What a Diagnostic Includes
- Scan — we read stored trouble codes from your vehicle’s computer.
- Test — we verify the cause with inspection and testing rather than guessing.
- Explain — you get a plain-language explanation of what’s wrong.
- Estimate — a clear estimate before any repair begins.
Common Reasons the Check Engine Light Comes On
- Loose or faulty gas cap
- Oxygen sensor or mass airflow sensor problems
- Worn spark plugs or ignition coils (misfires)
- Catalytic converter issues
- Evaporative emissions (EVAP) leaks
A flashing check engine light usually signals a serious misfire. Reduce speed, avoid hard acceleration and get it checked right away.
Other Warning Lights & Symptoms We Diagnose
Beyond the check engine light, we diagnose ABS and brake warning lights (see brake repair), battery and charging lights, overheating, rough idle, strange noises, vibrations and poor fuel economy.
Frequently Asked Questions
If it’s steady and the car drives normally, you can usually drive short-term but should get it checked soon. If it’s flashing, or the car runs rough, reduce load and get it looked at right away.
Call (720) 492-8686 and ask — a code only suggests where to look, so we recommend a proper diagnosis to find the true cause.
A diagnostic is a charged service, so you can add our free brake inspection — see details.