P0300 Ford Maverick
Random/Multiple Cylinder Misfire Detected · Powertrain Code · High · Repair: Easy
What is P0300?
The ECM has detected misfires occurring in multiple or random cylinders. Common causes include worn spark plugs, faulty ignition coils, vacuum leaks, low fuel pressure, or a failing catalytic converter.
When the Ford Maverick triggers code P0300 (random/multiple cylinder misfire detected), 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 Maverick.
This repair is rated easy, meaning basic tools, no lift needed.
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 Maverick.
Common Causes on Ford Maverick
- Ignition coil failure on 2.0L EcoBoost four-cylinder (non-hybrid models)
- Spark plug fouling on 2.5L Atkinson-cycle hybrid engine from short-trip driving
- Carbon buildup on intake valves from direct injection on 2.0L EcoBoost
- EGR valve deposit buildup causing combustion instability on 2.5L hybrid
- Low fuel pressure from in-tank fuel pump degradation on high-mileage 2.0L models
Symptoms
- Rough idle with noticeable engine vibration
- Engine shaking or stumbling under load
- Loss of power during acceleration
- Check engine light flashing intermittently
- Poor fuel economy
- Hesitation or stumble on acceleration
Notes for Ford Maverick
The hybrid 2.5L cycles on and off frequently which can lead to spark plug fouling from incomplete combustion.