Buick Rendezvous Crankshaft Position Sensor: A Guide for 2002-2007 Models
Solving stalling, no-start, and rough running issues in your Buick Rendezvous starts with this critical sensor.
- A failing sensor will cause a no-start or sudden stalling condition, which is a major safety concern.
- For reliability, choose an OEM-quality brand like ACDelco or Delphi; this is not a part to save money on.
- Replacement on the 3.4L V6 is moderately difficult, requiring removal of the harmonic balancer.
- A "Crankshaft Variation Relearn" procedure with a scan tool is required after installation for proper performance.
Is Your Rendezvous Stalling or Refusing to Start?
A failing crankshaft position sensor is a common reason for a Buick Rendezvous that cranks but won't start, or one that stalls unexpectedly while driving. Because this sensor is essential for engine operation, its failure will cause immediate and noticeable problems. Recognizing the symptoms early can help you pinpoint the issue before you get stranded.
Top 5 Failure Symptoms
- Check Engine Light: This is often the first sign. The most common trouble code is P0335, which directly points to a fault in the crankshaft position sensor circuit.
- Engine Will Not Start: You'll turn the key and the engine will crank over and over, but it will never fire up. This happens because the computer receives no signal and won't activate the fuel injectors or spark plugs.
- Sudden Stalling: The engine may shut off without warning while you are driving or idling at a stoplight. This is a serious safety risk.
- Rough Idle and Misfires: Your Rendezvous may shake, stumble, or run very poorly, especially when stopped. This is due to incorrect spark and fuel timing.
- Poor Acceleration: The vehicle may feel sluggish, hesitate, or lack power when you press the gas pedal.
Known Issue: Check for TSB Before Replacing
General Motors issued a Technical Service Bulletin (TSB 17-NA-156) for some vehicles that show a P0336 trouble code. This code can be caused by electrical interference, not a faulty sensor. The official fix is to have a dealer reprogram the Engine Control Module (ECM) with an updated calibration. If your vehicle has this specific code, it's wise to investigate this TSB before spending money on a new part.
Choosing the Right Aftermarket Sensor for Your Rendezvous
When replacing a critical sensor like this, brand quality matters. The part has to be precise and durable. For a 2002-2007 Buick Rendezvous, which often has the GM 3.4L V6 engine, using a proven brand is highly recommended to avoid doing the job twice.
Brand Quality Tiers
- Tier 1 (OEM/Premium): ACDelco and Delphi are your best bets. ACDelco is GM's own parts brand, and Delphi was the original equipment manufacturer for many of the electronics on your vehicle. Choosing one of these provides the highest confidence in fit, performance, and longevity.
- Tier 2 (Reputable Aftermarket): Brands like Bosch, NGK, and Standard Motor Products (SMP) have a strong reputation for producing quality electronic components that meet or exceed OEM standards. They are a reliable alternative if an OEM-supplier part is not available.
- Tier 3 (Value Brands): This category includes many other brands available at lower prices. While tempting, the quality can be inconsistent for a sensor this critical. Forum discussions among GM owners frequently warn against using budget sensors, as they can fail prematurely or be dead-on-arrival.
A Note on Replacement
On the common 3.4L V6 engine, the crankshaft sensor is located behind the harmonic balancer pulley. This means the passenger-side wheel, splash shield, serpentine belt, and the main pulley must be removed for access, which requires a special puller tool. 🎬 See this walkthrough for replacing the sensor on a 3.4L engine After installation, a "Crankshaft Variation Relearn" procedure is often required. This procedure must be done with a professional-grade scan tool to sync the new sensor with the engine computer. Failure to perform the relearn can result in a persistent check engine light or poor performance.
Cost to Replace a Buick Rendezvous Crankshaft Position Sensor
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Part | $18 - $131 |
| Shop Labor | $134 - $197 |
| Total Professional Replacement | $206 - $347 |
Frequently Asked Questions
Can I drive my Rendezvous with a bad crankshaft sensor?
No, it is not recommended. The risk of the engine stalling at any time, including at high speeds or in traffic, makes it a significant safety hazard. If the sensor has failed completely, the vehicle will not start at all.
Where is the crankshaft position sensor located on a Buick Rendezvous?
On the most common engine, the 3.4L V6, the sensor is mounted on the engine block, low on the passenger side, behind the main crankshaft pulley (harmonic balancer). Access requires removing the pulley.
What is a "crank relearn" and is it necessary?
A crank relearn, or Crankshaft Variation Relearn, is a calibration procedure that syncs the new sensor's signal with the engine computer. It is highly recommended after replacing the sensor on these GM vehicles to ensure accurate timing and prevent trouble codes. This procedure requires a compatible bi-directional scan tool.
🎬 Watch: How to perform a crankshaft variation relearn procedureCould something else cause a P0335 code?
Yes. Besides a bad sensor, the code can be caused by damaged wiring or a corroded connector. Always inspect the wiring harness and connector for issues 🎬 Watch: How to check your wiring before replacing the sensor before replacing the part. Oil leaks from other gaskets can also damage the sensor and its wiring over time. Also, check for TSBs related to your specific issue, as a software update may be the solution.
Helpful Videos
Technical Specifications
OEM Part Numbers: 10456161 12575483 24508213
Magnetic Sensor, 2-Pin Connector
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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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