If it's not repaired soon enough it could potentially damage the drivetrain of your vehicle so badly that it would render it undrivable. When you start noticing this vibration it means that your drive shaft has now gone out of balance and the situation will likely get worse until such time as you are able to get it repaired. Your drive shaft is meant to be very well-balanced which completely eliminates any potential vibrations when it's operating properly. If the U-joint that is part of the drive shaft begins to wear out, or the bushings that are in it fail, the driveshaft will begin to vibrate noticeably in a way that you can feel through the bottom of your vehicle. Vibrations: If you're noticing some intense and unusual vibrations coming from underneath your vehicle it's possible that the drive shaft is the source of the problem. If you have a bad slip yoke in your drive shaft, it can produce clunking noises in your vehicle.Īside from the potential noise you may be hearing when you're accelerating there are a handful of other potential side effects of a bad drive shaft as well. This in and out motion allows it to change length in response to your vehicle's movements along the road. It transfers power from the transfer case to the driveshaft and slides in and out of the transfer case. It is what is known as a splined shaft that is connected to your drive shaft by the universal joint. This is usually the result of trying to tow more than your vehicle is able to pull.īad Slip Yoke: If you've never heard of a slip yoke before, it is a part of your drive shaft. However, if you overtax your drive shaft you can cause that tube to break which will create clunking noises while you're driving. Tube Failure : There's a tube in the centre of your drive shaft that spins along with it. Typically, a drive shaft that is no longer balanced, or if part of it is wearing out, is going to make a noticeable and persistent squeaking sound. It's possible that if this is allowed to go on long enough the drive shaft completely falls out from your vehicle and the sound you hear will be the drive shaft literally scraping on the road under your car. The noise created by this may become more excessive when you're actually braking or turning rather than just accelerating. Loose Drive Shaft: if your U-joints have failed then that is going to cause your drive shaft to come loose as well. When these go bad not only will you experience vibrations, but you're going to be hearing some noticeable grinding sounds when these fail on you. This leads to rattling and scraping sounds when you are driving.īad Bearings : Inside your drive shaft are some rubber bearings that can wear out over time. U-joint Noises : If the problem is with the U-joints in your vehicle, also known as universal joints, it can be a result of them being worn down. If it's more of a knocking sound that is probably a problem with your CV joint. If you're hearing a squeaking even at low speed that picks up pace as you accelerate then that's probably your U-joints which requires some lubrication. ![]() All of this will originate from underneath your car, rather than in the engine compartment. You may also hear sounds that are like a high-pitched squeaking or a scraping noise of metal on metal. Generally speaking, a bad drive shaft is going to create a kind of rattling or clunking sound. When they begin to fail, especially the bushings or bearings that support the driveshaft, as well as the U-joint in the drive shaft, you may end up hearing a handful of different sounds. ![]() ![]() There are a number of components that need to work precisely in time with each other in order for your drive shaft to work properly. It is the drive shaft that connects these two parts together allowing your entire vehicle to move. Without the drive shaft your engine will not be able to transmit the motion that it creates as the pistons rise and fall of the cylinders to the wheels which would allow them to turn. Also known as the propeller shaft, the drive shaft is basically just a long rod that connects the output shaft of your transmission to the rear differential in your rear wheel drive or four-wheel drive vehicle.
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