A GMC Yukon Owner's Guide to the Engine Crankshaft Position Sensor (2017-2023)
Fix stalling, no-start, and check engine light issues by understanding your Yukon's crankshaft position sensor.
- A failing crankshaft sensor can leave you stranded; do not ignore symptoms like stalling or a no-start condition.
- For reliable performance, choose an OEM (ACDelco) or a top-tier OE supplier brand like Delphi.
- Diagnostic trouble codes P0335 and P0336 are strong indicators of a crankshaft position sensor problem.
- A 'crankshaft variation relearn' procedure with a scan tool is recommended after replacement to ensure proper engine function.
Is a Failing Crankshaft Sensor a Big Deal?
Yes. This small sensor is vital for your Yukon's engine. When it starts to fail, it sends bad information to your engine's computer. This can cause anything from annoying drivability problems to leaving you stranded on the side of the road. Ignoring the symptoms can lead to poor fuel economy, rough engine performance, and eventually, a no-start condition where the engine just cranks but never fires up.
Can I Drive With a Bad Crankshaft Sensor?
It is not recommended. A failing sensor can cause the engine to stall at any time, including at high speeds or in heavy traffic, which is a serious safety risk. It's best to get the vehicle diagnosed and repaired as soon as possible.
Common Symptoms of Failure
Your Yukon will usually let you know when the crankshaft sensor is in trouble. Look out for these common signs:
🎬 Watch this video to see seven common failure symptoms.- Check Engine Light: This is often the first sign. A code scan will typically show codes like P0335 or P0336.
- Engine Stalling: The engine may stall unexpectedly, either while driving or when idling at a stop.
- No Start or Hard Start: The engine may crank for a long time before starting, or it may not start at all. This happens because the computer doesn't know when to provide fuel and spark.
- Rough Idle and Misfires: You might feel the engine vibrating or shaking at idle. It can also feel like the engine is stumbling or hesitating.
- Poor Acceleration: The truck may feel sluggish and lack power when you press the gas pedal.
Choosing the Right Aftermarket Sensor for Your Yukon
When replacing this sensor, the brand you choose matters. While saving money is tempting, a cheap, low-quality sensor can fail quickly, putting you right back where you started. For a critical part like this, it's best to stick with trusted names.
Tier 1: OEM & OE Supplier Brands
These are your best bet for reliability and a perfect fit. They are engineered to the original factory specifications.
- ACDelco GM Original Equipment: This is the exact part that was installed at the factory. It offers the highest level of quality and compatibility.
- Delphi: As a major original equipment manufacturer for many car brands, Delphi parts are considered top-tier and are often identical to the OEM part.
Tier 2: Reputable Aftermarket Brands
These brands have a long history of producing quality parts and are a solid choice if an OEM part isn't in the budget.
- Hitachi: A well-respected Japanese manufacturer known for high-quality electronic components.
- Standard Motor Products (SMP): A long-standing brand in the aftermarket with a reputation for reliable sensors.
- NTK: Known for their sensors, NTK is another trusted name that often requires a relearn procedure upon installation.
Tier 3: Economy Brands
These brands offer the lowest price but come with a higher risk of premature failure or incorrect readings. Use with caution.
- Dorman: While Dorman offers a huge variety of parts, their sensor quality can be inconsistent. Check reviews for the specific part number.
- Walker Products, Spectra, Global Parts: These are typically budget-focused brands. They might work, but for a critical sensor, the risk of early failure is higher.
A Note on "Crank Relearn"
After replacing the crankshaft position sensor on a GM vehicle, a "Crankshaft Position System Variation Learn" procedure is often required. This procedure uses a professional scan tool to calibrate the new sensor to your specific engine. Skipping this step can sometimes result in a persistent check engine light (P1336), rough running, or inaccurate misfire detection.
🎬 Learn why the crank relearn procedure is so important.Cost to Replace a GMC Yukon Crankshaft Position Sensor
The cost can be broken down into parts and labor. The part itself is affordable, but labor can add to the total if you don't do it yourself.
| Item | Estimated Cost |
|---|---|
| New Aftermarket Part | $34 - $73 |
| New OEM Part | $60 - $100 |
| Shop Labor | $120 - $240 |
| Total (Shop Repair) | $154 - $340 |
Frequently Asked Questions
Where is the crankshaft sensor located on a 2017-2023 GMC Yukon?
On the V8 engines (5.3L and 6.2L) used in these Yukons, the crankshaft position sensor is typically located on the passenger side of the engine block, above the starter motor. To access it, the starter motor usually needs to be removed.
Can I replace this sensor myself?
Yes, if you have moderate mechanical skills and the right tools. The job involves safely lifting the vehicle, removing the starter, and then replacing the sensor which is held by a single bolt. 🎬 Follow this step-by-step guide to replace your crank sensor. However, remember that a "crank relearn" procedure with a scan tool is recommended afterward.
Are there any recalls for this part?
As of early 2026, there are no specific recalls for just the crankshaft position sensor on 2017-2023 GMC Yukons. However, there is a related NHTSA investigation and subsequent recall (NHTSA 25V-274) for some 2021-2024 models with the 6.2L L87 engine concerning internal engine failures, which can be related to crankshaft issues. There is also a Technical Service Bulletin (TSB 17-NA-317) for some older GM trucks that addresses electrical interference in the sensor's wiring harness, which could cause similar symptoms.
Why did my cheap new sensor fail after a month?
Low-quality aftermarket sensors often use inferior materials and less precise electronics. They can be more susceptible to failure from engine heat and vibration. This is why investing in a quality OEM or top-tier aftermarket brand is highly recommended for this specific part to avoid doing the job twice.
Helpful Videos
Technical Specifications
OEM Part Numbers: 12674703 12613030 213-354
The sensor is typically located on the passenger side of the engine block, above the starter. Access requires removing the starter motor. It is secured by one 10mm bolt. A crankshaft position variation relearn procedure is required after replacement for optimal performance.
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.
- GMC Yukon:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- Is a Failing Crankshaft Sensor a Big Deal?
- Can I Drive With a Bad Crankshaft Sensor?
- Common Symptoms of Failure
- Choosing the Right Aftermarket Sensor for Your Yukon
- Tier 1: OEM & OE Supplier Brands
- Tier 2: Reputable Aftermarket Brands
- Tier 3: Economy Brands
- A Note on "Crank Relearn"
- Cost to Replace a GMC Yukon Crankshaft Position Sensor
- Frequently Asked Questions
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