91 Eco-Diesel turbo whine??

[DAKOTAKIDD]

Hey guys,  Merry Christmas and Happy New Year.  Lately I have noticed that my turbo sounds way louder, and I mean louder by ,a loud whine coming from it.  I can hear it in the car while driving at highway speeds( barely hear it) but its really loud when starting off in the car when the turbo spools up. As I switch gears and let off the gas pedal it goes away and comes right back as soon as I am onto the gas pedal again.  The harder I push it the louder it gets and obviously quiets down when the RPM's are down enough not requiring the turbo.  I lifted the hood and moved the accelerator on the IP and its quite loud and sound like its coming from the turbo/rear of the engine area.

What do you guys think it is?  If its the turbo, can it be rebuilt or am I better off trying to get another one?  Could it possibly be anything else besides the turbo?  Is it ok to drive this way or should I not use it?

Any help would be great.

Thx in advance

[jboogie13]

the only advice i can offer is maybe check the shaft for play before diving into it too far?

[TylerDurden]

Agree.

FWIW, tm53 reports the rebuild place in Ohio does a good job at a good price. http://www.vwdiesel.net/forum/index.php?topic=31392.0

[CRSMP5]

he has exhaust leak...... check turbo to handbreak.... hole in there...

[DAKOTAKIDD]

Hello. Thx for the replies.  As for the hole in the exhaust..,what area are you talking about..turbo to handbrake?  Are u talking around the hand brake area of the exhaust or is that a name for a specific part of the exhaust? 

Let me know

Cheers

[burn_your_money]

The downpipe typically rots out around where the C clips hook up.

[DAKOTAKIDD]

So I had a chance to screw with it today and I pulled the tubing from the turbo and the turbo had minimal play. I have no idea how much it's supposed to have but it hard to judge with such a small opening. I would call it little to no play.  Then I started the car, plugged the exhaust and no major leaks just around the ones I har band aided up for now.   Then I did the stethoscope screwdriver trick and my alternator idler pulley bearing is shot.  I removed the belt and ran the car again and all is quiet like normal.  Ill get a new bearing on the 2nd and  I'm good to go again.   Thx for all your help

Happy New Year