Glossary / Engine

rear main seal

22 Episode Mentions

Too Afraid to Ask

The rear main seal is a part that keeps oil inside the engine. If it breaks, oil can leak out and cause problems.

Technical Definition

The rear main seal is a rubber or synthetic gasket that sits between the engine block and the crankshaft. It prevents oil from leaking out of the rear end of the engine.

Hear It Discussed

"Sure. And I could have left it as most people do, but you know, oh, the rear main seal is leaking. Well, it turns out, let's do the input shaft on the transmission."
It’s Really Jakub, Fat-Shaming Cars, Best Looking Hatch Of All Time | Episode 1,037 Everyday Driver Car Debate 13:03

"Is your rear main seal. Is your rear main seal blown? Or the front seal or the oil pump or the oil pan is leaking."
#2608: Where Engines Never Warm Up The Best of Car Talk 20:03

"I have the 17 equinox with the rear main seal needing replacing any tips or tricks. Fix the problem that caused the rear main seal to leak before replacing the rear main seal."
Car Advice Do You Believe What The Dealer Says and More Under The Hood show 12:05