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Bubbles in expansion tank 03 wrx, with Video
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Old 14 Sep 2011, 03:23 PM   #1 (permalink)
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Bubbles in expansion tank 03 wrx, with Video

I have made a video of some small bubbles in my expansion tank, does anyone think this is anything to worry about or just normal? probably just me being paranoid

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Old 14 Sep 2011, 06:04 PM   #2 (permalink)
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Re: Bubbles in expansion tank 03 wrx, with Video

Had the exact same problem in my sti version 6 RA was the coolant changed lately at all? or any hoses disconnected prob still a bit of air in the system was paranoid with mine when it done this but gave it a sniff test to check for exhaust gases in coolant from a head gasket be blown and gave it a compression test but all was perfect since I changed the rad renewed the coolant and purged all the air out the manual says to leave rad cap on so thats where I went wrong and had some air in it last time I renewed coolant, bleed the air out when the engine completely cold open rad cap turn the heaters on full to hot and windscreen that way the coolant running through the heater core and run engine while rad cap off, engine coolant might overflow a bit so have rags then squezze the top and bottom hoses watching hands if fans come up about 15 mins car be up to temp and system should be bled from air put the rad cap back on then, after that then if still the same might be worth doing a sniff test cheap kit here Block Tester | Frost Auto Restoration Techniques but sure its nothing
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Last edited by stiimpreza1984; 14 Sep 2011 at 06:21 PM.
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Old 14 Sep 2011, 06:18 PM   #3 (permalink)
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Re: Bubbles in expansion tank 03 wrx, with Video

Bubbles in Coolant found the old thread to my problem
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