TSB Document:

Affected Component: ENGINE AND ENGINE COOLING:ENGINE:DIESEL

Summary
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.

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Date Published
AUG 04, 2015
NHTSA TSB #
10114646
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