![]() ![]() Period, the solution is simple: replace the radiator, hoses, intake manifold gaskets and maybe the water Yet once the vehicle has gone past the warranty While the vehicle is still in warranty - turnĪ blind eye. Is the GM dealer response to the problem. (overflow) container would suffer the same problem. If air were the culprit, all Dex-cool systems in every vehicle with a recovery Neither of these theoriesĬompletely explain the whole picture, and these are not a universally shared Resulting in aluminum oxide formation and deposits. Head design traps air in pockets, allows condensation and ultimately dilution, They say that with a faultyĬooling systems allow evaporation, allowing the Dex-cool to destabilize, weaken,Īlready marginal protection, and then turn muddy. You need to drain this coolant and replace it with a new one.Industry (including GM) that claim that exposure to "air" causes the Dex-cool to come apart,Īnd that faulty radiator cap design is the culprit. If your coolant is turning brown, it can be because of corrosion. As a car driver, you must ensure that your coolant is in good condition and optimum. In summary, coolant is a vital fluid that is needed by your engine. This will then cause rusting, and it will cause wear on the seal and bearings of the water pump. The overflow tank will also have sufficient coolant to keep the radiator full even in cold temperatures.īut if there is no overflow tank, the air will enter the cooling system through a radiator cap if the coolant contracts. If your coolant cools down, it will contract, and it will cause an air pocket. The rust in your cooling system can be caused by the air getting into your radiator if the engine cools down. There will also be a breach in the system, and it will contaminate the coolant with the transmission fluid. If your vehicle has automatic transmission, the engine cooling system will cool the transmission. A blown head gasket or a broken cylinder head will allow oil and the coolant to mix. It can also be because of a leak in the water pump gasket. This color and texture can have severe problems, including the cracked block or blown head gasket. If your coolant is thick and brown, you have problems. So you have to ensure that you have removed the contaminants and put up some new and fresh coolant. There is also an issue with rust and corrosion that is making your coolant reservoir brown. The brown sludge can cause a mixture of incompatible coolants and the coolant not draining frequently enough. You can replace it with a new coolant with active anticorrosives. If your coolant turns brown, the coolant needs to be drained, and the system should also be flushed so that you can put in some fresh coolant. The sludgy oil in your coolant will turn it brown. The rust will give the old coolant an orange-brown color and dark brown color. So over time, the block will use these inhibitors, and they will begin to rust from the inside out. A fresh coolant has corrosion inhibitors, and it keeps the block and other iron components from rusting. It happens mostly in iron engines that coolants have not recently changed. If your coolant is turning dark brown, it is not unusual. You also need to flush the system to be topped up with a fresh and new coolant. If you notice that your coolant is brown, you need to drain your coolant. The coolant will become brown if it is rusted. It can also be because of a boiling coolant. Your coolant can turn light brown if you have a blown head gasket or a head gasket broken down by rust. So let us discuss why the coolant is turning light brown or dark brown. It is not normal if your coolant is turning brown. In this article, we’ll be talking about why coolant is turning brown so let us get started. If you also have this question, you are on the right page. Many people have been asking why their coolant is turning brown. In that way, you can do something about it. With that, you should always check for the sole reason. You cannot determine a solution if you do not know the reason first. This is the first step that you should do if you want to fix your brown coolant. But still, you have to know where the rust is coming from. The corrosion can come from anywhere and it can also come from the coolant tank itself. A brown coolant can also come from a blown head gasket. ![]() So why is your coolant brown? Your coolant can turn brown if it is rusted the corrosion can cause the coolant to turn brown. If you know nothing about this, you will not be able to know if a brown coolant is normal or not so let us talk about that. People have been experiencing a brown coolant. As a car driver, you should know the basics, including knowing how important coolant is for your engine. ![]()
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