What causes my top radiator hose to be like this...

[S14K]

every morning when i wake up the top radiator hose looks like this. what could i do to solve this problem

[R.W.240]

First off - get new hoses. they're cheap as shit and its something you dont want breaking far from home.

Its prolly your radiator cap. letting the fluid out when hot but not back in when cold - creates a vacuum - hoses suck in.

[Waltz]

in case S14K has any doubt , r.w.240 is right on the mark with this answer .
And spend a few extra bucks to get some reinforced hoses , then leave them be for a long LONG while.
Best of luck

[S14K]

does all the hoses have to be replaced? cuz ive already replaced the top one and it still does the same

[240SXSlideStar]

Just because it's new doesn't make it good quality.

[monooxide]

Somethign to do with overflow tank...maybe....or Air in the lines..because Air rirses and since thats the highest part on a coolant system. maybe when the coolant cools down the coolant is changing in density and causing a vacuum on the Air bubbles.

[R.W.240]

Originally Posted by R.W.240

First off - get new hoses. they're cheap as shit and its something you dont want breaking far from home.

Its prolly your radiator cap. letting the fluid out when hot but not back in when cold - creates a vacuum - hoses suck in.

Do your Radiator Cap... I have a feeling its whats gumming up the works.

[slideways...]

replace the radiator cap first, then get back to us