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Old Oct 10th, 2019, 23:26   #10
GSTheo119
XC90 tinkerer
 

Last Online: Oct 27th, 2022 23:08
Join Date: Feb 2016
Location: Twickenham
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Quote:
Originally Posted by Clan View Post
They used a metal plug after 2004 which gives no problem , the original was a rubber plug . What happens is that excessive crankcase breather pressure blows the plug out , so keep an eye on the breather system if you have a pre 2005 engine . When they go they go , the plug pops out and you have the engine blowing oily crankcase fumes and oil out behind the flywheel . When you buy a new plug you get the metal one now ...
This seems important if not crucial preventative maintenance, any guidance for checking/keeping this clear? found an old thread but none the wiser.
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