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Coolant Loss: Where Is My Car's Coolant Going? | AxleAddict

Just as motor oil has vital engine performance additives, your coolant has additives It's essential to have your coolant fluid exchanged every so often. . is more intricate and depends more on fluid to help change gears automatically. . to the fuel tank, designed to clean the fuel system from the gas tank to the exhaust. Sex · Relationships The expansion tank filler cap is a prime suspect when coolant loss occurs. the bolts have corroded into the housing, but with penetrating oil and patience this can If in doubt seek professional advice. All automotive thermostats also have a temperature rating stamped onto the To remove heat, the radiator fan blows outside air across thin fin.

What Should You Do When Oil in Coolant Reservoir? - Your Auto Space

Consider whether the water pump is leaking. Check for retarded ignition timing. Retarded timing can allow heat from the combustion to leak out through an open exhaust valve, raising heat in the exhaust valves and manifold. Frequently towing heavy loads can cause coolant loss as well. Coolant loss may also come from specific driving patterns and engine operating conditions. If your driving pattern or traffic conditions have changed recently, this might be the reason for the drop in coolant in the system.

Coolant loss may happen if you: Some EGR cooler systems may leak. It can happen if the EGR system exhaust gas recirculation system design is not as efficient as intended.

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For example, an exhaust gas recirculation EGR cooler system was installed from the factory in some GM diesel 6. This cooler, under certain circumstances, has been reported to leak after miles of operation to warrant an updated replacement. Apparently, this EGR cooler turned out to be vulnerable to the use of antifreeze not appropriate to specific models and exposure to exhaust gases that eventually may leak through the cooler lines after miles of operation.

A leak in the EGR system leak may cause coolant to find its way through the exhaust system, the intake, and possibly the cylinders.

Don't ignore a car that loses coolant

Troubleshooting the EGR cooler usually requires a visit to the shop to have the system tested with special equipment. Coolant leaks may leave rust or white colored marks. Make a General Inspection of the Cooling System If your particular case doesn't fit any of the above situations, it's time to make a general inspection of the cooling system.

An inspection may turn up some clues that can lead you to the source of the problem. When inspecting the cooling and related systems, look for discolorations: These discolorations may come from small leak s around the following engine or system components: Check around the seams, where the core joins the tanks, and the core area.

Make sure the front of the radiator is free of debris and dust that may prevent proper radiator operation. Check for a broken or missing shroud that can lead to overheating and coolant loss.

Inspect the cap for bad seals, tears or similar damage. This may lead to overheating as well. Check the neck for nicks that may prevent a good seal. Look for cracks in the container itself and check the cap for leaks. Engine core plugs freeze plugs. Worn out or damaged pumps may start with a small leak long before you notice the problem. Upper and lower radiator hose and heater hoses.

The heater hoses are connected to hard tubing, usually on the firewall, on the passenger side, inside the engine compartment. On some large models, the core may be installed towards the rear of the vehicle. Check each system hose, fitting, and connector for: If You Can't Find the Leak, Pressure Test the System Coolant leaks are so small sometimes that they can escape through the system only under pressure and with a fine mist that leaves no traces behind, making them tricky to locate even through a careful visual inspection.

This is where a pressure test may help. A pressure test forces coolant out through the leaking point, if it exists, so that it can be found. The test can be done at home or at the shop. The pressure tester tool is basically an air pump, and the tool may be borrowed from a local auto parts store. This is the pressure test general procedure: With the engine cool, remove the radiator cap and attach the tester hose to the radiator neck or the coolant recovery tank, depending on your particular vehicle model.

Start pumping air into the system until the tester gauge reads the system pressure as indicated on the radiator cap. When overheating occurs, check to see if the radiator gets hot at both top and bottom as it should.

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Note that water pump failure could cause the cam belt to break and possible engine damage. If in doubt about coolant circulation, with the cap off, squeeze the bottom radiator hose several times. The level should rise and fall as you squeeze and release. Drain and flush the radiator with a flushing compound.

Fans can go wrong too. Make certain that electrical type is working. Mechanical types with a central clutch may appear to rotate even if this clutch fails, but not powerfully enough to displace air. Your technician may suggest running a chemical through the engine to clean out this sludge, and you can help by driving the car for a longer duration. For our clients who primarily drive short trips, we recommend taking the car out for a good drive where the engine can reach operating temperature and maintain that long enough to burn off the water vapours.

Luckily for us in Markham Ontario there's a few good shopping malls within 30 minutes of highway driving so that gives us someplace to go!

If your spouse has a longer commute, give him or her the car once every week or two so that they can take the car to work.

Radiator (engine cooling)

Remember that the worst thing for a car is to have it sit for long periods, drive it periodically or use it for frequent short trips. Your car is designed to work and be driven!

Another and more concerning reason for the milky residue is because coolant has mixed in with the engine oil.