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#1
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Upper Radiator Hose Collapse??
I have been noticing that I have to keep filling up my radiator with coolant and my upper radiator hose looks like a drinking straw trying to suck something from one end, while the other end is closed, so the hose collapse onto itself. To get the hose back to orginal shape I open the radiator cap to let the pressure out. Just last year I did a radiator flush and replaced the thermostat along with the upperr and lower hoses. I did not see a leak then. I have not replaced my radiator cap, I think it is orginal, I have read on other postings to replace the cap every couple of years, my SVX is a 1994. Any ideas??? Could it be a leak or the upper hose just weak? I was thinking of buying the WRX STI silicone radiator hoses, with wire reinforcement. I am going to check if the STI has the same diameter as the SVX. But ouch, the STI silicone hose set cost $305.95 per set at 1st subaruparts.com ( Part # ST451624s000 )
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#2
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Before you go buying hoses it sounds like there is a circulation problem. I'm not 100% but it sounds like a t-stat. I'd try a flush and new t-stat first then if you feel it's a hose try these http://www.subaru-svx.net/forum/show...ht=silver+hose
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#3
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Yes, it's definitly not common for the hose to be doing that. Instead of just replacing the hose I would inquire as to what's causing that to happen and where the coolant is going.
If anything the system should have positive pressure.
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David B. SVXipedia @ SVX-IW.COM -- SVX Information Warehouse 2.0 coming...eventually! Ebony 1992 SVX LS-L 5 spd Koni/GC Stebro 187k miles RIP (Rust In Pieces) 1993 SVX 5 spd Koni/GC Stebro Polyurethane bushings still available! |
#4
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Check your exhaust pipe.
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#5
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your radiator cap is venting pressure out like it should but not allowing the coolant pushed out to come back in. Hence creating a vaccum and when you take the cap off, the vaccum is replaced by the air comming in(this is why you keep putting coolant in. Anyway, pick up a new cap and check ur overflow hose to make sure it isn't clogged, that should set u straight
Tom |
#6
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Thanks
Thanks for the advice, I just sent my order thorugh to 1stsubaruparts.com to replace the radiator cap. I actually ordered everything else ( upper & lower radiator hoses, thermostat, and gasket. I might as well do the job right and be thorough. Jason at the parts dept. is very helpfull with every order I have placed since I have been buying from them. I have not found a place yet on the internet that can beat their prices.
www.1stsubaruparts.com 1st Subaru Parts Toll Free at: 866-528-5282 (a.k.a. Auburn Subaru in Auburn, Washington state) |
#7
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let me know if the cap fixes ur problems
Tom |
#8
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Thanks Tomssvx
Well, I got done doing a full cooling flush last night. Like I said I replaced the thermostat, gasket, upper & lower hoses and replaced the radiator cap. Also cleaned the reservoir by spraying water. I ran my car for 45 minutes last night, the upper hose did not collapse. So hopefully this time it won't happen again. Not looking forward to doing a cooling flush on my 2004 Volvo S60 R. Just changing the spark plugs to NGK Irriduim was hard enough!
Well thanks again Tomssvx. |
#9
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You are very welcome I hope all of your troubles have been resolved
Tom |
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