Service Manual

ISB, ISBe and QSB (Common Rail [...] Radiator Pressure Cap
Section 8 - Cooling System - Group 08 Page 8-73
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WARNING
If a liquid refrigerant system (air conditioning) is
used, wear eye and face protection, and wrap a cloth
around the fittings before removing. Liquid refrigerant
can cause serious eye and skin injuries.
WARNING
To protect the environment, liquid refrigerant systems
must be properly emptied and filled using equipment
that prevents the release of refrigerant gas into the
atmosphere. Federal law requires capturing and
recycling the refrigerant.
Use care in removing the refrigerant system, if equipped,
before removing the radiator.
Radiator Hoses (008-045)
Inspect for Reuse
Inspect all hoses for cracks, cuts, or collapsing.
NOTE: The silicone engine coolant hose will exhibit
swelling because of the elasticity of the hose.
Radiator Pressure Cap (008-047)
General Information
The cooling system is designed to use a pressure cap to
prevent boiling of the coolant. Refer to the OEM's cooling
system specifications for the correct radiator pressure cap
for your application.
An incorrect or malfunctioning cap can result in the loss of
coolant and the engine running hot.
Inspect for Reuse
Be sure the correct radiator pressure cap is being used.
Inspect the rubber seal of the pressure cap for damage.
Inspect the radiator fill neck for cracks or other damage.
Refer to the OEM service manual for instructions if the fill
neck is damaged.