if it pumps coolant it pumps coolant. The outlet is the bottom hose.
1)thermostat: candy thermoter in pan of water on stove
2)waterpump: see if coolant pumps out the outlet hose
3)fan operation: see if the fans come on when the engine is hot
4)take it to get block tested: they will put pressure to the cooling system and see if it leeks down. If it does they will probably look to see which cyllinder it is leeking into. Alternatively or additionally they will check the coolant for exhaust gasses.
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Originally Posted by SVXMAN2001
two questions....
1) Tom, Can i view the water pump without taking all the accessory belts off?
2) Mike, is the heater outlet hose the bottom hose connecting the waterpump/thermostat to the radiator? There are only two so i am assuming the bottom is the outlet and the top is in the inlet?
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