It may be hard to believe, but antifreeze has been around since the mid-19th century and was used initially in dynamite before finding its way into the automobile. Early engine designers tried other means of cooling before antifreeze gained a foothold. It came to prominence during World War I when it was used in tanks and vehicles to prevent them from freezing in the battlefield.
Andrew Markel discusses hoses and the necessity for several of them to route fluids to all parts of the vehicle due to the growing efficiency of engines. Sponsored by Dayco.
The majority of cooling systems on the roads react to what is happening inside the combustion chamber. After the engine is stressed, the heat causes the thermostat to open. Increases in temperatures will also cause the cooling fans to come on. The heat carried by the coolant is the trigger for operation of the fans and thermostat.
Given the advanced state of internal combustion engine technology, some recent cooling system innovations will actually increase engine torque and fuel economy while reducing exhaust emissions. Let me simplify that idea: new cooling system technology will make engines run better and cleaner. So, let’s get on the same page by reviewing some basics.
Reading engineering papers tends to be a boring exercise, but they do give a technician like myself a new perspective on how a common automotive cooling system could actually be improved. Of course, our immediate thought is how the cooling system can keep the engine cooler. Not so, according to one paper.
Two specifications can be used to justify replacement — the condition of the additive package & the freezing point.
It is estimated that by 2022, 50% or more of vehicles sold in the U.S. will have one or more turbochargers under the hood.
One bad hose can cause an engine malfunction. This video is sponsored by Continental.
There are three types of power-steering systems today. This video is sponsored by The Group Training Academy.