P0335 on a Ford: Causes, Fixes & Repair Cost

⚠️ Severe · not recommended to drive

The engine may crank without starting or stall without warning, so have the Ford towed to a shop.

What P0335 means on a Ford

On a Ford, P0335 tells you the computer isn't getting a crankshaft position signal, so it can't time spark and fuel delivery. The engine may crank but not start, or stall while driving.

Is P0335 common on Fords?

Ford crankshaft position sensor failures are well documented across trucks and cars, especially at higher mileage. Wiring harness chafing near the sensor is a known cause, so check the harness before swapping the part.

Commonly reported on: F-150, Focus, Mustang, Escape.

Symptoms

Engine cranks but won't start
Engine stalls while driving
No spark reaching the spark plugs
Check engine light is on

Common causes

most common: Failed crankshaft position sensor
common: Chafed or damaged wiring harness near the sensor
common: Loose or corroded sensor connector
less common: Damaged trigger wheel or reluctor teeth

How to fix it

Fix	DIY?	Typical cost
Inspect the wiring harness for chafing before buying a sensor	Yes	$0–50
Replace the crankshaft position sensor	Yes	$50–190
Repair chafed wiring or the connector	Yes	$20–150
Have a shop replace the sensor including labor	Mechanic	$150–400