Buick Regal: Thermostat Bypass Hose Replacement (2.0L LTG)
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Preliminary Procedures
1. Drain the cooling system.
2. Radiator Inlet Hose @ Water Outlet - Remove.
- Thermostat Bypass Hose Clamp [2x]
Procedure
Hose Clamp Replacement Guidelines - Spring Type
- Thermostat Bypass Hose
Procedure
1. Radiator Inlet Hose @ Water Outlet - Install.
2. Fill the cooling system. 3. Check the cooling system for leaks.
WATER PUMP INLET PIPE REPLACEMENT (3.6L LGX)
Removal Procedure
1. Drain the cooling system.
2. Generator - Remove.
3.
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Radiator Outlet Hose Clamp (1) - Disconnect.
4. Radiator Outlet Hose (2) @ Water Pump Inlet Pipe - Remove.
5. Water Pump Inlet Pipe Bolt (3) - Remove.
6.
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Water Pump Inlet Pipe Bolt (1) - Remove [2x].
7. Water Pump Inlet Pipe (2) - Remove.
8. Water Pump Inlet Pipe Seal (3) - Remove and DISCARD.
Installation Procedure
1.
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Water Pump Inlet Pipe Seal (3) - Install NEW.
2. Water Pump Inlet Pipe (2) - Install.
CAUTION: Refer to Fastener Caution.
3. Water Pump Inlet Pipe Bolt (1) - Install and tighten [2x] 15 N.m (11 lb ft).
4.
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Water Pump Inlet Pipe Bolt (3) - Install and tighten15 N.m (11 lb ft).
5. Radiator Outlet Hose (2) @ Water Pump Inlet Pipe - Install.
6. Radiator Outlet Hose Clamp (1) - Connect.
7. Generator - Install.
8. Fill the cooling system.
9. Start the engine and check for leaks.
ENGINE COOLANT THERMOSTAT HOUSING REPLACEMENT (2.0L LTG)
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Preliminary Procedure
Radiator Outlet Hose Replacement (2.0L LTG) or Radiator Outlet Hose Replacement (3.6L LGX without Engine Oil Cooler) or Radiator Outlet Hose Replacement (3.6L LGX with Engine Oil Cooler).
- Engine Coolant Thermostat Housing Bolt [2x]
CAUTION: Refer to Fastener Caution.
Tighten 10 N.m (89 lb in)
- Engine Coolant Thermostat Housing
Procedure
Install a NEW engine coolant thermostat housing seal.
ENGINE COOLANT THERMOSTAT HOUSING REPLACEMENT (3.6L LGX)
Removal Procedure
1. Drain the cooling system.
2.
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Fuel Injection Fuel Rail Noise Shield (1) - Remove.
3.
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Engine Coolant Air Bleed Pipe (1) - Remove.
4. Engine Rear Noise Shield - Remove.
5.
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Engine Coolant Thermostat Housing Inlet Pipe Bolt (1) - Remove.
6.
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Using a suitable flat bladed tool as shown, separate the engine coolant thermostat housing inlet pipe from the thermostat housing.
7.
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Engine Coolant Thermostat Housing Bolt (1) - Remove [2x].
8. Engine Coolant Thermostat Housing (2) - Remove.
9. Engine Coolant Thermostat Housing Seal (3) - Remove and DISCARD.
10.
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Engine Coolant Thermostat Housing Inlet Pipe O-ring Seal (1) - Remove and DISCARD.
Installation Procedure
1.
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Engine Coolant Thermostat Housing Inlet Pipe O-ring Seal (1) - Install NEW.
2.
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Engine Coolant Thermostat Housing Seal (3) - Install NEW.
3. Engine Coolant Thermostat Housing (2) - Install.
CAUTION: Refer to Fastener Caution.
4. Engine Coolant Thermostat Housing Bolt (1) - Install and tighten [2x] 10 N.m (89 lb in).
5.
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Insert the engine coolant thermostat housing inlet pipe (1) to the thermostat housing.
6.
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Engine Coolant Thermostat Housing Inlet Pipe Bolt (1) - Install and tighten 10 N.m (89 lb in).
7.
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Engine Coolant Air Bleed Pipe (1) - Install.
8. Engine Rear Noise Shield - Install.
9.
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Fuel Injection Fuel Rail Noise Shield (1) - Install.
10. Fill the cooling system.
11. Start the engine and check for leaks.
READ NEXT:
Engine Coolant Thermostat Housing Inlet Pipe Replacement (3.6L LGX)
Removal Procedure
1. Drain the cooling system.
2. Engine Rear Noise Shield - Remove.
3.
Radiator Inlet Hose Clamp (1) - Disengage.
4. Radiator Inlet Hose (2) - Disconnect.
5. Engine Coolant Therm
Water Pump Pulley Replacement (3.6L LGX)
Preliminary Procedure
Drive Belt Replacement.
Water Pump Pulley Bolt [4x]
CAUTION: Refer to Fastener Caution.
Tighten
10 N.m (89 lb in)
Water Pump Pulley
Procedure
1. Install the EN-461
Auxiliary Water Pump Replacement (FWD)
Removal Procedure
1. Drain the cooling system.
2.
Steering Gear Heat Shield (2) - Remove.
3.
Heater Outlet Hose Clamp (1) - Disengage.
4. Heater Outlet Hose (2) @ Auxiliary Water Pump - Remove.
SEE MORE:
Wiper Blade Replacement
Front Wiper Blade
Replacement
Windshield wiper blades should be
inspected for wear or cracking.
It is a good idea to clean the wiper
blade assembly on a regular basis.
When worn, or when cleaning is
ineffective, replace the wiper blade.
Caution:
Allowing the wiper arm to touch
the windshield when
Lane Keep Assist (LKA)
If equipped, LKA may help avoid
crashes due to unintentional lane
departures. It may assist by gently
turning the steering wheel if the
vehicle approaches a detected lane
marking without using a turn signal
in that direction. It may also provide
a Lane Departure Warning (LDW)
system alert as the lan
