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.

A: Hello. A crank, no start can be caused by a...

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: Wagon stops after cranking it and in traffic

The vehicle may have a defective fuel pump. The best thing to do is to have a mobile mechanic, like one from YourMechanic, come to you and check the computer for codes and also check the fuel system to see...

Q: New vehicle purchase.

The motor and transmission in the Aztec are solid. Of course, it there are a few things that can kill these motors. The intake manifolds, both the upper plenum and lower intake can develop coolant leaks. If these coolant leaks...

Q: Does the fuel pump ground to the pcm on a 2002 grand Prix.

No, the fuel pump ground is in the right door sill on the body. If you check the fuel pump power to the wire that is grey, and it comes from the fuel pump relay in the engine compartment fuse...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.