Is Your Differential Whining Too Much?

If your differential is putting up too much of a fuss, you may need to replace the differential fluid. Today’s modern cars and trucks use various lubricants to keep mechanical components in working order. Since many of the parts are made of metal, they need a heavy duty oil or fluid that can protect them from the damage sustained from metal-to-metal contact or overheating. Without adding the proper amount of fluids, the performance or service life of a vehicle is notably impaired.

As noted, one of these lubricants is the differential fluid. This particular liquid is used to lubricate a manual transmission and differentials. Since the fluid is equivalent to engine oil in the role it plays, it is also critical to check it or add to it on a routine basis.

Check Your Car’s Maintenance Schedule

When the differential fluid becomes contaminated or dirty then, it can place the transmission and differentials at risk. This risk can extend to permanent damage. Because all vehicles come with a schedule for maintenance of fluids, you need to adhere to that schedule to avoid major repairs. If a vehicle has surpassed the advised mileage for service then, you need to see a car mechanic without delay.

A Distractive Noise

At this juncture, the old fluid should be changed and replaced with new lubricant to ensure the needed protection. For example, one of the symptoms associated with bad differential fluid is a noisy differential or transmission. If the differential oil becomes dirty or runs low then, it can cause the gears to whine whenever they are turning. The whining sound is caused by a lack of lubrication, and increases in volume whenever you accelerate.

The differential works with the transmission to supply power from the engine to the axle for rotating the wheels. Like engine oil, heat leads to wear on the differential fluid, which, in turn, leads to extra wear on the bearings and gears.

Replacing the Transmission Fluid

As indicated, the differential fluid is just one of the various lubricants that vehicles use when running. You also need transmission fluid to cool and lubricate the inside of a transmission whilst maintaining the required pressure. Whether you have an automatic or manual transmission, the transmission fluid needs to be replaced on a regular basis. Otherwise, the components inside the transmission can overheat, which leads to transmission failure.

Antifreeze

The coolant for the car is the anti-freeze. Using the coolant ensures that the engine will not freeze or overheat. The antifreeze works by eliminating the heat from the engine block, and therefore safeguards the engine and the seals on the water pump.

On four-wheel drive and all-wheel drive vehicles, the transfer case also needs to be checked and fluid level maintained. The transfer case represents the core of a 4×4 or all-wheel drive system. Therefore, it supplies power to both the front and rear differential assemblies, or the assemblies that turn the wheels. The transfer case also enables drivers to switch between gears. Like engine oil or other vehicle lubricants, the fluid in the transfer case breaks down over time. This added wear leads to the eventual need to replace the bearings and gears.

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