I have a 2000 S70 with only 70,000 miles on it everything runs fine in the car but when i get to a constant speed the car seems to pulsate and drag, the pulsating stops when you either accelerate or let go of the gas. Do you have any idea what could be the problem?

 

Is your PCV system in good shape? Sounds like a vacuum problem to me.

 

Ya it might be an oil leak or something because when i checked the oil like 2 or 3 weeks ago it was lower then it is now by a drastic amount.. i will have to look into it.. this is my first car and i do not know very much about them but i always loved cars especially volvo's and i say it now ill never get anything besides a volvo i love their body style, how they run, everything.. i have a turbo engine the turbo wouldn't have anything to do with it right i dont think so but it could be a factor i have no idea.. it might just be anti freeze in the oil which is not a good sign i'll have to get it looked at somewhere.. all of my money has been going into this car i care about nothing else.. im going to change my oil this weekend and give a good look at my engine try to see what could be wrong.

 

No its not a turbo making it do that. Yea hope you dont have coolant in oil. Goodluck.