Question about 2000 Chevrolet Malibu

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Coolant system is air locked..need help to remove it

I have a chevy malibu 2000....i put some anti-freeze in the other day when she was cold..ever since the temp hand started going up a bit...i figure i have her air locked...does anyone know the procedure to get the air out...on other vehicles i would remove the screw on the goose neck...but cannot seem to find it on this thing...you do not put the antifreeze in the radiator on this thing there is a seperate resovoir...any assistance would help

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Here is the short way to get air out, use a hydraulic floor jack (or car ramps) and raise the front of car as high as poss, then fill the coolant surge/recovery tank up to the top, run the engine until it get up to operating temp, then shut it down and let it cool, this will cause the air to migrate to the coolant surge tank and the system will self bleed, used this method for years.

Posted on May 20, 2009

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You should have an overflow bottle where you add antifreeze, the system will bleed any air pockets out by itself, double check your overflow bottle and see if its low, the engine will keep sucking out of this bottle until the radiator is full.
If your engine is getting to hot you may have a bad thermostat, also check your water pump and see if it looks like water is leaking out of it,the face of the water pump will be wet, if it is then it probably needs to be replaced.
good luck

Posted on May 20, 2009

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I have adouble rads in my sons house with a termestate on one side and a screwed top on other side how do i bleed them please

Posted on Jan 08, 2010

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Hello, an air lock is a great possiblity. However, you may have put to much antifreeze in your vehicle. Did you mix an 50 percent mixture of water and ethelglyconel or antifreeze. A 50 50 mixture is the correct way to fill your radiator. Also, I am sure you have a radiator on your car I would generally check the front end for a radiator cap and it may be hidden under a plastic cowling of some sort as well. If your temperature still rises after you are sure youre mixture is correct I would check and see if your thermostat is sticking or also check if you have electric fans that are not working if your vehicle comes with them.

To solve the air lock turn your heater on the max setting and heat. Let it run and keep adding water into your radiator until the bubbles go away and the water comes down. Now be careful and do not let the water get to hot and open it becuase that is very dangerous. I hope this information helps you.

Posted on May 20, 2009

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