Driver side rear seal keeps leaking

Tiny
MARK MORRISON
  • MEMBER
  • 2004 CHEVROLET BLAZER
  • 2WD
  • AUTOMATIC
  • 15,000 MILES
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?
Sunday, September 26th, 2021 AT 10:23 AM

1 Reply

Tiny
KASEKENNY
  • 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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Sunday, September 26th, 2021 AT 11:29 AM

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