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Radiator Hose Collapse

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Old Nov 7, 2017 | 02:19 PM
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Default Radiator Hose Collapse
Just recently noticed that after my 2004 C5 cools down the Top radiator hose collapses almost flat. I did a complete radiator flush. Put on new hoses, top and bottom and new thermostat. Now the new Top hose is doing the same thing. I have never noticed this before, is that normal?
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Old Nov 7, 2017 | 02:23 PM
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You need a new cap for your surge tank.
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Old Nov 7, 2017 | 02:58 PM
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No that is not normal. ^ What he said
Last edited by Chicago1; Nov 7, 2017 at 02:58 PM.
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Old Nov 7, 2017 | 03:17 PM
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Originally Posted by Chicago1
No that is not normal. ^ What he said
My old Cap says 15psi but all the replacement ones I have found online say 18psi. ??
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Old Nov 7, 2017 | 03:25 PM
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18 PSI is just fine it is what they sell now. It will increase your boiling point about 8.7 degrees.
Last edited by BHauber; Nov 7, 2017 at 03:32 PM.
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