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how does air get into the cooling system?

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Old Apr 14, 2005 | 12:07 PM
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budget's Avatar
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Default how does air get into the cooling system?

if i open my radiator cap to fill it up with some fluids, is air getting in there and making air pockets?
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Old Apr 14, 2005 | 12:16 PM
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Default Re: how does air get into the cooling system? (ratboy)

no, air will rise as the fluid fills the void. Just to make sure you can run the car (not drive, run) with the cap off, heater on and wait till the fan comes on twice.

Or if there is a bleeder valve you can open that to make sure all the air is out.
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Old Apr 14, 2005 | 02:49 PM
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Default Re: how does air get into the cooling system? (Racermech)

on DC integras, the bleed valve is (if you are standing looking at the engine bay from the front of the car with the hood open) on the left side of the cylinder head, closest to you on the head. you can use the to bleed it.
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Old Apr 14, 2005 | 02:54 PM
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Default Re: how does air get into the cooling system? (95lstegman)

Did they move the valve from the DA's?? Cuz my DC does not have a valve, or at least not the same place as the one on my DA
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Old Apr 14, 2005 | 03:36 PM
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Default Re: how does air get into the cooling system? (Racermech)

it's not a valve. it's a screw. a very long one. it's for bleeding while you're filling it up.
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Old Apr 14, 2005 | 03:38 PM
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Default Re: how does air get into the cooling system? (95lstegman)

Where is it located??
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Old Apr 14, 2005 | 03:40 PM
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Default Re: how does air get into the cooling system? (Racermech)

right where i said it was. just keep in mind it's a long bolt. it's not on the head, it's on the housing for the thermostat i believe.
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Old Apr 14, 2005 | 03:46 PM
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Default

no im talking about when i go to fill my radiator up with coolant, by opening the radiator cap did it just add air pockets that i just bled a week ago and do i have to do it again?
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Old Apr 14, 2005 | 03:51 PM
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Default Re: (ratboy)

Do you have a leak, is that why you are adding fluid?? What about just adding some to the overflow?

If you are just topping it off then you should be fine. However if you are leaking/buring it and have to add a lot then you might end up doing it again
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Old Apr 14, 2005 | 04:32 PM
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Default Re: how does air get into the cooling system? (95lstegman)

I believe OBD2 Integras do not have a bleeder screw. I know that the earlier B18C1's had them, but later ones did not, and it probably changed with the change to OBD2.
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Old Apr 14, 2005 | 05:02 PM
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Default Re: how does air get into the cooling system? (PatrickGSR94)

ah, that would do it. i have a '95 (OBD-I). of course, i have LS. thanks for the info patrick.
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