SwedeSpeed - Volvo Performance Forum banner

1 - 4 of 4 Posts

·
Registered
Joined
·
30 Posts
Discussion Starter · #1 ·
Hi guys - can someone please let me know what this hose is for? It's cracked on my vehicle around where it connects to the engine and i'm just trying to work out how critical it is as it was recently serviced and the mechanic didn't say a thing about it. Thanks very much in advance.

 

·
Registered
Joined
·
253 Posts
It is for your manifold vaccum, you have a vaccum leak and should throw off some codes for unmetered air depending on how big it is. Have it replaced, unless you want to DIY. Not as serious as a PCV hose leaking though.


Sent from my iPhone using Tapatalk
 

·
Registered
Joined
·
30 Posts
Discussion Starter · #3 ·
I've recently (very occasionally) had a rough start to the point where it will stall. But other times starts perfectly, could this be contributing to that?
 

·
Registered
Joined
·
253 Posts
Yes, as there is air that wasn't accounted by the MAF sensor entering the system, so the mixture leans out and the engine may run roughly and/or stall.


Sent from my iPhone using Tapatalk
 
1 - 4 of 4 Posts
Top