95 XJ PVC valve?

[Mikel]

Hi,
I have a 95 XJ with the 4.0 engine and 135K miles. It burns about 1qt of oil every 1000 miles, but there isn't the slightest trace of blue smoke or funny smells. I had an Eclipse that burnt exactly that same amount of oil, and it would smoke pretty bad during start up and a bit during idle. I found some oil in the air filter, so I suspect the PCV valve might be causing this, but I can't find it. I just see a rubber grommet on the valve cover, and a hose going from the grommet to the air filter. Is the PCV valve under the grommet, or am I missing something?
Thank you.
Mikel

 

[xj92]

There is no PCV valve on the 4.0 engine. The oil in the air filter is solved by removing the valve cover and giving it a thorough cleaning. Not sure where your oil is going.

 

[AZ Jeff]

As others have pointed out, you have no PCV valve on the 4.0.

I suggest you perform a compression test, and/or a vacuum test on the engine. I would be looking for leaky rings, or bad valve seals. Those two tests would narrow it down real quick.....

 

[Mikel]

Hi,
I had a closer look, and the rubber fitting on the rear hose (that goes from the valve cover to the intake manifold) was cracked and some oil was dripping. I replaced the fitting and I'll keep my fingers crossed!
Thanks,
Mikel

 

[Mikel]

As far far as blow by is concerned, pinching the big hose going to the air cleaner, and with the hose removed from the rear one, I can see some mist/smoke coming out at the same rate a smoker would exhale cigarrette smoke slowly (at idle). I'm sorry, I can't give you a more accurate description. Would this be normal?