Welcome to MVS. Just wondering what plugs you put in and what gap you used? Our cars hate Platinum plugs, so that could be the issue...also on a '01 S60, I believe the gap is suppose to be 0.028-0.030 inches. Verify both against your owner's manual. Well as I said before,,, it had the problem befor...

My 2001 Volvo S60 T5 runs like shit when I first try to take off, it sputters, low grumbles, kinda jumpy, then after about 10 to 20 seconds its fine and takes off and runs fine. It only does it when the car hasn't be run in a couple of hours. I had just replaced the spark plugs thinking that it migh...