Question about 2004 Mercury Mountaineer

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Rad. has small hole in it. nearly over heated this morn, could only get one gallon of anti-freeze, it was two more gallons low. would this cause the heater not to heat??

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Yes! When a car runs low on antifreeze, problems occur. When antifreeze levels get low enough, a car begins exhibiting enough signs that prompt its owner to have it checked.

Low antifreeze in a car engine typically causes its heat to quit functioning. This symptom is normally only noticed during the cold months, when a driver relies on the heat to be comfortable in her vehicle.

Posted on Apr 05, 2011

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Yes. If the cooling system was that low there would not be enough coolant to circulate into the heater core so you would get cold air from it. Hope this helps.

Posted on Apr 05, 2011


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Temperature just dropped only have 1 gal. antifreeze in .Book I have says a 7.5 1997 cooling system holds 23.6 qts.How much should I put in?

23 quarts is nearly 6 gallons which is a big cooling system so I guess it belongs to a commercial vehicle or PSV.

The minimum safe antifreeze solution is 25% but this gives only drive away protection for a few degrees of frost and the windchill factor can still freeze the radiator if the engine isn't thoroughly warmed before driving away.

Practically speaking a 33.3% solution is reckoned to provide the minimum protection as the coolant will turn to a semi-solid mush under very low temperatures and limit the possible expansion damage. It should be possible to start the engine. No freezing is likely to take place in most frosts experienced by the temperate regions.

A 50% solution is reckoned to be the minimum for good frost protection and makes best use of the antifreeze's anti-corrosion additives as well as providing a good summer coolant.

A 60% solution is reckoned to provide comprehensive protection.

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No heat and coolant leak

If you are low on coolant, you have no heat ( no coolant to circulating)
Where is the leak? Replace the faulty part.

Mar 21, 2013 | 2000 Ford Windstar

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Car running hot-can i use water temporarily until i get antifeeze

Yes you can but it should be as a last resort. The scale in the water when heated will fix itself to the engine interior. Over a period of time it will accumulate and then plug the radiator. Antifreeze helps keep this from happening as well as provide freeze protection for your car.

Aug 07, 2011 | 2005 Pontiac Grand Prix

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Im gonna change my coolant on my 2000 chevy silverado, how many gallons of 100% coolant do i put before i fill up with water?

Most systems usually take about 2 gallons to refill. That is 1 gallon of anti-freeze and one gallon of water. Since you have a truck it might take a little more. The anti-freeze and water are usually mixed together before they are put into the system especially if the engine has aluminum heads. You can also buy the coolant pre-mixed. If you do then you must buy two gallons.

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What is the Anti-freeze capacity for a 2005 Hummer H2?

The Cooling System Mix 1 7/8 Gallon (s) of Full Strength Anti-Freeze

Add to 1 7/8 Gallon of Water for a 50/50 strength mixture.


Dec 19, 2010 | 2005 Hummer H2

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How much coolant is needed for a full fill on a 2001 Expedition 5.4L

7 gallons of 50/50 mix anti-freeze with heavy duty radiator and rear heat, 6 gallons without rear heat and heavy duty radiator.

Nov 16, 2010 | 1998 Ford Expedition

1 Answer

The heater will not blow hot air unless you are giving it gas

Welcome to

This is a classic symptom of low coolant level or air in the system. Too, clogged heater core.

Buy a 5 min flush from your local dealer. With a gallon of Anti freeze and water pump lube. Flush the system per instructions on the back of the 5 min flush bottle. And add the one gallon of anti-freeze to system. The top off with water. Make sure engine is running with the heat selector on and fan on high.

See if the will work if not Change thermostat.

Thank you for using

Regards, Lee Davidian

Nov 09, 2010 | 2003 Nissan Altima

3 Answers

Regarding adding anti-freeze: should the motor be

Its best to check when cold since heat makes fluid expand. Always use 50\50 mix.

Jan 06, 2010 | 1992 Ford Explorer

1 Answer

I am not getting hot air in any cycles of my heating. What could it be?

Most common cause is low coolant level. If your anti freeze is low, the heater core is the first thing affected. It could also be frozen up if your coolant isn't strong enough, and will have to be heated in a warm garage to that it out again. After thawing, you will have to drain some out,( About a gallon, or 4 litres) and refill with straight anti-freeze to make it stronger. If it is none of the above, it will likely be your heat control thatis malfunctioning.

Dec 27, 2009 | 1997 Jeep Grand Cherokee

5 Answers

I don't have the owner's manual. The reservoir says ''Engine Coolant'' and it is empty; engine overheating. Is there a special fluid to use or can I just use plain water? Thanks

U need to use 50/50 mixture of long life/extendedlife coolant availible from any automotive parts store for around $8 per gallon. but you must have a leak, check for coolant leaking when the car is running, don't overheat this engine or u will blow the cylinder head gasket, a $1000.00 repair.

Apr 29, 2009 | 1999 Plymouth Breeze

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