P0012 Ford Ranger
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 Ranger 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 Ranger.
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 Ranger.
Common Causes on Ford Ranger
- 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 Ranger
The 5.0L Coyote Gen 3 (2018+) has a well-documented cam phaser rattle issue — Ford released updated phasers under TSB 19-2346.