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

: 01-04.5 LB7 Duramax Powertrain



  1. Help!!! Driving this morning trans went in neutral
  2. Fuel in oil!!!!
  3. Water In Fuel Sensor - Wiring to Push Connector Broken
  4. Help
  5. Lb7 turbo heat shield
  6. Fass install questions
  7. Fuel system issues
  8. blue smoke miss fire when cold
  9. Help. Running engine cleaner now & have question
  10. HELP, bad fuel??
  11. New to duramax
  12. 14 Rear Axle Seals
  13. Could use some help - what looks like oil in coolant overflow tank
  14. Need help choosing LB7 injector
  15. Help! Engine codes!
  16. RPM dependent whine---Hydroboost???
  17. Lb7 rebuild questions
  18. 03 2500HD AC issues, PLEASE HELP!
  19. Need help diagnosing! Headgasket/injector sleeve
  20. P0700& p0730 trans codes help
  21. Crankcase cover question
  22. smoke
  23. Pulling out the engine
  24. help, lb7 problems
  25. Preventative Maintenance LB7
  26. Maf woes
  27. What's the difference between 5w40 and 15w40?
  28. Alternator upgrade
  29. Had to prime to start
  30. injectors,cp3,or other ideas
  31. Explosive boost leak test
  32. There has to be a better way!
  33. HELP! P0380 code and starting issues!
  34. I want a duramax
  35. Erg
  36. New To Forum Could Use Some Help on 1st Diesel
  37. Oil or something in my coolant tank....??
  38. Cp3 toasted?
  39. 01 LB7 Coolant Leak
  40. Allison trans
  41. LB7 Missfire. No Compression
  42. No throttle response
  43. I need help
  44. Ign switch help
  45. CV Axle nut removal suggestions. Help.
  46. New Injectors STILL SMOKING!!
  47. Coolant problem
  48. Bent Pushrods?
  49. On start up my a/c blows warm help!!!
  50. Truck running terrible please help
  51. More Injector Questions
  52. Question about injector replacement
  53. Best place to get injectors
  54. LB7 Duramax lopes bad and dies after new injectors
  55. LB7 Lopes bad and won't stay running after new injectors
  56. 2003 Starting to smoke
  57. Help Please p1261 201 204 206 207
  58. U1300 code stored
  59. Advice on purchasing an LB7
  60. Oil Centrifuge
  61. Buying a Lb7 with ne/cali emissions HELP!!
  62. Changed my FPR in my 2003 lb7 now have a fuel leak
  63. HELP!!! Lb7 has bad fuel knock and balance rates all read zero
  64. New ign switch
  65. Cylinder Head Injector Cup Seat Pitting/Corrosion
  66. Cp3 going out?
  67. Suspected injectors
  68. LB7 Hesitation while driving
  69. Which FPR?
  70. Still slow
  71. Code PO540
  72. Bully Dog paper air filter for K & N?
  73. Lb7 tow/haul and driveshaft lube
  74. A/C Chnages to Heat by itself while driving
  75. Well, guess I'm saving for injectors
  76. Brake Conversion
  77. New Injectors, Lost Pictures, Where do these parts go?
  78. P0093 P0094 and Loss of Power... Is this fuel injectors?
  79. Idling problems, now won't start
  80. Engine fan runs constantly
  81. LB7 Truck shuts off while driving
  82. 2003 2500hd 4x4 issue
  83. Losing boost at WOT
  84. Warning!! Cali EGR w/efilive
  85. Heaters on but supposed to be a/c
  86. Fan Clutch replacement
  87. Allison Trailer Tow mode causes harsh downshifts
  88. Muffler recommendations
  89. LB7 Allison Problems P0700 P0732 P0776 P0843
  90. Oil in coolant but no coolant in oil
  91. Checking injector balance rates
  92. P0106 post injector change
  93. Need advice about injectors
  94. Air Conditioning Problem
  95. Rubber seals for ficm bale plugs
  96. Wanted
  97. replaced cp3, now misfires on only one bank (1,3,5,7)
  98. LB7 Serpentine Issue
  99. Lb7 Duramax trouble
  100. 03 LB7 low FRP, no power
  101. losing coolant head gasket is good
  102. New (to me) 03 with a major problem
  103. Potato Potato Noise After Injectors
  104. 2002 LB7 Bad Injectors?
  105. A ton of "u" codes
  106. Injectors went and need opinions.
  107. No start after boost issues
  108. 2003 chevy LB7 wont stay running or wont start
  109. Please someone help
  110. 01 wont start/hard crank
  111. lb7 lift pump pressure questions
  112. CA LB7 EGR Removal for cleaning (not delete).
  113. Bad Turbo?
  114. 4834 Miles in 10 days...
