01-04.5 LB7 Duramax Powertrain [Archive] - Chevy and GMC Duramax Diesel Forum

: 01-04.5 LB7 Duramax Powertrain


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  1. 2002 cut off and won't start
  2. AC Compressor Squeal
  3. 2003 dmax wont fire without help
  4. LB7 Surging/Loping in Drive
  5. 03 chevy 4wd problem
  6. intake air leak???
  7. The Big Ones
  8. Lb7 cp3
  9. Anouther Question ?
  10. Stacks on a regular cab = BAD IDEA
  11. Confused !
  12. yet another issue/concern
  13. injector cup question
  14. bad injector maybe?
  15. 2001 LB7 Grumbling in reverse
  16. Weird noise
  17. DMAXSTORE Coupons?
  18. Changing my injectors.
  19. Anyone else think the ZF6 Speed sucks behind these motors?
  20. Please Help-Truck just started up fine then died.
  21. Balance Rates Question
  22. Three Fault Codes P0380, P1093, ND026
  23. 01 LB7 loud pop, sluggish, fuel gauge out
  24. 2003' throwing the po380
  25. Twin turbos
  26. High FPR after lift pump install
  27. Tranny problem
  28. 2001 GMC 2500HD New FICM problem after injector install
  29. Long idle times
  30. questions on injectors
  31. P0899 after injectors. Why?!!!
  32. LB7 Not Starting!
  33. Weather Temp To Hot
  34. Need a set of injector cores
  35. Torque Spec Confirmation
  36. Need help !! Cuts, and pops under throttle
  37. Need help !! Cuts, and pops under throttle
  38. WTH vents only blow on the floor after injector replacement
  39. 03 White Smoke and Power Loss - Help
  40. '01 GMC with LB7 oil/diesel leak
  41. 2004 Silverado
  42. Lb7 Do I need new injectors??
  43. Rearend Oil Change ?
  44. Need HELP!!!
  45. Surging
  46. 01 LB7 terrible sputtering issues, please help
  47. Transmission
  48. Lb7 cylinder 1 misfire and +15 on #1 injector
  49. stuck in first ...help.
  50. rad hose hard after sitting
  51. Valve Cover Question
  52. Low boost at WOT
  53. odd squeek from front of truck
  54. Egr valve Cali lb7 replaced
  55. Fan clutch question
  56. Valve Cover Gasket difficulty?
  57. EFI Live $0101
  58. Black Oil ?
  59. TQ Converter Issues???? Pulsing!!
  60. Injector opinions needed.
  61. EGR delete or code delete
  62. Is this tuner safe for the stock tranny?
  63. Engine stalling out
  64. Diesel fuel filling #3 after injector replacement please help!
  65. Vacuum pump LB7 Cali emission
  66. External Trans cooler Bypass
  67. Battery/Starter issues
  68. Because we need more injector stories
  69. little help
  70. Fuel filters quality vs price
  71. 04 lb7 donor lbz
  72. 04 lb7 hard start
  73. Stock Allison transmission life
  74. 2001 silverado cranks but won't start without either
  75. Lb7 smoking black on hard acceleration
  76. Odd trans issue
  77. a/c only blows through defrost
  78. Fuel return rates
  79. need help
  80. 2003 2500hd
  81. ANOTHER issue after headgaskets
  82. Won't start after headgaskets need HELP
  83. What is this bracket?
  84. Cab Removal for Service
  85. Can anyone identify these injectors?
  86. Good deal?
  87. Electical power loss after HG
  88. Beyond dead please help!
  89. Reduced engine power code
  90. need input on good injectors
  91. LB7 Service Time...
  92. truck died fuel really hot
  93. Buying advice
  94. Lb7 coolant leak. Helpppp
  95. Bad crank bearings help!!!!
  96. Gear display (PNRD123) not lit.
  97. ECM P0088 code
  98. 2002 LB7 p0106 can't figure it out! Help please!
  99. not as much power after new injector install!
  100. I need help again
  101. Shift Selectr Shaft Replacement
  102. rear cross member replacement
  103. 04 LB7 blowing white smoke
  104. Fuel Pump and Injectors
  105. No power at ODB-II HELP!
  106. 2002 LB7 voltage gauge issue
  107. LB7 blew up
  108. 01 duramax trans p1721
  109. Water pump replacement issues
  110. Zf6 clutch help
  111. Getting new injectors
  112. Wheel offset and size
  113. Ross from s. Fla
  114. LB7 Bad FICM? Lope? Need HELP
  115. Crank no start
  116. Just bought a lb7 with egr problems
  117. help oil sludge in coolant reservoir 04 lb7
  118. New Racor FWS with lift pump?
  119. Weird wire coming out tranny pan
  120. transmission shifting rough.
  121. Need banjo bolt part number
  122. Zf6 southbend issues
  123. do I need a bov for my new gt40r or can I run it without?
