24-Hour Autozone On Hickory Hill (2024)

FAQs

Can AutoZone diagnose check engine light? ›

AutoZone offers a complimentary Fix Finder service that efficiently diagnoses warning lights, including Check Engine, ABS, and maintenance indicators. Simply visit your nearest AutoZone store when a warning light appears on your vehicle's dashboard.

FREE AutoZone Fix Finder Service - Check Engine Light Diagnostic Tool.

We offer a variety of free services at our stores. Stop by your local store for free engine code scanning on most OBD II vehicles! We cannot guarantee the problem can be resolved during the visit, but we are happy to refer you to one of our local professional technicians if a more comprehensive diagnosis is needed.

If you see a warning light, come to AutoZone. Fix Finder reads information from the Check Engine, ABS, and maintenance lights. The test often takes less than a minute once the reader is plugged in. Find the closest store to you.

Check your gas cap first. Many vehicles have a loose gas cap indicator that will be triggered before your check engine light comes on. If your gas cap is loose or the seal is not tight, the vapor leakage can cause your fuel system to trigger the check engine light.

If you can't find a free option and are curious what it might cost, the national average across all vehicles for a check engine light diagnostics service is about $131 to $209.

Oxygen Sensor Malfunction

One of the most common reasons your check engine light may come on is that your oxygen sensor is failing. Your local auto repair shop in Western Washington can replace it for you quickly, which will restore your vehicle's ability to measure unburned oxygen in its exhaust system.

Low Oil and Check Engine Light

However, low oil pressure, which can be caused by low oil levels, can be a reason for the check engine light to turn on. Low oil pressure can seriously interfere with your car's performance and disable your vehicle if not addressed immediately.

Car diagnostic tests scan your car's components and systems to check for issues with components like the engine, transmission, oil tank, throttle, and many more. Because car diagnostic tests require specific devices and expertise to read correctly, most tests are performed with mechanics or at dealer shops.

'Hard' vs. 'Soft' Codes

These concepts are still valuable for OBD II because they tell you how likely you are to find the fault during testing. A hard code is easy to measure because the fault is always there, but a soft code means you may have to recreate the fault conditions.

Can I do my own car diagnostic test? ›

As explained above, the car diagnostic test is not as mysterious as you might think, and it's totally ok for you to do it yourself. You don't have to be an experienced mechanic before starting checking your vehicle: you can start it with little knowledge and you can also save a lot of time and money.

Plug an OBD-II scanner into your vehicle's OBD port and reset it to clear the check engine light. Disconnecting and reconnecting your battery will restart your vehicle's computer and clear the light. Drive an older vehicle around for a few days after repairs. The light will go off on its own once the computer resets.

We can help you get a reading yourself. Borrow an OBD reader to get a Check Engine Light reading with the AutoZone Free Fix Finder Service.

At the first sign of these symptoms, get to AutoZone. Our alternator test will help you determine what is causing your electrical issues. Our staff will help you find the right parts for your vehicle with brands you trust, like Duralast, and avoid unnecessary costs.

Buy an inexpensive scanner and read the code yourself. This is a particularly good option if you have an older car that might occasionally be showing a check engine light for minor problems.

Many auto parts stores offer code readings as a free service. Advance Auto Parts, AutoZone, and O'Reilly are among the stores that will. (So do many other chains and independent stores. Check with your local store to find out whether they offer this service, and whether it's free.)

If you do not have access to an automotive diagnostic scanner, there are alternative ways to read codes without a scanner. Although these are not ideal, using your odometer or ignition key can effectively retrieve diagnostic trouble codes to determine the cause of your check engine light.

The most common problem is with the oxygen sensor. This sensor assesses how much oxygen remains in your engine after igniting the air-fuel mixture. If these sensors detect a problem with your engine's oxygen use or burn out over time, it will activate the Check Engine light.