Just want to double check, you installed a quality, entire unit PCV? If so, first I would do is double check your work. That the bolts are snug and gasket in place. I’ve talked to a few people who had theirs loose after installation.

BTW, what’s your maintenance history and mileage. You don’t have it listed. Why did you change the PCV in the first place?

Just an FYI, on the driver’s side, on the head of the engine, is a vacuum pump for the brake booster.

 

Just want to double check, you installed a quality, entire unit PCV? If so, first I would do is double check your work. That the bolts are snug and gasket in place. I’ve talked to a few people who had theirs loose after installation.

BTW, what’s your maintenance history and mileage. You don’t have it listed. Why did you change the PCV in the first place?

Just an FYI, on the driver’s side, on the head of the engine, is a vacuum pump for the brake booster.

2013 120k. I replaced it because it looked like there was a little leak on the gasket on the passenger side. I installed the entire unit with the PCV already there. I’ve change the gasket on that brake booster vacuum pump before because it was leaking. I will double check, I was not able to find the torque spec for all of those bolts so maybe it’s not tight enough?

 

Not certain what you're asking about because with the oil cap removed yes indeed there would be a gross vacuum leak, the system is made to be sealed.

 

Yup. But regarding a hissing noise, if the PCV bolts are snug, vacuum pump has already been resealed (& no air leaks to hose), it could be the power steering pump, loose intake tubes, could be an alternator bearing, A/C compressor…or it’s time for the serpentine/cooling system service. I asked about the maintenance and a major service was not mentioned.

Could be time to read-up about the maintenance and when to do it.

The 3.2L (B6324S) Engine: The Good, the Bad, and the...

I figure we could get a 3.2L thread going. I'll kick it off, but hope others can add to it. I've only had my 2011 for a year now, but I've read as much as I could in VIDA and elsewhere. A great debt of thanks goes to Swedespeed forum members who have helped me out over the past year. If you've...

www.swedespeed.com

 

Not sure if it is the same on the xc90 as it is on the p80 and p2's, but I had a leak a few years back on an s70, right after I did it. The intake manifold gasket wasn't perfectly lined up and there was a tiny leak. Light mist some soap water near the intake manifold gasket, see if it bubbles, use a flash light if it is hard to see.

 

Not sure if it is the same on the xc90 as it is on the p80 and p2's, but I had a leak a few years back on an s70, right after I did it. The intake manifold gasket wasn't perfectly lined up and there was a tiny leak. Light mist some soap water near the intake manifold gasket, see if it bubbles, use a flash light if it is hard to see.

I’ll replace the intake gasket when I do the alternator soon [emoji23]

 

It does leave drops here and there. Sometimes it's worse, sometimes nothing happens at all. It's not gushing out in an alarming rate, just enough to be irritating cause the underside of the car gets all greasy.

 

Some day, if the opportunity presents itself, I'll have to try it. Never too late to learn something new!

 

Some day, if the opportunity presents itself, I'll have to try it. Never too late to learn something new!

Are you sure?

I know you J.

Hah hah.....

 

I guess all the jokester’s are in the xc90 group.

Good luck figuring it out.

Maybe John C can add his expertise.