You just paid hundreds to fix that check engine light, and now it's glowing again like it never left. Frustrating doesn't even cover it. Here's what probably happened: the shop fixed the symptom but missed the root cause. Maybe they cleared the code without running a full diagnostic, or they replaced a sensor when the real problem was clogged exhaust components. If you've got a diesel, this happens all the time with DPF issues. A good Mechanic Detroit MI will tell you upfront if they need to dig deeper instead of just resetting codes and hoping for the best. When that light returns within days or weeks, you're looking at incomplete DPF Diagnostic and Repair near me or a misdiagnosis from the start. Diesel Highway INC : https://www.google.com/maps?cid=13598199990998753202 Find out more : https://socialytime.com/blogs/138261/Why-Your-Check-Engine-Light-Came-Back-On-Right-After