Well... checked hoses on the top side- all nice and tight. Climbed underneath and the turbo hose on the driver's side coming off the intercooler was off at the junction with the up-tube. Had it in a week ago for the radiator replacement and wonder if they hadn't completely tightened it. Tightened it up and now I have boost again!! And don't need to tow it to the dealer. May get some new hose clamps at least to carry as a spare...

Thanks for the suggestions above...