REMOVAL & INSTALLATION
See Figures 1, 2, 3, 4, and 5
Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.
- Disconnect the negative battery cable.
- Place fender covers on the aprons.
- Drain the cooling system to a level below the thermostat.
- Loosen the top radiator hose clamp at the radiator.
- Remove the thermostat housing mounting bolts and lift up the housing.
- Remove the thermostat by turning counterclockwise.
- Clean the thermostat housing and engine gasket mounting surfaces.
- Install new mounting gasket and fully insert the thermostat to compress the mounting gasket. Turn the thermostat clockwise to secure in housing.
- Position the housing onto the engine. Install the mounting bolts and tighten to 72-96 inch lbs. 7-11 Nm) on 1981-87 gasoline models. On 1988-90 gasoline models, tighten the mounting bolts to 10-16 ft. lbs. (13-19 Nm). On diesel engines, tighten the mounting bolts to 60-84 inch lbs. (7-10 Nm).
- Refill the cooling system.
- Connect the negative battery cable, start the engine and check for leaks.