Skip the auto shop - Our mechanics make house calls

Q: Car won't start

asked by on

I can't start my car but have not idea why.

A: There are a lot of reason why your vehicle ...

There are a lot of reason why your vehicle won't start. The battery could be dead, not powering up the starter, which is needed in order to start the car. There also could be a lack of fuel from a bad fuel pump. Another possibility is the lack of airflow in the intake system or even a problem with the ignition system not delivering enough spark to ignite the air fuel mixture within the combustion chamber. Lastly, mechanical issues such as the wrong timing or even bent valves in the cylinder head can cause a lack of compression, and in turn will not allow the vehicle to start. The best plan of action would be to have a qualified technician perform a diagnostic to pinpoint the source of your concern to get your car starting again.

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: Car not starting due to alternator problem

If the battery tests well, then it's not likely that the alternator is what's preventing your car from starting; there could be other factors at play here. I suggest having a certified mobile mechanic, such as one from YourMechanic, come...

Q: Electrical short

First measure the "total" parasitic load while the battery is connected (use ammeter or volt ohmmeter). Make a note of that. Ordinarily, you could have 20 to 50 milliamps or so of current draw to run the car alarm and...

Q: several warning lights on

Hello there, it is unusual for all of these lights to come on at one time with your 2004 Toyota Sienna. The most common cause of a malfunction that effects all these systems is an electrical one such as a...

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...
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...