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Where is the radiator drain plug on a 2007 Tahoe

I want to change the anti-freeze

Posted by Anonymous on

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vintagescoot
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SOURCE: 2002 chev 2500 diesel

You may need to re-set the light by turning the key like you are about to start it then taking off your battery terminal, turning the key to the off position then trying it again

Posted on Jul 26, 2009

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SOURCE: need to change radiator anti-freeze on a 2001

Hi the drain is usually located at the bottom of the rad but as you dont need to drain all the water out the best option would be to remove one of the hoses off the bottom of the rad then let the water drain out then after you have drained enough (you can drain it all this way also) put the hose back on and make sure its tighten up properly.

Now when you fill it back up make sure you get all the air out of the water system as not doing this can cause damage to the engine. Most engines are self bleeding so you should have no problems with this.

Have a good look at all the water hoses that run along the top part of the engine and check if any of them have a small screw located along one of the hoses it will be half way along the hose and looks like small plastic screw if you have one of these then remove the screw before filling the water up then when you start filling it up all the air will come out of here wait untill all the air has stopped coming out and the water is flowing out without any air bubbles present then tighten up and top the water up to the correct level.

Now start your car and let it tick over untill it reaches temp wait untill the fan cuts in if it is electronic fan keep an eye on the temp as not to boil the water incase of any air lock problems you should find you have no problems.

Let me know how you get on or if you need further assistance ok

Posted on Oct 05, 2009

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2. Allow the engine to cool down for about 3-hours before the start of this operation.
3. Open the hood, and disconnect the battery negative terminal. Tuck the negative terminal aside so it won't flip back.
4. Locate the radiator drain-plug (plastic wing-nut) on the lower back side of the radiator, and turn it backward to remove it.
5. Place a container under the radiator to catch the anti-freeze coolant.
6. Remove the radiator cap.
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Hello, perform the following steps in this order:
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1.Raise front end of car, and place one jack stand under frame of car on the inside of each front wheel.
2.Place a 2 gallon (low profile) bucket under the radiator drain plug. The drain plug will be located at the bottom of the radiator.
3.Unscrew the drain plug and let coolant drain into bucket. (It may be necessary to adjust bucket so no coolant leaks onto the ground.
4.After all coolant has drained from the radiator, tighten radiator drain plug finger tight, then 1/8-1/4 of a turn with a wrench.
5.Unscrew radiator cap and begin filling radiator using 50/50
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PLEASE VOTE FOR THIS SOLUTION IF YOU FOUND THIS INFORMATION HELPFUL.

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The radiator cap lets some of the coolant out in to the reservoir tank as you drive and the coolant expands due to heat. When your radiator cools off a vacuum is created inside of your radiator at that time your radiator cap is to open it's valve and **** the coolant from the reservoir tank back into the radiator via the small hose that leads from just under your radiator cap to the reservoir tank.

Make sure the hose leading from just under your radiator cap to the reservoir tank has a tight seal at both ends as well as no leaks.

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1 Answer

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