Cadillac XTS Engine Camshaft Position Sensor: A Guide for 2013-2019 Models
Experiencing rough idling or a check engine light on your 2013-2019 Cadillac XTS? A failing camshaft position sensor could be the culprit.
- Your 2013-2019 XTS has four camshaft position sensors; use an OBD-II scanner to identify the exact one that failed before buying a part.
- Common failure codes include P0340, P0341, P0345, and P0346.
- For best results and to avoid repeat repairs, choose OEM-grade aftermarket brands like ACDelco or Delphi.
- Replacement is possible for a DIYer with basic tools, but the sensor on the firewall side (Bank 1) is significantly harder to access.
Understanding Camshaft Position Sensor Failure in Your XTS
When a camshaft position sensor in your 2013-2019 Cadillac XTS begins to fail, it sends incorrect or no data to the engine's computer. This can cause a range of noticeable problems, from a simple check engine light to the engine stalling completely. Because the 3.6L V6 engine has four camshaft position sensors (one for each intake and exhaust camshaft), identifying the specific failed sensor through its diagnostic trouble code is crucial before buying a replacement.
Key Failure Symptoms
- Check Engine Light: This is often the first sign. The system will store a trouble code like P0340, P0341, P0345, or P0346, which can be read with an OBD-II scanner. 🎬 Watch: Understanding camshaft sensor codes and diagnostic troubleshooting.
- Rough Idle and Stalling: The engine may run unevenly, shake at a stop, or shut off unexpectedly.
- Difficulty Starting: The engine might crank for longer than usual before starting, or it may not start at all.
- Poor Acceleration: You may notice a significant lack of power or hesitation when you press the gas pedal.
- Reduced Fuel Economy: Incorrect timing can cause the engine to use more fuel than necessary.
Choosing the Right Aftermarket Sensor
When replacing a camshaft position sensor, you have several options. While OEM is always a benchmark, high-quality aftermarket parts can offer excellent performance and value. Here’s a breakdown of the brands available:
- Premium Aftermarket (OEM-Grade): Brands like ACDelco (GM's own parts division) and Delphi are often the original equipment manufacturers. Choosing one of these is the closest you can get to the original part and is highly recommended for reliability. NTK is another well-regarded brand known for its sensor technology.
- Trusted Aftermarket: Brands such as Standard Ignition (SMP) and Walker Products have a long history in the automotive aftermarket and are known for producing reliable engine management components that meet or exceed OE specifications.
- Economy Aftermarket: Brands like Dorman, Holstein, and others offer a cost-effective solution. While they can be a good value, some user reviews occasionally mention fitment or longevity issues, so they are best suited for budget-conscious repairs.
Typical Replacement Costs
The cost to replace a camshaft position sensor can vary based on whether you do it yourself or use a professional mechanic.
| Item | Estimated Cost |
|---|---|
| New Aftermarket Sensor | $25 - $57 |
| New OEM Sensor | $55 - $75 |
| Shop Labor | $73 - $107 (per sensor) |
| Total (Shop Repair) | $108 - $163 (for one sensor) |
Frequently Asked Questions
How many camshaft position sensors does my 2013-2019 Cadillac XTS have?
The 3.6L V6 engine in the Cadillac XTS has four camshaft position sensors. There is one for the intake and one for the exhaust camshaft on each cylinder bank. It is essential to use an OBD-II scanner to read the specific trouble code (e.g., P0341, P0346) to know which of the four sensors has failed.
Can I replace the camshaft position sensor myself?
Yes, this is a DIY-friendly job for many owners. The sensors are held in by a single 10mm bolt. Some are easily accessible after removing the plastic engine cover. 🎬 See this walkthrough for replacing sensors on the 3.6L engine. However, the sensor for Bank 1 (near the firewall) can be difficult to reach due to limited space. 🎬 Watch: Step-by-step guide for replacing the difficult Bank 1 sensor. If you are not comfortable working in tight spaces, you may want to leave it to a professional.
Is there a recall for the camshaft position sensor on the XTS?
No, there are no specific recalls for the camshaft position sensor itself. There was a safety recall (NHTSA 14V116000) for 2013-2014 XTS models concerning a brake booster pump wiring issue that could pose a fire risk, but it is unrelated to the engine sensors.
Should I replace all four sensors at once?
It is not necessary to replace all four sensors if only one has failed. They do not always fail at the same time. The most cost-effective approach is to diagnose the specific faulty sensor using the OBD-II code and replace only that one. However, if the vehicle has very high mileage and the labor is difficult (especially for the firewall-side sensor), some owners may choose to replace them in pairs (both on Bank 1 or Bank 2) as a preventative measure.
Helpful Videos
Technical Specifications
OEM Part Numbers: 12684186 12615371
The sensor is a 3-pin Hall-effect sensor held in place by a single 10mm bolt.
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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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