2013 Ford P0325: What It Means & Is It Safe to Drive?
P0325 on the 2013 Ford: Knock Sensor 1 Circuit Malfunction (Bank 1). Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
What this code means
The PCM isn't receiving a valid signal from knock sensor 1. Without knock feedback, the PCM retards ignition timing as a safety measure, reducing power and economy.
Common causes on the 2013 Ford
- Failed knock sensor
- Corroded or broken wiring/connector at the sensor
- Actual engine knock from carbon buildup or low-octane fuel
Symptoms
- Check Engine Light
- Reduced power and fuel economy (PCM retards timing)
- Possible audible knock or ping under load
Typical fixes
- Replace knock sensor
- Repair wiring and connector
- Use correct octane fuel and address carbon buildup
Repair cost range
For a 2013 Ford, repairs for P0325 typically fall between $150 and $500, depending on the root cause and labor rates in your area.
Known issues on Ford
Ford P0325 on Modular V8 engines (4.6, 5.4) is commonly a wiring harness issue rather than sensor failure—the knock sensor harness routes near the exhaust manifold and the sheathing deteriorates from heat. Inspect the harness between the sensor and PCM connector for damage before replacing the sensor. On EcoBoost engines (3.5T, 2.0T), P0325 is uncommon and usually indicates genuine sensor failure or a loose sensor mounting bolt—the sensor must be torqued to spec (15–20 Nm) to read correctly.
Most commonly affected models