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

: 01-04.5 LB7 Duramax Powertrain



  1. Winter Warm-Up?
  2. Knocking noise, not the engine
  3. Lb7 grinding starter
  4. LB7 High Rail Pressure-LOW FPR voltage
  5. fuel leak white smoke
  6. Bolts??
  7. Exhaust leak or injector knock
  8. Injector R&R time.
  9. LB7 Stopped Making Oil
  10. LB7 Eating Coolant...Never Runs Hot Though...
  11. LB7 cylinder head
  12. Coolant diagram
  13. Your opinion
  14. Help!
  15. Heads not machinable?
  16. waste gate function
  17. 2 Stroke Oil, or not...
  18. where can i find an EGR cooler
  19. LB7 shake at idle - PLEASE READ!!
  20. 2004 LB7 Problem
  21. LB7 Injector Basics
  22. Rough Idle
  23. Lb7 duramax ticking
  24. Please help with diagnostics
  25. Buying a LB7
  26. New injectors test start
  27. Losing coolant
  28. Injector #8 rate after replacemet
  29. Lb7 head gasket blown
  30. My LB7 is out of the truck, what should I be replacing?
  31. 02 Lb7 fuel in oil?
  32. new injectors causing me grief
  33. loss of power under load
  34. Factory theft detterent problem!😡
  35. Factory exhaust value?
  36. MAF sensor issues?
  37. Unkown noise
  38. 2002 lb7 smoke at idle and acceleration
  39. Transmission and power steering issue all at once
  40. Squeak noise under the cab
  41. Slight diesel smell
  42. Bad shake
  43. Loosing Coolant - Lots of white exhaust smoke
  44. Bad misfire/only running on odd cylinders
  45. Pcv diaphragm
  46. Tail light doesn't work?
  47. Lopey Sound
  48. Whistling Duramax
  49. Headgasket question
  50. Loss of Oil Pressure
  51. Original injectors or not?
  52. Oil dip stick??? Original???
  53. Service Engine light after lift pump install
  54. TCCM with a green plug HELP!
  55. Should I buy this 2004 GMC 2500
  56. Need immediate help LB7
  57. LB7 New Injectors
  58. lopy after lift pump. help
  59. GM (OEM) part number for SIR (clock spring)
  60. Pitman/idler play
  61. Can A Dealer Inspection Spot a Transfer Case Issue?
  62. Repairs to correct LB7 low fuel mileage?
  63. 2002 LB7 code p1093 PLEASE HELP
  64. What should I do?
  65. Blowing transfer shift motor not using 4wd at all
  66. School Me On LB7 Fuel System
  67. Bad Fuel leak and i cant find it
  68. Axle seal
  69. LB7 Y-Bridge
  70. low rail pressure after engine swap
  71. New Truck!! Limp mode!!
  72. Groaning from Powersteering
  73. 2004 blow by
  74. Coolant Leak at Bellhousing After Water Pump and Oil Cooler Removed
  75. Low mpgs
  76. Really odd problem with my 02
  77. Fuel routing question
  78. LB7 to LBZ SWAP
  79. wont start in colder temps
  80. LB7 wont start in colder temps
  81. transmission mount not lining up
  82. CEL code P0087
  83. Allison issue
  84. Surging idle while in gear
  85. Limp mode on startup, runs after warmed up
  86. Anyone replaced the coolant tube o-ring in the oil cooler?
  87. Lb7 spun cam bearing blown turbo
  88. Shooting for 12s
  89. Sarasota help
  90. 03 lb7 Egr cooler gasket??
  91. Mpg??
  92. 03 lb7 no brakes
  93. No Start on Cold Mornings
  94. Blue smoke @ Idle
  95. Steering gear box woes!
  96. so riddle me this... battery/charging issues?
