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Best Check Engine Light Diagnosis in Denver, CO (2026)

Find check engine light diagnosis specialists near Denver, CO. Browse verified shops, compare ratings, and get direct contact info.

10 listings·4.5avg rating
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R&M AUTOMOTIVE
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R&M AUTOMOTIVE

Denver, CO

Expert vehicle maintenance and personalized auto repair services in Denver.

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Automotive Revival
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Automotive Revival

Denver, CO

Your trusted partner for comprehensive auto repair and maintenance in Denver

4.9(232)
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Mancinelli's Auto Repair Center
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Mancinelli's Auto Repair Center

Denver, CO

Expert auto repair services in Denver with a focus on hybrids and electric vehicles.

4.8(775)
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Arturo's Shop LLC
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Arturo's Shop LLC

Denver, CO

Your trusted local auto repair shop in Denver, specializing in quality service and maintenance.

4.7(141)
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Downing Street Garage
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Downing Street Garage

Denver, CO

Expert auto repair in Denver with a focus on trust and transparency.

4.7(487)
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Astro Automotive
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Astro Automotive

Denver, CO

Denver's trusted auto repair shop since 1972, offering honest service and expert care.

4.7(203)
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Motorized Solutions
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Motorized Solutions

Denver, CO

Reliable auto repair services in Denver since 2015.

4.7(333)
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OBD Auto Repair
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OBD Auto Repair

Denver, CO

Expert auto repair services in Denver with a focus on quality and customer satisfaction.

4.3(30)
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Midtown Automotive
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Midtown Automotive

Denver, CO

Your trusted partner for comprehensive auto repair and maintenance in Denver.

4.1(128)
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My Mobile Mechanic of Denver
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My Mobile Mechanic of Denver

Denver, CO

Convenient mobile mechanic services bringing repairs to your location in Denver.

3.7(6)
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Check Engine Light Diagnosis Nearby

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Frequently Asked Questions about Check Engine Light Diagnosis in Denver

How much does a check engine light diagnostic cost in Denver?
Many shops in Denver offer free OBD-II code scanning; a full diagnostic to identify the root cause typically costs $75–$150. Some shops waive the diagnostic fee if you proceed with the repair.
Is it safe to drive with the check engine light on in Denver?
It depends on the code. A steady light is usually not an emergency, but don't ignore it for more than a week. A flashing check engine light signals an active misfire that can damage your catalytic converter — pull over safely and call a shop.
Can I reset the check engine light myself?
You can clear codes with an OBD-II scanner, but the light will return if the underlying problem isn't fixed. Address the root cause first — a shop can identify it properly and let you know what's actually wrong.
What are the most common check engine light causes?
Common culprits include a loose or failing gas cap, an oxygen sensor, catalytic converter issues, spark plugs, a mass airflow sensor, or an EVAP leak. A diagnostic scan will pinpoint the exact fault code.

Check Engine Light Diagnosis in Denver, CO

Check engine light on in Denver, Colorado? AutoGnome lists shops that offer OBD-II scanning and full diagnostics. Find a trusted shop, compare ratings, and get a diagnosis — no guessing required.

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