View Single Post
Old May 18th, 2018, 01:33   #6
oragex
Premier Member
 
oragex's Avatar
 

Last Online: Jul 26th, 2021 22:24
Join Date: Jun 2013
Location: Coldnada
Default

I have limited knowledge on O2 sensor, but one thing I remember is that is mostly used by the engine when there is acceleration. At steady rpm the engine would not need it to adjust the mixture.

As for the pcv, I would not delay and replace it by now. These typically fail at these miles, and it's better not to wait until they fail - this time it needs a new intake gasket around $20 at Volvo. I only replaced the box itself on my non turbo as the hoses were all in good condition (yet another video on the subject) https://www.youtube.com/watch?v=rRecTJnTJKc

When I removed the tb, I also did reuse the old gasket but coated it on both sides with some O2 safe rtv just to be sure.

Mind you, the manual transmissions fails at the slave cylinder anywhere around your mileage, not sure if this could be related to an idle drop when switching to neutral ? But normally, it starts with loosing some brake fluid https://www.volvoforums.org.uk/archi.../t-131170.html
__________________
Several Volvo Repair Videos https://www.youtube.com/playlist?lis...ECTts0FSVSOT_c
oragex is offline   Reply With Quote