Workhorse FasTrack FT1801 Camshaft Position Sensor Guide (2002-2005)
Diagnose and choose the right replacement camshaft position sensor for your FasTrack's GM V8 engine.
- Verify if your FT1801 has the 5.7L or 6.0L V8 engine before ordering, as the sensors are different.
- Common symptoms include a no-start condition, stalling, and a Check Engine Light with code P0340.
- For this critical sensor, a premium aftermarket brand like Standard Ignition is a more reliable choice than budget options.
- Replacement is a feasible DIY job, but access to the sensor on the engine can be tight.
Is Your Workhorse FT1801 Stalling or Hard to Start?
A failing camshaft position sensor can cause frustrating and confusing engine problems. These sensors live in a tough environment of heat and vibration and can fail over time. Symptoms often start small but can lead to your vehicle being stranded. Understanding the signs can help you diagnose the problem correctly.
Important: Engine Varies by Year
The 2002-2005 FasTrack FT1801 came with two different GM V8 engines. It is critical to select the part for your specific engine:
- 2002-2004 models: Typically use a 5.7L V8.
- 2004-2005 models: Typically use a 6.0L V8.
Always verify your engine size before ordering a new sensor, as the parts are not interchangeable.
Symptoms of a Bad Camshaft Position Sensor
When this sensor starts to fail, your vehicle's computer gets bad information, leading to several noticeable problems:
- Check Engine Light: This is often the first sign. The sensor will trigger a Diagnostic Trouble Code (DTC), most commonly P0340.
- Engine Won't Start: The engine will crank, but it won't fire up because the computer doesn't have the camshaft position data it needs.
- Hard Starting: The engine takes longer than usual to start.
- Rough Idle and Stalling: The engine may run unevenly, shake, or shut off unexpectedly at a stop light or while driving.
- Poor Acceleration: The vehicle may feel sluggish or lack power because the engine timing is off.
Choosing the Right Aftermarket Sensor
For a critical sensor like this, part quality matters. While OEM is always an option, high-quality aftermarket parts can offer a good balance of price and reliability. Based on general mechanic and owner experiences with GM engines, aftermarket brands fall into different tiers.
Brand Quality Tiers
Premium Aftermarket (e.g., Standard Ignition - SMP): Standard Motor Products is a well-respected brand known for making reliable sensors that often meet or exceed OEM quality. For a part that can leave you stranded, choosing a premium brand is a wise investment for long-term reliability.
Standard Aftermarket (e.g., Dorman): Dorman offers a cost-effective solution and their parts are widely available. However, for critical electronic sensors, some professional mechanics and vehicle owners report a higher failure rate compared to OEM or premium brands. This could mean having to do the job a second time.
Budget/Unknown Brands (e.g., True Tech, store brands): While the low price is tempting, budget-level sensors carry the highest risk of being dead-on-arrival or failing prematurely. For a commercial vehicle where downtime costs money, these are generally not recommended.
Pro Tip: Given the critical function of this sensor, spending a little more on a brand like Standard Ignition is recommended over a budget part to avoid future headaches and potential breakdowns.
Estimated Replacement Costs
The cost to replace the camshaft position sensor can vary based on the parts you choose and whether you do the work yourself.
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Sensor | $47.48 - $56.37 |
| New OEM Sensor | $65 - $120 |
| Shop Labor | $75 - $150 |
Frequently Asked Questions
Can I replace the camshaft position sensor myself?
Yes, this is often a DIY-friendly job for someone with basic tools. The sensor is typically held in by a single bolt and has one electrical connector. The main challenge is access, as the sensor's location on the GM V8 engine can be in a tight spot, especially within the confines of a van chassis. Locating the sensor before you start is key.
Where is the camshaft position sensor located on the FT1801?
On GM V8 engines of this era (5.7L & 6.0L), the camshaft position sensor is typically located on the top rear of the engine block, near the distributor or oil pressure sensor, or on the front timing cover. You may need to remove other components for access. Always consult a repair manual for your specific engine for the exact location.
Are there any recalls for this part?
No. As of early 2026, there are no specific NHTSA recalls or Technical Service Bulletins (TSBs) for the camshaft position sensor on the 2002-2005 Workhorse FasTrack FT1801.
Do I need to do a "relearn" procedure after replacement?
No, a camshaft position sensor replacement typically does not require a relearn procedure. This is often confused with the crankshaft position sensor, which does require a "CASE relearn" on these GM engines. After replacing the camshaft sensor, you should clear the trouble codes from the computer with a scan tool.
Technical Specifications
OEM Part Numbers: 8125612110
Fits 2002-2005 Workhorse FasTrack FT1801 chassis with either 5.7L or 6.0L GM V8 engines. Part is engine-specific. This is a Hall Effect sensor that reads the camshaft's position for the ECM.
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.
- Workhorse FasTrack FT1801: