How to Bleed Coolant

Discussion in 'Troubleshooting & Diagnosis' started by motor60, Nov 18, 2011.

  1. maxpsi

    maxpsi Veteran Member

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    I've got one. I don't think my water pump is working properly. The thermostat is opening and the coolant temp is right at 165, but the lower radiator hose is cold and I see no water circulating through the radiator. If I grip the lower hose, I can feel a rhythmic thud. Maybe it's coming from the impeller?
     
  2. global warmer

    global warmer Veteran Member

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    I was always told to put the fan on high heat all the way up run the car with the cap off until it comes up to temp
     
  3. COPO

    COPO Veteran Member Lifetime Gold Member

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    Amazon prices vary.

    Advance Auto
     
  4. Gary S

    Gary S Administrator Lifetime Gold Member

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    Is the need to bleed coolant really a problem?

    I've always filled the engine and run it until the thermostat opens and I can feel the upper hose warm and flowing with the radiator cap off.
    Then, I shut the engine off and top off the radiator, cap it, and I'm done.
    This has always worked for me with no problems with air in the system.
     
  5. CorkyE

    CorkyE Veteran Member Lifetime Gold Member

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    No kidding. Sounds like we need a SOP written on how to burp a SBC... :confused:
     
  6. Kamikaze

    Kamikaze Veteran Member Lifetime Gold Member

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    Yes! There is and I have one. Its from Snap On and requires compressed air. It was designed for newer cars where the radiator or filler neck is actually lower than the highest point of the cooling system. Hondas and Toyotas are mostly like these.

    I have not seen if anyone has copied this at a cheaper price yet...
     
  7. Joekool

    Joekool Veteran Member

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    SBC are easy to burp, BBC can be a pain, the bypass BBC's have on top of the water pump can trap air and even with an open t-stat you might not get all the air out the first or 2nd attempts.
     

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