Oldsmobile Silhouette: P0171 and P0174 Diagnosis

P0171 and P0174 both indicate that there is a lean condition present in your Oldsmobile Silhouette.  By themselves, these are some of the most common OBD2 codes.   When they appear together, it indicates that the entire engine is running lean. Definition Both of these codes are generic, which means they have the same meaning … Read more

Oldsmobile Silhouette:  Clutch Slipping → Diagnosis

Your Oldsmobile Silhouette’s clutch provides a direct connection between the engine and transmission.  Without it, it can’t move at all. This connection requires a tremendous amount of pressure.  This guide is intended to help you determine why your clutch is slipping on the flywheel. Note:  This article is for manual cars only.  Here’s the automatic … Read more

Oldsmobile Silhouette Shifting Hard: Causes + Diagnosis

One of the most common automatic transmission problems is shifting hard.  If your Oldsmobile Silhouette has a hard shifting transmission, it can be uncomfortable to drive and a sign of serious problems. If your van’s transmission is shifting hard, it can cause a harsh ride and lead to potential damage over time. Numerous factors can … Read more