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1993 Mercedes-Benz 190E Question: in the coolant pump, there is a run-off hose that continually drips coolant.why?

 

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gopats74, 2.3L 4 Cylinder, Quantico, VA, April 25, 2012, 10:29
 Rookie

in the coolant pump, there is a run-off hose that continually drips coolant.why?
is there a problem with my thermostat? i recently changed the thermostat-housing because of a crack. do i need a gasket in there too for a vacuum seal or something? HELP

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  • Answer #1

    Greg's Orange Auto (13656 Answers) , Orange, CA - (714) 361-9386
    globalhelper April 25, 2012, 12:37
     Master

    most likely the hose needs to be replaced. all hoses and fittings are under pressure when car is warm

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    gopats74, April 25, 2012, 15:30
     Rookie

    it's an open-end hose...the water-pump drain hose...someone has suggested that there is air in my cooling line? does that make sense?

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    globalhelper, April 25, 2012, 20:51
     Master

    no sounds like the internal seal is bad and the pumpneeds replacing

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    gopats74, April 27, 2012, 09:09
     Rookie

    you were right..pump needs replacing...that hose is there so the coolant doesn't spray all over the alternator

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