Car has had a rough idle and the exhaust has a weird resonant noise during acceleration for a while and finally decided to have a look into it!
I was looking for the vacuum lines and tested them to make sure they're ok, they seem to be, but I spotted my air intake has a lot of oil residue after the turbo!
After a brief panic I started pulling pipes off to see what it originated, thankfully it appears to be before the turbo; it's coming from the PCV!
I pulled the pipe from the crank case and struck up the car, low and behold, lots of oily vapour! I attached a video so you can see... No I didn't I can't upload a video, picture of the leak instead!
Now, I thought that a pcv valve controlled the ventilation at idle, to prevent exactly the issue I have? Does the XE have a proper pcv, or is it literally a pipe off the top of the head?
Also, I pulled the MAP sensor and cleaned it with carb cleaner, took it for a test drive and took off like a rocket; something don't ever recall my car doing! So I think I might have found a cause of many problems.
So, do the cars have a proper PCV?
Do I try and pull the parts off the head and have a look?
Do I just fit a catch tank and plead ignorant?
Obviously, once the problem is resolved, I have the joyous task of cleaning the intake and intercooler...
Thank you in advance!
Engine, Exhaust, Drivetrain, ECU Faults and Fixes