Oldsmobile Silhouette:  Bad ECM → Symptoms + Diagnosis

Your Oldsmobile Silhouette’s ECM (Engine Control Module) is its brain.  Just like a human’s brain, your Silhouette 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

Oldsmobile Silhouette 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 Oldsmobile Silhouette 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