Engine Cooling System: Removal & Installation Pontiac Vibe I

Removal Procedure

1. Drain the cooling system. Refer to «DRAINING AND FILLING COOLING SYSTEM»(ref-186684-S38399049652005083100000) .
2. Loosen and remove the radiator inlet hose from the radiator.
3. Disconnect the PCV hose to gain access to the radiator inlet hose at the cylinder head.
4. Loosen and remove the radiator inlet hose from the cylinder head.
5. Remove the radiator hose.

Installation Procedure

1. Position the radiator hose.
2. Install the radiator inlet hose clamp at the cylinder head.
3. Connect the PCV hose.
4. Install the radiator inlet hose clamp at the radiator.
5. Refill the cooling system. Refer to «DRAINING AND FILLING COOLING SYSTEM»(ref-186684-S38399049652005083100000) .

1. Drain the cooling system. Refer to «DRAINING AND FILLING COOLING SYSTEM»(ref-186684-S38399049652005083100000) .
2. Loosen and remove the radiator outlet hose from the radiator.
3. Loosen and remove the radiator outlet hose from the thermostat housing.
4. Remove the radiator hose.

1. Position the radiator hose.
2. Install the radiator outlet hose clamp at the thermostat housing.
3. Install the radiator outlet hose clamp at the radiator.
4. Refill the cooling system. Refer to «DRAINING AND FILLING COOLING SYSTEM»(ref-186684-S38399049652005083100000) .

Scheme 29

1. Remove the radiator. Refer to «RADIATOR REPLACEMENT»(ref-186684-S39230333032005083100000) .
2. Remove two radiator fan mount bolts.
3. Remove the radiator fan with the motor

Scheme 30

1. Position the radiator fan with the motor NOTE: Refer to «FASTENER NOTICE»(ref-175132-S17785009232005041500000) in Cautions and Notices.
2. Install two radiator fan mount bolts. Tighten Tighten the radiator fan bolts to 3.8 N.m (34 lb in).
3. Install the radiator. Refer to «RADIATOR REPLACEMENT»(ref-186684-S39230333032005083100000) .

Scheme 31

1. Remove the cover from fuse and relay block.
2. Remove the fan No. 1 relay (2) or the engine main relay from fuse and relay block.

Scheme 32

1. Install the fan No. 1 relay (2) relay or the engine main relay in fuse and relay block.
2. Install the cover to fuse and relay block.

Scheme 33

1. Drain the cooling system. Refer to «DRAINING AND FILLING COOLING SYSTEM»(ref-186684-S38399049652005083100000) .
2. Remove the following components from the cylinder block: The 2 nuts (1) The thermostat housing
3. Remove the following components from the thermostat housing: The thermostat The O-ring
4. Clean the following materials from the thermostat cap: Corrosion Debris
5. Clean the cylinder block mating surfaces.
6. Inspect the thermostat. Refer to «THERMOSTAT DIAGNOSIS»(ref-186684-S40879554262005083100000) .

Scheme 34

Scheme 35

1. Install the thermostat.
2. Install a new thermostat O-ring.
3. Install the thermostat housing to the cylinder block. NOTE: Refer to «FASTENER NOTICE»(ref-175132-S17785009232005041500000) in Cautions and Notices.
4. Use the 2 nuts (1) in order to secure the thermostat cap. Tighten On low output engine, tighten the thermostat cap nuts to 11 N.m (8 lb ft). On high output engine, tighten the thermostat cap nuts to 10 N.m (7 lb ft).
5. Fill the radiator using approved coolant. Refer to «DRAINING AND FILLING COOLING SYSTEM»(ref-186684-S38399049652005083100000) .
6. Start the engine.
7. Run the engine until the coolant is at operating temperature. The coolant is at operating temperature when the following conditions exist: The hoses feel warm. The coolant is flowing through the radiator.
8. Inspect for leaks in the cooling system.
9. Turn off the engine.
10. Install the radiator cap.

Scheme 36

1. Disconnect the negative battery cable.
2. Drain the cooling system. Refer to «DRAINING AND FILLING COOLING SYSTEM»(ref-186684-S38399049652005083100000) .
3. Remove the accessory drive belt. Refer to DRIVE BELT REPLACEMENT in Engine Mechanical.
4. Raise the vehicle. Support the vehicle. Refer to «LIFTING & JACKING VEHICLE»(ref-189055-S37467658712005090900000) in General Information.
5. Remove the right side lower engine splash shield. Refer to SPLASH SHIELD REPLACEMENT - ENGINE - RIGHT in Body Front End.
6. Remove the left side lower engine splash shield. Refer to SPLASH SHIELD REPLACEMENT - ENGINE - LEFT in Body Front End.
7. Remove the generator. Refer to GENERATOR REPLACEMENT in Engine Electrical.
8. On LV6 engine, remove the water pump pulley.
9. On all engines, remove the following components from the vehicle: The 6 water pump bolts (1, 2) The water pump
10. Remove the O-ring from the vehicle.

