Check Engine Light

The Check Engine Light

Understanding The Check Engine Light

Did your check engine light suddenly come on? Welcome to the joys of vehicle ownership. The check engine light is one of the many warning lights that can appear in your dashboard when something is not right. The engine light is unique in that it’s part of the onboard diagnostics system (OBD-II) of your vehicle. Every vehicle manufactured for the United States since 1996 is equipped with the system. It monitors the engine, transmission, and exhaust system to ensure proper performance from all three components. If it detects an issue, it will do two jobs simultaneously. It sends the respective diagnostic trouble code (DTC) to the car’s computer system, which will require a check engine light diagnostics service for retrieving and trigger the check engine light to come on. When you notice the light in your dashboard, it’s important to schedule an appointment at your earliest convenience for professional check engine light diagnostics. At Harborview Service Center in Cold Spring Harbor, NY, you can count on us for efficient and accurate diagnostics.

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It can certainly be a scary feeling when your check engine light pops up on the dashboard. You may start to panic and wonder what might be wrong with your vehicle. Fortunately, the auto repair experts at Perlu Advanced Auto Repair in Stockton, California, can quickly diagnose and repair the problem. Our team of RepairPal Certified technicians is proud to offer the best labor costs in the area. We also would like to thank our servicemen, women, and teachers by providing them deep discounts on all of their automotive services. Our team offers a 36-month/36,000-mile nationwide warranty on all of our work. That warranty promises that you’re covered anywhere in the country. To resolve your illuminated check engine light without breaking your budget, contact Perlu Advanced Auto Repair today by calling +1 631-498-6755 to schedule an appointment.

  • Why Is the Check Engine Light On?

    There are plenty of reasons that your engine light can come on. For instance, a loose or broken gas cap can be the culprit. When the gas cap is compromised, fuel vapors can leak outside, and air can get inside the system, both of which can have adverse effects. Spark plugs are small but mighty components that are responsible for igniting the combustion to start your vehicle. Over time, spark plugs wear and require replacement; their wiring can also wear or fray and warrant replacement. Additional problems include a faulty catalytic converter, mass airflow sensor, or oxygen sensor. As a generality, any issue with the engine, transmission, or exhaust equipment, air/fuel delivery, modules and sensors, or ignition system can cause the check engine light to illuminate. It’s important that you visit our auto shop for check engine light diagnostics to determine the exact source of the problem. Do-it-yourself and at-home procedures are not reliable and don’t have access to the advanced equipment needed for precise troubleshooting.

Common Reasons for a Check Engine Light

There are several reasons why your vehicle’s check engine light came on. Whatever the reason, Perlu Advanced Auto Repair in Stockton, California, can swiftly fix the problem. Some reasons for an illuminated check engine light can include:

  • A loose gas cap
  • A bad catalytic converter
  • A faulty oxygen sensor
  • Worn out wires or spark plugs
  • A failing mass flow sensor
  • A bad aftermarket alarm
  • A vacuum leak
  • A dead battery

If your check engine light pops on, it’s important to take your vehicle to a reputable auto repair service shop to get inspected. Our family-owned-and-operated repair shop can effectively diagnose and repair your car in no time. While you wait, enjoy Perlu Advanced Auto Repair’s inviting and entertaining waiting area. It’s packed with video games, beverages, free Wi-Fi, charging stations, and more to keep you occupied as we work on your car.

Professional Check Engine Light Diagnostics

Harborview Service Center is well-versed in all steps of a check engine light diagnostics service. Using our state-of-the-art diagnostics equipment and code-reading tools, we guarantee correct results. When you bring your car in, we’ll plug our code-reading technology into your vehicle’s OBD-II port to decipher the DTC. From there, we will perform a thorough assessment of the component that’s displaying a problem. We’ll keep you in the loop from the very beginning, and we will consult you with our steps for repair before getting to work.


Check engine lights are a very common form of auto service for us, which means we are experienced with check engine light diagnostics and repair for all makes and models. Our auto repair shop offers status updates as we work on your vehicle, free shuttle service if you have places to be, and free WiFi if you choose to wait.


Schedule an appointment with us online or by giving us a call at +1 631-498-6755.

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Jay P.

Harborview Customer

Al is awesome very professional knows what he’s doing gets the job done family orientated honest and trustworthy 10 stars all the way it’s hard to  find someone you can trust this is the place to go To get anything done on your car the right way


Bryan C.

Harborview Customer

Best gas station around. Always the cheapest price for gas around the area. Staff is always very helpful and nice. You should 100% be going here for your everyday needs.

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