Chevrolet Traverse 2009-2023 Engine Crankshaft Position Sensor Replacement Guide
Fix stalling, no-start conditions, and Check Engine lights on your Traverse by understanding and choosing the right crankshaft sensor.
- A failing crankshaft sensor is a common cause of no-start or stalling issues in the 2009-2023 Traverse.
- Replacement requires accessing the sensor from under the vehicle, behind a heat shield near the transmission.
- A 'crankshaft variation relearn' procedure with a scan tool is necessary after replacement to avoid performance issues.
- For reliability, choose premium aftermarket brands like Delphi, Bosch, or NGK over the cheapest options.
Is Your Traverse Stalling or Not Starting?
A failing crankshaft position sensor is a common reason for a Chevrolet Traverse to crank but not start, or to stall unexpectedly while driving. These symptoms can start out as minor annoyances but can quickly become a serious safety issue, leaving you stranded. This guide will help you understand the symptoms, choose a reliable aftermarket replacement, and know what the replacement job involves for your 2009-2023 Traverse.
Known Issues & TSBs
While no direct recalls exist for the crankshaft position sensor itself, some related issues have been noted. A Technical Service Bulletin (TSB 17-NA-317) was issued for 2018 models for stalling, rough idle, and various trouble codes. The fix involves replacing a section of the engine wiring harness with a twisted-pair jumper to shield the crankshaft sensor circuit from electrical interference. Additionally, some earlier models have a known issue where the crankshaft reluctor wheel can move, causing timing-related codes (like P0016), which can be misdiagnosed as a bad sensor.
Choosing the Right Aftermarket Sensor
When it comes to critical engine sensors, quality matters. While OEM ACDelco is the factory part, several aftermarket brands offer a good balance of quality and value. For a vital component like this, it's wise to avoid the cheapest options, which can fail prematurely.
Brand Quality Tiers for Chevrolet Traverse
- Premium Aftermarket (Recommended): Brands like Delphi, Bosch, and NGK/NTK are often original equipment manufacturers for many car brands. They are engineered to meet or exceed factory specifications and are the most reliable choice outside of buying a genuine ACDelco part.
- Quality Aftermarket: Brands such as Standard Motor Products (SMP) and Hitachi offer dependable parts that are a solid step up from budget options. They provide a good mix of performance and price for Traverse owners.
- Economy/Value: Brands like Dorman and other lower-priced online options can be a viable choice if budget is the primary concern. However, for a sensor that can leave you stranded, spending a little more for a premium brand is often a worthwhile investment in reliability.
Pro Tip: The Crankshaft Relearn Procedure
After replacing the crankshaft position sensor on your Traverse, a "Crankshaft Position Variation Relearn" procedure is often required. This process, which requires a compatible OBD-II scan tool, calibrates the new sensor to your engine's computer. Skipping this step can result in a persistent Check Engine Light (with code P1336), rough running, and poor performance even with the new part installed.
Cost of Replacing the Crankshaft Position Sensor
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Part | $22 - $156 |
| Shop Labor | $100 - $200 |
| Total Estimated Cost (DIY) | $22 - $156 |
| Total Estimated Cost (Installed) | $122 - $356 |
Frequently Asked Questions
Where is the crankshaft position sensor located on a Traverse?
The crankshaft position sensor on the 3.6L V6 engine is located on the rear of the engine block, near the transmission. You must access it from underneath the vehicle. It is positioned behind a small metal heat shield that needs to be removed first.
Can I replace the Traverse crankshaft sensor myself?
Yes, this is a feasible DIY job for someone with moderate mechanical skill. It requires safely lifting the vehicle, removing a heat shield held by two bolts (typically 10mm and 15mm), and then removing the sensor itself (held by one 10mm bolt). The tight space can make it difficult, especially on all-wheel-drive models. A scan tool is needed for the relearn procedure afterward.
What's the difference between OEM and aftermarket sensors for my Traverse?
OEM (ACDelco) parts are what your vehicle was built with. Premium aftermarket brands like Delphi are often the same company that made the original part for GM. The main difference is that quality aftermarket parts can offer similar reliability at a lower cost. For this specific sensor, choosing a reputable aftermarket brand is generally a safe and cost-effective decision.
Will a bad crankshaft sensor always turn on the Check Engine Light?
Usually, but not always. A failing sensor can cause intermittent problems like stalling or rough idling before it fails completely and triggers a code like P0335 or P0336. If the engine won't start, the computer may not have enough data to set a code immediately.
Helpful Videos
Technical Specifications
OEM Part Numbers: 12627185 12632872 12674702 12585546
The sensor for the Chevrolet Traverse is a Hall-effect type sensor that works with a 58X reluctor wheel on the crankshaft. It uses a 3-pin connector. The replacement procedure involves removing a heat shield held by 10mm and 15mm bolts and the sensor itself held by a 10mm bolt.
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 Traverse:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is Your Traverse Stalling or Not Starting?
- Known Issues & TSBs
- Choosing the Right Aftermarket Sensor
- Brand Quality Tiers for Chevrolet Traverse
- Pro Tip: The Crankshaft Relearn Procedure
- Cost of Replacing the Crankshaft Position Sensor
- Frequently Asked Questions
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