| Water pump pressure relief vavle?

Water pump pressure relief vavle?

lisa m asked:


1996 Eagle Vision tsi,has a small coolant leak,was told it iso.k. due to a water pump pressure release valve?has anyone heard of this on an auto?I thought they were only in hot water tanks at home.

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Comments

7 Responses to “Water pump pressure relief vavle?”

  1. Scorpion on March 31st, 2009 7:01 pm

    I have never heard of a water pressure relief valve on a motor.

  2. chevyss396427 on April 3rd, 2009 4:50 am

    not on a water pump, your radiator car, which is part of the cooling system has a pressure release cap. That could be what you are referring to

  3. loonatic72 on April 6th, 2009 7:16 am

    I’ve never hear of any such thing on a car. What they might be saying it’s leaking from teh weep hole on the water pump

  4. GSXRRider on April 7th, 2009 3:33 pm

    Your friend is full of it. There is no water pumper pressure release valve.

    When the preasure is high the radiator cap spring compresses and allows water back into the overflow.

  5. lyndseydawn11 on April 10th, 2009 12:46 pm

    No there is not a pressure release valve on a vehicle water pump. There is however a weap hole, which is where it leaks from when your water pump goes “bad”. The pressure release on the cooling system is through the radiator cap.

  6. Keith M on April 11th, 2009 2:39 pm

    Your pressure relief is built into the radiator cap and is usually caught in the reservoir. It sounds like you might be referring to a small weep hole on the water pump itself which if leaking is usually an indication the seal is failing and might be an early indication of the water pump failing.

  7. Country Boy on April 13th, 2009 4:00 pm

    This is a new one to me! All water pumps have a weep hole in front of the water pump bearing to alert mechanics and owners the water pump needs replacing. The pressure inside a cooling system is controlled by the pressure cap on the radiator or coolant recovery tank. Many cars have the pressure cap now directly on the reserve coolant recovery tank. Ford is an example. As pressure builds when the coolant gets hot the relief spring inside the radiator cap allows coolant to pass to the coolant recovery tank @ atmospheric pressure if the pressure cap is located directly on the radiator.
    As coolant cools a small plunger in the center of the radiator cap opens and coolant returns to the motor and radiator. The whole idea is to completely eliminate air bubbles inside the cooling system.

    I’d have to actually see this in a Chrysler shop manual as you could be loosing coolant and have no idea where or why. What you’re explaining to us doesn’t make a whole lot of sense.

    Someone is whistling “sweet nothings” in your ear.