This Preliminary Information communication provides information to the technician on the proper steps for filling the coolant system for vehicles with a diesel engine and rear heater systems. Dealer will need to review and use Service Information procedures for Cooling System Draining and Filling (Vac-N-Fill Diesel) after all cooling system repairs are made. When filling the cooling systems on vehicles that have been up-fitted with rear heaters, such as ambulances or buses, ensure that the rear heater is purged of all air.
This Preliminary Information communication provides information to the technician on the proper steps for filling the coolant system for vehicles with a diesel engine and rear heater systems. Dealer will need to review and use Service Information procedures for Cooling System Draining and Filling (Vac-N-Fill Diesel) after all cooling system repairs are made. When filling the cooling systems on vehicles that have been up-fitted with rear heaters, such as ambulances or buses, ensure that the rear heater is purged of all air.
