![]() We wrote a lot of articles on automatic transmissions on, and we usually have one thing to say when it comes to automatic transmissions CHANGE the fluid regularly. Bearings in the transfer case also have a finite life span which is why they need to be replaced as soon as they start giving out symptoms of wear. Seals and gaskets should be replaced on a regular interval, do not wait on leaks to remind you that a transfer case gasket needs replacement. ![]() This can lead to transfer case problems or fluid leaks. Rust and age-related damageĭue to the positioning of the transfer case, the accumulation of dirt and salt eventually lead to rusting and other environmental damage. We have heard a dozen stories of big transfer case problems after repairs. Transfer cases are extremely fine-tuned devices, meaning only a professional that knows what he is doing should be executing repairs. Trusting a non-professional to open up your transfer case and do repairs is like trusting a knee operation to a bartender. Overheating usually comes as a result of low transfer case fluid and overuse. Overheating will wreck all the seals, gaskets and bearings inside the transfer case. Just like with an automatic transmission or a differential, overheating the transfer case is an event you want to avoid at all costs. Your transfer case might also get damaged in a car accident. Dropping or hitting the transfer case during repairs can be just as dangerous. Any hard impact to the transfer case can lead to catastrophic damage of the transfer case. If you actually use your vehicle off-road, there is a chance that your transfer case gets “beaten up” as you climb over rocks or roots. Why do transfer cases fail or malfunction?īefore we get deep into the signs and symptoms of a bad transfer case, let look at why they fail in the first place. With certain AWD systems, you still have the ability to switch to 2WD mode with a click of a button or by switching a lever. This is an amazing system for driving in icy, rainy, and slippery conditions. All Subaru vehicles come with the Symmetrical AWD system. All-wheel-drive transfer caseĪll-wheel-drive cars or AWD cars have the ability to transfer the engine’s power to all four wheels constantly. Having the freedom to do both efficiently is the reason why there are so many four-wheel-drive vehicles on the market today. However, vehicles with such a transfer case are still incredible off-roaders. Having the option of selecting a two-wheel-drive mode improves the vehicle’s economy in day-to-day driving. This allows the 4WD cars to switch between 2WD mode or 4WD mode. This transfer case in a four-wheel-drive sends the engine power to the front and the back axle. This is where the difference in the transfer cases comes along as well. What types of transfer cases exist? Four-wheel drive vs All-wheel DriveĪs you might have noticed in car commercials or during your purchasing journey, some cars have four-wheel-drive and others have all-wheel-drive. However, if your car is a newer model, it probably has an electronic system that controls the transfer case by analyzing driving conditions. Depending on your vehicle’s configuration, you must either operate a lever to engage the desired gear ratio or in the case of automatic vehicles the transfer case modes are activated by a simple push of a button. ![]() Put simply, you control the gears of the transfer case so that your vehicle’s all-wheel-drive functions adapt to the situation. While the “low range” gears are useful when you tackle steep slopes or obstacles that require maximum caution and low speed. The “normal” function corresponds to the “high range” gears which are the ones used in normal road conditions such as driving on the highway. ![]() The transfer case works on the same principle as a differential and offers two gear modes. A transfer case allows the driver of both automatic and manual cars to choose between 4WD mode and 2WD mode. Without a working transfer case, 4×4 mode cannot be activated. It is linked to the gearbox, which allows the driver to engage 4×4 mode by efficiently distributing engine power between the rear and front axles/wheels. What exactly is a transfer case and why do you have one?Ī transfer case is a mechanical module that is installed exclusively in 4WD vehicles. ![]()
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