A vehicle in the HomeTowne Auto Repair and Tire parking lot.

My car won’t start. What’s wrong?

In Automotive Diagnostics by HomeTowne Auto Repair & Tire

It is very inconvenient when your car won’t start, especially if you have somewhere to be.

There are many possible culprits behind this issue.

The problem could be as simple as a car battery, alternator or starter going bad. It could also be a more complex issue.

Dead Battery 

If you hear a clicking sound or the check engine light turns on, the battery might need replacing.

Batteries can go bad for a number of reasons. Leaving your lights on is one that many of us are familiar with. 

There could also be a problem with the charging system or corrosion on the battery terminals. Electronics in your vehicle, such as clocks and computers, can eventually cause your battery to die.

Old and weak car batteries are more likely to go bad when it’s extremely hot or cold outside.

Starter going bad

A vehicle may not turn over if it has a bad starter, which is responsible for starting the engine.

It has a gear that shoots out and quickly spins, starting the flywheel.

A clicking sound can be a sign that you need a new starter. However, a car with a bad starter won’t easily start even when a jumper box or jumper cables are used. Here are some other signs that your starter is going bad.

A starter will, at times, stop working without warning.

If you turn you over a few times, you may be able to hit it right and get your car started. 

However, if this tactic doesn’t work you probably need to have it towed to a repair shop.

Alternator problems

The alternator is responsible for generating electricity, which is used for electronics or to recharge the battery.

An alternator going bad is another reason why a car won’t start.

This can be indicated by the battery light turning on or flickering. The alternator may be struggling to charge the battery, which can make it difficult to start a vehicle.

In addition to the alternator going bad, the problem may have to do with brushes or diodes. A serpentine belt could also have gotten caught around the alternator.

Other reasons why a car won’t start

Issues with a vehicle refusing to start could be more complicated and lie with a sensor or control system not functioning.

The transmission sensor, for example, could be the reason.

There may also be a problem with the fuel system, such as a bad fuel pump or the fuel filter becoming clogged.

Whatever the reason behind your car not starting, you should bring it to a mechanic or auto repair shop as soon as possible. 

Even if you’re able to get it started again, you might not be as lucky next time.

Also, the sooner you can bring it to a repair shop, the sooner they can pinpoint the issue and have you back on the road again.

HomeTowne Auto Repair & Tire is an authorized Michelin and BFGoodrich tire dealer located in Woodbridge, Virginia. Automotive repair services are performed on all makes and models, including oil changes, brakes, alignments, inspections, and computer engine diagnostics.