Question about 2003 Oldsmobile Alero

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How do you drain & refill the antifreeze on a 2003 alero?

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  • DAVETHEC Apr 16, 2009

    I am unable to download the manual is there another way

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Look for the radiator find the lowest hose and take it off (when cold ) let it drain and refill through the expansion tank should b roughly 3-5 liters needed
http://www.devicemanuals.com/guide/Automobile/Oldsmobile/Oldsmobile-Alero-Owner%27s-Manual-2003-==TVRFd016QTI=.html
this link should let you download the manual for it . enjoy

Posted on Apr 14, 2009

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2003 alero coolant light keeps coming on i refill and drive a couple of miles and it comes right back on Then it might go off as the temp rises. Might i need to replace the radiator or thermostat? M


let it cool,then take the cap off of the radiator,fill with antifreeze,run motor with cap off for 1 minute,shut off fill with anti freeze and put cover back on,if you continue having problems,replace the thermostat,if you have to keep refilling it,then you have a leak,check your radiator ,hoses and pump for leakage

Jun 21, 2015 | Cars & Trucks

1 Answer

Coolant is brown


brow and muddy color usually is a sign of not using enough antifreeze to protect system from rust.
drain the radiator and completely flush the system. use a quality flush system from the auto parts store. after system is flushed so it only flows clean water after draining a few times then empty system and refill with 50/50 antifreeze /water and make sure system is cycled through 5-6 time to make sure air is purged from the system

Feb 16, 2014 | 2003 Dodge Neon

1 Answer

Howtodrainatifreeze


You can drain the antifreeze at the radiator drain plug, which is located on the lower front of the radiator on the drivers side. If your model doesn't have the drain plug, then remove the lower radiator hose and drain. Make sure you have something in place to catch the antifreeze and always drain antifreeze after the car has had time to cool off.

Sep 19, 2013 | 2002 Oldsmobile Alero

2 Answers

I want to change my antifreeze in my 2003 merc grand marque. Where is the drain plug on the radiator? Do I pour the new antifreeze into the overflow tank on top when I refill it?


look down at rad from top to get familiar with where i am talking about. now opposite side of the lower rad hose is where you want to go, two styles of rads, one has a wing nut type white plug, and other as 6 sided white plug, unthread with pliers or by hand loosen till desired flow is coming out. fill into reservior or overflow tank to half way and run engine til i reaches operating temperature and you has good heat out of heater, this makes sure all air is out of system, and this is complete ttop up to full and install cap

Jul 06, 2010 | 2003 Mercury Grand Marquis

1 Answer

2002 Alero running hot


Check Antifreeze/coolant level in reservoir. Check motor oil level.

Have cooling system checked. Drain, flush, fill with proper antifreeze. Change the thermostat as well.


Apr 28, 2010 | 2002 Oldsmobile Alero

1 Answer

Best way to change coolant in 2003 sierra


With engine cold, remove radiator cap. At bottom of radiator on left side (as you stand in fronof truck), there is a plastic drain plug that screws into the radiator. This plug does not look like a bottle cap, rather it looks like a large, raised tab. Turn counterclockwise to remove. Have a large pan under the truck at this location, or have the truck parked on the grass. Allow to drain completely. Dispose of the old antifreeze and do let children or pets drink it; it is deadly poison. If you want to do this right, replace the plug, refill the radiator with water only, replace the radiator cap, start engine and let run until opwerating temperature is reached (about 20 minutes), then turn engine off, let cool completely, and repeat the drain procedure. This will more thoroughly remove the old antifreeze from the system. Now refill the radiator with the proper mixture of new antifreeze and water, run engine to proper operating temperature. turn off engine and let cool completely. Add additional water and antifreeze into the coolant overflow bottle if necessary. After changing antifreeze, you may need to add more again after couple of days.

Feb 26, 2010 | 2003 GMC Sierra 1500

1 Answer

Antifreeze completely leaking out


Well, take a light and a mirror, install new water to your system, then start looking. Once you find the source of the leak, you will know what is the next step.

Dec 11, 2009 | 2003 Oldsmobile Alero

2 Answers

2001 Oldsmobile Alero overheating


I think you started out looking in the right places. Replacing the coolant, thermostat, relay and sensor are all fairly inexpensive.

I believe you either have blockage in the system (especially if you're using tapwater), or your water pump may be failing.

I would first either take it to a radiator shop and have them flush the cooling system out thoroughly, or else pick up a chemical flush kit and do it yourself. This involves more than just drain and refill.

If this doesn't work, your next step will probably be replacing the water pump. At almost 200k miles, it's probably about due anyway.

Jun 16, 2009 | 2001 Oldsmobile Alero

2 Answers

2002 Oldsmobile Alero heating up


I happen to own a 2002 alero, and alot of people says the same thing about theirs. You may need to replace you head gasket and run more antifreeze than water.

Nov 01, 2008 | 2003 Oldsmobile Alero

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