Duramax Diesels Forum Truck of the Week
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Old 05-16-2017, 08:20 AM
Yellow Jacket's Avatar
Yellow Jacket Yellow Jacket is offline
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Default Allison 6 speed question, LBZ

I attached a picture of codes another guy sent me.

He says one day his truck drives fine and shifts every gear perfect. Next day it gets hot on way in to work. After he got out of work he put it in reverse and backed from his parking spot, then he was went to drive and made it about 8 feet before locking and skidding the rear tires like being bound in 2 gears. He backed up 5 more feet and went back to forward, still bound up... So he backed up 100 ft thru parking lot, then forward worked and it drove fine for 20 miles, and it was limped to 4th gear when he came to his 5th or 6th stop sign, so he finished last mile home. Next day was acting locked in 2 gears again, backed up 100 ft up his driveway and he was able to drive ahead again.

Has anyone ever seen this or can make sense of it?!?
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File Type: jpg Resized952017050295153744.jpg (75.1 KB, 60 views)
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2005 Yellow DMAX CC/SB, Fleece 63.5 VGT, 100% Exergy's, Goerend Trans, Burkhardt Spool/Axles, FASS 150

3.0 Pull Truck: 2003 CC/SB Tilt Body, ProFab Dropbox/Reverser, Crower 4 Disc Clutch, FDS75 front /Aluminum Meritor 20-145 Sheet Metal Housing, Hart's HC5A, Product Engineering 460 gph
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Old 05-18-2017, 07:36 PM
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A Transgo trim valve was stuck in the bore, and B wasn't far behind it....
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2005 Yellow DMAX CC/SB, Fleece 63.5 VGT, 100% Exergy's, Goerend Trans, Burkhardt Spool/Axles, FASS 150

3.0 Pull Truck: 2003 CC/SB Tilt Body, ProFab Dropbox/Reverser, Crower 4 Disc Clutch, FDS75 front /Aluminum Meritor 20-145 Sheet Metal Housing, Hart's HC5A, Product Engineering 460 gph
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Old 05-18-2017, 07:40 PM
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IOWA LLY IOWA LLY is offline
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What was causing it to stick?


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Best 1/8th, 7.29, 98.6MPH (Street tires, fuel only, single Journal bearing GT42 charger) (2010)

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Best 1/8th, 6.60, 106.6MPH (Street tires, fuel only, single HX60 turbo) (2017)
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Old 05-19-2017, 02:12 PM
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Quote:
Originally Posted by IOWA LLY View Post
What was causing it to stick?


Sent from my iPhone using Tapatalk Pro
Clutch debris everywhere, 120,00 miles of abuse with a built Engine and dual Fueller on an s400.... Goerend did original build in 2009/2010 sometime.

Had 1 sided c2's in it, they weren't discolored, but had a wave to them, lol.... Altos in in c3 and c4
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2005 Yellow DMAX CC/SB, Fleece 63.5 VGT, 100% Exergy's, Goerend Trans, Burkhardt Spool/Axles, FASS 150

3.0 Pull Truck: 2003 CC/SB Tilt Body, ProFab Dropbox/Reverser, Crower 4 Disc Clutch, FDS75 front /Aluminum Meritor 20-145 Sheet Metal Housing, Hart's HC5A, Product Engineering 460 gph
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