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Misfiring Cylinder
2018 Hyundai Elantra
This problem may be covered under warranty. Ask your Hyundai dealer.
4.0
definitely annoying- Typical Repair Cost:
- No data
- Average Mileage:
- 14,000 miles
- Total Complaints:
- 1 complaints
engine problem
Helpful websites
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A D V E R T I S E M E N T S
Check engine light came on after a cold start on a cold day (~40F). Code reads P0303, cylinder 3 misfire. Engine now misfires every cold start, even on warm days. Swapping spark plugs, coil packs, and fuel injectors all had no effect, so I'm left with some pretty big possible problems. Vacuum leak? Faulty wire going to the coil pack? Worn/burnt piston?
Continued misfires could destroy the engine or catalytic converter. With only 14k miles and more than regular servicing/oil changes this really shouldn't be an issue. Waiting to setup an appointment with the local dealership who SHOULD do the repair under warranty.
- Daniel V., State College, PA, US