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#1
10-02-2007, 01:49 PM
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you said it may be boost related so it might be the ARV.
The best way to check this is to have someone (you trust  ) put it in drive and apply the brakes and accelerator while you search for the squeal under the hood.
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green 85 300SD 200K miles "Das Schlepper Frog" With a OM603 TBO360 turbo ( To be intercooled someday  )(  Kalifornistani emissons  )white 79 300SD 200K'ish miles "Farfegnugen" (RIP - cracked crank) desert storm primer 63 T-bird "The Undead" (long term hibernation) http://ecomodder.com/forum/fe-graphs/sig692a.png 
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#2
10-02-2007, 03:29 PM
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Quote:
Add w/e-brake applied also...not pointed towards the house or other objects.
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RRGrassi 70's Southern Pacific #5608 Fairmont A-4 MOW car 13 VW JSW 2.0 TDI 193K, Tuned with DPF and EGR Delete. 99 W210 E300 Turbo Diesel, chipped, DPF/Converter Delete. Still needs EGR Delete, 232K 90 Dodge D250 5.9 Cummins/5 speed. 400K Gone and still missed...1982 w123 300D, 1991 w124 300D
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#3
10-02-2007, 04:11 PM
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YOu have an 85... it IS the ARV. I know everyone will tell you belts, but I bet it's the ARV since it sounds like you noticed it was boost related. ARV= Air Recirculation Valve... its an emmisions only devise to allow a large enough flow through the EGR during certain boost levels... it HOLDS BACK boost and limits power when it's open... I took it apart when I had the turbo off and plugged it permantly, but the plug will do it.
See that blue line going into the side of the turbocharger compressor?? Pull it off and put a BB into the rubber connector and smile as the squeeling goes away.
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1985 300D Mango Green with 16" Pentas, Vogtland springs, Euros/ clear corners, 234k, lots to come soon....
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#4
10-03-2007, 06:32 PM
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thanks for all the replies!
forgot to add the fact that all belts are brand new and properly tensioned... I already (accidentally) have BB's in the EGR and ARV lines
 ....(for safety reasons, of course!) Maybe one of the lines is split or cracked. Will check it this evening. Thank you all very much for the input! Now if I could just get the cruise to work at speeds over 70MPH... (please see my other posting, if anyone has a clue as to the cause of this after trying 3 different reman. amps  ...)thanks again! Erik d.
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Erik deVries ASE Certified Automation Engineer 1985 Mercedes 300SD 375,xxx miles, Euro-headlamps, Bosch HID, Boston/Alpine audio 1982 Mercedes 300D 358,000 miles Boston audio, FOR SALE 1997 Dodge 2500 4x4 long bed ext cab Cummins 5.9L, BFAF, ATS trans, billet converter, #0 torque plate full-forward, star wheel full forward, (~295HP & ~680lb/ft G-tech), 5-inch turbo-back exhaust, VIAIR on-board air, LOUD Nathan K5 TRAIN HORNS  , 35-inch; BFG Mud Terrain, 2006 Ram 2500 17-inch Aluminum wheels.
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#5
10-05-2007, 10:16 PM
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no hoses/tubing found loose or damaged. Belts all secure. Still squealing....
__________________
Erik deVries ASE Certified Automation Engineer 1985 Mercedes 300SD 375,xxx miles, Euro-headlamps, Bosch HID, Boston/Alpine audio 1982 Mercedes 300D 358,000 miles Boston audio, FOR SALE 1997 Dodge 2500 4x4 long bed ext cab Cummins 5.9L, BFAF, ATS trans, billet converter, #0 torque plate full-forward, star wheel full forward, (~295HP & ~680lb/ft G-tech), 5-inch turbo-back exhaust, VIAIR on-board air, LOUD Nathan K5 TRAIN HORNS , 35-inch; BFG Mud Terrain, 2006 Ram 2500 17-inch Aluminum wheels.
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