Skip the auto shop - Our mechanics make house calls

Q: Engine misfiring.

asked by on

My engine has a misfire.

You can usually identify an engine misfire by the distinct feeling and sound you get from the engine. A misfire is usually accompanied with a check engine light and if the misfire is critical, the check engine light will blink. Resolving the misfire requires that we determine the cause behind the misfire and which cylinder is doing the misfiring in your vehicle. Using an automotive scanner to communicate with the truck’s computer will point us in the right direction of which cylinder is misfiring. In most cases the repair is just a matter of providing your car’s engine with a routine tune up. A tuneup involves replacing the spark plugs, the ignition wires and, if equipped, the distributor cap and rotor. These are just the most common reasons why an engine experiences a misfire. It must be noted however that there are always uncommon reasons that could be at fault too. Faulty fuel injectors and vacuum leaks, as well as exhaust leaks, have been known to cause a vehicle to misfire. Due to engine misfires being caused by so many variables, and the solution varying just as much, it is always best to enlist the help of a certified mechanic to go over your vehicle with you and diagnose the reason of your misfire.

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!
  1. Home
  2. Questions
  3. Engine misfiring.

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: Fuel issues - 1999 Chevrolet Venture

Hi there. You may have a misfiring plug or plug wire that has not caused the Check Engine Light to come on yet, but may have stored a code. Have the computer scanned first. You may just have a carbon...

Q: Rattle when cold engine - 2006 Ford Mustang

Hello. This could be a variety of many things and may be difficult to pinpoint without physically inspecting the car. Many cars tend to have small or subtle vibrations and rattles as fasteners, nuts, and bolts become loose over time....

Q: Sputtering and not accelerating. Maybe fuel pump.

A weak fuel pump is indeed a possibility. Fuel injectors and fuel filter being clogged could also cause this issue. I would recommend having the fuel pressure checked first by a professional from YourMechanic. If the fuel pressure is low...

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...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...