4 Common Reasons that Cars Have Trouble Starting Up

Hye-Tech Auto • 7 August 2025

A vehicle that struggles to start or won’t start at all can throw off your whole day, especially when the cause isn’t immediately obvious. Fortunately, many starting issues stem from a few common problems that mechanics can diagnose quickly. Understanding what may be causing the trouble can help you address the issue efficiently and potentially prevent future breakdowns. At Hye-Tech Auto, our local mechanics are highly experienced with identifying and addressing problems that cause no-start. Here are four common reasons that cars have difficulty starting.


Dead or Weak Battery

One of the most frequent causes of a car that won’t start is a dead or dying battery. Batteries supply the electrical power needed to turn over the engine, and if the charge is too low, the starter motor won’t engage. Signs of battery trouble include dim lights, a clicking sound when you turn the key, or no response at all. Batteries naturally wear out over time and can also drain from leaving headlights or accessories on while the engine is off.


Failing Starter Motor

The starter motor is responsible for cranking the engine when you try to start your vehicle. If this component begins to fail, you may hear a single click or no sound at all when attempting to start the car. A faulty starter can mimic battery problems, but it commonly requires replacement as opposed to a recharge. A mechanic can test the starter to determine if it’s the root cause of the issue.


Fuel Delivery Issues

If your car is turning over but still not starting, the issue may lie in the fuel system. A clogged fuel filter or failing fuel pump can prevent the engine from getting the gasoline it needs to start and run. In some cases, contaminated fuel or a fuel injector malfunction can also interfere with the combustion process, leading to startup problems.


Ignition System Problems

Your car’s ignition system includes spark plugs, ignition coils, and related components that work together to ignite the air-fuel mixture in the engine. Worn spark plugs or faulty ignition coils can prevent the engine from firing properly. Without a reliable spark, your engine won’t be able to start even if it’s receiving adequate fuel.


Auto Repair in Covina, CA

For expert auto repair in Covina and the surrounding area, contact Hye-Tech Auto at  626-332-5452. Feel free to give us a call to schedule an appointment!