Q: i need to know why my car won't start

asked by on

We have had trouble starting our car. I replaced the battery with a new one , replaced the battery connectors and got a new starter. Auto Zone checked the alternator and all are fine. The car doesn't want to start sometimes still. There is a clicking sound when we turn the key, but nothing happens. Sometimes it will start and other times it won't. We originally thought that it was because the gas was low (1/4th tank or less) and kept the tank full but eventually it started randomly not starting even with a half a tank and now even a full tank.

My car has 140000 miles.
My car has an automatic transmission.

Hi there. When your car has issues starting, as you’ve described in the question submitted, most of the time it’s due to a faulty electrical connection; perhaps with the ignition relay or starter relay. If you turn the key over and occasionally you hear a clicking sound, the problem is likely the starter relay; which sends power to engage the starter motor. However, it could be an ignition system component, like a crankshaft position sensor harness that might have an exposed wire somewhere. Before you complete any further repairs, I would recommend having a professional mobile mechanic come to your location and complete a car is hard to start inspection.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. i need to know why my car won't start

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: My car hesitates upon acceleration

This may be a sign of a faulty fuel pump or fuel pressure regulator. As you know, when you turn the key to on, the fuel pump is activated and the fuel system is primed with fuel at a specific...

Q: Ac not working and car overheating

The two cooling fans are controlled by a fan controller which is mounted in the center of the engine, above the radiator. The fan controller controls the fan speeds depending on the signals from the engine control module input. A...

Q: Humming noise coming from front end

If the tires are worn irregularly and/or have any internal damage (such as a belt separation) that will create a lot of noise of the type you are hearing. The other possibility is defective wheel bearings (quite common). I would...

Related articles

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...
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.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.