Stacit Posted June 20, 2011 Share Posted June 20, 2011 I just bought a 2006 Legacy and noticed that the radiator hose collapses when the engine is cool. It has not overheated, but I'm not sure if this is normal or not, any suggestions? Link to comment Share on other sites More sharing options...
LongHiway Posted June 20, 2011 Share Posted June 20, 2011 Replace the hose, maybe check to see if the overflow container is all clogged up. Link to comment Share on other sites More sharing options...
GTTuner Posted June 20, 2011 Share Posted June 20, 2011 Replace the cap. Link to comment Share on other sites More sharing options...
Drift Motion Posted June 20, 2011 Share Posted June 20, 2011 definitely not normal it's leaking somewhere cap, radiator, hose, overflow tank etc Link to comment Share on other sites More sharing options...
PartyRock Posted June 22, 2011 Share Posted June 22, 2011 this happened to my GT before i drained and refilled the coolant. it does not collapse any more and it does pull fluid from the overflow tank. I suspect that when the engine and system is cold, things contract causing vaccum in the system- this vaccum should be pulling fluid from the overflow tank and into the system to fill all the voids. atleast this is what mine is doing.... my coolant temps while logging and doing WOT pulls, in 85+ degree weather..the temps never get above 205-207. Link to comment Share on other sites More sharing options...
BAC5.2 Posted June 22, 2011 Share Posted June 22, 2011 Bleed air out of the system and test the caps. [URL="http://legacygt.com/forums/showthread.php/proper-flip-key-interesti-159894.html"]Flip Key Development Thread[/URL] "Genius may have its limitations, but stupidity is not thus handicapped." - E. Hubbard Link to comment Share on other sites More sharing options...
lordchilly Posted June 22, 2011 Share Posted June 22, 2011 Mine does that. I keep on burping it for the next few days. How do you test the caps? Link to comment Share on other sites More sharing options...
PartyRock Posted June 22, 2011 Share Posted June 22, 2011 Mine does that. I keep on burping it for the next few days. How do you test the caps? make sure the spring springs and make sure the rubber seal is there and in good condition Link to comment Share on other sites More sharing options...
shadowsports Posted June 22, 2011 Share Posted June 22, 2011 My '08 did this as well. I posted some shots here and was told not to worry about it. That was 67k and two coolant flushes ago. Never replaced or tested my caps. Never saw it after the first 2-3k in the clock. Upper hose looks completely flat so I understand the concern. Link to comment Share on other sites More sharing options...
lunarx Posted August 6, 2017 Share Posted August 6, 2017 Apologies for reviving an old thread, but these posts have been very helpful to me. My upper & lower radiator hoses were also collapsing on a 07 LGT. When I finally noticed that the reservoir overflowed, following a top-off, I decided to search the forums. Turns out I had (2) suction caps. An aftermarket 16psi on the Surge Tank and a factory 108kpa on the radiator. After much confusion (at Subaru Parts Counter) I found out; Surge Tank should have a 108kpa [16psi] suction cap. Radiator should have a 137kpa [20lb] pressure-only cap. Not sure either cap was defective but having (2) identical caps was obviously bad. Installed new factory caps of each and all is good. Hoping this info is helpful to someone else. Link to comment Share on other sites More sharing options...
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