Cooling System: Other Hyundai Accent III

Thermostat

Note. Disassembly of the thermostat would have an adverse effect, causing a lowering of cooling efficiency.

Scheme 10

1. Drain the engine coolant so its level is below thermostat.
2. Remove the water inlet fitting (A), gasket (B) and thermostat (C).

Scheme 11

Scheme 12

Scheme 13

Scheme 14

Scheme 15

Scheme 16

Scheme 17

1. Drain the engine coolant. Remove the radiator cap to speed draining.
2. Remove the upper radiator hose (A) and lower radiator hose (B).
3. Remove the ATF (Automatic Transaxle Fluid) oil cooler hoses (C). (A/T)
4. Disconnect the fan motor connector (A, B).
5. Remove the cooling fan mounting bolt (A, B) and remove cooling fan.
6. Remove the radiator upper bracket (A, B), then pull up the radiator.

Scheme 18

1. Check each part for cracks, damage or wear, and replace the coolant pump assembly if necessary.
2. Check the bearing for damage, abnormal noise and sluggish rotation, and replace the coolant pump assembly if necessary.
3. Check for coolant leakage. If coolant leaks from hole, the seal is defective. Replace the coolant pump assembly. NOTE: A small amount of "weeping" from the bleed hole is normal.

Scheme 19

1. Immerse the thermostat in water and gradually heat the water.
2. Check the valve opening temperature. Valve opening temperature: 88 ± 1.5 °C (190.4 ± 2.7 °F) Full opening temperature: 100 °C (212 °F) If the valve opening temperature is not as specified, replace the thermostat.
3. Check the valve lift. Valve lift: 8 mm (0.3 in) or more at 100 °C (212 °F) If the valve lift is not as specified, replace the thermostat.

Scheme 20

Scheme 21

1. Disconnect the cooling fan motor connector.
2. Check that the radiator fan rotates when battery voltage is applied between (+) and (-) terminals.

Scheme 22

1. Install the water pump. Install the water pump (C) and a new gasket with the 3 bolts (B). Tightening torque: 11.8 ~ 14.7 N.m (1.2 ~ 1.5 kgf.m, 8.7 ~ 10.8 lb-ft) Install the alternator brace (D) with the 2 bolts (A). Tightening torque: 19.6 ~ 23.5 N.m (2.0 ~ 2.4 kgf.m, 14.5 ~ 17.4 lb-ft)
2. Install the timing belt idler.
3. Install the timing belt.
4. Install the water pump pulley.
5. Install the drive belts.
6. Tighten the water pump pulley bolts. Tightening torque: 7.8 ~ 9.8 N.m (0.8 ~ 1.0 kgf.m, 5.8 ~ 7.2 lb-ft)
7. Fill with engine coolant.
8. Start engine and check for leaks.
9. Recheck engine coolant level.

Scheme 23

1. Place the thermostat in thermostat housing. Install the thermostat (B) with the jiggle valve upward. Install a new gasket (A) to the thermostat (B).
2. Install the water inlet fitting (A). Tightening torque: 14.7 ~ 19.6 N.m (1.5 ~ 2.0 kgf.m, 10.8 ~ 14.5 lb-ft)
3. Fill with engine coolant.
4. Start engine and check for leaks.

Scheme 24

Scheme 25

Scheme 26

Scheme 27

Scheme 28

Scheme 29

Scheme 30

1. Install the radiator.
2. Install the radiator upper bracket (A, B). Tightening torque: 6.9 ~ 10.8 N.m (0.7 ~ 1.1 kgf.m, 5.1 ~ 8.0 lb-ft)
3. Install the cooling fan mounting bolts (A, B). Tightening torque: 6.9 ~ 10.8 N.m (0.7 ~ 1.1 kgf.m, 5.1 ~ 8.0 lb-ft)
4. Connect the fan motor connector (A, B).
5. Install the upper radiator hose (A) and lower radiator hose (B).
6. Install the ATF (Automatic Transaxle Fluid) oil cooler hoses (C).
7. Fill with engine coolant.
8. Start engine and check for leaks.