Vacuum hose destinations on 2001 V70 T5

wedgeweasel · Post by **wedgeweasel** » 25 Jul 2011, 20:53

I looked to find if this had been covered in this forum, but have been unable to find what I need. I have a 2001 V70 T5 auto that I have just replaced the engine. Everything is connected except 4 vacuum hoses that I was stupid enough not to write down the locations for before I started this job. They are all small hoses, less than 0.25" diameter inside, and I have a small valve with 3 hoses on it, labelled red, yellow & green (small color bands around each tube) with a 2 pin electrical connector on it - and the 1 from the right hand (rear) side of the inlet manifold that seems to go back to the turbo. Correspondingly, I have 2 hose spigots on the low pressure side of the turbo hard plastic hose (between the turbo inlet and air filter) and 2 on the turbo itself - one on the top (seems to be the wastegate activator) and one buried underneath coming from the turbo body. Can anybody help me with this? I have even scoured local advertisements for T5's for sale and have looked at an 04 S60 T5 and an 01 2.4 turbo but they are different. Mark.

Post by **jimmy57** » 25 Jul 2011, 22:15

the 3 hose electric valve is the turbo control valve and If you search I'm pretty sure there is a diagram that will show. one hose goes on one of the inlet hose nipples, one to wastegate actuator, and the last to the nipple on turbo outlet "neck".
The inlet hose will have the heated nipple that is 1/2 or a bit larger and a 1/4 nipple next to it and those are near the turbo end.
The turbo control valve nipple is closer to the MAF sensor end of hose and I don't recall that year range having another nipple. Earlier cars had a second nipple near MAF end for a fuel pressure regulator vent (98's anyway) .

Post by **DGM** » 26 Jul 2011, 04:39

This video is explaining hose routing and TCV ports identification (colors).

http://www.youtube.com/user/IpdVolvo#p/u/40/ShldMVI2_cI

wedgeweasel · Post by **wedgeweasel** » 26 Jul 2011, 12:22

Thanks for all the help, the only hose that I need to find where it goes now is the relief valve on the turbo (blow-off valve). Is this the one that goes to the inlet manifold? Thanks again for the 2 replies. Mark.

Post by **jimmy57** » 26 Jul 2011, 12:50

Isn't that the nipple on #5 cylinder end of intake that faces the engine?

Post by **DGM** » 26 Jul 2011, 18:00

CBV goes to a full vaccum source.

http://forums.swedespeed.com/showthread ... &p=1692056

Look at the blue vaccum line label in black near the white T fitting / center left. You should have similar arrangement

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