Skip the auto shop - Our mechanics make house calls

Q: Misfire on cylinders 3 & 4 need to know the easiest way to fix it

asked by on

Need to know the easiest way to repair thanks

My car has 96000 miles.
My car has an automatic transmission.

A: The best way to resolve misfires on your en...

The best way to resolve misfires on your engine is to remove the ignition coil and the spark plugs on the affected cylinders. If the spark plugs appear to be in bad condition I would recommend replacing the spark plugs. If the spark plugs do not resolve the issue, I would recommend moving the suspect ignition coils to other cylinders and clearing the trouble codes. I would then drive the vehicle for a short amount of time until the Check Engine Light comes back. If the trouble codes change to the cylinders that you moved, the ignition coil to that cylinder is faulty. If the trouble codes stays in the same spot, the issue is not related to the coil or the spark plugs. A qualified professional from YourMechanic can diagnose the misfiring problem first so that this can be repaired correctly the first time.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Driver side door lock button not working, and passenger side sliding door makes a buzzing noise

Hi there. These door issues are common on this vehicle. Most of the time the main issue is the master door lock switch on the driver door. It sounds like you already replaced that. As for the sliding door problem,...

Q: When Should I Have the Fuel System Inspected?

There are many parts to a fuel system but only a few that actually can be inspected visually or otherwise on most vehicles. There are several things you can do to keep your fuel system running smoothly. Try to get...

Q: Loud noise from engine.

This is caused by the timing chain tensioners in the engine are bad and they would need to be replaced with new chains and tensioners. On some of these vehicle the camshafts may need to also need to be replaced...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...