Skip the auto shop - Our mechanics make house calls

Q: Car turns over but cannot start - 2002 BMW 325is

asked by on

I cannot start my car. The battery has been checked and it has power. I have recently replaced the radiator hose. I also had the line bled. I wanted to prevent any airlock problems. This didn't help however. The car would turn over but there is no startup. What might be causing this?

A: Hello. Usually the cooling system has nothi...

Hello. Usually the cooling system has nothing to do with the vehicle starting up. If the starter is working when you are turning the key (also known as a crank but no start) the issue is usually related to the ignition or fuel system. The most likely cause of the crank no start condition is a faulty fuel pump.

I would recommend having your fuel pressure tested by a qualified mechanic to determine if your fuel pressure is low first. If the fuel pressure is low, it is likely that the fuel pump is faulty. If the fuel pressure is within the specification set by the manufacturer, the problem is likely in the ignition system. A full inspection of both systems should be performed in order to determine the exact cause of the starting issue.

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・Save up to 30%

Get a quote

What others are asking

Q: Idles between 500rpm and 1300 rpm. Main concern is low rpm. Belt or pulley chirping mainly at low rpm Drives perfect but Idles bad

Chances are these two symptoms are related. If the drive belt is not performing as designed the engine will run poorly, or not run at all. There are several components that could be the problem, and further inspection is needed....

Q: A/C button lights flash on/off randomly

Hello. It sounds like the system may be low on refrigerant. Once it is low enough the system will act like this as the pressure will be low causing the system to turn off and on. If you have a...

Q: Cranks but won't start - 1999 Mazda 626

Hello. You should have the vehicle checked for loss of fuel pressure. If you have no fuel pressure, then inspect the fuel pump connection and check for power to the pump. If you have power to the fuel pump, then...

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...
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...
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...