Skip the auto shop - Our mechanics make house calls

Q: Car turns over but won't start

asked by on

My car will not start. It does turn over.

Hello. A crank, no start can be caused by a number of problems. The most common being a fuel system problem. If there is not a buzzing noise coming from the fuel pump when the key is first turned on then the pump may be bad. If the pump is working then it may be a bad crank sensor or a bad ignition module. All of these are common failures, but there are also less common problems such as a bad ignition switch. A mechanic would start diagnosing this by checking the fuel pressure to see if it is above manufacturer specifications. If it is not then the pump is usually the first to be replaced. If the pressure is fine the spark is checked. At that point a scan tool will also be used to see if there are any codes and to see if there is a crank signal.

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: Can't start car because key won't turn

I would first recommend you turn the steering wheel back and forth, and see if that will perhaps allow you to turn the key. Most vehicles have a locking mechanism that will prevent the ignition lock from turning if the...

Q: Car started losing oil and wouldn't accelerate

Hi there. From the description you have provided your vehicle's loss of oil needs to be repaired, before you continue driving, or this could result in catastrophic failure. The severe oil leak needs to be diagnosed and repaired, as soon...

Q: Still over heating after replacing radiator and thermostat. What is next plan of attack

Firstly, I would recommend checking the water pump for leaks and testing it to make sure it is flowing correctly. Also, as a means to eliminate another possible problem, while you are at it, I would check the coolant fan...

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 Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...