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1998 Honda Accord upper radiator hose drawn in 126K

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  • October 26, 2019 at 9:16 pm #895146
    Robert MiltenbergerRobert Miltenberger
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      My car is not overheating, overflow tank is on the mark. With the engine cold, I noticed the upper radiator hose is drawn in a bit – about halfway in. If I remove the radiator cap I can hear it suck in and the hose returns to normal shape. The fluid is low maybe half a cup. I have noticed this twice maybe a week apart when I regularly check under the hood. Please advise?

      Thanks,

      Milty

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    • October 26, 2019 at 9:22 pm #895147
      Nightflyr *Richard Kirshy
      Participant

        Might check your radiator cap.

        October 28, 2019 at 3:51 am #895156
        Robert MiltenbergerRobert Miltenberger
        Participant

          I replaced the radiator cap today – I’ll keep an eye on the hose. Could you explain how the cap can cause the issue I am having?

          Thanks,

          Milty

          October 28, 2019 at 8:01 am #895159
          Billy AndrewsBilly
          Participant

            First – did you get an OEM cap? Aftermarket caps can cause problems.
            The cap lets coolant and air out as the system heats up, and draws coolant back in as the system cools. If it does not let coolant back in as the system cools, you can get a relative vacuum that might collapse the hose.

            October 29, 2019 at 3:15 am #895167
            Robert MiltenbergerRobert Miltenberger
            Participant

              I did not get a OEM cap – whatever AutoZone had – checked hose today not sucked in – I’ll keep an eye on it

              Thank,

              Milty

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