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bleeding air from new-age impreza
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Old 29 Mar 2009, 02:46 PM   #1 (permalink)
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bleeding air from new-age impreza

hi guys,
left (04 wrx) scooby in for 50,000 m service other day which involved timing belt; got her back ok but notice the warm air isn't as warm as previously, although temp guage operating normally; thought before i go hoking about for an old-fashioned bleed nipple, i'd ask if anyone knows where to bleed the air system?
i presume there is a nipple or wee plug somewhere to save me having to remove radiator hose and empty her again...
thanks guys
billy
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Old 29 Mar 2009, 04:03 PM   #2 (permalink)
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Re: bleeding air from new-age impreza

alrite m8 i'd personally take rad cap offand leave to idle for a coupleofmins this should supress any air out if not speak to imprezasti1987

mike
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Old 29 Mar 2009, 05:35 PM   #3 (permalink)
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Re: bleeding air from new-age impreza

thanks mike, i'll do that...
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Old 29 Mar 2009, 06:30 PM   #4 (permalink)
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Re: bleeding air from new-age impreza

Id go with Mike says above but when engine cold open rad cap and squeze the upper rad pipe and bottom pipe while engine running beware of coolant overflow a bit from coolant tank this will purge air to BEWARE of Hands if Fans comes on if that dont get rid of air you will have to drop coolant and fill her up hopefully it wont come to it but if so heres the way to do it go by that and rev it where is high lighted thats the most important thing to get rid of any air in system hope it helps

WARNING:
The radiator is of the pressurized type. Do not
attempt to open the radiator cap immediately
after the engine has been stopped. Wait till engine cold.
1) Lift up the vehicle.
2) Remove the under cover.
3) Place a container under drain pipe.
4) Loosen and remove the drain plug to drain engine
coolant into the container.
5) For quick draining, open the radiator cap.
CAUTION:
Be careful not to spill coolant on the floor.
6) Drain the coolant from reservoir tank.
7) Tighten the radiator drain screw securely after
draining coolant.
8) Slowly pour the prepared coolant from radiator
filler port to neck of filler, then pour into the reservoir
tank up to “FULL” level.
Coolant capacity (fill up to “FULL” level)
Non-turbo AT model:
Approx. 6.9 Litres (7.3 US qt, 6.1 Imp qt)
Non-turbo MT model:
Approx. 7.0 Litres (7.4 US qf, 6.2 Imp qt)
Turbo AT model:
Approx. 7.6 Litres (8.0 US qt, 6.7 Imp qt)
Turbo MT model:
Approx. 7.7 Litres (8.1 US qt, 6.8 Imp qt)
9) Securely install the radiator cap.
10) Run engine for more than five minutes at 2,000
to 3,000 rpm. (Run engine until radiator becomes
hot in order to purge air trapped in cooling system.)

11) Stop the engine and wait until coolant temperature
lowers. Then open the radiator cap to check
coolant level and add coolant up to radiator filler
neck. Next, add coolant into reservoir tank up to
“FULL” level.
12) After adding coolant, securely then install radiator
and reservoir tank caps.
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Last edited by stiimpreza1984; 29 Mar 2009 at 06:49 PM.
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Old 29 Mar 2009, 09:54 PM   #5 (permalink)
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Re: bleeding air from new-age impreza

cheers m8 for that very detailed description; i was hoping for a wee bleed nipple somewhere on the highest part of the system like some other motors, but thought i was just unable to see it..
ah well, i'll get her done in the morning;
thanks again
billy
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Old 30 Mar 2009, 11:18 PM   #6 (permalink)
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Re: bleeding air from new-age impreza

Glad to help let us know how it goes
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