Skip the auto shop - Our mechanics make house calls

Q: Engine misfiring in the sixth cylinder on a 2009 Ford Edge

asked by on

My 2009 Ford Edge is getting engine misfiring in the cylinder number six and I recently changed the sparkplugs. When I try to get past 40, the car kicks before going higher. What do I have to do to fix this?

A: Misfires can be caused by many things, but ...

Misfires can be caused by many things, but at least you know it is in the cylinder number six. What I would try next is to swap the ignition coil from six to one, and one to six. If the misfire moves to one, you’ll know that the ignition coil assembly is bad, so replace it. You can also do the same with the fuel injector. You can swap number six’s injector with one’s injector. If the misfire moves, you’ll know that the fuel injector is bad.

You want to pray it’s one of those because if it’s not that, then it can often be the head gasket starting to blow, or you’ve got the problem with the computer wiring system not working right. However, commonly the problem is with the coil or fuel injector. I’d recommend having it looked at by a certified mechanic if your problem persists, they will be able to pinpoint and fix your misfiring engine.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: Engine misfiring 2003 Honda CR-V

Misfires can be caused by several things. I would first check for vacuum leaks, then I would pull the plugs to see if they need replacing. It is possible that have a fuel system concern, but I would lean more...

Q: Keep burning through head gaskets

Unfortunately this is a well know problem with the Chevrolet Equinox's. It really has nothing to do with driving habits, or lack of maintenance, but on the design of the engine cooling system, particularly the design of the head gaskets....

Q: Nonstop backfiring

Backfiring occurs when the air fuel charge in a cylinder(s) fires at the wrong moment often when the exhaust valve is opening. There are backfires into the intake manifold, too, however. If during your work on the engine you moved...

Related articles

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...