Car cooling system Chevrolet Tahoe 2 and 3

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

Checking the expansion tank cap
Caution: To avoid burns, do not remove the radiator cap or expansion tank 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 level...

Expansion tank hose
Removal 1. Drain the cooling system. 2. Remove the expansion tank hose clamp on the radiator side. 3. Remove the inlet hose from the radiator pipe. 4. Remove...

Upper radiator hose
Preliminary operations Drain the cooling system. Remove the air cleaner 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 cleaner outlet duct. Remove the air filter housing. Removal and installation 1. Remove the...

Radiator Ventilation Hose
Preliminary operations Drain the cooling system. If necessary, remove the resonator air duct (intake noise muffler) air filter. Removal and installation 1....

Quick Connector for Engine Oil Cooler Tubes and Hoses
Removal 1. Disconnect the plastic caps from the quick connector. Pull the caps back along the tube. 2. Using the hook, pull out one of the open ends of the...

Engine Oil Cooler Tubes and Hoses
Removal 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 cooler tube...

Mechanical Fan — Removal and Installation
Removal 1. Remove the upper fan diffuser. 2. Install the holder onto the fan coupling. 3. Loosen the fan hub fastening nut to the water pump by turning it...

Electric Fan — Removal and Installation
Removal 1. Remove the fan diffuser together with the fans, see below. 2. Remove the fan blade retainers. 3. Remove the fan blades. 4. If necessary, unscrew the...

Electric Fan Diffuser
Removal 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 - branch...

Upper diffuser of mechanical fan
Removal 1. Loosen the air cleaner outlet duct clamps at the throttle body. Tightening torque 4 N·m. 2. Loosen the air filter outlet duct clamps at the mass air...

Lower diffuser of mechanical fan
Removal 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 lower fan...

Cooling system fan connectors
1 - left side fan, 2 - right side fan, 3 - headlight wire harness Fan connector Purpose of terminals: Left side fan: terminal A - wire color yellow (YE) -...

Thermostat housing and thermostat
Removal Note: On early engine models, the thermostat is not serviceable separately and must be replaced along with the coolant pump hose. 1. Drain the cooling...

Coolant pump
Removal 1. Remove the air filter outlet duct. 2. Drain the cooling system. 3. Remove the vent hose clamp (1) at the air bleed tube fitting. 4. Remove the vent...

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
Removal 1. Remove the fasteners (1) from the upper radiator deflector. 2. Remove the upper deflector (2). Cadillac model Yukon Model Installation 3....

Coolant preheater
Removal 1. Completely drain the cooling system. 2. Raise the vehicle and place safety posts under the frame. 3. (LC9/L76/L92 engines and LMG/LY5/LY6 1500...

Coolant heater wires
Removal 1. Raise the vehicle and place safety posts under the frame. 2. (LY6 2500 Series Engine) unscrew the two front bolts securing the oil pan guard, loosen...

Cooling system air bleed tube
Removal 1. If the rear air bleed tube is removed, remove the intake manifold, see chapter " Engine - mechanical part ". 2. Remove the air filter outlet duct....

Cooling system air bleed hose
Removal 1. Remove the engine cover if necessary. 2. Remove the hose clamp (1) on the throttle body fitting. 3. Remove the hose from the fitting. 4. Remove the...

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Tahoe 2 and 3 (2000-2014)