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