I will post what I recall based off my memory for my 2004 XC90 with same engine. Working from the turbo - passenger side - from the diaphragm a short vacuum line goes to hard line hose pipe that runs on the back of the upper part of the engine. This hose rarely fails. From here it starts again with ...

Try this Volvo dealership: https://parts.volvocarsofmarietta.com/ punch in your information and go to the engine section - scroll down and look up both turbo charger and intercooler sub-sections. In the intercooler section - you will find this part number listed: 1275883 - it is called "Overflo...

The bypass was in the central location and they did away with it with the engine revision for 2002 model year. The intake noise was louder, not too bad on S80 but louder on XC90 and the rubber foam lined plastic engine top cover was the sound dampening to address noise. The short version 3.0 T6 engi...

Yes mine shows boost/vacuum number the computer is given via sensor. June

P2 all have an intake pressure sensor. 99-01 it was on the tube from intercooler over to the throttle with an intake temp sensor separate mounted next to it. 2002 brought the temp/pressure sensor stuck into a hole on intercooler right in front of where the tube to throttle connects to the intercoole...