy accessibility.
| Part/Service | Estimated Cost |
|---|---|
| New OEM (Mopar) Part | $97 - $149 |
| New Aftermarket Part | $29 - $130 |
| Shop Labor Cost | $49 - $72 |
| Total Professional Replacement | $110 - $156 (using aftermarket part) |
Frequently Asked Questions
Where is the MAP sensor located on a 2007-2009 Chrysler Aspen?
The MAP sensor is located on the top of the intake manifold, near the front of the engine. It is typically held in place by one or two small bolts and has an electrical connector plugged into it. It is very easy to access on both the 4.7L and 5.7L V8 engines.
Can I clean my MAP sensor instead of replacing it?
While some owners attempt to clean their MAP sensor, it is generally not recommended. The internal components are delicate and can be damaged by cleaning agents or compressed air. Given the relatively low cost of a new sensor, replacement is the most reliable solution.
Is replacing the MAP sensor a DIY job?
Yes, this is an excellent DIY job for beginners. The only tools typically needed are a small socket wrench to remove the mounting bolt(s). The process involves unplugging the electrical connector, unbolting the old sensor, bolting the new one in place, and reconnecting the electrical plug. The entire job usually takes less than 15 minutes.
Are there any recalls for the Chrysler Aspen MAP sensor?
A search of the National Highway Traffic Safety Administration (NHTSA) database shows no recalls specifically for the Manifold Absolute Pressure Sensor on the 2007-2009 Chrysler Aspen.
Technical Specifications
OEM Part Numbers: 56041018AD 56041018AC
3-pin, oval connector, bolt-on mount. Fits both 4.7L and 5.7L V8 engines for the 2007-2009 model years.
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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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