My Check Engine Light Went On — What Now?

February 21st, 2023 by

Mazda3 Dashboard Lights

Say you’re taking a trip from Gastonia to Kings Mountain and the dreaded “check engine” light in your instrument cluster lights up. Your stomach might turn at the thought, but don’t panic when this dashboard warning light shows up on your Mazda vehicle! The check engine light can signify plenty of minor issues, not just major problems.

So, let’s do some troubleshooting. And if you’re still stumped afterward, don’t hesitate to bring your car into Mazda of Gastonia’s service department so we can get to the bottom of it.

Why Did My Check Engine Light Turn On?

Some of the most common reasons that your check engine light might be on include:

Reason What Could Happen if You Don’t Get Service
Oxygen sensor replacement warning
  • Decreased efficiency
  • Damage to the spark plugs and/or catalytic converter
Loose, damaged, or no gas cap
  • Decreased efficiency
Airflow sensor replacement warning
  • Will fail emissions test
  • Decreased performance and efficiency
Catalytic converter replacement warning
  • Damage to parts such as the catalytic converter, oxygen sensors, spark plugs, etc.
  • Decreased performance and efficiency
Spark plug replacement warning
  • Decreased performance and efficiency
  • Damage to parts such as plugs, catalytic converter, oxygen sensors, ignition coils, etc.

How Can I Troubleshoot the Check Engine Light?

Even something as simple and easy as not tightening your gas cap enough can cause the check engine light to turn on, so that should be the first thing you check on. If you’ve got some car repair experience, you might try replacing individual parts if the problem persists, but it will likely be a timesaver to bring your vehicle to a Mazda certified professional.

Make the Trip From Shelby to Get Help at Mazda of Gastonia

Fortunately, the factory-trained experts at Mazda of Gastonia can diagnose and repair whatever is causing your check engine light to cry for help. Schedule an appointment today, or just visit us during our regular hours if you see warning lights you’re not aware of.


Our Service Specials

Oil and Filter Change

$10.00 Off With Coupon

Changing your Mazda’s oil and filter regularly is your first step to help ensure its long life and dependability.
• Change motor oil per specifications
• Install a Genuine Mazda oil filter
• Check all fluid levels

*Synthetic oil extra/Up to 5 Quarts

Plus applicable taxes. Valid only at MAZDA OF GASTONIA. Cannot be used with any other applicable offer. Mazda vehicles only. Some vehicles may be slightly higher. Hazardous waste fee and shop supplies fee if applicable. Please present offer at time of write-up. No cash value. Coupon expires 03/31/24.

EXPIRES: 03/31/2024

4-Wheel Alignment Special

$79.95 With Coupon

Poorly aligned wheels wear out tires prematurely and reduce gas mileage. Service includes:
• Inspect/adjust caster, camber and toe-in as applicable
• Inspect suspension and steering linkage
• Check tire wear
• Check tire pressure, adjust as necessary
• Computerized alignment
• Road test

Plus applicable taxes. Valid only at MAZDA OF GASTONIA. Cannot be used with any other applicable offer. Mazda vehicles only. Some vehicles may be slightly higher. Hazardous waste fee and shop supplies fee if applicable. Please present offer at time of write-up. No cash value. Coupon expires 03/31/24.

EXPIRES: 03/31/2024

Mazda Service Savings

-$10.00 off service $100.00 to $199.99
-$20.00 off service $200.00 to $299.99
-$30.00 off service $300.00 or more
*Excludes Tires

Plus applicable taxes. Valid only at MAZDA OF GASTONIA. Cannot be used with any other applicable offer. Mazda vehicles only. Some vehicles may be slightly higher. Hazardous waste fee and shop supplies fee if applicable. Please present offer at time of write-up. No cash value. Coupon expires 03/31/24.

EXPIRES: 03/31/2024

Front or Rear Brake Special

$199.99 With Coupon

Come in to receive a special discount on the brake service you need. * Lifetime Ltd. Warranty on all Genuine Mazda & Value Products by Mazda Brake Pads & Shoes. *Starting at $199.99 per axle.

Plus applicable taxes. Valid only at MAZDA OF GASTONIA. Cannot be used with any other applicable offer. Mazda vehicles only. Some vehicles may be slightly higher. Hazardous waste fee and shop supplies fee if applicable. Please present offer at time of write-up. No cash value. Coupon expires 03/31/24.

EXPIRES: 03/31/2024

Cabin & Engine Air Filter Special

$10.00 Off With Coupon

A new cabin air filter and engine air filter will reduce airborne impurities and prolong engine life. Purchase together and save.

Plus applicable taxes. Valid only at MAZDA OF GASTONIA. Cannot be used with any other applicable offer. Mazda vehicles only. Some vehicles may be slightly higher. Hazardous waste fee and shop supplies fee if applicable. Please present offer at time of write-up. No cash value. Coupon expires 03/31/24.

EXPIRES: 03/31/2024

Front Wiper Blade Replacement

$24.95 With Coupon

Are your front wipers streaking or noisy? Replace them with Genuine Mazda wiper blades.
*Easy and fast installation, sold per pair

Plus applicable taxes. Valid only at MAZDA OF GASTONIA. Cannot be used with any other applicable offer. Mazda vehicles only. Some vehicles may be slightly higher. Hazardous waste fee and shop supplies fee if applicable. Please present offer at time of write-up. No cash value. Coupon expires 03/31/24.

EXPIRES: 03/31/2024

Coolant System Service Special

$139.95 With Coupon

Cooling system regulates engine temps for cold and warm weather. Service includes:
-Check and drain cooling system
-Pressure test system and refill with up to one gallon of coolant
-Check all fluids

Plus applicable taxes. Valid only at MAZDA OF GASTONIA. Cannot be used with any other applicable offer. Mazda vehicles only. Some vehicles may be slightly higher. Hazardous waste fee and shop supplies fee if applicable. Please present offer at time of write-up. No cash value. Coupon expires 03/31/24.

EXPIRES: 03/31/2024

Complimentary Multi-Point Inspection! Plus...

10% Off With Coupon

Our Multi-Point Inspection provides you with a comprehensive review of your Mazda’s most crucial components. PLUS, save on any recommended repairs.
*Max. discount $100; not valid on tires

Plus applicable taxes. Valid only at MAZDA OF GASTONIA. Cannot be used with any other applicable offer. Mazda vehicles only. Some vehicles may be slightly higher. Hazardous waste fee and shop supplies fee if applicable. Please present offer at time of write-up. No cash value. Coupon expires 03/31/24.

EXPIRES: 03/31/2024

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