PCV hose and EZ-Coils

Post by **erikv11** » 25 Sep 2018, 09:31

That's a larger diameter vacuum line than I have, maybe that's contributing.

BlackBrick · Post by **BlackBrick** » 25 Sep 2018, 13:41

yeah, i heard some say drill out the PTC, and some say go with a larger diameter vacuum hose. Maybe we should only do one or the other? Will reply after this weekend with my result.

These Volvo PCV systems sure keep us busy!!!

BlackBrick · Post by **BlackBrick** » 01 Oct 2018, 21:09

Ok, replaced the PTC, idle issue and code is gone. I had drilled out the bottom of the PTC AND the vacuum hook up. That must have created too much vacuum. Now I just drilled out the bottom of the PTC.

Post by **erikv11** » 02 Oct 2018, 12:14

By vacuum hookup you mean where the 1/4 fuel line connects, right? And are you still using 1/4 line, thanks.

BlackBrick · Post by **BlackBrick** » 02 Oct 2018, 20:55

Yes. The 1/4" fuel line for vacuum from passenger side of manifold to ptc. Inside the plastic hookup (actually 3/8") you can see a pinhole. I did not drill it out this time.

BlackBrick · Post by **BlackBrick** » 28 Oct 2018, 17:27

1 month follow up. Since replacing my clogged pcv system with 5/8" fuel hose, I've gone from burning one quart of oil per month down to 1/4 quart per month. 1997 850 GLT with 195,000 miles. Quite happy with that.