Upper radatior hose

1458 Views 6 Replies 6 Participants Last post by Killerbee, Jun 16, 2008

diesel freak 123

Discussion Starter · Apr 7, 2007

Have anyone ever noticed if their upper radiator hose collapses after the engine has been shutoff for about 5 hours? Well I noticed mine does but ,when I crack open the coolant tank cap it relieves the vacume on the hose is this normal??? 2004 Chevy LB7 bone stock..

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baddmax

· #2 · Apr 7, 2007

i noticed mine done the same thing the other day. I was getting ready to ask the same question

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diesel freak 123

Discussion Starter · #3 · Apr 8, 2007

Well from what I have heard from other message boards is change out the coolant cap . So thats what I'll try.

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haunruh

· #4 · Apr 9, 2007

diesel freak 123 said:
Well from what I have heard from other message boards is change out the coolant cap . So thats what I'll try.

Yes, good idea. There should not be any vacuum in the cooling system. It should suck in coolant from the tank as it cools down.

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BigDumbDually

· #5 · Jun 15, 2008

i cleaned mine with brake cleaner and now it works fine..

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daddysLBZ

· #6 · Jun 16, 2008

Clean ing them out helps make them last..

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Killerbee

· #7 · Jun 16, 2008

BigDumbDually said:
i cleaned mine with brake cleaner and now it works fine..

the problem usually returns. I have an autozone cap for 2 years now.

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