The engine cooling fan blades may break due to inadequate blade strength around the rivets that attach the blades to the fan spider.
Engine & cooling
Mack CH Engine problems by year
1 complaints filed with NHTSA about the Mack CH's engine & cooling. Stalling, loss of power, oil consumption, overheating, head gaskets, timing chains and engine failure.
Engine complaints by model year
Engine recalls
Latest CH engine complaints
Serious vibration, resulting in several transmission/engine repairs to no avail.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data