Q: Can a misfire stop my car from starting.

asked by on

I have a misfire and cylinder 1 & 4.

My car has 115783 miles.
My car has an automatic transmission.

Hi There, Generally a misfire in one or two cylinders may not prevent the car from starting, however depending on how severe the misfire is, it may be possible. Engine misfires can be caused by many different problems and are generally caused by either a spark or fuel issue or in some cases, a combination of both. Spark related problems generally will result from things like ignition coils, crankshaft position sensor, spark plugs, spark plug wires or ignition modules not working properly. When the misfire results from a fuel related issue, this is commonly related to a lean fuel condition (lack of sufficient fuel supply to the motor). Fuel related misfires can be caused by many different things such as low fuel pressure, faulty or dirty fuel injectors, a faulty O2 sensor, a dirty or failing mass air-flow sensor, a faulty or dirty idle air control valve or a vacuum or intake leak. When the fuel supplied to the combustion chamber is insufficient, this results in an ignition (spark) that is igniting a less than balanced load of fuel and air. This results in a misfire or an explosion in the cylinder that is much less powerful than the other cylinders. This creates a loss of power that resonates throughout the motor additionally causing other problems with ignition and fuel timing. Due to the number of different things that may cause an engine misfire, the quickest and easiest way to diagnose this type of problem is to hook the vehicle up to a scanning tool which will download any potential fault codes that may have registered in the vehicle’s computer as a result of the poor running condition. I would recommend having an expert from YourMechanic come to your location to diagnose your misfiring problem.

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
  1. Home
  2. Questions
  3. Can a misfire stop my car from starting.

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: Steering wheel hard turning on 2007 Volvo V50

According to the service I use to make recommendations by mileage, the change interval for the timing belt is 120,000 miles. 100,000 miles is a little early, but it is better to perform services like these earlier rather than late...

Q: fuel mixture is lean. must be adjusted

I'm guessing that you are getting a P0171 code or something similar. Yes, its telling you that the engine is running too lean, but there is not an adjustment that you can make. When this happens it is because of...

Q: Something that looks to be oil coolant mix under my 2006 audi a6 quattro. I bought the car drove it home and its been parked since

I would recommend starting with a cooling system pressure test. This will determine whether Cooling system leak is. If the coolant is mixed with oil then you will see coolant and oil leaking. Cooling system pressure test can be performed...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...