Check Engine Light: Metro Detroit, Don’t Ignore These Top 5 Causes

August 25, 2025

Check Engine Light: Metro Detroit, Don’t Ignore These Top 5 Causes 

When your check engine light comes on, it can feel like a guessing game. Some causes are minor, but others could leave you stranded on the side of I-75. At Car Aid Auto Repair, our ASE-certified technicians specialize in fast, accurate diagnostics — saving you time and money. 



⚠ Top 5 Reasons Your Check Engine Light Might Be On 

1. Loose or damaged gas cap – causes fuel vapor leaks.

2. Faulty oxygen sensor – hurts fuel efficiency.

3. Bad catalytic converter – can damage your engine.

4. Failing spark plugs/ignition coils – causes rough starts.

5. Mass airflow sensor issues – reduces performance. 



🛠 How Car Aid Diagnoses the Issue 

We use state-of-the-art diagnostic tools to pinpoint the problem — no guessing, no unnecessary parts swapping. 



📍 Check Engine Diagnostics Near You 

● Shelby Township – 23 Mile & Van Dyke

● Troy – Brinston Dr

● Waterford – Highland Rd

● Southfield – Lahser Rd 



👉 Book Your Check Engine Light Inspection Today 

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