I own a 2004 BMW 3 Series (325i) with a gasoline engine and 220,000 km mileage. I've been experiencing significant shaking while idling, jerking during acceleration, and the check engine light is on. After running diagnostics, I found cylinder misfires in cylinders 6, 5, 3, and 2. I replaced all six spark plugs and coils, but the shaking persists. What could be causing these issues, and what should I check or replace next?
1 comment(s)
CarlyMechanic
Check the fuel injectors for those cylinders to ensure they are not clogged or malfunctioning. A faulty injector can cause misfires and rough idling. You might also want to inspect the vacuum lines for any leaks, as they can affect engine performance. Let me know how it goes or if you have any further questions!
CarlyMechanic
Check the fuel injectors for those cylinders to ensure they are not clogged or malfunctioning. A faulty injector can cause misfires and rough idling. You might also want to inspect the vacuum lines for any leaks, as they can affect engine performance. Let me know how it goes or if you have any further questions!