This is what happend next. I GOT BOOST. It is intermittant but about half the time now the turbo actually supplies some boost! Looks like it is impossible to kill one of these turbos. If I could get dependable boost from 10-50 I'd be very happy. Apparently the impeller can still spin, but just gets hung up, or needs a little extra to get spinning. Still plan on replacing the turbo, but the car is more driveable now. Should I just keep driving and see if it improves?

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Muleears
'07 E320 Bluetec 133K my DD
'04 Jaguar XJ8 VDP, 34K
'10 Hyundai Accent 60K Grocery Getter
'02 VW Golf soon to be on the road again
'97 E300 Diesel Son's DD
'61 VERY tolerant wife

Hampton Roads, VA USA

Gone but not forgotten:
'67 250S 95K
'86 300SDL
'87 300D Turbo, 364K! R.I.P.
'98 E300 Turbodiesel, 213K
'02 S420, 164K
'01 Prius 138K