So, we have a 2006 Nissan Quest van that has had an oil leak for several years now. I replaced the gasket in the rear valve cover about 2 years ago thinking that was where the leak was coming from but it didn't fix the leak and after messing with it then, the leak got worse. The van isn't used much so I just kept throwing oil in it when it was low until I could eventually get to it. Well, this weekend was time to "get to it". I ordered both valve covers front and rear which came with new spark plug seals and gaskets already installed, and the pcv valve already installed, came with new bolts and a new oil filler cap as well. Good thing I got the whole valve cover because I found that both the old covers had been leaking around the spark plug seals and those seals are not replaceable. They are a rubber seal that has a metal ring inside. The front cover was easy to replace but of course the rear was a bit challenging but I've done this before so it wasn't too bad. You have to remove the outer and inner cowling, windshield wipers and motor, a few other things and then remove the intake manifold and then you can access the rear valve cover. So I replaced both covers but haven't put the intake back on yet as I am waiting on a new pcv blow by hose to arrive. I also have a new "O" ring for the oil cooler as this is also a common leaky spot and I have a new serpentine belt and power steering belt to install, change the oil and filter and air filter and hope the oil leak is finally fixed.
I have to admit, I was the cause of the oil leak. Apparently when I installed the gasket in the rear cover all those years ago, it slipped to the inside and I didn't see that it wasn't seated so this thing has been leaking like a sieve!!! Well, ya live and learn. [emoji846]
Here are pics of my progress, pics of the gasket that slipped out, and pics of all the stuff I have yet to install!!!
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