Driver side rear seal keeps leaking

2004 CHEVROLET BLAZER

15,000 MILES • 2WD • AUTOMATIC

MARK MORRISON

MEMBER
1 POST

I have replaced the driver side rear seal three times now but it still keeps leaking. Now there is a clunking noose from that side of the vehicle. could anyone here help me fix this?

Sep 26, 2021 at 10:23 AM

KASEKENNY

✓ASE Certified Mechanic
18,907 POSTS

It is unlikely that there is an installation issue but I am attaching some info that will help with running through just to make sure you are not missing anything.

https://www.2carpros.com/articles/crankshaft-main-seal-replacement-rear

Next, I would suggest checking the compression just to make sure it is not low as you could have some blow by that is causing excess pressure in the oiling system.

Normally this causes some other issues but it very well could just keep pushing this seal out.

https://www.2carpros.com/articles/how-to-test-engine-compression

Let's run through this info and let us know what you find. Below you will find the info from the manual that will help as well. Thanks

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Sep 26, 2021 at 11:29 AM