For 1990-2009 cars only
Removal Procedure
- Drain the engine cooling system to a level below that of the thermostat housing. Refer to Cooling System Draining and Filling .
- For a 1.3L engine, release the hose clamp in order to remove the upper radiator hose at the thermostat housing cap (3).
- For a 1.0L engine, release the hose clamp in order to remove the upper radiator hose at the thermostat housing cap (4).
- Remove the two retaining bolts in order to remove the water outlet from the housing.
- Remove the thermostat and gasket from the thermostat housing.
- Ensure that the thermostat air bleed valve (2) is clear. The engine could overheat if this valve becomes clogged.
- Inspect the valve seat for foreign matter that is preventing the valve from seating.
- Test the thermostat for proper operation. Refer to Thermostat Diagnosis .
Installation Procedure
- Install the thermostat and new gasket to the housing.
- Install the water outlet to the housing.
- Secure the water outlet to the housing with two retaining bolts.
- Install the upper radiator hose to the thermostat cap.
- For a 1.3L engine, secure the hose with a hose clamp (3).
- For a 1.0L engine, secure the hose with a hose clamp (4).
- Refill the engine cooling system. Refer to Cooling System Draining and Filling .
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Tighten
Tighten the water outlet retaining bolts to 20 N·m (15 lb ft).
