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Coolant not being drawn back into the radiator. HELP

This is a discussion on Coolant not being drawn back into the radiator. HELP within the General Help forums, part of the LSx Technical Help Section category; I'm having a problem with my car not drawing the coolant back into the radiator after being pushed into the ...

  1. #1
    Junior Member
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    Navy BLue
    1999 Chevrolet Camaro Z28

    Coolant not being drawn back into the radiator. HELP

    I'm having a problem with my car not drawing the coolant back into the radiator after being pushed into the overflow bottle. Just wondering if anyone knew what was causing this. I took the overflow bottle and coolant line that runs back to the radiator off and cleaned them out. It will warm up just fine, get to 210 degrees and then sit there, once it cools down the low coolant light comes on and I have to take the cap off and pump it back into the radiator. Anyone know what could be causing this??

  2. #2
    Former Mopar Man 2002ssslp's Avatar
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    Silver & Blue
    02 Camaro SS, 04 GTO

    Your waterpump may be on it's way out. They sometimes will lose fins on the inside of the pump. It is a good idea to change your coolant every three years with the factory Dexcool, what have you been using and how often is it changed ?

  3. #3
    Junior Member
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    red black
    98Z28

    How old is the cap? If its old try changing it first.

  4. #4
    Junior Member
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    Navy BLue
    1999 Chevrolet Camaro Z28

    cap is original and i just flushed out the radiator this summer, i pulled the water pump off to replace the gaskets a few weeks ago and the water pump looked fine so i dont think it's going out.

  5. #5
    Junior Member Canadian LS1's Avatar
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    Bright Red
    1998 Camaro Z28

    i second the motion....try a rad cap

  6. #6
    Smiles for 9.5 Years cammed goat's Avatar
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    Phantom Black Metallic
    2004 GTO M6

    If any of your hoses are collapsed while the engine isn't running, then your radiator cap is faulty.

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