What does coolant silicate drop out cause?
That meant that if the antifreeze or additives got too concentrated in the coolant, then the excess phosphate and/or silicate would “drop-out” of the coolant. These “drop-out” problems caused premature water pump failures, radiator blockages, heater core problems and were a headache to clean up.
What does bleeding the coolant mean?
Bleeding the radiator is the process of releasing the air that may become trapped in the upper portion of a car’s radiator. Over time, air finds its way into the overflow tube and reservoir of your radiator system.
What causes coolant contamination?
One of the most common coolant contaminants is either engine oil or automatic transmission fluid. Engine oil can be introduced into the coolant passages in various areas, but cylinder head or headgasket failures are the most common. When this happens, engine coolant will take on a milky brownish-white consistency.
What causes coolant electrolysis?
Electrolysis damage in an engine cooling system is caused by unintended electrical currents that flow from voltage differences that exist in the engine coolant jacket, the radiator, and the heater core. The damage can include rapid corrosion, pitting, flaking, and pinholes.
What is an indication of silicate drop out color?
That white goo is the silicate in the coolant. That is called silicate dropout, it happens when the antifreeze/coolant has been used beyond it life expectancy and the additives break down.
What is low-silicate antifreeze?
Conventional Low-silicate This is commonly called antifreeze. It’s a bright green fluorescent liquid that contains silicates. This compound salt includes both silicon and oxygen molecules that work as resistors within the fluid to increase the boiling point and lower the freezing point.
Is Bleeding coolant system necessary?
Air pockets in the cooling system may cause serious engine damage. You need to bleed the air out of the cooling system in your car. Air pockets — or hot spots — are dangerous.
What are symptoms of air in cooling system?
Signs and symptoms of radiator airlock include:
- Overheating during normal driving.
- Heater not functioning correctly.
- Reduced performance.
- Radiator leakage / losing coolant quickly.
What happens if coolant is contaminated?
If the coolant level becomes too low, too dirty or too contaminated, it cannot properly cool the engine. The engines in today’s vehicles cannot withstand excess heat. If the engine overheats, it can mean catastrophic engine damage and extremely expensive repairs.
How do you know if coolant is contaminated?
symptoms of bad coolant
- your coolant is dark, murky, smelly or full of debris. if your coolant looks (or smells) bad, it’s way past its useful life.
- your temperature gauge reads higher than normal.
- your engine overheats.
How do I stop coolant electrolysis?
WAYS TO PREVENT ELECTROLYSIS: ALWAYS make sure the radiator is not used as a ground and that all components are functioning properly. Periodically test your system and check for any discoloration or pinholes – especially around the tube-to-header joints and tubes near the center of the core by the electric fan mounts.
How do you fix electrolysis in a cooling system?
Electrolysis damage is pretty final and the only way to fix it is to ensure the system is free of stray current. This would be followed by replacement of any other failed or damaged components and a coolant flush.