Oil leak from rear of engine

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Black B15
Posts: 155
Joined: Sat Apr 21, 2012 11:55 am

Oil leak from rear of engine

Postby Black B15 » Thu May 07, 2020 1:59 am

I have a mystery oil leak, and I am thinking it is coming from the rear of the motor as that is the only place I cannot see.

Just wanted to see if there was any well known issues that I should be looking for here.

I did see a few folks having an issue with the oil cooler o ring at the rear of the engine?

Just thought I would check here first to see if I could save myself some time.

Thanks all!

Edit: I just found a YouTube video of a guy who had the entire oil cooler pulled out, and this certainly appears to be the issue. I can’t get under the car at the moment, but that oil pressure sending unit is wet with oil splatter, yet doesn’t seem to be leaking itself. I am thinking it must be that oil cooler gasket leaking above the sending unit.

Next question: How hard is it to change out? I have done rack and pinion replacements, full suspension upgrades, full exhaust changes, etc...so I assume this is doable too.

Please let me know your thoughts.

Posts: 62
Joined: Fri Sep 21, 2007 6:55 pm
Car: na

Re: Oil leak from rear of engine

Postby worldbikr » Sun May 17, 2020 9:18 pm

I had an oil cooler oring leak in my 2008. Had fixed long ago. I'm at 307k now and just burn a little oil.

Posts: 729
Joined: Sun May 02, 2010 2:55 pm
Car: 2004 Nissan Pathfinder SE
2008.5 Mazda Mazdaspeed 3

Re: Oil leak from rear of engine

Postby 04pathse » Sun May 17, 2020 10:30 pm

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