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What is the layout for radiator hoses on a 1990 Chevy Astro van?
Wiki User
∙ 18y ago
one large hose from bottom of radiator to side of water pump. other large hose from thermostat housing to top of radiator. one heater hose from water pump to heater core, I think this one has a Y in it if there is a rear heater other heater hose from heater core to somewhere on top the engine. If there is a rear heater, its return hose goes to a fitting on the radiator.
Wiki User
∙ 18y ago
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