  115. Drivetrain Help
  116. 2003 2500 HD wiring
  117. Cab Marker Lamps
  118. The Case of the Ghostly Check Engine Lamp....
  119. Lb7 clatter/missing
  120. Leveling Kit + Shocks
  121. Lb7 carnage!
  122. nsbu signs
  123. Another 2001 LB7 starting issue
  124. Overly dirty air filter?
  125. Hydraboost problem
  126. Smokey exhaust
  127. Lb7 died on highway!
  128. Air intake temperatures ??
  129. Potential purchase! Thanks in advance for helping!
  130. Truck Hiccups When Warm
  131. Glow plug p0380
  132. Injector DIY rebuild
  133. Zf6 swap
  134. Need some help here!
  135. Injector return line install?
  136. I'm lost
  137. Where does this go?
  138. Should I buy
  139. LB7will not prime
  140. G80 Swap
  141. DIC and MPG questions
  142. Air dog 165 problems
  143. 2004 AC Issues
  144. Buying a new Duramax
  145. Balance Rate vs Pulse Width/black smoke
  146. Running bad except tow/ haul mode
  147. 03 Cali emissions.. vacuum/wire question
  148. p0404 SURGE at idle, low mileage LB7 4x4
  149. lb7 fuel in oil
  150. Random Shutdown
  151. 02 duramax trouble
  152. Driveshaft question
  153. rattle at idle and shutdown
  154. Truck started whistling
  155. fuel filter head assembly
  156. 04 NO START post running low filter change
  157. lb7 won't crank
  158. Lb7 short block
  159. driving in 4x4??
  160. Just rebuilt by fuel filter head
  161. LB7 Turbo P.I.T.A
  162. Pouring white smoke & oil. Rattle. HELP PLZ
  163. realdiesel.com
  164. 2wd tranny seems hestitant when you get on the pedal?
  165. Making strange sound, Boost leak?
  166. PLEASE HELP 02 wont start
  167. Help cp3 or injectors
  168. EGR test and repair
  169. Found in Antifreeze
  170. 2003 226k crank no start still no luck
  171. What size Ring Gear do I have?
  172. map sensor
  173. Cooling Issue
  174. New injectors?
  175. Very light loping at idle, Throttle jumps without accelerating
  176. Lb7 Long crank no start
  177. Oil Consumption
  178. 04 lb7 phantom engine light?
  179. New body
  180. Bypass tube o ring hope this helps every one
  181. need help on a squeeking issue lb7
  182. Truck died and won't start! CRANK NO START, Need help 2003 LB7
  183. LB7 Top end Rebuild, Fuel system overhaul
  184. 2003 lb7 light surge at idle
  185. Nagging coolant leak
  186. small amount of black smoke at ide
  187. Good shops in oregon?
  188. 04 lb7 hellacious knock
  189. Fuel/Oil Leak nightmare
  190. Towing OK with leaking transfer case?
  191. 2003 Questions
  192. DRLS not working? Help?
  193. Low fuel pressure
  194. Check Engine Codes?
  195. Injector rates
  196. Coolant leak
  197. Originals ?
  198. LB7 Allison Trans acting up
  199. Beat to death but lost now. I've been searching for days
  200. Lb7 beat to death topic but lost
  201. 150-250 psi on rail pressure . Lb7 won't fire up
  202. Starting Isuues
  203. Leak? Brake Fluid?
  204. Half shaft clip broken
  205. low rail pressure when hot
  206. No crank or starter click after driving 3 hours!
  207. Cup Removal During Injector Replace
  208. Injector bolt breaking
  209. Massive Fuel Leak, Drivers Side.
  210. Tired of this LB7 HELP!!!
  211. LB7 Mass Air Flow Sensor (MAFS) ???? OEM or Aftermarket?
  212. remote lock/unlock
  213. New Thermostats now an oil leak ??
  214. LB7 stock platform build up
  215. LB7 problem after fixing FPR
  216. Limp in 5th
  217. Weird Electrical Problems
  218. Intermittent Low Rail Pressure at idle
  219. LB7 throwing code P2227
  220. Balance Rates
  221. LB7 Problems??
  222. intermittent slightly rough idle
  223. CA emission glow plug controller help
  224. Check engine light on
  225. Am I completely Hosed?
  226. EDU 25 amp fuse blowing
  227. LB7 Hard crank, rough idle, puts out randomly
  228. LB7 Help Please!!!!!
  229. P0107 help
  230. Transfer Case assembly
  231. 01 lb7 dies at 1500rpms
  232. Gp Sorensen reman injectors???
  233. New lb7 owner fuel system issues
  234. Limp mode again!!
  235. new cp3 bad?
  236. Edge Cts injector balance rates ?
  237. Water under valve covers
  238. Oil pressure going down
  239. Should I buy it for $8K? 109K miles
  240. 03 duramax lb7
  241. 03 2500hd lb7 won't start
  242. Broken axle housing/spindle. Help!
  243. head gasket?? Maybe
  244. What tranny lines to use?
  245. 03 leaking antifreeze
  246. won't start hot
  247. Tranny limp mode
  248. 2001 shutting off an not starting
  249. Dreaded P0380 after replacing Glow Plug Controller
  250. Ecm problem