Technical Service Bulletin GCUS-3-811 — 2015 CHEVROLET EXPRESS
ENGINE AND ENGINE COOLING
Bulletin Details
| TSB ID | GCUS-3-811 |
| Manufacturer | |
| Vehicle | 2015 CHEVROLET EXPRESS |
| Component | ENGINE AND ENGINE COOLING |
| Communication Date |
Bulletin Summary
31170 01 - Service Update. Certain vehicles may have contact between the rear leaf spring shackle bolt and rear HVAC coolant lines that may rub through creating a coolant leak. This leak may cause the engine to overheat, leading to loss of propulsion or loss of HVAC performance. Dealers will replace the shackle bolt; inspect and, if necessary, replace the auxiliary heater hose.
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.
Other TSBs for the 2015 CHEVROLET EXPRESS
25-NA-052
ENGINE
10-06-05-002M
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
20NA142
POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT
PIE-0431A
VISIBILITY:POWER WINDOW DEVICES AND CONTROLS
17-NA-253
ENGINE
29400
FUEL SYSTEM, DIESEL
29400
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
GCUS-3-719
ENGINE AND ENGINE COOLING
51-06202016-0213
EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
16-NA-153
FUEL SYSTEM, OTHER:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS