COOLING SYSTEM
PRESSURE RELIEF VALVE SERVICING
PRESSURE RELIEF
VALVE SERVICING
The pressure relief valve assembly should be ser-
viced at the same time as the thermostat.
Disassembly
Remove the EMM. Refer to EMM SERVICING on
p. 110.
Remove the four screws holding the electrical har-
ness base.
1
1. Harness base screws
Loosen electrical harness connections as neces-
sary to lift harness base away from the pressure
relief valve.
Remove screws and cover from pressure valve
assembly.
1
1. Pressure valve cap screws
Remove the pressure relief valve assembly.
224
Inspection
Inspect all parts for cracks, heat damage, or signs
of corrosion. Replace damaged parts. Clean
debris from housing and parts.
Pressure relief valve assembly components
Assembly
1
Assembly is the reverse of disassembly. Pay
close attention when performing the following
additional tasks.
005378
Tighten cover screws to a torque of 60 to 84 in.
lbs. (7 to 9.5 N·m).
1
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