misfire cyclinder 3

Asked by Mar 29, 2017 at 12:20 AM about the 2009 Hyundai Accent

Question type: Maintenance & Repair

My car was diagnosed with misfire on cylinder 3. Would I need to change the
ignition coil and the spark plug or can I just do the spark plug? I will change all
the spark plugs.

5 Answers

69,395

You can try just the plug and see if that does it.

Best Answer

okay. I will. I do need to know if it is okay to drive with it misfiring. I babied it for 3 miles home.

69,395

That is up to your judgment.

72,145

A miss fire will eventually damage the catalytic converter. You should try and get this fixed as soon as you can. Here are some other causes for a cylinder miss fire....Possible causes; Faulty spark plug 3, Clogged or faulty fuel injector 3, Faulty ignition coil 3, Fuel injector 3 harness is open or shorted, Fuel injector 3 circuit poor electrical connection, Ignition coil 3 harness is open or shorted, Ignition coil 3 circuit poor electrical connection, Insufficient cylinder 3 compression, Incorrect fuel pressure, Intake air leak.

49,145

Swap the spark plug and coil with another cylinder to see if the miss moves. If the miss is still there and doesn't move, inspect the #3 fuel injector and wiring.

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