hi, i have a 2007 volvo t5...i took it out for a drive today and first noticed what seemed to be surging below 15 mph....when i got on the hwy and went to hit it, nothing, no turbo, all engine....periodically i would be able to get to turbo to work but it would die after about two seconds...no engine lights, no nothing...any ideas?

 

What have you checked?