How much does a check engine light diagnosis cost?

Does AutoZone check engine light for 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.

Is an engine diagnostic free?

There are literally thousands of diagnostic trouble codes (DTCs) that the check engine light might refer to. … Some auto repair shops charge for auto diagnostic services, but some places, such as autoparts stores, offer to scan your vehicle for free.

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.

How much does a full 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.

Where can I get free check engine light diagnosis?

AutoZone is well known for doing free check engine light diagnostics. Just go into the store and ask someone behind the counter.

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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.

Can AutoZone check engine light?

Does AutoZone Scan Check Engine Lights? AutoZone does. If your light is on, and you are wondering why, head down to your local AutoZone where one of our store associates can help diagnose the issue through our free Fix Finder service.