any advice on a 1999 s80 t6 that runs rough with a cold start only. otherwise the car runs fine. on starting up after sitting for more than 8 hours, the engine idles at 200 rpms and nearly stalls unless i depress the gas pedal and it runs a little rough with hesitation until it warms up.

I HAVE A 1999 S80 WITH 63,000 MILES. RECENTLY I HEAR A MOANING SOUND WHEN DRIVING AND ACCELERATING IN ALL GEARS. THERE IS NO SMOKE COMING FROM THE EXHAUST, THE CAR SHIFTS SMOOTHLY AND I HAVE CHECKED ALL OF THE VACUUM HOSES. DOES THIS SOUND LIKE AN EARLY TURBOCHARGER FAILURE? DOES ANYONE KNOW WHERE T...