Is a diagnostic at AutoZone free?
Matthew Shields
Updated on March 01, 2026
Is a diagnostic at AutoZone free?
Many drivers don’t realize that AutoZone, the nation’s largest auto parts chain, will do the following services free of charge: Read the codes on your check engine light. Test your battery’s voltage. Check your alternator and starter.
How much does AutoZone charge for a diagnostic?
At AutoZone, you don’t need to pay for testing your car. You can get your car’s parts tested for free at AutoZone. We can check out your car’s battery, alternator, starter, and voltage regulators while they’re still on your car. A complete starting and charging systems test can be given to your car.
Does AutoZone offer installation?
So, when you need to update your F150 exhaust installation, revamp your exhaust installation for Silverado or anything in between, AutoZone has you covered. Plus, you can benefit with our Same Day Store Pickup.
How much should a car diagnostic cost?
How Much Does a Car Diagnostic Cost? The average price for a car diagnostic test costs about $82.50 with average prices ranging from $65 to $100 for the US in 2020 according to SuperMoney. Repairpal states it should cost between $88 and $111, but Popular mechanic states it should cost between $20 and $400.
Will AutoZone tell me why my check engine light is on?
While yes, both yourself and AutoZone can read the engine computer’s stored codes, and through Fix Finder, determine likely causes based on thousands of mechanics intel, none of these can pinpoint with 100% accuracy exactly why the CEL came on.
What is a full diagnostic on a car?
Diagnostic tests will report back codes for almost all of the major components of your vehicle like the engine, brakes, transmission, and exhaust system as well as the fuel injection system, coolant and air flow, the various sensors throughout your vehicle, and more.
Does O’Reilly do free diagnostics?
O’Reilly Auto Parts offers free check engine light testing to help you diagnose the problem. Most of our stores can loan you a code reader for OBD 1&2 systems for vehicles from 1996 and up, except in areas where it is prohibited by law.
Can AutoZone test a starter?
Every AutoZone in the USA will check your alternator, starter, or battery at no charge.
Does AutoZone install windshield wipers?
“Windshield wiper installation is also popular,” Hamilton said. Most places, including AutoZone, O’Reilly and Advance Auto Parts will also replace your wiper blades for free if you buy them at their store.
Is a car diagnostic test worth it?
Car diagnostic tests are valuable for a variety of reasons. Car diagnostic tests help you detect errors before they become catastrophic, saving you money in the long run. Car diagnostic tests can also check your car’s onboard computer system for any manufacturer notifications or stored information.
What is the most common reason for check engine light?
Replacing a faulty oxygen sensor — a sensor used to optimize a vehicle’s fuel-to-air mixture to increase gas mileage and reduce emissions — is the most common cause for a check engine light.
Can I drive with check engine light on?
The rule of thumb is that if the check engine light is flashing, you can’t keep driving the car. It’s an emergency. Often it indicates an engine misfire. If you keep driving, you will likely cause irreversible damage, mostly to the (expensive) catalytic converter.