P0335 Ford Explorer
Crankshaft Position Sensor A Circuit Malfunction · Powertrain Code · Critical · Repair: Moderate
What is P0335?
The crankshaft position sensor circuit has a malfunction. Engine may crank but not start, or stall intermittently.
When the Ford Explorer triggers code P0335 (crankshaft position sensor a circuit malfunction), it typically points to an issue in the powertrain system. This is a critical severity code, so address it promptly to avoid further damage or safety concerns. Below you'll find the most common causes, symptoms, and repair options specific to the Ford Explorer.
This repair is rated moderate, meaning some experience and specialty tools required.
Diagnostic data on this page is compiled from publicly available repair resources and technical service bulletins. Always have a qualified mechanic confirm the diagnosis before authorizing repairs on your Ford Explorer.
Common Causes on Ford Explorer
- Failed crankshaft position (CKP) sensor
- Damaged reluctor ring (tone wheel) on the crankshaft
- CKP sensor wiring shorted or open from heat damage near exhaust
- Excessive crankshaft endplay or bearing wear
Symptoms
- Check engine light
- Engine cranks but will not start (no spark/fuel)
- Intermittent stalling while driving
- Rough running or random misfires
- Tachometer drops to zero intermittently
Notes for Ford Explorer
If the engine cranks but will not start and there are no other codes, the CKP sensor is the prime suspect — carry a spare on long trips if yours is high mileage.