How do you change a rear main seal on a transmission?
Let’s Get Started!
- Disconnect the Battery.
- Remove the Exhaust System.
- Remove the Driveshaft or CV Axles.
- Remove the Transmission.
- Remove the Flywheel or Flex Plate.
- Remove the Rear Main Seal Housing Bolts.
- Remove the Rear Main Crankshaft Seal.
- Match the New Rear Crankshaft Seal.
What causes a rear main seal to fail?
Excessive heat, old age, high mileage, infrequent use, and worn bearings can also be factors contributing to rear main seal failure.
How to replace a rear main seal without removing the transmission?
As primarily discussed in this article, the usual first step in replacing the rear main seal is the removal of the transmission. And not only the transmission, the mechanic usually removes the whole engine first. You could just imagine how much time and effort that would take just to replace one thing.
How can I tell the cost of a rear main seal replacement?
This oil shows up under the UV light to see where the rear main seal leak is coming from. Once the issue is diagnosed, the mechanic can then determine where the leak is originating from to estimate the rear main seal replacement cost.
How does the rear main seal work in a car?
The pistons in the engine are all attached to the crank, allowing it to connect to the flywheel and propel the car forwards. The rear main seal works in tandem with the crankshaft and the transmission to ensure that the oil is kept inside of the engine, and doesn’t leak onto the other inner parts of the car.
Is it bad to let a rear main seal leak go?
Spreading oil over your hot exhaust pipe is, most importantly, a fire hazard! It can also but also lead to unpleasant smells and plumes of smoke coming from your engine. Just letting a rear main seal leak go is a poor option, even if you don’t intend on keeping your car for very long.