How to Find and Fix a Rear Engine Oil Leak: Yukon / Tahoe / Silverado / Sierra / Suburban

In this video I show how to locate and repair an oil leak that looks like it's coming from between the rear of an LS engine and the front of its automatic transmission. In this case, this truck had leaking oil cooler lines and I show how to replace the oil cooler line / block-off plate gasket.

NOTE: I do not recommend buying Fel-Pro Gaskets if you have oil cooler lines as the Fel-Pro Gaskets are prone to start leaking prematurely.

To purchase a genuine GM Gasket, click one of the following link:

With Oil Cooler Lines: https://amzn.to/39WVwCB

With Block Off Plate (note: Fel Pro gasket gets better reviews with this application): https://amzn.to/2PiZcH1

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