Engine Camshaft Position Sensor Guide for the 2007-2009 Saturn Aura
Fix stalling, rough idling, and Check Engine Light warnings in your Saturn Aura by understanding and replacing a faulty camshaft position sensor.
- A failing camshaft sensor is a common cause of stalling, hard starts, and a Check Engine Light on the 2007-2009 Saturn Aura.
- For reliability, choose OEM-equivalent brands like ACDelco or Delphi.
- Check for and repair any valve cover oil leaks when replacing the sensor to prevent repeat failure.
- On V6 models, it's wise to replace sensors in pairs to save on future labor and ensure reliability.
Is Your Saturn Aura Stalling or Running Rough?
If your 2007-2009 Saturn Aura is experiencing issues like stalling, difficulty starting, a shaky idle, or a sudden loss of power, a failing engine camshaft position sensor is a common cause. This sensor provides critical timing information to the engine's computer. When it starts to fail, it can disrupt the engine's rhythm, leading to noticeable performance problems. Because these sensors live in the hot, vibrating environment of the engine, they can fail over time from heat exposure or oil contamination.
Symptoms of a Failing Camshaft Position Sensor
A bad camshaft sensor will almost always trigger the Check Engine Light on your dashboard. If you notice any of the following symptoms, it's a good idea to have the vehicle's computer scanned for diagnostic trouble codes (DTCs). Common codes include P0340, P0341, P0365, and P0366.
🎬 Learn how to diagnose and fix a P0340 error code.- Check Engine Light: This is the most common first sign of a problem.
- Engine Stalling: The engine may shut off unexpectedly while you are driving or idling at a stoplight. This is a serious safety concern.
- Hard Starting or No Start: Your Aura may crank for a long time before starting, or it might not start at all.
- Rough Idle and Misfires: The engine may shake, vibrate, or run unevenly when the car is stopped.
- Poor Acceleration: The car may feel sluggish or hesitant when you press the gas pedal.
- Reduced Fuel Economy: Inefficient engine timing can cause the car to burn more fuel than usual.
Oil Leaks Can Cause Sensor Failure
A common cause of camshaft position sensor failure is an oil leak from the valve cover gasket. The leaking oil can seep into the sensor's electrical connector, causing a short or poor connection. When replacing the sensor, always inspect the connector for oil contamination and check the valve cover for leaks. Fixing any oil leaks is crucial to prevent the new sensor from failing prematurely.
Choosing the Right Aftermarket Sensor
When it comes to electronic parts like camshaft sensors, quality matters. While many brands are available, they generally fall into a few quality tiers. For a critical part like this, choosing a higher-quality brand can prevent you from having to do the job twice.
Tier 1: OEM-Equivalent Brands
These brands are often the original equipment manufacturers (OEM) for General Motors or have a reputation for matching OEM quality and reliability. They are the most recommended choice for fit, function, and longevity.
- ACDelco: As the genuine GM parts brand, ACDelco is the direct replacement for the factory part, offering the same performance and durability you'd expect from the original.
- Delphi: A major OEM supplier for GM and other automakers. Delphi parts are known to meet or exceed factory specifications and are considered a top-tier choice.
- Bosch: Another leading OEM supplier with a strong reputation for high-quality electronic components.
Tier 2: Quality Aftermarket Brands
These brands are well-respected in the aftermarket and provide a great balance of quality and value. They are a reliable choice for most repairs.
- Standard Ignition (Standard Motor Products): A long-standing brand known for producing durable and reliable engine management parts.
- NGK (NTK): While famous for spark plugs, their NTK sensor line is also highly regarded and often built to OE standards.
- Hitachi: An OEM for many Japanese brands, Hitachi also produces high-quality sensors for other vehicles with a focus on precision and durability.
Tier 3: Economy Brands
These brands offer the most budget-friendly options. While they can be a good choice for a quick fix or if cost is the primary concern, their long-term reliability can be inconsistent. This tier includes brands like Dorman, Spectra, and various store brands.
Replace in Pairs for V6 Engines
The 3.5L and 3.6L V6 engines in the Saturn Aura have two or four camshaft position sensors (intake and exhaust). If one sensor fails, the others have been exposed to the same heat and wear. It is often recommended to replace them in pairs (both intake or both exhaust) or all at once to ensure reliability and prevent another failure in the near future.
Cost of Replacing a Camshaft Position Sensor
The total cost depends on your engine and whether you do the work yourself or hire a professional. The sensors themselves are relatively inexpensive, but labor costs can vary.
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Sensor | $20.91 - $67.51 |
| New OEM Sensor (ACDelco) | $70 - $103 |
| Shop Labor | $79 - $116 |
| Total Professional Replacement | $149 - $219 |
Frequently Asked Questions (FAQ)
How many camshaft sensors does my Saturn Aura have?
It depends on your engine. The 2.4L 4-cylinder engine has two sensors (one for the intake camshaft, one for the exhaust). The 3.5L V6 has one sensor. The 3.6L V6 has four sensors (one intake and one exhaust for each cylinder bank 🎬 See how to locate and swap sensors on the 3.6L XR.).
Where are the sensors located?
Location varies by engine. On the 2.4L and 3.6L engines, the sensors are typically mounted on the top or side of the cylinder head, near the valve cover, making them relatively easy to access. On the 3.5L V6, the sensor can be much harder to reach, sometimes located under a timing cover, which may require removing the power steering pump to access. Always consult a repair manual for your specific engine.
Can I replace a camshaft position sensor myself?
For the 2.4L and 3.6L engines, this is a very DIY-friendly job 🎬 Watch this step-by-step replacement for the 2.4L EcoTec engine. that usually requires only basic hand tools. The sensor is typically held in by a single bolt. For the 3.5L engine, the replacement can be much more involved and may be best left to a professional if you are not experienced with more complex engine work.
What happens if I don't replace a bad sensor?
Ignoring a failing camshaft position sensor can lead to your engine stalling at any time, which is a major safety risk. It will also cause poor performance, bad fuel mileage, and will prevent your vehicle from passing an emissions test. Eventually, the engine may fail to start at all.
Are there any recalls for this part?
No, there are no specific recalls for the camshaft position sensor on the 2007-2009 Saturn Aura. However, there were several recalls related to transmission shift cables and the Body Control Module that could cause other electrical or drivability issues.
Helpful Videos
Technical Specifications
OEM Part Numbers: 12608424 213-3826 213-3524 12674704
The sensor is typically a Hall-effect sensor held in place by a single 10mm bolt. It uses a 3-pin electrical connector. The number of sensors and their location (intake or exhaust) varies depending on the engine (2.4L, 3.5L, or 3.6L).
We Have This Part in Stock
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.
- Saturn Aura:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Saturn Aura Stalling or Running Rough?
- Symptoms of a Failing Camshaft Position Sensor
- Oil Leaks Can Cause Sensor Failure
- Choosing the Right Aftermarket Sensor
- Tier 1: OEM-Equivalent Brands
- Tier 2: Quality Aftermarket Brands
- Tier 3: Economy Brands
- Replace in Pairs for V6 Engines
- Cost of Replacing a Camshaft Position Sensor
- Frequently Asked Questions (FAQ)
- 🎟️ Get 5% Off