Question about 2000 Chevrolet Malibu

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Engine over heats anti freze boils out of over flow

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Same problem with mine do not work...took thermostat out thought it to be a Air block also...ran engine with coolant cap off to remove block. Took car for test drive there was no over flow problem after that. Gauge still goes just over the half mark however.

Posted on May 27, 2010

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Idleing? on the road? are the fans that cool the radiator working? these engine are NOTORIOUS for intake manifold gasket leaks. If it has run low on water you may have engine damage (head gaskets)

Posted on Apr 25, 2010

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2003 dodge Durango is over heating every hour radiator looks bad but need more advice and is spraying antifreeze on the 1st hour of running

If the radiator is spraying coolant from the fin area, you should either have it recored, or replace it. Generally, it is not practical to repair a radiator core that is leaking due to corrosion - it will soon spring a leak from some other spot. (recoring: remove the pans and put them on a new core). Rock Auto sells new radiators ranging in price from $95.79 to $250.89. The same radiator is used for both engine models, and also in the Dodge Dakota from the same year.

Cooling system corrosion is the result of failing to change the coolant when specified, or of using tap water with a high ionic content (this is especially a problem in the Southwest US). Skimping on the anti-freeze also leads to corrosion; anti-freeze contains corrosion inhibiting compounds, and it raises the boiling temperature of the coolant so it can perform its function over a wider range of conditions (liquid can remove more heat per volume unit than steam). Keeping the system properly pressurized (leak-free) also raises the boiling point. If your tap water is problematic, use deionized water (the water from a household dehumidifier is excellent if the dehumidifier is reasonably clean).

If you must add coolant to an overheated engine, do so slowly, while the engine is running to minimize thermal shock to the system. You want to cool the engine down evenly to avoid cracking anything. Keeping the engine running circulates the coolant to prevent sudden cold spots. It also helps to prevent bearing seizure - see the next paragraph. Add your coolant to the overflow tank first - it is dangerous to remove the radiator cap on an overheated engine.

Continually overheating the engine will damage it - the oil breaks down and turns to varnish in the bearings, and there is a possibility of cracking the block or a head from thermal stresses beyond design limits. Check the quality of your engine oil right away to see if it is breaking down; if so, change it.
RockAuto Parts Catalog

Jun 14, 2015 | 2003 Dodge Durango

1 Answer

Water boiling out of water bottle

don`t sound good, but i would see if water was circulating in radiator when warm,and check if fan comes on like it is supposed to to cool it ,if water does not circulate check hoses to make sure the suction does not restrict flow ,if no circulation you could try replacing thermostat (cheapest fix ) anti-freeze dilution (second cheapest ) or uh-oh maybe blown head gasket......

Feb 23, 2014 | Cars & Trucks

1 Answer

When i turn on the heat it smell like coolant

Your heater core is leaking anti-boil into the cabin. Either the core or the connections to the core are broken. CAUTION: Anti-boil is poisonous. Whenever working on the system take great care to keep it off your skin and do not allow it to puddle anywhere as dogs and cats are attracted to it as it has a sweet smell. Also, do not work on the system when it is hot as it can cause burns.

Drain anti-boil (wait until car is cool!!) and pull the core. It is located in the HVAC system, bottom right side. You will need to remove a substantial quantity of interior components to do this. Be prepared for some coolant spillage as you remove the core.

Using new hose clamps, install the new heater core, ensuring all connections are secure. Install any previously-removed interior/HVAC components or covers.

Refill the anti-boil through the overflow bottle, leaving the cap off. With the heater set to max heat, start the car, and allow to warm to normal operating temperature. Now slowly fill in the coolant to the specified level until the system is free from air bubbles. Install the cap.

Stop the engine and allow it to cool. Remove the cap slowly, allowing any residual air pressure to be released. Top up the anti-boil as needed, again leaving the cap off. Start the engine and allow it to warm to normal operating temperature. Top up anti-boil again, slowly to eliminate any air bubbles.

You may need to repeat this procedure two or three times until all air is purged from the system.

Oct 17, 2013 | 1999 Volvo V70

1 Answer

Loosing anti freeze engine over heating

replace the viscous fan hub or check the electric fan operation as you do not have a forced air flow at idle. When the engine is working hard at low revs (pulling up hill) there is insufficient road air flow and at idle at lights there is no road air flow

Jun 23, 2013 | 1999 Cadillac DeVille

1 Answer


If your coolant level is full the low coolant switch is probably faulty they are normaly just a float & the float might be stuck. & Coolant should be used all year round as it is not just anti freeze but is (Anti freeze, Anti boil, & acidity, alkalinity regulator.) It changes the freezing/boiling point (water freeze at o degrees centegrade & boil at 100 degrees but with glycol it changes this depending on what % glycol there is in the system. The acid/alkaline regulator is corosion inhibitor to prevent parts being eaten from the inside out (radiators, heater cores, welsh plugs etc..)

Jul 01, 2012 | 2001 Oldsmobile Alero

2 Answers

Drained radiator added prestone Radiator flush refilled and started overheating, drained radiator replaced thermostat and now I get no heat from heater,Radiator water is hot

disconnect the heat hoses going into fire wall , put hose into one with pressure and flush as it sounds like it could be bloked in the heater core,the other thing that could be the problem be the hot ,cold switch as it restricts the flow to makes the heater hoter or colder , it might need tlc or replacing as it is manaul not elec

May 08, 2012 | 1995 Toyota 4Runner

3 Answers

Engine heating up to overheating but no heat in car. Radiator fluid going to overflow reservoir

looks like your thermostat is sticking, and will need replacing,

this part is used when engine is cold so it heat up only a small part of the water jacket, once is warms up the thermostat opens and allows heat to car to warm you and keep the engine cool.

this is not a difficult job but messy and you will need to top up coolant water afterwards.

the termostat once removed can be tested in boiling water when cold and you should see it open if it does not it needs replacement and new gastkit and sealing.

best to have a qualified engineer do this job. is should not be too expensive.

I hope this was useful.

Jan 24, 2011 | 2001 Nissan Sentra

1 Answer

Radiator fluid boils out through the overflow tank after turning the car off but my temp gauge says the car isn't hot, but you can feel extreme heat coming off the engine.\r\n 1993 maxda mx3 1.8 dohc v6 ...


Aug 08, 2010 | 1993 Mazda MX-3

2 Answers

Over heating i have water in the radiator do i have to put some radiator fluid in so it wont over heat?

You need to check that the water is flowing first, with the engine cold remove the radiator cap and start the engine let it run until it gets warm, once it is warm leave it going until you can see the water flowing. If you can't see it flowing after 10-15 mins of the engine running then you will need to replace the thermostat.
If the water isn't flowing then you have a problem with the water pump and you will need to replace this.
Hope this has helped

Jun 26, 2010 | 2004 Chevrolet Impala

1 Answer

Anti-freze leak

check and see if the water pump is leaking... if it is replace it

Feb 17, 2009 | 1999 Porsche Boxster

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