7 Signs of Low Differential Fluid Causes and Fixes, Which are the Common Rear Differential Leak Symptoms In a Car How to Diagnose and Fix. The most common reason You'll find that Your Jeep Wrangler's front differential springs a leak is deteriorated quality in the seals. The root cause of the issue is the rear differential vent on top of the assembly. I love applying my knowledge to help our readers repair their own cars or at least, helping them make good decisions when sending their cars in for repair. Rear differential leaks are the culprit, either at the axle seals, the pinion seal (where the driveshaft attaches), or the rear differential cover. 11. The pinion seal, made of rubber, can also wear out and develop leaks at the front of the differential where the yoke attaches to the driveshaft. Avoid locking the differential when driving in conditions that require a lot of traction, such as on dry roads. Fixing an axle seal can cost anywhere from $150 to several hundred dollars, depending on the make and model of your car. Why Is My Rear Differential Leaking? | Truck of Mine 7 Bad Rear Differential Symptoms; What Causes it? Remove the wheel and tire from the axle with the leaky differential output shaft with an impact wrench or a star wrench, then set the wheel aside for now. For this reason, youll need to lift the car using a hydraulic lift or jack stands. Another symptom is that your car will vibrate when you drive at high speeds. Attached is a picture of my discovery. Install a new gasket to the differential case. Install the differential seal. I posted over a year ago on this thread after my 2010 X3 front Diff failed in the middle of nowhere "X3 Front Diff failure due to oil leaks". This differential comes in handy when one tire is stuck in the mud, snow, or even the air. Leaks can be caused by various factors, including wear and tear, damage from debris, or rust. Because the rear differential is packaged with a magnetic coupler the problem can often be misdiagnosed. This type of leak may not be visible right away. . 7 Causes of A Rear Differential Leak - How To Fix It & Leak Repair Cost This will help to temporarily stop the flow of oil until you can get the car to a mechanic. The differential is also very helpful during slippery weather conditions, helping your car gain more traction and grip. If the leak is significant or your vehicle has not been regularly maintained, you may need to have the differential fluid replaced more frequently. Open the drain stopper briefly to let a small amount of fluid drain into a small tray to make the situation even more evident. If the front differential leak results in the differential running low on fluid, the front end of the automobile may make a roaring, growling, or screeching noise. To understand your differential maintenance requirements and frequency, consult your owner's manual. Your vehicles lubricant will be depleted as a result of a front diff leak. Therefore, it is necessary to get the replacements done immediately. Theyll be able to tell you if your cars differential output seal needs to be replaced. The differential is a part that can be found in every car and is intended to make up for the distance between the front and rear wheels as a car rounds a corner. Answer (1 of 6): I would say pretty serious depending on the vehicle. For information on the specifications and frequency of differential maintenance, consult your owners manual. Any strange noises should be investigated by a qualified specialist to ensure that the issue has been properly fixed. If you suspect that your side seals are leaking, you should replace them as soon as possible to prevent further damage. These tools have been tried and tested by our team, they are ideal for fixing your car at home.

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