ProblemsByVin

Free. Instant. No signup. Pulls recalls and complaints for your exact vehicle.

Couldn't find that VIN. Check the digits and try again.

P0304 — Cylinder 4 misfire detected

Code P0304 is a standard OBD-II diagnostic trouble code: Cylinder 4 misfire detected.

Ask A Mechanic

In our record, P0304 is reported most often on Honda, Ford and Kia vehicles , against engine and powertrain failure patterns , across 2005–2023 model years.

In ProblemsByVin's analysis of the NHTSA owner-complaint record, owners cite P0304 across 164 vehicle failure patterns. Diagnostic codes in complaints are reported by owners and are unverified — they point to where this code shows up, not a confirmed diagnosis. Open a page below for the full pattern (symptoms, mileage, repair costs owners cite).

Vehicles where owners report P0304 164 patterns · top 60

2023 Chevrolet Silverado
powertrain — Engine ticking/clicking noise and lifter failure (6.2L engine)
2022 Chevrolet Silverado
engine — Catastrophic engine seizure and loss of propulsion
2022 Honda Accord
electrical — Fuel System Misfire and Limp-Mode Derating
2022 Hyundai Tucson
powertrain — Cylinder Misfire from Faulty Fuel Injectors
2022 Hyundai Santa Cruz
powertrain — Transmission power loss and shift failure
2022 Kia Sorento
powertrain — Engine misfiring and performance loss
2022 Volkswagen Taos
cruise control — Accelerator Unresponsiveness / Delayed Throttle Response
2021 Jeep Grand Cherokee
engine — Oil and coolant mixing
2021 Kia Seltos
engine — Excessive oil consumption and piston ring failure
2021 Mazda Mazda3
engine — Cylinder Misfire (Code P0304)
2020 Chevrolet Silverado
engine — Lifter and camshaft failure
2020 Chrysler Pacifica
engine — Head Gasket Failure with Coolant Leak
2020 Honda Accord
engine — Head gasket failure
2020 Jeep Compass
powertrain — Cylinder head gasket failure & combustion gas ingress
2020 Kia Telluride
powertrain — Excessive Oil Consumption / Piston Ring Failure
2020 Kia Optima
engine — Rod bearing and internal engine damage
2020 Kia Soul
engine — Piston ring defect causing oil loss, burning, and engine damage
2020 Kia Sorento
engine — Cylinder Misfire and Check Engine Light
2020 Mercedes-Benz GLE-Class
engine — Cylinder Head Failure
2019 Acura RDX
engine — Sudden Power Loss / Limp Mode During Acceleration
2019 Ford Fusion
engine — Coolant intrusion into cylinders (head gasket/block defect)
2019 Ford Escape
engine — Coolant Intrusion into Cylinders
2019 Ford Mustang
engine — Coolant Intrusion into Cylinders
2019 Ford Escape
steering — Engine Shaking, Coolant Intrusion & Electronic Power Steering Gear Failure
2019 Honda Accord
electrical — Engine stall / loss of power at highway speed
2019 Honda Accord
engine — Blown Head Gasket with Coolant Intrusion
2019 Honda Accord
cruise control — Loss of acceleration and engine performance issues
2019 Honda CR-V
powertrain — Fuel Injector Leakage and Oil Dilution
2019 Honda Fit
engine — Carbon Buildup and Misfires
2019 Hyundai Elantra
engine — Piston Ring Failure & Cylinder Scoring
2019 Kia Optima
engine — Cylinder Misfire / Oil Intrusion into Spark Plugs
2019 Kia Sorento
engine — Complete Engine Failure (Seizure, Crankshaft Snap, Valve Cracks, Cylinder Failure)
2019 Mazda CX-5
electrical — Transmission Jerking / Limp Mode with Misfire Codes
2019 Nissan Rogue Sport
brakes — Automatic Emergency Braking (AEB) system nuisance activation
2019 Subaru Crosstrek
engine — Ignition coil failure – recurrence after recall
2019 Toyota Camry
electrical — Ignition coil failure / engine misfire and stalling
2018 Chrysler Pacifica
powertrain — Engine misfire and head gasket failure
2018 Ford Fusion
engine — Coolant intrusion into cylinder(s)
2018 Ford Edge
powertrain — Coolant intrusion into cylinders (2.0L EcoBoost engine)
2018 Ford Escape
engine — Coolant intrusion into engine cylinders
2018 Ford Fusion
electrical — Misfire and Coolant Loss Without Visible Leak
2018 Honda Accord
cruise control — Engine stalling and power loss while driving
2018 Honda Accord
engine — Oil dilution and fuel injector contamination
2018 Honda Accord
electrical — Fuel Pump Failure
2018 Honda Accord
powertrain — Head Gasket Failure / Coolant Intrusion
2018 Honda CR-V
powertrain — Engine oil dilution by gasoline
2018 Honda Civic
engine — Oil dilution with fuel (1.5L turbo engine)
2018 Honda Fit
engine — Carbon buildup on intake valves and fuel injector failures
2018 Hyundai Elantra
engine — Ignition coil pack failures and recurring misfires
2018 Hyundai Santa Fe Sport
engine — Excessive Oil Consumption
2018 Hyundai Santa Fe
engine — Fuel Injector Failure (Bank 2)
2018 Jeep Grand Cherokee
engine — Head gasket and cylinder head failure
2018 Lincoln MKC
engine — Coolant Intrusion into Cylinders with Cracked Engine Block or Head
2018 Toyota Camry
engine — Transmission Jerking, Slipping, and Hesitation
2017 Acura RDX
electrical — Loss of power / engine cutout with all warning lights
2017 Audi Q7
engine — Drive System Malfunction with power loss and limp mode
2017 Cadillac Escalade
powertrain — AFM valve lifter collapse
2017 Chevrolet Silverado
engine — AFM/DFM Lifter Collapse
2017 Dodge Charger
powertrain — Cylinder 4 misfire and power loss
2017 Ford Escape
engine — Coolant Intrusion into Cylinders with Head Gasket Failure

Codes are pulled from what owners wrote in their NHTSA filings — they're allegations, not a shop diagnosis. Always confirm with a live scan. Browse all diagnostic codes →

Sponsored
Get a free warranty quote →