CLOSED COOLING SYSTEM SERVICE MANUAL NUMBER 22
Page 6B-22 90-860074--1 FEBRUARY 2002
Thermostats
Removal
1. Refer to Draining Instructions as previously outlined, and drain coolant.
2. Remove closed cooling system hose between thermostat housing and heat exchanger.
3. Remove thermostat housing cover screws and washers, including the cover spacer.
NOTE: Components shown removed for visual clarity only. It is not necessary to remove the
housing itself.
73973
a
b
c
d
e
f
a-Hose and Clamps
b-Thermostat Housing Cover
c-Screws and Washers (5)
d-Stud
e-Washer
f-Spacer (For Engine Cover)
4. Remove housing cover.
IMPORTANT: Do NOT allow old gasket material or debris inside, which might foul
cooling system passages.
5. Remove old gasket.
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