What are the signs of a misfiring engine? I'm not sure if...

Q: What are the signs of a misfiring engine? I'm not sure if my car is misfiring or something else.

asked by on May 22, 2017

I have a check engine light on and recently my car has been backfiring or misfiring I'm not sure if I'm correct but it only happens when it's idling.

My car has 64000 miles.
My car has an automatic transmission.

Misfire can be a very broad term that can describe a variety of symptoms, but as far as the Engine controller is concerned, a misfire occurs when combustion is not taking place when the controller is expecting it. The Controller can sense the small accelerations in the flywheel with the firing of each cylinder, and if it doesn’t see it at the appropriate time, it will turn on the check engine light and store a misfire code. Some misfires will be very subtle and the driver might not even notice them, and at other times its more obvious as the engine shakes and seems to lack power. Misfire can be caused by something as simple as a vacuum hose being off to bad ignition components or even serious engine damage. To have your misfire diagnosed at your convenience. Contact Your Mechanic. they will send a technician to your home or office to check out your misfiring Mustang and advise you as to what should be your next steps.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

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

Car is overheating and building pressure in top water hose

Other possible causes of overheating include failed head gaskets that allow exhaust gases to leak into the cooling system, a major blockage in a cooling passageway, a failed radiator pressure cap, non functioning radiator cooling fans and poor engine running...

What would cause my 2008 Ford Escape to growl at 40 mph and what would it cost to repair.

Hello. From what you are saying it does sound like you have a bearing failure. When they fail they will make a growling beginning at higher speed. You will then get it at lower speeds the more you drive with...

Should I undercoat a 2010 Ford Escape in good condition?

Hi, thanks for writing in. If you live in the north, then yes. You want to protect your car against rust as much as possible. Texas uses sand instead of salt for icy roads, but if you know your state...

Related articles

The Best Used Cars to Buy If You’re a Caterer
If If you are in the catering business, you need a reliable vehicle that will provide you with what you need to transport your food, linens, and other supplies. Generally speaking, you're better off buying gently used, because you will...
2012 Toyota RAV4 vs. 2012 Ford Escape: Which One Should I Buy?
SUVs (Sports Utility Vehicles) are a fun class of vehicle to drive – with their generally excellent handling on the road, their quick acceleration, and the ability to move a fair number of people while still looking pretty cool, they...
2005 Jeep Wrangler vs. 2005 Chevrolet Blazer: Which One Should I Buy?
Sport SUVs are a class all of their own; these vehicles are meant for a fun drive through the woods and across the trail – but not necessarily to Grandma’s house! Think instead about going through the creek and through...