Pre-heating
Problem
Glow plug does not glow red hot
Engine
Possible Causes
Faulty glow plug
Faulty glow plug relay
Damaged wiring or connector
All four glow plugs burnt out / ends melted – injection
pump timing out of adjustment (engine overheating)
See Chapter 5 - Electrical System
Page 3 - 24 Rev. B
Groundsmaster 455-D