Check Engine Light Diagnostic | Greulich's Automotive

Possible Check Engine Light Problems

A good day can quickly turn into a bad one if the dreaded check engine light in your vehicle suddenly comes on. The issue could be something minor, like a loose gas cap, or it could be a much more serious and costly problem. Your car's check engine light is a warning that something is wrong that needs to be serviced or repaired. Ignoring this warning can have devastating consequences - costing you a lot of extra money and hassle in the long run. Below is a list of a few of the possible problems that could cause your check engine light to activate.

  • Catalytic converter failure
  • Circuit malfunction
  • Cylinder misfire
  • Faulty oxygen sensor
  • Faulty spark plugs or spark plug wires
  • Insufficient exhaust gas recirculation (EGR) flow
  • Issue with mass air flow (MAF) sensor or MAF circuit
  • Loose or faulty gas cap

Check Engine Light Diagnostic in Chandler | Greulich's Automotive

Our technicians can help pinpoint the exact cause

Although most auto parts stores provide a free diagnostic reading when your check engine light comes on, that reading will likely not be sufficient to pinpoint the exact issue that activated the warning light. There are literally hundreds of codes that can trigger your check engine light, and these codes don't necessarily point to a precise cause of the problem. Rather, they tell technicians where to begin looking for the problem. For that reason, it is important to take your vehicle to a professional automotive repair center if the check engine warning light suddenly comes on.

At Greulich's, our ASE certified automotive technicians will provide a manual inspection in conjunction with a computer diagnosis in order to identify the root of the problem and make all necessary repairs.