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Phoenix-LH
Bought a Sierra as Donortruck - now he stay
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315
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13K
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15
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253
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coker6303
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281
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B
New Member
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1
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42
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J
PPE lift pumps
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3
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139
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Chevy1925
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483
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318
Duramax Engine Building
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  • Locked
May '26 Chat -- "Are We There Yet?"
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88
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My Country Boy Limo. 06 LBZ
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Dm23
In need of a little assistance.
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17
Views
365
LML
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331
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  • Locked
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199
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R
2005 GMC 2500HD LLY - Need Stock Tune
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Tune Library
Cougar281
C
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LML
KBLADES
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B
BD Transmission issues
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8
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239
Mike L's Trans Talk
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B
T
Grey smoke on startup
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5
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133
LML
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T
Dozerboy
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18
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503
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High EGTs w/ KB Diesel 64mm
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13
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Bdsankey
R
Help with weird noise coming from thermostat housing
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LLY
Dozerboy
Dozerboy
M
Coolant loss into oil and no external leak! Help
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5
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132
LBZ
DAVe3283
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Mile_high
Looking for guidance and backup support before flashing LB7 (EFILive / LDS tunes / DSP5 / emissions)
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22
Views
900
Duramax Tuning, Logging, and Gauges
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Aluminum Radiators?
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12
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532
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Brakes refuse to bleed properly
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8
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225
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Hello
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2
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Introductions
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Stock lly tune and os
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1
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128
Tune Library
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4
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132
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251
LML
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R
2021 3.0 jerking at hwy speed
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0
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73
LM2 (3.0L) General Talk
Rappid
R
G
Duramax in an old 6x6 in Germany
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16
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468
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malibu795
Bought a Cruze
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47
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2004LB7
Direct message transfer to forum/thread
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177
Forum Suggestion Box
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W
Broken pin holder in ecm connector
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98
LML
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Parker_
LLY: Looking to paint match , code brings up wrong color
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21
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sweetdiesel
  • Sticky
PID files
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49
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Duramax Tuning, Logging, and Gauges
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D
Fuel tank balance
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3
Views
106
General Fuel System & Exhaust Questions
Bdsankey
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D
Fuel knock
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12
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193
LML
DEWMO
D
WVRigrat05
2023 1500 Duramax brakes
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4
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LM2 (3.0L) General Talk
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lutzjk
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