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Help please im confused airlock maybe.
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Old 14 Dec 2010, 11:07 PM   #1 (permalink)
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Help please im confused airlock maybe.

Hi all pretty stuck and confused now, I just got a new header tank cap.

The thing is is that the bottom hose on the radiator does not warm up and feels a little hard and a little coolant seeps out from the the edges of the hose after a drive. The top hose is hot and feels really solid.

Im not too sure what else I can do can someone help please.

Im thinking airlock but can a new cap cause this? I checked the hoses on saturday the last time I drove it and both hoses were warm.

Also the new cap I bought is a 1.1 cap is this the right one for a 99sti.

Sorry for the essay.
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Old 17 Dec 2010, 06:49 PM   #2 (permalink)
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Re: Help please im confused airlock maybe.

ya 1.1 is right I upgraded mine to 1.3 why did you change the original cap? did you drain any coolant? or any leaks anyway?
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Old 17 Dec 2010, 11:48 PM   #3 (permalink)
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Re: Help please im confused airlock maybe.

Not sure why I changed the cap. I had to change the radiator hoses as one of them split so decided to change the cap as well, I topped up some coolant at the time but not much only a few ml I guess.
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Old 17 Dec 2010, 11:57 PM   #4 (permalink)
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Re: Help please im confused airlock maybe.

which hose did you replace? also could it have anything to do with your thermostat?? not sure bout 99sti but on my92 wrx the bottom hose goes into my stat housing????? just a thought?!
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Old 19 Dec 2010, 06:51 PM   #5 (permalink)
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Re: Help please im confused airlock maybe.

Must be an airlock bleed the system and should sort it out for ya
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Old 19 Dec 2010, 07:13 PM   #6 (permalink)
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Re: Help please im confused airlock maybe.

Thanks for the replies bled the system and car runs fine now.
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