Mon - Fri 8:30 - 5:00 | Sat - Sun Closed

579 County Line Rd Unit C Palmer Lake, CO 80133

Check Engine Light Diagnostics & Repair in Colorado Springs

Getting To The Bottom Of That Dashboard Warning

That little orange “Check Engine” icon is one of the most misunderstood lights on your dashboard. It doesn’t necessarily mean your engine is about to fail, but it is your car’s way of saying that one of its many sensors has detected a problem that affects performance or emissions. In the thin air of Colorado Springs, everything from a loose gas cap to a failing oxygen sensor can trigger this light. We provide professional-grade diagnostics to skip the guesswork and find out exactly what your car is trying to tell you.

With over 50 years of combined experience, our technicians use factory-level scanning equipment that goes far beyond the basic code readers found at local parts stores. We don’t just “pull a code” and start replacing parts; we perform a deep-dive analysis of your vehicle’s live data to see how the engine is actually behaving in real-time. Whether it’s a minor vacuum leak or a complex timing issue, we pinpoint the root cause so we can fix it right the first time, restoring your car’s efficiency and peace of mind.

Schedule service

Common Reasons For A Check Engine Light

There are hundreds of potential codes, but in our experience, these are the most frequent culprits we see in the Front Range:

Oxygen (O2) Sensor Failure: These sensors monitor how much unburnt oxygen is in the exhaust; if they fail, your gas mileage will plummet.

Loose or Damaged Gas Cap: A surprisingly common issue—if the cap doesn’t seal, it allows fuel vapors to escape, triggering an EVAP system code.

Catalytic Converter Issues: Often caused by ignoring smaller problems like misfires or sensor failures over a long period.

Mass Air Flow (MAF) Sensor: This sensor tells the computer how much air is entering the engine; if it’s dirty or failing, you’ll experience jerking or stalling.

Spark Plug or Ignition Coil Problems: If your engine “misfires,” the computer will immediately trigger the light to protect the engine from damage.

Vacuum Leaks: Small cracks in rubber hoses can let “unmetered” air into the engine, causing a rough idle and a “Lean” code.

Thermostat Issues: If your engine isn’t reaching the proper operating temperature, the computer will flag it as an efficiency problem.

Why Drivers Trust
Big Mission Automotive

A superior service experience built on expertise, integrity, and convenience.

Highly-Trained Technicians
Over 50 years combined experience
2 Year / 24k Mile In-Shop Warranty
3 Year / 36k Mile Nationwide Warranty
Loaner Vehicles
Shuttle Service

Rated 5-Stars by Hundreds of Drivers

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Tom Vorpahl
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Great service and reasonable
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Rick & Kim Hollm
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Great service & warranty, and they backup their work, provide quick service & scheduling and loaner cars during service. Always friendly, competent, honest service. You can’t ask for more.
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Art A profile picture
Art A
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I can't say enough good things about Big Mission Automotive. I wish every shop, dealer or otherwise operated like this. These guys know their stuff. They don't just rely on codes. This is old school mechanics in a very positive way. Steve is super friendly and knowledgeable. The staff themselves do great work. They give you options and explain in detail what service your vehicle needs or may need. They give you options. This is the first independent shop I know of that offers you a ride or even a loaner for the day. Just fantastic service. I feel very fortunate to have them so close to the house. They definitely have my business for my Porsche.
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jack kennedyjr
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The service is excellent. Steve, Jason and the crew of technicians know how to perform. Have used them for all my Mercedes. Thanks
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B
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Big Mission Automotive is amazing. I am so happy to have found them. The service was superb. I’ve got my new automotive forever shop. Thanks.
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Scott Fischer profile picture
Scott Fischer
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Great shop. Great people. Great service. If you've been looking for an honest mechanic who will shoot you straight and treat your vehicle like their own, look no further. Five stars. Will be back!
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Doug Bishop profile picture
Doug Bishop
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Always professional. Quick and easy drop off and pick up. Great to get a loaner. They communicate well the details of the diagnosis and repair.
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Lorrie Kresge
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So glad that I gave Big Mission Auto a chance with my 80,000 mile check on my Audi Q5. They were efficient, offered to take me back home, and also resolved the yellow engine light on my dash. Great communication all day and a fair price for their services. Don’t get out of there without sampling some custom coffee from their commercial quality machine. I’m so glad to have found a local business to care for my car.
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Kurt Coey
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New to the area and was looking for a trustworthy local shop. Found them to be honest, helpful and very accommodating. I certainly plan on continuing to take both our vehicles here for future service.
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Luke
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Everyone is friendly, professional and respectful. The time allowed for the service was good and the pricing is fair.

Ready for a Better
Automotive Experience?

Whether it’s scheduled routine maintenance or an unexpected breakdown, our experienced, factory-trained technicians are dedicated to providing premium service with the utmost care from start to finish.