GM 89018624 Radiator Assembly

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Modern cars are now using spring type radiator hose clamps which should only be re-used if the hose connection is clean and dry. Any painted or coated connections must be scraped down to bare metal. These clamps should not be used with aftermarket hoses, instead they need conventional worm drive type clamps. Disconnect the negative cable from the battery to start removing the radiator, and then remove all hoses and lines connected to it including overflow line, heater core hoses, upper and lower radiator hoses, transmission cooler lines if equipped. Use a flare nut wrench to remove the transmission cooling lines after plugging them at both ends against dirt or leaks that may enter into system. Unfasten oil cooler lines on opposite side of radiator when applicable. Remove fan shroud by unbolting center and upper mounting screws; lift out radiator from engine compartment taking care not to touch blades of fan. Also take off bracketing for radiators as well where available. Replace any damaged hose clamps or radiator hoses prior to fitting of new radia- tor. The bottom saddles of the radiator should securely seat while its core is undisturbed by top brackets during installation process at times requires checking for levels of dipstick first engine oil as well as ATF afterwards till completion.

The fan shroud can be removed by unbolting and removing the center and upper mounting screws.