Question about 2004 Kia Rio

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Loosing antifreeze water back flowing out of resevoir changed cap and flushed system

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Air in your hoses from the flush.

To Fix:
(you'll need more anitfreeze)
turn on engine, open radiator cap.
squeeze hoses, bottom one first, to releive pressure/air in your hoses.
Notice the level dropping in the radiator cap hole.
Once you seen the fluid level drop, add more anitfeeze, directly to the hole.
Once hole is filled to the top, replace radiator cap, and drive.

Posted on Feb 27, 2009


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How do i flush and replace radiator with anti-freeze ?

Drain the old antifreeze. Add straight water and a chemical flushing agent from a parts store, and follow the instructions for using the flush. Then drain again, and replace the radiator and use a 50-50 mix of antifreeze and water (distilled water, preferably-it is cheap) to fill up the cooling system. Leave the radiator cap loose, and start the engine and let it warm up to operating temperature-the upper hose will be hot after the thermostat is opened, and the coolant level will drop some and need topping up.

It's a good idea to also change the thermostat while you are changing the radiator. If you are not replacing the radiator itself, but a lot of brown rust drains out, then take the radiator off and turn it upside down and flush out good with a water hose.

Jun 24, 2014 | 1994 Mitsubishi Pajero

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Cooling questions

That can be caused by very low coolant (antifreeze) levels, a bad water pump, a stuck-shut thermostat, or a blown head gasket.

Jan 20, 2012 | Acura Cars & Trucks

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My truck is overheating, I just replaced the thermostat and the water pump looks like new and it seems to be runing good and it is still overheating to the hottest. the coollant container is not sending...

First if the gauge rises quickly and goes down quickly, there is air in the system. Second , a bad resevoir cap will let the coolant out the over flow and cause the car to over heat. Same with a bad radiator cap. Other possiblities are blown intake gaskets and blown head gaskets, these can be checked with a pressure test to the system.

Jul 05, 2011 | 2003 Chevrolet Trailblazer Ext

1 Answer

Hi my son's 92 Honda LX smelled bad this morning like the engine was overheating Son dumped water into resevoir and drove car back home. The engine was steaming. After letting it cool. Visual inspection...


Aug 10, 2010 | 1992 Honda Accord

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I have a serious overheating issue. As the vehicle idles the temp starts to rise if you bring up the revs the temp will fall a bit. As your driving it rises at every stop light or traffic line up. We...

With what you describe the problem to be I would have the radiator flow checked. Sounds like it may be clogged if not the pump is probably bad. The head gasket should be o-kay due to no loss of fluid or smoke out the tailpipe. Do theses checks and you should find your problem.

Oct 01, 2009 | 2002 Oldsmobile Silhouette

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I have a 2005 Chevy Equinox, keeps over heating. We changed the thermostat, then the water pump, but it is still running hot. No leaks and no check engine light. Not sure what else the problem can be.

These trucks are bad about developing an air lock in the coolant system. Be sure that there is no air in the system after sealing. This can be done by using the bleeder on the top of the engine near the water jacket. Hope this helps. good luck.

Jul 22, 2009 | 2005 Chevrolet Equinox

2 Answers

Heated coolant being lost at resevoir

How much are you loosing? If its just a little that could be from nothing more than expansion. If you are loosing a lot that could be either from overheating (steam) which would suggest the water isn't circulating and cooling or from a head gasket leak causing air to be injected into the water jacket and displacing the water.

Are you getting any oil in the water? foam? does the water appear to be milky?

Jul 07, 2009 | 1997 Dodge Neon

2 Answers

96 jimmy overheating

Make sure your thermostat is in good condition.

Jun 29, 2009 | 1999 GMC Jimmy

2 Answers

Proper method on coolant system flush

Best way is to buy a flush kit. It is an adaptor that you put in your heater hose and can hook up a garden hose to. You cut the hose and put this device permanently in the line. Remove the thermostat, don't put the new gasket in there yet just put the outlet pipe back on and bolt it down. Run the car when cold with your hose running for about 10 minutes with the radiator drain valve open on the bottom of your radiator and the cap loose, water should come out of the drain valve and the radiator cap. This will flush your engine adequately, why waste money on distilled water, save that for topping off your battery. Turn off your engine continue to allow water from your hose to flow as long as you are seeing any thing other than clear water flow until it flows clear. Turn off the hose, put the cap on the flush port you installed. the port stays under your hood and allows you to flush your engine as needed. Let the water drain through the drain valve. Put in a new thermostat, with a gasket this time. Refill with water and antifreeze as directed in your manual. You should be good to go.

May 21, 2009 | 1997 GMC Jimmy

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