Scheme 37

1. Install a new O-ring to the vehicle.
2. Install the water pump to the vehicle. NOTE: Refer to «FASTENER NOTICE»(ref-175132-S17785009232005041500000) in Cautions and Notices.
3. Use 6 bolts (1, 2) in order to secure the water pump. Tighten On LV6 engine, tighten the water pump bolts (1) to 9 N.m (80 lb in). Tighten the water pump bolts (2) to 11 N.m (8 lb ft). On LNK engine, tighten the water pump bolts to 9 N.m (80 lb in).
4. Install the left side lower engine splash shield. Refer to SPLASH SHIELD REPLACEMENT - ENGINE - LEFT in Body Front End.
5. Install the right side lower engine splash shield. Refer to SPLASH SHIELD REPLACEMENT - ENGINE - RIGHT in Body Front End.
6. Lower the vehicle.
7. On LV6 engine, install the water pump pulley. Tighten Tighten the water pump pulley bolts to 15 N.m (11 lb ft).
8. On all engines, install the generator. Refer to GENERATOR REPLACEMENT in Engine Electrical.
9. Install the accessory drive belt. Refer to DRIVE BELT REPLACEMENT in Engine Mechanical. CAUTION: Refer to «BATTERY DISCONNECT CAUTION»(ref-175132-S30614301632005041500000) in Cautions and Notices.
10. Connect the negative battery cable.
11. Use approved engine coolant in order to fill the radiator. Refer to «DRAINING AND FILLING COOLING SYSTEM»(ref-186684-S38399049652005083100000) .
12. Start the engine.
13. Inspect the system for leaks.

Scheme 38

1. Disconnect the negative battery cable.
2. Drain the cooling system. Refer to «DRAINING AND FILLING COOLING SYSTEM»(ref-186684-S38399049652005083100000) .
3. Remove the radiator inlet hose. Refer to «RADIATOR HOSE REPLACEMENT - INLET»(ref-186684-S24417402102005083100000) .
4. Remove the radiator outlet hose. Refer to «RADIATOR HOSE REPLACEMENT - OUTLET»(ref-186684-S04149440462005083100000) .
5. Disconnect transmission oil cooler lines.
6. Disconnect the fan motor electrical connector.
7. Disconnect two fan motor electrical harness clamps from the fan shroud.
8. Remove two radiator fan mount bolts.
9. Remove the radiator fan with the motor
10. Transfer all necessary components onto the replacement radiator.

Note. Refer to FASTENER NOTICE in Cautions and Notices.

Scheme 39

1. Position the radiator fan with the motor. Tighten Tighten the radiator bolts to 13 N.m (9 lb ft).
2. Connect two fan motor electrical harness clamps to the fan shroud.
3. Connect the fan motor electrical connector.
4. Connect the transmission oil cooler lines.
5. Install the radiator outlet hose. Refer to «RADIATOR HOSE REPLACEMENT - OUTLET»(ref-186684-S04149440462005083100000)
6. Install the radiator inlet hose. Refer to «RADIATOR HOSE REPLACEMENT - INLET»(ref-186684-S24417402102005083100000)
7. Refill the cooling system. Refer to «DRAINING AND FILLING COOLING SYSTEM»(ref-186684-S38399049652005083100000) . CAUTION: Refer to «BATTERY DISCONNECT CAUTION»(ref-175132-S30614301632005041500000) in Cautions and Notices.
8. Connect the negative battery cable. IMPORTANT: Watch for a potential overheating condition while the engine is operating with the radiator cap off.
9. Start and run the engine until the coolant is at operating temperature.
10. Inspect the transmission fluid level, on vehicles with automatic transmission. Refer to in Automatic Transmission.
11. Tighten any loose connections as necessary.

The cooling system's function is to maintain an efficient engine operating temperature during all engine speeds and operating conditions. The cooling system is designed to remove approximately one-third of the heat produced by the burning of the air-fuel mixture. When the engine is cold, the coolant does not flow to the radiator until the thermostat opens. This allows the engine to warm quickly.