Where is the rear main seal in a car?
Where is the rear main seal in a car? The biggest contributor to the cost of replacing a rear main seal is the location of the seal and therefore the location of the leak. The rear main seal in your vehicle is at the back of the engine and seals the crankshaft as it exits the engine. What causes oil to leak from the rear main seal? On most engines, oil leaks can occur above and below the rear main seal. It could be a leaking oil pressure sensor, oil pan gasket or galley plug near the seal that causes...