P0304
Cylinder 4 Misfire Detected
2016-2016 Ford Explorer 3.5L V6 EcoBoost
High SeverityPowertrainGeneric (SAE)
The 2016 Ford Explorer is equipped with a 3.5L V6 turbocharged gasoline engine. Below you'll find detailed p0304 diagnostic code information including labor time estimates, cost ranges, and technician notes specific to this engine configuration.
Description
Misfire detected in cylinder 4.
Symptoms
- Check Engine Light
- Rough idle
- Vibration
- Loss of power
Common Causes
- Worn spark plug #4
- Faulty ignition coil #4
- Faulty injector #4
- Low compression cyl 4
Diagnostic Steps
- Swap coil #4
- Inspect spark plug #4
- Test injector #4
- Check compression
Repair Notes
Swap coil to diagnose.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0304 on Other Vehicles
Common Questions
What does code P0304 mean on a 2016-2016 Ford Explorer?
P0304 stands for "Cylinder 4 Misfire Detected". Misfire detected in cylinder 4.
What are the symptoms of P0304 on a Ford Explorer?
Common symptoms of P0304 include: Check Engine Light, Rough idle, Vibration, Loss of power.
What causes P0304 on a 2016-2016 Ford Explorer?
Common causes of P0304 include: Worn spark plug #4, Faulty ignition coil #4, Faulty injector #4, Low compression cyl 4.
Last updated: March 2026
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