Car cooling system Chevrolet Tahoe 2 and 3

Checking the tightness of the cooling system
Caution: To avoid burns, do not remove the radiator or expansion tank cap while the engine is hot. 1. Remove the expansion tank cap. 2. Check the expansion...

Expansion tank cap check
Caution: To avoid burns, do not remove the radiator or expansion tank cap while the engine is hot. 1. Remove the radiator cap. 2. Rinse the sealing surface of...

Expansion tank — removal and installation
Preliminary Operations Drain the cooling system. Remove the air filter housing. Removal and installation 1. (Modifications) Disconnect the low coolant sensor...

Expansion tank hose
Withdrawal 1. Drain the cooling system. 2. Remove the expansion tank hose clamp on the radiator side. 3. Remove an inlet hose from a branch pipe of a radiator....

Upper Radiator Hose
Preliminary Operations Drain the cooling system. Remove the air filter outlet duct. Removal and installation 1. Release the radiator ventilation hose from the...

Lower Radiator Hose
Preliminary Operations Drain the cooling system. Remove the air filter outlet duct. Remove the air filter housing. Removal and installation 1. Remove the lower...

Radiator Vent Hose
Preliminary Operations Drain the cooling system. If necessary, remove the resonator air duct (intake silencer) air filter. Removal and installation 1. Remove...

Quick connector of tubes and hoses of the engine oil cooler
Withdrawal 1. Disconnect the plastic covers from the quick connector. Pull the caps back along the tube. 2. Using a hook, pull out one of the open ends of the...

Pipes and hoses of the engine oil cooler
Withdrawal The engine oil cooler is either an integral part of the radiator or a separate unit installed in front of the radiator. 1. Disconnect the...

Mechanical fan — removal and installation
Withdrawal 1. Remove the top fan diffuser. 2. Install the holder on the fan clutch. 3. Loosen the nut securing the fan hub to the water pump by turning it...

Electric fan — removal and installation
Withdrawal 1. Remove fan diffuser together with fans, see below. 2. Remove the fan blade retainers. 3. Remove fan blades. 4. If necessary turn away bolts of...

Electric fan diffuser
Withdrawal 1. Disconnect the upper radiator hose support clips from the fan diffuser. 1 - upper hose, 2 - inlet hose clip, 3 - inlet hose, 4 - clamp, 5 - tube,...

Top diffuser mechanical fan
Withdrawal 1. Loosen the air filter outlet duct clamps at the throttle body. Tightening torque 4 Nm. 2. Loosen the clamps on the air filter outlet duct at the...

Lower mechanical fan diffuser
Withdrawal 1. Remove the radiator fan. 2. If an engine oil cooler is installed, remove the cooler hose support clip from the lower diffuser. 3. Lift the bottom...

Cooling fan connectors
1 - left side fan, 2 - right side fan, 3 - headlight wire harness Fan Connector Terminal assignment: Left side fan: terminal A - wire color yellow (YE) - power...

Thermostat housing and thermostat
Withdrawal Note: On older engines, the thermostat is not serviced separately and must be replaced along with the coolant pump hose. 1. Drain the cooling...

Coolant pump
Withdrawal 1. Remove the air cleaner outlet duct. 2. Drain the cooling system. 3. Remove the ventilation hose clamp (1) at the vent tube fitting. 4. Remove the...

Radiator — removal and installation
Preliminary Operations Drain the cooling system. Disconnect all hoses from the radiator. Remove the radiator fan and its diffuser. Disconnect the engine oil...

Upper radiator deflector
Withdrawal 1. Remove the clips (1) upper radiator deflector. 2. Remove the top deflector (2). Cadillac model Yukon Model Installation 3. Installation is...

Coolant heater
Withdrawal 1. Completely drain the cooling system. 2. Raise the car and move the safety stands under the frame. 3. (LC9/L76/L92 engines and 1500 series...

Coolant Heater Wires
Withdrawal 1. Raise the vehicle and slide the safety struts under the frame. 2. (LY6 engine 2500 series) unscrew the two front bolts securing the oil pan...

Air vent pipe from the cooling system
Withdrawal 1. If the rear air bleed pipe is removed, remove the intake manifold, see chapter " Engine - mechanical part ". 2. Remove the air filter outlet...

Air discharge hose from the cooling system
Withdrawal 1. If necessary, remove the engine cover. 2. Remove the hose clamp (1) on the throttle body fitting. 3. Remove the hose from the fitting. 4. Remove...