1995 Sentra cooling system capacity

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TPinAZ - 21 Dec 2007 15:53 GMT

I opened the drain on the bottom of the radiator, and all that came
out was about 3 quarts (I believe the capacity is 6 in an 1.6lL A/T
model). Is there an air relief plug somewhere that will let out the
rest?

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TPinAZ - 21 Dec 2007 18:11 GMT

> I opened the drain on the bottom of the radiator, and all that came
> out was about 3 quarts (I believe the capacity is 6 in an 1.6lL A/T
> model). Is there an air relief plug somewhere that will let out the
> rest?

I found it: remove the heater inlet hose from the connector pipe.

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John Henderson - 21 Dec 2007 19:01 GMT

> I opened the drain on the bottom of the radiator, and all that
> came out was about 3 quarts (I believe the capacity is 6 in an
> 1.6lL A/T model). Is there an air relief plug somewhere that
> will let out the rest?

On the GA16DE engine, there's a coolant drain plug for the block
on the front (facing the radiator).

More importantly, there're two smaller air bleed plugs to let
the air out when refilling with coolant. One is on the top
right, back towards the thermostat. The other is below the
distributor.

John

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still just me - 22 Dec 2007 17:11 GMT

>More importantly, there're two smaller air bleed plugs to let
>the air out when refilling with coolant. One is on the top
>right, back towards the thermostat. The other is below the
>distributor.

And if the car has bleed plugs, use them unless you know better. Some
engines will form air blocks and be damaged if the air is not bled
out. Other engines just push it out naturally... but unless you know
how your motor behaves, err on the caution side.

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Plague Boy - 30 Dec 2007 04:59 GMT

>> More importantly, there're two smaller air bleed plugs to let
>> the air out when refilling with coolant. One is on the top
[quoted text clipped - 5 lines]
> out. Other engines just push it out naturally... but unless you know
> how your motor behaves, err on the caution side.

I'd still like to change my coolant. What are the chances these
plugs will break off? (g).

PB '92 Sentra 1.6L

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John Henderson - 31 Dec 2007 02:09 GMT

> I'd still like to change my coolant. What are the chances
> these plugs will break off? (g).
>
> PB '92 Sentra 1.6L

You've got nothing to lose by trying them carefully before you
commit to draining the coolant.

Likewise, I always make sure I can get the manual transmission
filler plug moving before I remove the drain plug.

John

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