  124. Won't start...fuel related maybe?
  125. Help: Lb7 overheating / loss of oil pressure
  126. bought lb7
  127. lb7 wont start after injector replacement
  128. Shifting weird
  129. Electrical issues HELP!!! I have codes!
  130. Signs that the ol Allison is goin out
  131. Muffler laws in Texas?
  132. positraction in differential
  133. 03 Making a ticking at 20 psi
  134. Loud knock!!!
  135. new injector issues
  136. Having problems starting
  137. 2 new problems
  138. Well, that was uncalled for.....
  139. 2002 duramax shutting off
  140. New member needing advise...
  141. injectors prblems
  142. How soon should I do head gaskets and arp bolts at 300k miles?
  143. 02 lb7 fuel problems
  144. LB7 Won't turn over with key at all
  145. P1093 and p1094 codes
  146. Bad caliper?
  147. Starter bolt size?
  148. Truck won't start any help would be greatly appreciated!!
  149. Need to reflash new software ???
  150. Looking at an 01 lb7. Why are the injectors bouncing up and down?
  151. 02 gmc 3500 vin 1 engine miss help
  152. Who buys injector cores?
  153. Engine smoking
  154. please help desperate!!!!!!
  155. PS Pump situation
  156. Trans Temp gauge at 180?
  157. Fuel in oil only after drivng 3 or 4 miles
  158. Rough Idle after new heads, injectors, CP3 & FPR
  159. LB7 half stall from dead stop
  160. head gaskets backwards?
  161. Urgent!! Problem with transmission.
  162. Help- shudder at takeoff
  163. P2227 code will not clear!!
  164. True answer for egt probe
  165. This is a must see! Duramax starter
  166. 04 3500 6.6L no oil pressure
  167. 2002 GMC injector problem. Please help!!!!!
  168. HELP! Intermittent Starting Problem!
  169. 04 lb7 smoke issue
  170. A/C fam speed issue
  171. transfer case question
  172. Fuel display off 5 gallons the bad way
  173. Poll: Injector Life for LB7s with Aftermarket Filters/Lift Pumps
  174. Injector issues ?
  175. 02 LB7 Cranks but No Start.
  176. "EGR system not ready" - CA smog
  177. Coolant temp question
  178. questions before I data log
  179. Why do I keep blowing this fuse?
  180. Y bridge fitment
  181. 01 coolant issue. Headgasket?
  182. Adding a boost gauge
  183. Bad Wastegate??????
  184. Kinda cool
  185. Fuel lines
  186. Built trans stuck in limp mode...
  187. White Smoke problem
  188. Truck dies
  189. Boost leak?
  190. Pretty sure my cp3 is gone
  191. Revmax tranny upgrades worth it?
  192. Sold the truck, still have some leftovers
  193. 2003 Range Shift Inhibited and tow haul?(MICHIGAN)
  194. LB7 Dies right away
  195. screeching while turning left and braking
  196. Seized turbo wheel help
  197. 01 LB7 no power at higher rpm
  198. P1631 Theft deterrent start enable password not correct!
  199. 6.6 LB7 falling on its face...
  200. not enough air?
  201. Transfer Case Leak (Rear Seal??)
  202. Limp Mode
  203. losing oil from tube, overflow??
  204. New injectors rough idle
  205. Fuel Leak
  206. tranny limped sticks in 3rd
  207. 2001 LB7 falling out of gear, electrical issue?
  208. Airdog went out few days later truck won't start
  209. Replacing the brakelines.. damned..
  210. puked a little coolant
  211. First Allison fluid change.
  212. LB7 Low Power After New Injectors
  213. finishing LB7 injector change, got a coolant problem.
  214. Scan tool Portland OR $100.00
  215. Loud hum noise, Help!
  216. advice with allison limp
  217. Something to think about for your injectors
  218. Electrical issue?
  219. 2001 GMC Sierra 2500HD 2wd RATTLING TRANNY!!!!!
  220. Bad injectors or bad engine
  221. No start, HELP!
  222. Anyone want to trade Allison for zf6?
  223. Lb7 Down pipe install
  224. Starts right up
  225. oil in coolant without pressure?
  226. Injector replacement, no install kit???
  227. Injector failure??
  228. Burning oil
  229. Injector Time
  230. Weird stuff going on after new injector install. Need some opinions.
  231. FPR problems
  232. 03 lb7 leaking trans fluid
  233. NO START Low lift pump pressure.
  234. LB7 Injectors Replacement Near Allentown PA
  235. 03 LLY swap won't start - likely wiring issue?
  236. 2003 lb7 doesn't accelerate passed 2200rpm
  237. power steering replacement lines
  238. Battery voltage when starting
  239. 2002 LB7 150K Miles settle "Blip" when shifting
  240. Head gasket repair upgrade ?
  241. 2003 duramax for sale! $8,000
  242. Ive had enough...
  243. T-C Lock-up?
  244. 2001 lb7 little to no acceleraction. help
  245. White Haze/Smoke
  246. Fuel system questions on 2004 LB7
  247. Lb7 standalone
  248. Injector Write Up?
  249. 4wd shifter flopping around
  250. Turbo Whine