Ford Explorer Crankshaft Position Sensor Guide (1991-1995)
Everything you need to know about replacing the crankshaft position sensor on your first-generation Ford Explorer.
- A failing crankshaft sensor will cause a no-start condition or dangerous stalling.
- Symptoms include rough idle, poor acceleration, and a Check Engine Light.
- For this critical sensor, choosing a quality OEM (Motorcraft) or premium aftermarket brand (Delphi, Standard) is highly recommended over budget options.
- Replacement is a DIY-friendly job for most owners, located at the front of the engine near the main pulley.
Is Your Explorer Stalling or Not Starting? It Could Be the Crank Sensor
A failing crankshaft position sensor is a common issue on older vehicles like the 1991-1995 Ford Explorer. The symptoms can start small but will eventually leave you stranded. Because this sensor is so important for engine operation, it's a part you need to address as soon as you notice problems.
Choosing the Right Aftermarket Crankshaft Sensor
When it comes to critical electronic sensors, quality matters. For the 4.0L engine in your Explorer, you have a few tiers of aftermarket options.
- OEM / Premium Aftermarket (Motorcraft, Delphi, Standard Ignition): Motorcraft is Ford's original equipment brand and is the safest bet for compatibility and longevity. Premium aftermarket brands like Delphi and Standard Motor Products (SMP) are generally considered reliable, high-quality alternatives that often meet or exceed OEM specifications. These are the recommended choices for a critical part like this.
- Economy Brands (Walker Products, Global Parts, other store brands): While the lower price is tempting, economy brands can be a gamble. Forum discussions among Ford owners often reveal mixed experiences, with some sensors failing prematurely. If the budget is tight, they can work, but be aware that you might be replacing it again sooner than you would with a premium part.
Pro Tip: Check the Connector
Before ordering, visually inspect your old sensor's electrical connector. Over decades, heat and vibration can make the plastic brittle. It's common for the locking tabs on the wiring harness side to break. If your connector is damaged, you may need to splice in a new pigtail connector, which is sold separately.
Cost to Replace a 1991-1995 Ford Explorer Crankshaft Sensor
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket Part | $34.95 - $73.38 |
| New OEM (Motorcraft) | $60 - $90 |
| Shop Labor | $85 - $140 |
| Total Professional Replacement | $148 - $201 |
Frequently Asked Questions
Where is the crankshaft position sensor located on a 1991-1995 Explorer?
The crankshaft position sensor is located on the front of the engine, near the bottom. It is mounted on the timing cover, just above and to the passenger side of the main crankshaft pulley (harmonic balancer). 🎬 See exactly where the sensor is located on your Explorer. It has a two-wire electrical connector.
How difficult is it to replace the crankshaft sensor myself?
For a DIY mechanic with basic tools, this is a fairly easy job. It's held on by 🎬 Watch this step-by-step replacement guide for the 4.0L engine. two 10mm bolts. Access can be a little tight, but it can be done from underneath the vehicle. You will need to safely raise and support the front of the vehicle with jack stands. The most difficult part is often reaching the top bolt and unplugging the old, brittle electrical connector without breaking it.
Are there any recalls for this part?
No, there are no specific recalls or Technical Service Bulletins (TSBs) from Ford or the NHTSA for the crankshaft position sensor itself on the 1991-1995 Ford Explorer. Most issues are due to the age and normal wear of the electronic component.
What are the OBD codes for a bad crankshaft sensor?
Most 1991-1994 Explorers use the older OBD-I diagnostic system, while the 1995 model was a transition year to OBD-II. For OBD-I, a common code is 14, indicating an erratic ignition pickup. For 1995 models with OBD-II, you might see codes like P0320 (Ignition/Distributor Engine Speed Input Circuit) or P0335 (Crankshaft Position Sensor A Circuit Malfunction).
Helpful Videos
Technical Specifications
OEM Part Numbers: F1TZ-6C315-A F1TZ-6C315-B
2-pin rectangular connector, magnetic pickup type.
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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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