93 850na Vacuum from solenoid

Clivus · Post by **Clivus** » 11 Oct 2023, 19:12

I promise I have searched extensively, and I apologize for this dead horse. I don’t seem to have a port on the side of the intake, nor do I see the V-vis. Is there a vacuum line under the intake? Do I have to pull the intake to get to it? The vacuum line comes out of the solenoid and the rubber hose is rotten. Please see red circled diagram for what I’m looking for.

https://i.imgur.io/mbfRd2a_d.webp?maxwi ... ity=medium

Post by **scot850** » 11 Oct 2023, 23:34

Does it run to the vacuum tree? Can you post a picture of the offending pipe and front of the engine with intake manifold?

Neil.

jmartin919 · Post by **jmartin919** » 12 Oct 2023, 11:29

I have a 93 NA. There's a black rubber hose running to the fuel pressure regulator and a hard plastic hose running under the intake man but I can't see where it goes under there. The other end goes to some kind of valve on the side of the air intake box.

Clivus · Post by **Clivus** » 13 Oct 2023, 17:58

Thanks for the help. Here’s a link to a video of my vacuum.

jmartin919 · Post by **jmartin919** » 14 Oct 2023, 07:43

Can it be rejoined with a rubber coupling?

jmartin919 · Post by **jmartin919** » 14 Oct 2023, 07:46

I'll see if if I can see where that broken end connects on mine.

jmartin919 · Post by **jmartin919** » 14 Oct 2023, 07:52

Have you crawled under the car to see if you see anything? It goes directly under the manifold.

jmartin919 · Post by **jmartin919** » 14 Oct 2023, 15:09

I think it goes to #13 in this parts diagram. It doesn't list the part description but I'm guessing cruise control? Mine changes from the black hard plastic hose to a blue rubber connector but I can't see exactly what it attaches to. Does your cruise control work? https://www.volvopartswebstore.com/show ... veLine=478
Looks tough to get to. Maybe if you pull the fan and shroud.

Clivus · Post by **Clivus** » 15 Oct 2023, 21:39

Thank you guys. I bet it is the cruise. I’ll find it