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Engine Crankshaft Position Sensor Guide for the 2002-2005 Workhorse FasTrack FT1061

Everything you need to know before replacing the crankshaft position sensor on your FasTrack FT1061 chassis.

3 minutes to read 2002-2005 Workhorse FasTrack FT1061
Difficulty
2/5
Est. Time
0.75 hrs
DIY Doable?
✅ Yes
Shop Labor
$90-$180
🚫 Do not drive — It is unsafe to drive, as the engine could stall at any time, leading to a complete loss of power and a dangerous situation.
Key Takeaways
  • A failing crankshaft sensor can cause no-start, stalling, rough idle, and a Check Engine Light.
  • Verify if your FasTrack FT1061 has the 4.8L or 5.7L V8 engine before ordering to ensure you get the correct part.
  • Aftermarket brands like Standard Ignition and Dorman are available, with Standard generally having a better reputation for consistency.
  • Driving with a faulty sensor is a safety risk due to the potential for sudden engine stalling.
The engine crankshaft position sensor on your Workhorse FasTrack FT1061 is a critical component for engine operation. It's a small sensor that reads the position and rotational speed of the engine's crankshaft. This information is sent to the engine control module (ECM), which is the vehicle's main computer. The ECM uses this data to control vital functions like ignition timing (when the spark plugs fire) and fuel injection. Without an accurate signal from this sensor, your engine's computer can't run the engine properly, leading to a range of performance issues.

Is Your Workhorse Stalling or Refusing to Start? It Could Be the Crankshaft Sensor.

If your 2002-2005 Workhorse FasTrack FT1061 is experiencing issues like stalling, difficulty starting, or a check engine light, a failing crankshaft position sensor is a likely culprit. This sensor is essential for proper engine function, and when it starts to go bad, it can cause a variety of noticeable problems. Because the FT1061 chassis was equipped with different engines, primarily the GM 4.8L V8 and 5.7L V8, it is critical to order the correct sensor for your specific engine.

Choosing the Right Aftermarket Crankshaft Sensor

When it comes to replacing this sensor, you have options. While an OEM part from Workhorse might be available, aftermarket brands offer a more affordable solution. For this specific part, you'll find options from brands like Dorman and Standard Ignition (Standard Motor Products).

Brand Quality: What Mechanics Say

  • Standard Ignition (Standard Motor Products): Generally viewed as a reliable aftermarket brand. Many professional mechanics consider them a good alternative when an OEM part isn't an option or is too expensive.
  • Dorman: Dorman offers a wide range of parts and is known for being readily available. Their quality can be "hit or miss," according to some technicians. Some parts work perfectly for years, while others may fail prematurely. However, they sometimes offer redesigned parts that improve upon the original factory design.
  • True Tech: No verifiable information could be found for "True Tech" as a manufacturer of automotive sensors. Searches primarily show companies in other industries like IT or HVAC tools. Caution is advised when considering brands with no established reputation in the auto parts industry.

Known Issues, Recalls, and Service Bulletins

As of this writing, extensive searches of the NHTSA database and automotive forums have not revealed any specific recalls or Technical Service Bulletins (TSBs) for the crankshaft position sensor on the 2002-2005 Workhorse FasTrack FT1061. The common failure symptoms are consistent with general crankshaft sensor issues across all vehicles.

Cost of Replacing the Crankshaft Position Sensor

The cost can be broken down into the part itself and labor. The part is relatively inexpensive, but labor costs can vary by shop.

Cost Category Estimated Price Range
New Aftermarket Part $40.26 - $79.85
Shop Labor $90 - $180
Total Estimated Cost (Aftermarket Part + Labor) $130 - $260

Frequently Asked Questions (FAQ)

Can I drive my Workhorse with a bad crankshaft sensor?

It is not recommended. A failing sensor can cause the engine to stall unexpectedly, which is a major safety risk, especially in a commercial vehicle. If the sensor fails completely, the engine will not start at all, leaving you stranded.

Where is the crankshaft sensor located on the FT1061?

On the GM V8 engines typically used in this chassis, the crankshaft position sensor is usually located on the side of the engine block, near the rear, often on the driver's side close to the transmission bell housing. Access may require safely lifting the vehicle.

Is this a difficult part to replace myself?

For someone with basic mechanical skills and tools, this is a feasible DIY job. It typically involves disconnecting the battery, safely raising the vehicle, locating the sensor, removing a single bolt, and disconnecting the electrical connector. The job can often be done in under an hour.

What's the most common mistake when ordering this part?

The most common mistake is ordering the wrong sensor for your engine. The 2002-2005 Workhorse FasTrack FT1061 came with different engines (like the 4.8L and 5.7L V8s). Always verify your vehicle's engine size before purchasing a new sensor to ensure a perfect fit.

Technical Specifications

OEM Part Numbers: W8000525

The Workhorse FasTrack FT1061 chassis from 2002-2005 was primarily equipped with either a 4.8L V8 or a 5.7L V8 GM engine. The crankshaft position sensor is specific to the engine installed. The sensor is a magnetic type with a 3-pin female connector.

Wrenchy
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Meet Wrenchy → Updated Jul 21, 2026

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.

Year Coverage
This article covers the Engine Crankshaft Position Sensor for:
  • Workhorse FasTrack FT1061: 2002200320042005
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