I have had my 2015 XJL for 7 years now. It's an amazing automobile, my 1st non-American built automobile, I am a former General Motors employee
The car is a rocket, I have had no major issues with it, and it is a pleasure to drive.
I need to replace the 2 PVC valves that are located on the passenger side of the motor towards the firewall,
The access to remove them is minimal because of the 2 vacuum hoses that are on top of them and the clearance to the super charger, V8
Anyone who knows this situation knows what I am talking about
I am very mechanically inclined and would have no issue replacing them if I could get at them
The replacement PVC's are readily available, my local Jag dealer wants to charge me $950.00 USA dollars to replace them and an additional $175.00 for the 2 PVC's which is outrageous, and that is if they don't have to remove the super charger to get at them.
I have already purchased the 2 PVC's for $30.00 and need some guidance on how to get them out
So hard to believe that the Jag Engineers didn't do a better job on accessibility
Any information would be very much appreciated

 

That is an outrageous price. Some of our members have been able to replace these without removing the supercharger by using an angled pick to gently pry the retaining clips on the PCV cap away from the valve cover. You seem more than capable of doing this yourself.

 

As Jaaag-Driver says, you pry up the plastic tabs on the cover (don't worry about breaking them). I used an angled pick. Then pull the cover off, pull out the orange diaphragm and the spring.

To fit the new ones, slide in the new diaphragm and spring. Then, using a steel ruler, hold the spring down and slide the new cover in. Finally, using the ruler again, push down on the cover until all the clips engage.

wombat

Here is a video of a guy doing the job on a V6, but it gives you an idea of what is involved.
P.S Credit goes to Club for coming up with the idea of using a steel ruler

 

I have changed a few of these using the steel ruler method but recently I read that you can start the engine after fitting the diaphragms and the engine suction will hold them down while you fit the cap.

That makes sense to me but have not tried it.

 

I also used the steel ruler to help with the install of the springs. I must say I stole that idea from someone else! So no credit to me! Sorry but I forgot where I read that tip. Whoever came up with it I do thank them.

But be warned with the SC on it is NOT an easy repair!
Here my thread with pictures and it is possible to do.
Replace PCV Diaphragms

Note one thing I did not know is the springs are different lengths. You have a short one and a long one. When I changed mine I thought both springs were the same length. Does it make a difference? I don't know as I did not look at that. So far thousands of miles with no problems. Maybe I got them installed in the correct order?
But do check your old ones. Live and learn I guess.





I installed the improved aftermarket diaphragms so hoping they will last longer than the OEM ones.
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