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Why Do I Need to Perform a Car Diagnostic?

You go to annual checkups with your doctor because you want to stay healthy. For your car, regular diagnostic tests can detect problems before they require costly repairs or, worse, leave you stranded on the side of the road after a breakdown. While many people believe diagnostic tests are only required when the check engine light comes on, there are major benefits to approaching auto maintenance in a proactive fashion. 

What Is a Car Diagnostic Test? 

One of the most beneficial technological advances in the automotive industry over the past few decades has been the computerization of the components inside the vehicle. This has come as a benefit to both consumers and auto technicians. Thanks to built-in processors, microchips, and sensors, car diagnostic tools can quickly and accurately point to problem areas in a car’s engine or elsewhere using specialized software.

Diagnostic tests can reveal issues with: 

  • Engine
  • Transmission
  • Exhaust system
  • Brakes
  • Fuel injector
  • Airflow and coolant
  • Ignition coils
  • Throttle performance.Why Do I Need to Perform a Car Diagnostic?

A popular misunderstanding about car diagnostic tests is that technicians can use code-reading tools to figure out what caused the check engine light to come on in the first place. Actually, the code only tells technicians which engine or component parameters are out of range, and it doesn’t explain why. The technician uses knowledge and experience to diagnose the root issue. This is when the human brain comes into action. 

What Does a Car Diagnostic Test Do? 

Identifying problems before the invention of car diagnostic tests was time-consuming and costly, especially because car owners only decided to bring their cars to mechanics after a breakdown or other serious malfunction. Computerized car components can now detect problems long before a breakdown occurs. Diagnostic tools can also check a car’s computer system for manufacturer notifications and data about the vehicle’s history, providing technicians with a complete picture of the vehicle’s history and allowing them to perform the best possible repair.

To get a car diagnostic test, you don’t have to wait until the check engine light comes on. Mechanics can use diagnostic testing to figure out what’s wrong if you hear or feel something strange. Many technicians, however, recommend getting your car in for a diagnostic check at least yearly, as this will reveal minor issues that aren’t visible or audible. This way you won’t set off the check engine light.

When inspecting a used car, diagnostic testing is also a useful tool. Before you commit to buying, both private sellers and professional car dealers should agree to a diagnostic test, and if they don’t, you should walk away from the deal.

Auto Repair in San Diego 

You always need a reliable mechanic. Automobile Repair Shop San Diego has been providing high-quality auto repair in San Diego for many years. To learn more about how we can assist you with your auto maintenance, call (619) 330-0862 right now.