A Ford F-150 Owner's Guide to the Engine Crankshaft Position Sensor (2019-2024)
Understand the symptoms of a failing crankshaft position sensor and learn how to choose the right aftermarket replacement for your truck.
- A no-start condition or sudden stalling are the most critical symptoms of a failing crankshaft position sensor.
- The sensor is located on the lower passenger side of the engine, often tucked behind the starter, making access the main challenge for DIY replacement.
- Always inspect the wiring and connector for damage or corrosion before buying a new sensor.
- For best results, choose an OEM Motorcraft part or a high-quality aftermarket brand like Hitachi or Delphi; avoid the cheapest options.
Is Your F-150 Stalling or Not Starting? It Could Be the Crankshaft Sensor.
A failing crankshaft position sensor is a common issue that can leave your F-150 dead in the water. This small but vital sensor tells your engine's computer when to fire the spark plugs and inject fuel. When it goes bad, the computer is flying blind, leading to serious drivability problems. The most common signs are a check engine light, the engine cranking but not starting, or sudden stalling while driving.
Symptoms of a Bad Crankshaft Position Sensor
Look out for these common signs of failure. A faulty sensor will almost always trigger the Check Engine Light.
🎬 Watch: A visual guide to common bad sensor symptoms.- Engine Cranks but Won't Start: This is the most critical symptom. The engine turns over, but it never fires up because the computer doesn't know the crankshaft's position to time the spark and fuel.
- Sudden Stalling: The engine may cut out unexpectedly while you're driving, which can be a major safety hazard.
- Rough Idling and Misfires: Your truck may idle poorly, shake, or feel like it's misfiring because the timing is off.
- Reduced Engine Power and Acceleration: A bad sensor can cause a noticeable drop in power and make your truck feel sluggish.
- Check Engine Light: The most common diagnostic trouble code (DTC) associated with a failing crankshaft position sensor is P0335 (Crankshaft Position Sensor 'A' Circuit Malfunction).
A Note on Wiring
Before replacing the sensor, always inspect the wiring harness and connector first. Corrosion from moisture and road salt, or damage from engine heat, can cause the same symptoms as a failed sensor. A visual check could save you from replacing a perfectly good part.
Choosing the Right Aftermarket Sensor
When it comes to engine sensors, quality matters. While an OEM Motorcraft sensor is always a safe bet, several aftermarket brands offer a good balance of quality and price. Cheap, no-name sensors are known to fail prematurely, forcing you to do the job twice. It's better to spend a little more on a reputable brand.
Aftermarket Brand Tiers
- Tier 1 (High-Quality Aftermarket): Brands like Hitachi and Delphi are often original equipment manufacturers for many car brands. They are known for their reliability and are generally considered a solid alternative to OEM.
- Tier 2 (Reputable Aftermarket): Standard Motor Products (Standard Ignition) and Walker Products are well-known aftermarket brands that produce reliable sensors. Dorman is another option, though reviews can sometimes be mixed depending on the specific part and vehicle application.
- Tier 3 (Value Brands): This category includes various store brands and other lower-cost options. While the price is tempting, their long-term reliability can be questionable. If your budget is tight, they can get you back on the road, but a higher-quality sensor is recommended for peace of mind.
Pro Tip: Match the Part
Always compare the new sensor to the old one before installation. Part stores can sometimes make mistakes. Ensuring the new sensor has the same length, connector, and mounting points will prevent installation headaches.
Cost to Replace the Crankshaft Position Sensor
The cost can vary depending on your engine and whether you do the work yourself. The part itself is relatively inexpensive, but labor can add up due to its location.
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Sensor | $22 - $256 |
| New OEM (Motorcraft) Sensor | $60 - $100 |
| Shop Labor | $100 - $200 |
| Total Professional Replacement | $170 - $300+ |
Frequently Asked Questions (FAQ)
Where is the crankshaft position sensor located on a 2019-2024 F-150?
The location varies slightly by engine, but it's generally on the lower passenger side of the engine block. For both the 5.0L V8 and 3.5L EcoBoost, it is typically found near the starter motor or where the engine meets the transmission. Access is usually from underneath the truck.
Can I replace the sensor myself?
Yes, this is a DIY-feasible job for someone with moderate mechanical skill. The main challenge is access. The sensor is held by a single bolt (usually 10mm), but it's in a tight spot. On some models, you may need to move the starter to get enough clearance. 🎬 Watch: How to replace the sensor on a 5.0L V8. The job typically takes about one hour.
🎬 See this step-by-step replacement walkthrough for the 3.5L engine.Is an OEM Motorcraft sensor better than aftermarket?
Motorcraft is the original part and guarantees a perfect fit and function. However, high-quality aftermarket brands like Hitachi or Delphi often manufacture the OE parts and offer similar quality for less money. For a critical sensor like this, it's best to avoid the cheapest options and stick with either OEM or a top-tier aftermarket brand.
Are there any recalls for the F-150 crankshaft position sensor?
As of early 2026, there are no specific, widespread recalls for the crankshaft position sensor on the 2019-2024 Ford F-150 according to NHTSA searches. However, always check for the latest information using your truck's VIN.
What happens if I don't replace a bad sensor?
You shouldn't drive with a failing crankshaft sensor. The symptoms will only get worse. You risk the engine stalling in traffic, which is a serious safety hazard, or being stranded when the truck refuses to start at all.
Helpful Videos
Technical Specifications
OEM Part Numbers: JR3Z-6C315-A CK5Z-6C315-A
The crankshaft position sensor for the 2019-2024 Ford F-150 is a Hall-effect sensor that generates a digital signal for the PCM. It is held in place by a single bolt and uses a sealed electrical connector. Different part numbers exist for different engines (e.g., 5.0L V8 vs. 3.0L Diesel).
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.
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