Caterpillar · Canada · Mod
Caterpillar 3306B Engine, 3406B Engine: Fuel System
Affects Caterpillar 3306B Engine, 3406B Engine · 1987–1992 — about 4K vehicles.
The hazard
SUBJECT ENGINES MAY EXPERIENCE A LOSS OF THE GOVERNOR SERVO PIN. THIS WOULD RESULT IN THE ENGINE AND VEHICLE CONTINUING AT THEIR RESPECTIVE SPEEDS UNTIL A CHANGE IN LOAD OCCURS (I.E. TERRAIN, BRAKES OR CLUTCH) AND ENGINE BRAKING COULD BE REDUCED WITH A SUBSEQUENT INCREASE IN STOPPING DISTANCE AND THE RISK OF A CRASH. CORRECTION: THE GOVERNOR RACK SERVO CYLINDER ASSEMBLY WILL BE REPLACED ON AFFECTED ENGINES.
What to do
Contact your dealer; the remedy details were not included in the filing.
Critical — crash/injury risk now
High — injury risk; see remedy
Moderate — fix at next service
Low — minor / informational