Engine Camshaft Position Sensor Guide for 1996-2005 Buick Century
Solve common stalling, no-start, and poor performance issues in your Buick Century.
- A failing sensor is a common cause of stalling, no-start conditions, and rough running in the 1996-2005 Buick Century.
- Diagnostic trouble codes P0340 and P0341 are the most common indicators of a bad camshaft position sensor.
- For long-term reliability, choosing an OEM-grade brand like ACDelco or a reputable aftermarket brand like Delphi or Standard Motor Products is highly recommended.
- The sensor is located under the power steering pump, and replacement is a manageable DIY job for those with some mechanical experience.
Is Your Buick Century Stalling or Running Rough?
A failing camshaft position sensor in your 1996-2005 Buick Century can cause frustrating and serious issues. These problems often begin intermittently but can worsen, potentially leaving you stranded. Because the sensor's signal is essential for the engine to run, a bad signal can make the car difficult or even impossible to drive. Common symptoms include the check engine light coming on, the engine cranking but not starting, sudden stalling, a rough idle, and poor acceleration.
Don't Ignore Stalling
An engine that stalls unexpectedly, especially while driving, is a major safety hazard. This is a common symptom of a failing camshaft position sensor and should be addressed immediately to avoid risk.
Choosing the Right Aftermarket Camshaft Sensor
When it comes to electronic sensors, quality matters. While budget-friendly options are available, many mechanics and experienced owners recommend sticking with brands known for reliability to avoid doing the job twice. For a critical part like the camshaft position sensor, using a poor-quality part can lead to the same symptoms returning shortly after the repair.
Brand Quality Tiers
- Tier 1: OEM-Grade (Recommended)
Brands like ACDelco (the original GM parts supplier) and Delphi are often the manufacturers of the original part. Choosing these ensures the best fit and performance. Other premium aftermarket brands like Hitachi and NGK/NTK are also highly regarded for their sensor quality. - Tier 2: Reputable Aftermarket
Brands such as Standard Motor Products (SMP) and Walker Products offer a good balance of quality and price. They are well-known in the aftermarket and generally considered reliable replacements. Dorman is another popular option, though reviews can be mixed, with some parts working perfectly and others having fitment or longevity issues. - Tier 3: Budget-Friendly
This category includes many lower-priced brands. While the low cost is appealing, these sensors have a higher reported failure rate. They can be a choice if the budget is the primary concern, but be aware that you might be replacing the part again sooner than you'd like.
Pro Tip: Before replacing the sensor, always inspect the wiring and connector. On older vehicles like the Buick Century, the wiring insulation can become brittle and crack, or the connector can become loose or corroded, causing the exact same symptoms as a failed sensor. Sometimes, fixing the wiring is all that's needed.
Cost to Replace the Camshaft Position Sensor
The cost consists of the part itself and labor if you have a shop perform the work. The part price varies significantly by brand.
| Item | Price Range |
|---|---|
| New Aftermarket Part | $23.27 - $113.52 |
| Shop Labor | $75 - $150 |
Frequently Asked Questions (FAQ)
Where is the camshaft position sensor located on my Buick Century?
On the common 3.1L V6 engine, the camshaft position sensor is located on the front of the engine, underneath the power steering pump. To access it, the power steering pump must be unbolted 🎬 See how to access the sensor on a 1998 Buick Century. and moved aside.
What does a P0341 or P0340 code mean?
These are the most common trouble codes for a camshaft position sensor issue. P0340 indicates a general malfunction in the sensor's circuit, while P0341 points to a performance or range problem, meaning the signal is inconsistent or not what the computer expects to see. 🎬 Learn more about diagnosing and fixing the P0341 trouble code. This can be caused by a bad sensor, wiring issues, or even a stretched timing chain in some cases.
Can I replace this sensor myself?
Yes, this is a DIY-feasible job for someone with moderate mechanical skill. The main challenge is accessing the sensor by moving the power steering pump. You will need a basic socket set. The job typically takes about an hour.
🎬 Watch this step-by-step guide to replacing the sensor on GM V6 engines.Are there any recalls for this part?
A search of the National Highway Traffic Safety Administration (NHTSA) database shows no specific recalls for the camshaft position sensor on the 1996-2005 Buick Century. However, there is a service bulletin (PI0090D) for similar GM V6 engines regarding intermittent hesitation caused by poor connections at the sensor, highlighting the importance of checking the wiring.
Helpful Videos
Technical Specifications
OEM Part Numbers: 10465298 19331451 213-155
The sensor for the 3.1L V6 is a magnetic Hall-effect sensor. It is mounted on the front of the engine block, reading the camshaft's position to provide a digital signal to the ECM.
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.
- Buick Century: