First time post si hope I am where I should be...
i have a 2011 s80 and it has begun “chugging” as I begin to accelerate. Before I take into dealer I was hoping someone might give me some insight regarding what might be going On.
thanks

 

any other info? 1) Do you have a check engine light on? If so, have the codes read and post them up. 2) Does it do this all the time or only when cold (or only when warm...)? 3) How many miles/ engine model?