on my 01 it sounded like the turbo was sqwueling like a bearing sounds when it goes bad. so i checked it out and it turned out to be a exhaust leak i lost two bolts and two spacers that hold the exhaust manifold on and a third one was on its way it was way loose so i retorqued all of them and replaced the two missing and now no more sqwueling.
a lot of you probably know this but i guess that is common on 2nd gen 24valves so check them atleast every month ill do it every week those bolts and spacers are not cheap.

lunk's Sig:

04 dodge dually 6" assie stacks, gauges, b&w gooseneck hitch, leveling kit, air bags, chip, boost fueler, cold air intake, and 9' 6" western V plow
01 dodge 2500 3" lift, 35" bfg's, smoked headlights and tail lights, recon smoked clearance lights, 03-07 style adjustable track bar with adapter plate, goose neck, and a 8' western plow

Does your 01 have the small pieces of steel that hold the heads of the bolts? Thought about retorquing mine but I'm not quite sure if it would do more harm than good to take those straps off and torque it again...

Bosshogg's Sig:

02.5 2500 4X4 reg cab white HO 6spd. Edge comp, TST comp, and Bosch RV 275 sticks. Stacks by me to roll the coal. Walbro lift pump/filter big line setup, Multi function shifter stick, Solenoid High Idle. LED's All over it
Black smoke is just advertised horsepower!!!
Special thanks to J&J Performance 937-673-6458

Mine did the same thing with 2 of the bolts. Thanks to a awsome DB member he sent me 2 bolts for free.

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Diesel Dawgs Performance

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Expandit Exhaust Specials

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no i didnt have the metal straps but my 04 does so you shouldn't have to worry about yours loosening up

make sure you get it hot then retorque them, i check mine every service to make sure my are tight, seen many of them missing thru the years

coyropin's Sig:

01 3500 dodge 24 v cummins, GD Stage 5 150 hp injectors, GD turbo stage 3, 16cfm exhaust 14cfm intake, AFE intake, Edge 5 stage chip, DD 12 button south bend clutch,#2 vp44 pump fass fuel ddp, dual 5 in exhaust stacks flat bed