1. Disconnect negative cable.
WARNING: Do not remove pressure cap with the
2. Drain cooling system (Refer to 7 - COOLING -
3. Remove radiator lower hose from thermostat hous-
4. Remove nuts (3) from heater tube flange studs.
5. Loosen starter bolt at heater tube bracket.
6. Pull heater tube out of thermostat housing and
position out of the way.
7. Remove bolt (3) and two studs.
8. Remove thermostat housing (1), O-ring (2) and
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