How can you tell if a rear main seal is leaking?

How can you tell if a rear main seal is leaking?

The best way to prove that you’ve got a rear main seal leak is the check if the engine side of the flexplate or flywheel is oily. If the rear main seal is leaking on your engine it will drip oil onto the flexplate or flywheel and sling oil around the bellhousing.

What should it cost to repair a rear axle seal?

Fixing an axle seal can cost anywhere from $150 to several hundred dollars, depending on the make and model of your car. If you detect a leak it’s better to fix it sooner rather than later, as ruining your transmission is an expensive repair.

Why do I have a leaking rear main seal?

the crankshaft is able to move excessively inside the bearings which will stretch and move the rear main seal while

  • Clogged or blocked PCV system. Most rear main seals have a lip that rides on the shaft.
  • Engine oil condition.
  • Crankshaft condition.
  • Misalignment issues.
  • Seal coating.

    What does a rear main seal leak cost to repair?

    Replacing a rear main seal is absolutely one of the most dreaded, most labor-intensive and expensive jobs you can do on your car next to replacing the head gaskets or rebuilding your transmission. It can easily cost you from $800 to $1,200 at a mechanic. In addition, there are no shortcuts or quick fixes if the seal has expired.

    What could cause a rear main seal to leak?

    Rear main seal leak causes Worn main bearings. If your vehicle has worn main bearings, the crankshaft is able to move excessively inside the bearings which will stretch and move the rear main seal while Clogged or blocked PCV system. Most rear main seals have a lip that rides on the shaft. Engine oil condition. Crankshaft condition. Misalignment issues. Seal coating.

    What does a leak in the rear main seal mean?

    A rear main seal leak is among the worst things that can happen to any vehicle because the rear main seal is very hard to reach and it requires much of your engine to be disassembled. On most modern engines, the seal’s failure is due to a condition inside the engine or a component connected to the back of the engine, and is most common in older cars.

    How do you fix a rear seal leak?

    The best way to fix a leaking rear main seal is to recondition the seal that’s currently in your vehicle. Adding BlueDevil Rear Main Sealer to your engine oil will allow your rear main seal to be reconditioned as you drive your vehicle in 2 days or less.