Skip the auto shop - Our mechanics make house calls

Q: Engine turns over good but won't start what might be the problem? It misfired one time and hasn't started since.

asked by on

Engine turns over good but won't start what might be the problem? It misfired one time and haven't started since.

Your engine requires spark, air, and fuel to start and run properly. Air is almost always present so that leaves spark and fuel. Depending on the vehicle, if a crankshaft sensor is faulty, the engine control unit may not receive the signal to power up the ignition module and fuel pump. If the ignition module or ignition coil are bad, then there will be no spark signal. Another possibility is a failed fuel pump. Have a certified technician, like one from YourMechanic, diagnose the no start condition to correctly identify the failed component.

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!
  • Home
  • Questions
  • Engine turns over good but won't start what might be the problem? It misfired one time and hasn't started since.

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: Sputtering and missing while driving/ fuel pump replaced 4.6 liter engine Lincoln

Hello - while it's possible that the cause of your misfire under load is a bad ignition module, worn/weak spark plugs, or ignition coils (in that order) are far more likely to cause the misfire you're experiencing. First task is...

Q: Cranks then dies

Hi there. Usually engine starting issues are caused by a problem with fuel flow or ignition timing that could include clogged fuel injectors, a dirty throttle body, a bad idle control valve, or multiple other components. Have a professional...

Q: Indicator lights of park and drive are on. The engine don't want to start with the lights on.

Hi there. The orange gear light that appears on the dash is the warning light for the transmission. First check the computer (ECM) and see if there is any stored codes for the transmission or transfer case (if your vehicle...

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...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...