Technical Service Bulletin PIP5522D — 2017 CHEVROLET LOW CAB FORWARD 5500
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | PIP5522D |
| Manufacturer | |
| Vehicle | 2017 CHEVROLET LOW CAB FORWARD 5500 |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
This Preliminary information communicates A vehicle may have a concern of engine noise and/or a misfire. This may be caused by a broken rocker arm. A broken rocker arms that could result in the valve dropping to the cylinder, causing a catastrophic failure and the engine requires replacement due to cylinder head and block damage. If a broken rocker arm is found check to see if the valve dropped into the cylinder if so the engine will need to be replaced. On occasions the valve will not drop, reinstall any valve keepers and replace all the intake rocker arms.
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.