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Old 12-27-2008, 04:55 PM   #1
travisj027
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2002 SC1
Default How do you drain a radiator on a Saturn SC1 2002?

Just wanted to know because I have no clue.

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Old 12-27-2008, 06:17 PM   #2
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1998 SC2
Default Re: How do you drain a radiator on a Saturn SC1 2002?

There is a little plastic drain valve on the bottom right corner. It breaks real easy. Best way is to remove the lower radiator hose. The valve is hard to get at from either above or below.

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Old 12-27-2008, 06:34 PM   #3
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2000 SL2
Default Re: How do you drain a radiator on a Saturn SC1 2002?

i also find it easier to disconnect the radiator hose

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Old 12-27-2008, 11:07 PM   #4
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Default Re: How do you drain a radiator on a Saturn SC1 2002?

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Originally Posted by mr18436572 View Post
i also find it easier to disconnect the radiator hose

Lower rad hose is higher than the rad drain.

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Old 12-28-2008, 12:04 AM   #5
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Wrench Re: How do you drain a radiator on a Saturn SC1 2002?

http://www.autozone.com/shopping/rep...00c1528017e62e

DRAIN & REFILL

Make sure the engine is cool and that the vehicle is parked on a level surface, then remove the surge tank pressure cap.
Position a large drain pan under the radiator drain plug on the right side of the radiator and engine drain plug under the right front of the block.
Open the radiator drain and remove the engine drain plug, then allow the coolant to drain from the system.
Close the radiator plug and install the engine plug to the cylinder block. Tighten the engine drain plug to 26 ft. lbs. (35 Nm).
Fill the system through the surge tank using a mixture of water and the recommended type of antifreeze.
Start the engine and check for leaks.
After the engine has run for 2 or 3 minutes, add coolant as necessary to bring the coolant level to the surge tank FULL COLD line.
Install the surge tank pressure cap.

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Old 10-29-2014, 10:51 AM   #6
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2000 SC1
Default Re: How do you drain a radiator on a Saturn SC1 2002?

how do you bleed the air out though, or burp?

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Old 10-29-2014, 11:43 AM   #7
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Default Re: How do you drain a radiator on a Saturn SC1 2002?

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Originally Posted by strnlvr View Post
how do you bleed the air out though, or burp?
Happens automatically. Much nicer than my Subie's that you have to jack up the front end so the radiator cap is higher than the rest and hope for the best and not as nice as my dad's '95 Oldsmobile that has 2 bleeder screws for the cooling system.

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Old 10-29-2014, 03:58 PM   #8
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Default Re: How do you drain a radiator on a Saturn SC1 2002?

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Originally Posted by fetchitfido View Post
Happens automatically. Much nicer than my Subie's that you have to jack up the front end so the radiator cap is higher than the rest and hope for the best and not as nice as my dad's '95 Oldsmobile that has 2 bleeder screws for the cooling system.
Yeah, I like the Saturn design. Surge tank/reservoir is at a high point, so it is self purging.

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Old 10-29-2014, 04:50 PM   #9
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Default Re: How do you drain a radiator on a Saturn SC1 2002?

there is another Block drain bolt in the bottom of the thermostat housing too

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Old 10-29-2014, 06:10 PM   #10
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1996 SW2
Default Re: How do you drain a radiator on a Saturn SC1 2002?

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Originally Posted by alordofchaos View Post
Yeah, I like the Saturn design. Surge tank/reservoir is at a high point, so it is self purging.
Yup, simple, reliable system; pressurized reservoir at the high point, level in the reservoir reflects the coolant level of the whole system. Easy visual check. Coolant is never exposed to "the outside world". Our two Ford pickups use the same design; they actually refer to the reservoir as a "de-aeration" tank or degas bottle (although I have no idea what it has to do with French Impressionism...). Kind of astonishing how many owners of these trucks get confused when they can't find the "radiator cap"....

Block drain is about at the same low point as the radiator petcock, but it drains the block, not the rad. Depends on the OP's intent; if it's just for a radiator R&R, and retaining the coolant in the block, the petcock is a better choice. Also, even if the petcock is vulnerable to breaking, so is the block drain, and the consequences with the block drain plug breaking are, um, well, more complicated.

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