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Discussion Starter · #1 ·
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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i noticed mine done the same thing the other day. I was getting ready to ask the same question
 

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Clean ing them out helps make them last..
 
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