B3.9 and B5.9 Series Engines
Cooling System Diagnostics (008-020)
Section 8 - Cooling System - Group 08
Gauges, Overfueling, and Loading
Gauges and sensors are used in the system to measure the
coolant temperature. These can malfunction and provide
an incorrect temperature indication.
Overfueling can cause the engine to overheat. Make
sure that the fuel pump is calibrated correctly.
Constant overloading (lugging) can cause the engine to