2009 XC70 T6, lazy start, with audio!

[AngryTinMan]

All, this is hardly the first time we've had problems with our 2009 XC70 T6. It's spent 64 days in the shop during it's warranty period (29 during the first year, just missing the lemon law by one day in our state). We bought it new from the dealer with 3 miles on it. The only engine/mechanical problem we've had is an oil induction hose that was leaking and replaced in the warranty period. All of the other warranty problems have been convenience problems.

For about two months now, in the morning, it has a slow start. It'll crank right away with the same amount of power as always, but take about 4-5 seconds to catch and start. During the warranty period, we had this happen, and brought it to the dealer, it stayed overnight, and they had no problem with it starting. No problem found, bring it back if it happens again. It never happened again.

I made an audio clip and saved to my google drive. Here's the link:

https://drive.google.com/file/d/0B0ZRLq ... sp=sharing

This morning, it didn't catch the first time during this process, and the second push of the start button it started right away, but ran really rough for about 30 seconds, like sputtering. It did have a 600CCA battery installed, and didn't help this lazy start problem.

When started again on the same day, it has no problem. Over night without driving (for about 14 hours) is when it has the problem in the morning. We're about 20%-50% RH during the year, and at 6200ft in altitude if that helps at all.

Any ideas?