1998 Honda Accord upper radiator hose drawn in 126K

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3 weeks 2 days ago #203655 by milty60
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

1998 Honda Accord LX 2.3 4cyl 103K

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3 weeks 2 days ago #203656 by nightflyr
Might check your radiator cap.

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3 weeks 20 hours ago #203665 by milty60
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

1998 Honda Accord LX 2.3 4cyl 103K

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3 weeks 16 hours ago #203668 by relative4
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.

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2 weeks 6 days ago #203676 by milty60
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

1998 Honda Accord LX 2.3 4cyl 103K

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