GM 84368363 Tank Assembly, Rad Surge

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Begin by disconnecting the battery, cable from the negative terminal, and then remove the 4.3L V6, 5.3L and 6.2L V8 engines. Next, drain the coolant and take off the plastic cover that goes over the radiator support. Thereafter, detach the cooling fan shroud and loosen the surge tank hose at both radiator and surge tank. Also, separate and draw away the upper radiator hose together with headlight housings. Now remove condenser upper mounting bolts as well as bracket retaining nut from radiator followed by upper radiator support.Unfasten and separate radiator air baffle while removing radiator mounting bolts.In order to avoid separating of condenser lines lift condenser carefully above radiators by depressing condenser retention tabs.Tilt also pull down on lower baffle towards bottom of running away rad into inwardly inclined direction.Respectively, disconnect all connections you find between engine oil cooler lines as well as transmission cooler lines taking care not to forget about unclipping lower section of fan shroud when doing this.Finally remove these mounting bolts after which you can lift out rad through engine compartment.Do not replace damaged hoses or clamps but tighten fasteners until they reach their torque specifications.Securely position rad in its lower saddles; ensure secure attachment of upper brackets.Connect each cooler line onto quick connect fitting before reconnecting reservoir hose coupling.Slide back any plastic collars onto quick connect fittings so that they are retained within them.The cooling system has to be refilled once again after finishing its installation; finally top up your engine oil level beside checking automatic transmission fluid level.By unscrewing fasteners holding coolant reservoir onto its place then place it into bucket for emptying.Put down an air filter assembly such that a coolness inside may be reached.Once all coolant hoses have been removed detach them promptly.Place it gently on floor while loosening nuts securing.Clean up device especially its indoor spaces before reinstalling that reservoir.Quickly reconnect it by doing everything in opposite direction, filling entire cooling system with water and finally making sure no any loose end is left behind.

To remove the radiator, first disconnect the battery cable and drain the cooling system. Remove the radiator support cover, upper radiator hose, coolant air bleed pipe, lower radiator hose, and transmission cooler lines. Then, remove the engine cooling fans and mounting bolts, then lift the radiator. Before installation, replace damaged radiator hoses and hose clamps. To remove the coolant reservoir, remove the air filter housing and detach the coolant hoses from the reservoir. Unscrew the mounting fasteners and remove the reservoir. Before installation, make sure the reservoir is clean and free of debris. Installation is the reverse of the removal. Finally, refill the cooling system and check for leaks.

Before installing the coolant expansion tank, ensure that the tank is clean and free of debris.

Before taking out the radiator, you need to remove the radiator support cover, upper radiator hose, coolant air bleed pipe, lower radiator hose, and transmission cooler lines. If there is an external engine oil cooler, you also need to disconnect the engine oil cooler lines. Additionally, the engine cooling fans and mounting bolts should be removed.

To remove the coolant expansion tank, start by disconnecting the battery cable and draining the cooling system. Then, remove the air filter housing and detach the coolant hoses from the expansion tank. Unscrew the mounting fasteners and remove the expansion tank.

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