2007 XC90 Expansion Tank

Quigs11 · Post by **Quigs11** » 11 Dec 2018, 17:40

I have a Volvo xc90 with a leaking expansion tank. I found a replacement 30741973 but it only has one nipple connector on the top of the tank and my old tank 30760100 has 2 nipple connectors on top. Can I "T" one hose into the other hose and connect to the nipple connector?

Post by **cn90** » 11 Dec 2018, 21:08

If you are creative enough, then I guess you can do a T to save money since you already have the new reservoir with only 1 nipple.

https://www.ipdusa.com/products/6965/11 ... nsion-tank

: Reservoir.jpg (261.47 KiB) Viewed 886 times

Quigs11 · Post by **Quigs11** » 12 Dec 2018, 08:54

Thanks!

Post by **SuperHerman** » 13 Dec 2018, 19:30

I don't have your year or engine, but on my 2004 T6, I believe one side takes coolant in from the thermostat housing and the other side serves as a vent hose which may run to the radiator (don't recall).

If this is the set up on yours I don't think it will work.

If one hose has liquid flowing in and the other is some sort of vent a single port will cause a conflict.

Start your engine and have a look.