Antifreeze and Engine Coolant

Red five year, hoat type.

no ( in an emergency you can use straight , preferably distilled water ) but

for the engine cooling system the best protection for corrosion , boiling or

freezing is a 50 / 50 mix of antifreeze and preferably distilled water .

The corrosion protection " portion " of the antifreeze does " wear out " so

change the coolant mixture as recommended , also Ford says not to exceed

60 % antifreeze in the mixture

Dex-cool

The company that makes the all model coolant claims you can.

why would you want a diagram. The system has two radiator hose's upper and lower. One goes to the block and the other to the water pump. Now off of the pump you will have a hose going to the heater core wich is located on the passenger side of the firewall you will see two line. One comes from tyhe water pump the other returns to the block. Your question makes me think there is something else you are wanting to know. No heat? Drain radiator below the heater core lines disconnecct the two hoses then use some compressed air to blow crap out of heaster core reconnect and refill radiator

yes

Calcium, Lime and Rust which is used for the home... most places say not to use it

Yes the v6 engine has 6x1.1/2" and 4x1.1/8" welch plugs these are available in BRASS, PLATED STEEL and STAINLESS STEEL this information has been supplied by Graham Matthews Auto Products Australia's Premier manufacturer of welch plugs to the Australian and overseas markets for over 30 years

Drain plug is on the left side of car, if you are underneath. However, this is tricky, since it needs G12 coolant, and you need to make sure that the air is COMPLETELY removed from the system. Good luck!

the average coolant temp depending on what thermostat is in the vehicle shold be between 175 degrees and 190 degrees

If you hear a sound like liquid churning when the car is turned off, you are probably low on coolant. This sound is actually the sound of coolant backwashing into the reservoir after the engine stops actively pulling it in.

You put in what the owner's manual recommends. Contrary to what aftermarket coolant manufacturers say, there is no such thing as a universal coolant. Put in the wrong stuff and you can damage water pump seals and create enough electrolysis to eat up your heater core. It's much cheaper to buy the right coolant the first time around.

Rick

I'm a retired ASE Master/L-1 Technician. I still keep current with the latest automotive technology. Visit my blog for cool articles and TSB's: http://free-auto-repair-advice.blogspot.com

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Depends where it's leaking, but basically you fix it the same way you fix any coolant leak.

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Generally, its a hose that is leaking. You find the leaking hose, and you replace it, being sure to properly treat the ends with anti-leak compound. If its the radiator, you need to replace that. If its the intake manifold or head, you are getting into big bucks to replace the gasket involved.

yes it can

A 1994 Mercury Grand Marquis would have come from the factory with a

50 / 50 mix of distilled water and GREEN color antifreeze ( meeting Ford

specification ESE-M97B44-A )

An overflow tank is a bottle that holds coolant that expands and leaves the radiator under driving conditions. The Coolant will go back into the radiator as needed.

Are you asking why is your coolant disappearing? If so, it can be a number of things. A blown head gasket, leaking water pump, radiator, heater core, hose, to name a few. If you can see no apparent leak after driving the vehicle then suspect a blown head gasket. As this can do serious damage to your engine, I suggest you have this fixed ASAP.

My book shows cooling system capacity is 12.3 qts.

Some normal colors are green, yellow, red, pink, orange, blue,....

Blown head gasket. But with a blown head gasket wouldn't you notice a kind of milkyness to the oil when you checked the oil because of the mixing?

if you are talking about the weep hole in the water pump. that hole will let water out when the seals in the water go bad. that will tell you to get the water pump replaced.

This problem is a big hassle, because combustion takes place when gas, air and spark mix and combust, this pushes the piston in a downward motion and thereby gives you acceleration (which causes the car to go forward). The first problem is that the coolant is water-based, and this will greatly reduce the combustion process, possibly extinguishing the combustion altogether... whereby causing you to run on 5 cylinders instead of 6. The second major concern is that water can cause the combustion chamber to rust. In the onset, the *leak*that is causing coolant to go into the combustion chamber is either a faulty headgasket, or a crack in the engine block from overheating. As the leak worsens (IT WILL NOT GET BETTER ON ITS OWN), the coolant will mix with the oil down in the oil pan, and then the water/coolant will get recirculated within the engine block and possibly cause rusting in the rest of the engine (sooner than later). 2 things that convolute your oil are dirt and water. Dirt is usually taken care of with every 3000 miles oil change, but water (if enough) can cause your engine to overheat, and then the engine block too crack worse or even sieze, and then a siezed engine could cost $1,500.00 to $3,000.00 to replace. A headgasket replacement is $500.00 to $800.00 (shop around for price). You might end up having to buy a different used vehicle if it is cheaper than a new engine block, depending upon your budget.

Orange. Make sure to bleed out the air if you are filling the radiator.