Chevrolet Silverado 1500 (2015-2024) Engine Camshaft Position Sensor Guide
Experiencing rough idling or a check engine light? Your Silverado's camshaft position sensor could be the problem.
- A failing sensor typically causes a Check Engine Light with codes P0340 or P0341, rough running, and starting issues.
- Replacement is a simple, low-cost DIY job for most owners, usually requiring only basic hand tools.
- For best results and reliability, choose an OE-quality brand like ACDelco or a reputable aftermarket brand like Delphi or Standard Ignition.
- Rule out related issues like a bad wiring connector or problems with the camshaft actuator magnet before replacing the sensor.
Is Your Silverado's Camshaft Position Sensor Failing?
A failing camshaft position sensor on a 2015-2024 Silverado 1500 will almost always let you know something is wrong. While symptoms can sometimes be subtle at first, they typically worsen over time. The most common sign is a Check Engine Light on your dashboard.
Key Failure Symptoms:
- Check Engine Light: The truck's computer will store diagnostic trouble codes (DTCs), most commonly P0340 or P0341.
- Engine Performance Issues: You may notice a rough idle, engine stuttering, hesitation when accelerating, or a general loss of power.
- Starting Problems: The engine may take longer than usual to crank and start. In severe cases, it might crank but refuse to start at all.
- Stalling: The engine may stall unexpectedly, either while idling or, more dangerously, while driving.
- Poor Fuel Economy: When the engine timing is off, it burns fuel less efficiently, causing you to visit the gas station more often. 🎬 Watch: 11 common symptoms of a failing camshaft sensor
Known Issues & Proper Diagnosis
While the sensor itself can fail, be aware of related Technical Service Bulletins (TSBs) for the Silverado. Issues with the camshaft actuator magnet (TSB 22-NA-080) or camshaft position actuator solenoid bolts (TSB 21-NA-146) can cause similar symptoms like shuddering or set timing-related codes. Always perform a proper diagnosis or have a mechanic confirm the camshaft position sensor is the actual point of failure before replacing parts.
Choosing the Right Aftermarket Sensor
When it comes to electronic sensors for your Silverado, quality matters. While you can save money with an aftermarket part, choosing a reputable brand is key to avoiding future headaches.
- Tier 1 (OE Quality): Brands like ACDelco (the original GM part) and Delphi are often the original equipment suppliers. They offer the best guarantee of fit, function, and longevity. If your budget allows, this is the safest choice.
- Tier 2 (Quality Aftermarket): Brands such as Standard Ignition (SMP), NGK, and Hitachi have a strong reputation for producing reliable aftermarket sensors that meet or exceed OEM specifications. They are a solid choice for a balance of price and quality.
- Tier 3 (Value-Oriented): Brands like Dorman, Walker Products, and various store brands offer the lowest price. While they can be a budget-friendly solution, their quality and durability can sometimes be inconsistent for sensitive electronics.
Pro Tip: Before replacing the sensor, always inspect the wiring connector for damage, corrosion, or oil contamination. A bad connection can mimic the symptoms of a failed sensor. Repairing the connector might solve your problem without needing a new part.
Cost of Replacement
The cost to replace a camshaft position sensor on a 2015-2024 Silverado 1500 is very reasonable, especially if you do it yourself.
| Part Type | Cost Range |
|---|---|
| New Aftermarket Sensor | $29.01 - $56.28 |
| New OEM (ACDelco) Sensor | $20 - $60 |
| Shop Labor (Estimate) | $100 - $150 |
| DIY Total (Aftermarket) | $29.01 - $56.28 |
| Shop Total (Aftermarket) | $129 - $207 |
Frequently Asked Questions (FAQ)
Where is the camshaft position sensor located on my Silverado?
On most 5.3L and 6.2L V8 engines in this year range, the sensor is on the front of the engine, mounted to the timing cover. It's typically on the driver's side, sometimes tucked behind the water pump or belt tensioner. It's a small, cylindrical sensor held in by a single 10mm bolt.
Can I replace this sensor myself?
Yes, this is a very DIY-friendly job for someone with basic mechanical skills and tools. The main challenge is often accessing the sensor, which may require removing the air intake tube and possibly the serpentine belt and tensioner. The replacement itself is simple: unplug the connector, remove one bolt, and swap the sensor.
🎬 Watch this step-by-step sensor replacement guide for Silverado V8sWhat are the most common error codes for a bad cam sensor?
The most frequent codes are P0340 (Camshaft Position Sensor 'A' Circuit Malfunction) and P0341 (Camshaft Position Sensor 'A' Circuit Range/Performance). These codes point directly to an issue with the sensor or its circuit.
🎬 See how to troubleshoot P0340 and P0341 circuit codesShould I clear the codes after replacing the sensor?
Yes. After installing the new sensor, use an OBD2 scanner to clear the diagnostic trouble codes. Then, start the truck and let it idle for a few minutes so the computer can recognize the new, functioning sensor.
Helpful Videos
Technical Specifications
OEM Part Numbers: 12623093 12591720 12674716 12733487 12703627
Typically a 3-pin Hall effect sensor with a single 10mm bolt mount and an O-ring seal.
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: