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Radiator Hose is Swelling up-???

This is a discussion on Radiator Hose is Swelling up-??? within the General Help forums, part of the LSx Technical Help Section category; So I hear no boiling over sounds,,and I dont show a high temp indication on my gauges,, But damn it,,I ...

  1. #1
    TerribleTed TerribleTed's Avatar
    Join Date
    Jan 2010

    2000 Chevy Camaro Z28

    Radiator Hose is Swelling up-???

    So I hear no boiling over sounds,,and I dont show a high temp indication on my gauges,,
    But damn it,,I drive it a few miles,,,came home,,popped the hood for an oil change out,,and noticed that the uper radiator hose (the one that has the PS cooler in it) was swelling around where the clamp goes,,
    I was able to open my radiator cap and it did not explode h20 out,,just some pressure release happened,,,

    So what might cause this,,
    The hose just being old,,which it has no signs of that (no cracks or bad color),,
    or is it the t-stat,,,

    Any ideas,,,


  2. #2
    Blown, Stroked, & Sprayed

    Ed Blown Vert's Avatar
    Join Date
    Aug 1999
    San Diego, Ca

    383 Procharged & N20 Vert

    Could be the hose or the cap.

  3. #3
    Junior Member
    Join Date
    Sep 2006

    red black

    Maybe a 10yr old hose....., might not look bad. But do you want to wait for failure to change. The swelling is a heads up. I would change it and cap also if it has not been done. You could pressure test it but changing those items is what I would recommend.

  4. #4
    Life in the Fast lane sunsetorangess's Avatar
    Join Date
    Aug 2005
    Bragg NC

    Met. Sunset Orange
    01 SS

    If the hose is soft its time to replace, chances are its your rad cap causes the boiling over
    2001 SS, Its not the car its the Driver that matters....

  5. #5
    Member bberretta's Avatar
    Join Date
    Aug 2009
    Memphis, TN

    Bright Red
    2000 TA Firehawk 0041/742

    Look at the end of the hose- are the cloth threads in there wet or stained with antifreeze?

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