I have an '08 XC90 V8 and I started noticing over the past few months that the transmission seems to "lag" under acceleration. If I am in any gear above 1st and the engine is below 2000 rpm, the engine will accelerate to about 2500 rpm with what seems like only partial power, then "lag" down to about 2000 rpm (no change in throttle input), and then from 2000 rpm will accelerate like normal with the full amount of power. This happens anywhere from 25% throttle to my foot all the way down. I fear the transmission is about to go bad. Any knowledge on what this might be and any possible solutions? Ill try and post a video in the next couple days of this happening.