I think I have finally resolved this problem and wanted to post what I found in case someone finds this with the same or similar problem in the future. I want to thank everyone for their help. When it came down to it it was this post that was identical to my problem and sent me on my way to a resolu...

Sounds like you are going to have to replace the window regulator unit. I had to do this on my 01 a couple of months ago and it is easy.. expensive but easy. I actually found the part for around $140 for my car. I thought it might have been the motor so I took the regulator out of another door and s...

Thanks VCA.. can you or someone with an online manual post pictures of the location of the wastegate... I know where the TCV is as you have described it... can't remove the air filter without dealing with it. What do I do to check the TCV?

Recently my 2001 Volvo S40 T1.90 has been throwing codes PO171 and PO236. Today I cleaned the MAF with CRC MAF cleaner. When I first took the car out for a test drive it was running like I have never seen it run before (great). Then I tried WOT at 50mph to test a passing situation. The car kept hesi...