P0012 Ford F-150
Intake Camshaft Position Timing Over-Retarded (Bank 1) · Powertrain Code · High
What is P0012?
The intake camshaft timing on bank 1 is more retarded than the ECM commanded.
When the Ford F-150 triggers code P0012 (intake camshaft position timing over-retarded (bank 1)), it typically points to an issue in the powertrain system. This is a high 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 F-150.
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 F-150.
Common Causes on Ford F-150
- Stretched timing chain allowing cam timing to slip — common on high-mileage 3.5L and 2.7L EcoBoost
- Failed or stuck cam phaser on bank 1 intake (known issue on 5.0L Coyote Gen 3)
- Low oil level or degraded oil reducing VVT system hydraulic pressure
- Faulty VVT control solenoid stuck in retarded position
Symptoms
- Check engine light
- Loud cam phaser tick/rattle on cold startup lasting 30+ seconds
- Poor fuel economy
- Rough idle and possible stalling
- Loss of low-end torque
Notes for Ford F-150
The 5.0L Coyote Gen 3 (2018+) has a well-documented cam phaser rattle issue — Ford released updated phasers under TSB 19-2346.