Question about 2001 Nissan Altima

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How do i drian the radiator to put in new coolant

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There should be a petcock on bottom of radiator. just turn it, to open up drain. if it does not have a radiator cap, fill from coolant tank while running. release air from coolant line, if needed. just put coolant in tank to proper level, also turn heater on high. to get through whole system. run for a while then check coolant level.

Posted on Jul 18, 2010


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1 Answer

How many gallons needed to replace coolant from radiator on 2004 Chevy Tahoe 5.3L

About 3 and 1/2. If you let it set and drain. Takes time. If you drianed just the radiator and what spills out. Maybe 2 gallons.

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Where is the thermostat on a 1995 1.8 liter toyota carroolla

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1 Answer

I need to drain my radiator, can you tell me where the drian plug is?

Hi TL,

It's easier to find if you're underneath the front end looking up. On the bottom of the radiator you'll see a small almost wingnut shaped protrusion. That is the drain plug.

Just turn it counter clockwise and the coolant will start draining.

Remember: Anti-Freeze is harmful if ingested by pets. Catch the coolant in a pan to dispose of properly.

Best regards

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1 Answer

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1 Answer

Does anybody know how to drian the Coolant out of the radiator

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1 Answer

Drain the radiator

Hi There, Facing the engine there is a drian on the lower lefthand side of the radiator. it has a wingnut like head that turns counter clockwise one full turn and the fluid will drian out right below the suport. But be carefull number one its plastic, two it is very hard two get too, I had cut a grove aceoss a 8 mm socket to put over the wingnut shaped pedcock so i could turn it it is almost imposable two get a wrench on it. and three when I was done and closed it, I could not stop a slow slow drip about every 15 sec, My sug is two remove the lower radator hose on the right side, to drain it when its all done and said you wont have this drip problem. If any one knows how to stop that drip out of the plasic pedcock let me know. Thanks

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