Chevrolet Silverado 1500 (2015-2024) Engine Crankshaft Position Sensor Failures and Replacement
If your 2015-2024 Silverado is stalling, misfiring, or won't start, the crankshaft position sensor could be the culprit.
- A failing crankshaft sensor on a 2015-2024 Silverado will cause stalling, no-starts, and a Check Engine Light with codes like P0335/P0336.
- For reliable repairs, choose an OEM-equivalent brand like ACDelco or Delphi.
- After replacement, a 'Crankshaft Position Variation Relearn' procedure is mandatory and requires a professional-grade scan tool.
- The sensor is located on the passenger side near the starter, and replacing it often requires removing the starter for access.
Is Your Silverado Stalling or Running Rough?
A failing crankshaft position sensor is a common issue that can cause a range of frustrating problems in the 2015-2024 Chevrolet Silverado 1500. Symptoms often start small, like an occasional hiccup, but can quickly lead to your truck leaving you stranded. Understanding the signs of failure can help you diagnose the problem before it gets worse.
🎬 Watch: 9 common symptoms of a bad crankshaft sensorCommon Symptoms of a Bad Crankshaft Position Sensor:
- Check Engine Light: This is often the first sign. You'll likely see codes like P0335 or P0336.
- Engine Stalling: The engine may stall unexpectedly while driving or at idle and may be difficult to restart.
- No-Start Condition: The engine will crank over but won't fire up because the ECM isn't getting a signal to trigger spark and fuel.
- Rough Idling and Misfires: The truck may shake or vibrate at idle due to incorrect engine timing.
- Poor Acceleration: You might notice a lack of power or hesitation when you press the gas pedal.
- Reduced Fuel Economy: Inefficient engine timing can cause your truck to use more gas.
Choosing the Right Aftermarket Sensor
When it comes to critical electronic parts like the crankshaft position sensor, quality matters. While saving money is tempting, a cheap, unreliable sensor can fail prematurely, leaving you to do the job all over again. For these Silverado models, it's highly recommended to use a sensor from a trusted OEM supplier or a top-tier aftermarket brand.
Brand Quality Tiers for Silverado 1500
- Tier 1 (OEM/OEM-Equivalent): ACDelco and Delphi are the top choices. ACDelco is GM's official parts brand, and Delphi was the original equipment manufacturer for many GM components. Choosing one of these ensures the best fit, performance, and longevity.
- Tier 2 (Reputable Aftermarket): Brands like Hitachi, Standard Ignition (SMP), and Spectra offer a good balance of quality and price. They are well-regarded in the industry and produce reliable sensors that are a solid alternative to OEM.
- Tier 3 (Economy): Brands like Dorman, Walker Products, and Global Parts are budget-friendly options. However, for critical sensors, experiences can be mixed. Some users report premature failures with economy brands, leading to repeated repairs. While they can get you back on the road, consider them a lower-tier choice compared to ACDelco or Delphi.
Pro Tip: The Crankshaft Relearn Procedure
After replacing the crankshaft position sensor on any 2015-2024 Silverado, a Crankshaft Position Variation Relearn procedure is required. This process uses a compatible OBD-II scan tool to sync the new sensor with the engine's computer. Skipping this step will almost always result in a persistent Check Engine Light (often with code P1336), rough running, and poor performance. Most DIY-grade scanners cannot perform this function; it typically requires a professional-grade scan tool.
🎬 Watch: How to perform a modern GM crank relearnCost of Replacement
The cost can vary depending on the brand of the part and local labor rates. The part itself is relatively inexpensive, but labor can add up if you're not doing it yourself.
| Item | Estimated Cost |
|---|---|
| New Aftermarket Sensor | $18 - $75 |
| New OEM (ACDelco) Sensor | $50 - $90 |
| Shop Labor | $150 - $300 |
| Total (Shop Repair) | $200 - $390 |
Frequently Asked Questions
Where is the crankshaft position sensor located on a 2015-2024 Silverado 1500?
The sensor is located on the passenger side of the engine block, down low near the starter motor. To access it, you will need to get under the truck. In many cases, the starter motor must be removed to get enough clearance to remove the sensor's retaining bolt and pull the sensor out.
🎬 See this step-by-step sensor replacement walkthroughCan I drive my Silverado with a bad crankshaft position sensor?
It is not recommended. If the sensor is failing intermittently, it can cause the engine to stall at any time, which is a serious safety risk. If the sensor has failed completely, the truck will not start at all.
Is this a difficult DIY job?
The job is moderately difficult, mainly due to the sensor's location. If you are comfortable working under your truck and removing the starter, it is a feasible DIY project. However, remember that you will need access to a professional scan tool to perform the mandatory crankshaft relearn procedure afterward.
Are there any recalls for this issue?
As of early 2026, there are no specific recalls for the crankshaft position sensor itself on 2015-2024 Silverado 1500 models. However, there was a major recall for 2021-2024 models with the 6.2L V8 engine related to internal crankshaft and connecting rod defects, which are separate issues from the sensor. Always check the NHTSA website for the most current recall information for your specific vehicle.
Helpful Videos
Technical Specifications
OEM Part Numbers: 12623094 12669636
This is a Hall Effect sensor that reads the crankshaft's rotational speed and position from a reluctor wheel. It typically has a 3-pin connector.
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.
- Chevrolet Silverado 1500:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Silverado Stalling or Running Rough?
- Common Symptoms of a Bad Crankshaft Position Sensor:
- Choosing the Right Aftermarket Sensor
- Brand Quality Tiers for Silverado 1500
- Pro Tip: The Crankshaft Relearn Procedure
- Cost of Replacement
- Frequently Asked Questions
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