Hyundai Equus: Bad Motor Mount → Symptoms + Diagnosis

While your Hyundai Equus’s engine mounts can last the life of the entire vehicle, it is possible that they will go bad.  Vibration and a clunking sound are the two most noticeable symptoms when driving the vehicle.  There are plenty of visible signs as well. Engine mounts connect the engine to the frame of the … Read more

Hyundai Equus:  Bad ECM → Symptoms + Diagnosis

Your Hyundai Equus’s ECM (Engine Control Module) is its brain.  Just like a human’s brain, your Equus can’t function without it. It is sometimes referred to as the ECU or PCM.  It’s all the same thing. The ECM controls and directs your entire drivetrain (unless there is a serrate transmission controller). When an ECM starts … Read more

Hyundai Equus P0353 Diagnosis

P0353 is a generic OBD2 code that indicates that ignition coil “C” has an issue with the primary or secondary wiring circuits.  It has the same meaning for the Hyundai Equus as it would any other vehicle.  It is typically caused by a bad coil pack or wiring harness issue, although there can be caused … Read more