- Actually, even for VVT cars, all the TB cares is its relationship between CRANK and CAM sprockets. In other words, despite what VIDA and Volvo said in their repair book, when it is all done, as long as the TB lines up with the CRANK marks and CAM marks, you are good. - So, yes, release the tension...

DIY: 2007 Volvo S60 VVT Hub & Cam Seals x 4 (or any P2 XC90, S80 2.5T, and 2.4 engines) - The issue of FRONT cam seals leak has been discussed too many times in different forums. After doing this job, you will understand why dealers charge $1000+ for this job, read on… - I am working on a 2007 ...

It sounds like you are quite advanced DIY. Respect to you for doing all the work. My guess is that your timing .arks are off. At this point I would suggest to get cam holder tool($45 on amazon) and do this job correctly. You can put crankshaft into tdc using marks without using special crankshaft ho...

Another note. I hear a noise at that's always been there since I bought the car used about 5 years and 40k miles ago. I wondering if it's the idler bearing? It looks worn. Like it wasn't replaced when they did the timing belt. Timing belt looks good. Tensioner seems to hold tension. Thanks, Chris W...