Join Date: Sep 2006
Location: Austin, TX
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To see if your turbo is bad... (I used to build turbochargers for a living)
WITH THE ENGINE OFF, AND PREFERABLY NOT HOT...
Take the air inlet tube off the turbocharger...
Look inside the turbocharger at the wheel. Look for any signs of damage or the wheel rubbing the housing. Grab the nut that holds the wheel with your fingers and spin the wheel, try to move it side to side, as well as in & out. The wheel should spin freely and there should be only a minimal (almost nonexistant) amount of play side to side, and none front to back. If you feel ANY excessive play...then your turbocharger needs a rebuild.
Usually a rebuild (replacing soft parts) costs around ~$300.
Let me know if you need any assistance.