Technical Service Bulletin N192210220 — 2014 CADILLAC CTS
ENGINE
Bulletin Details
| TSB ID | N192210220 |
| Manufacturer | |
| Vehicle | 2014 CADILLAC CTS |
| Component | ENGINE |
| Communication Date |
Bulletin Summary
N192210220 - Special Coverage Adjustment - Certain vehicles may have a condition that could cause bearings in the engine supercharger to emit an excessive rattling or knocking noise that is especially prominent at idle. (A low-level mechanical thrumming noise from the supercharger at idle by contrast is normal in these vehicles and does not indicate a problem). The excessive noise at issue here will typically go away when the engine RPM is raised slightly above idle. However, if left uncorrected, the problem, over time, may lead to contamination of the lubricating grease and cause the bearing to squeal. If left unaddressed, the bearing may overheat and can cause supercharger seizure or a no-start condition. Dealers are to replace the supercharger as necessary. The repairs will be made at no charge to the customer.
About Technical Service Bulletins
A Technical Service Bulletin (TSB) is a document issued by a vehicle manufacturer to its dealers, describing a known issue with a specific vehicle or set of vehicles and the recommended procedure to fix it. Unlike recalls, TSBs are not mandatory and are typically only performed if an owner reports the related issue. However, TSBs can be an indicator of common problems with a vehicle.