  97. Injector Cup Inside ID?
  98. Tcm or ecm?
  99. Fpr
  100. FASS parts
  101. Headache
  102. Internal coolant leak
  103. Transmission electrical issue
  104. Oil leak
  105. 03 fuel in oil and low oil pressure questions
  106. Transfercase problem
  107. Fpr
  108. Front main seal failure
  109. IAT sensor relocation
  110. lopey idle black smoke off idle
  111. FPR or injector??
  112. Fuel Filter Head
  113. Need a v2 adapted
  114. Lift pump issue
  115. 03' Duramax Hit By Lightning
  116. 2003 Duramax died and will not start
  117. Erratic Tranny
  118. LB7 Dies in 5th gear
  119. LB7 Fuel Issues (Possible Injectors or CP3)
  120. Help!!! Driving this morning trans went in neutral
  121. Fuel in oil!!!!
  122. Water In Fuel Sensor - Wiring to Push Connector Broken
  123. Help
  124. Lb7 turbo heat shield
  125. Fass install questions
  126. Fuel system issues
  127. blue smoke miss fire when cold
  128. Help. Running engine cleaner now & have question
  129. HELP, bad fuel??
  130. New to duramax
  131. 14 Rear Axle Seals
  132. Could use some help - what looks like oil in coolant overflow tank
  133. Need help choosing LB7 injector
  134. Help! Engine codes!
  135. RPM dependent whine---Hydroboost???
  136. Lb7 rebuild questions
  137. 03 2500HD AC issues, PLEASE HELP!
  138. Need help diagnosing! Headgasket/injector sleeve
  139. P0700& p0730 trans codes help
  140. Crankcase cover question
  141. smoke
  142. Pulling out the engine
  143. help, lb7 problems
  144. Preventative Maintenance LB7
  145. Maf woes
  146. What's the difference between 5w40 and 15w40?
  147. Alternator upgrade
  148. Had to prime to start
  149. injectors,cp3,or other ideas
  150. Explosive boost leak test
  151. There has to be a better way!
  152. HELP! P0380 code and starting issues!
  153. I want a duramax
  154. Erg
  155. New To Forum Could Use Some Help on 1st Diesel
  156. Oil or something in my coolant tank....??
  157. Cp3 toasted?
  158. 01 LB7 Coolant Leak
  159. Allison trans
  160. LB7 Missfire. No Compression
  161. No throttle response
  162. I need help
  163. Ign switch help
  164. CV Axle nut removal suggestions. Help.
  165. New Injectors STILL SMOKING!!
  166. Coolant problem
  167. Bent Pushrods?
  168. On start up my a/c blows warm help!!!
  169. Truck running terrible please help
  170. More Injector Questions
  171. Question about injector replacement
  172. Best place to get injectors
  173. LB7 Duramax lopes bad and dies after new injectors
  174. LB7 Lopes bad and won't stay running after new injectors
  175. 2003 Starting to smoke
  176. Help Please p1261 201 204 206 207
  177. U1300 code stored
  178. Advice on purchasing an LB7
  179. Oil Centrifuge
  180. Buying a Lb7 with ne/cali emissions HELP!!
  181. Changed my FPR in my 2003 lb7 now have a fuel leak
  182. HELP!!! Lb7 has bad fuel knock and balance rates all read zero
  183. New ign switch
  184. Cylinder Head Injector Cup Seat Pitting/Corrosion
  185. Cp3 going out?
  186. Suspected injectors
  187. LB7 Hesitation while driving
  188. Which FPR?
  189. Still slow
  190. Code PO540
  191. Bully Dog paper air filter for K & N?
  192. Lb7 tow/haul and driveshaft lube
  193. A/C Chnages to Heat by itself while driving
  194. Well, guess I'm saving for injectors
  195. Brake Conversion
  196. New Injectors, Lost Pictures, Where do these parts go?
  197. P0093 P0094 and Loss of Power... Is this fuel injectors?
  198. Idling problems, now won't start
  199. Engine fan runs constantly
  200. LB7 Truck shuts off while driving
  201. 2003 2500hd 4x4 issue
  202. Losing boost at WOT
  203. Warning!! Cali EGR w/efilive
  204. Heaters on but supposed to be a/c
  205. Fan Clutch replacement
  206. Allison Trailer Tow mode causes harsh downshifts
  207. Muffler recommendations
  208. LB7 Allison Problems P0700 P0732 P0776 P0843
  209. Oil in coolant but no coolant in oil
  210. Checking injector balance rates
  211. P0106 post injector change
  212. Need advice about injectors
  213. Air Conditioning Problem
  214. Rubber seals for ficm bale plugs
  215. Wanted
  216. replaced cp3, now misfires on only one bank (1,3,5,7)
  217. LB7 Serpentine Issue
  218. Lb7 Duramax trouble
  219. 03 LB7 low FRP, no power
  220. losing coolant head gasket is good
  221. New (to me) 03 with a major problem
  222. Potato Potato Noise After Injectors
  223. 2002 LB7 Bad Injectors?
  224. A ton of "u" codes
  225. Injectors went and need opinions.
  226. No start after boost issues
  227. 2003 chevy LB7 wont stay running or wont start
  228. Please someone help
  229. 01 wont start/hard crank
  230. lb7 lift pump pressure questions
  231. CA LB7 EGR Removal for cleaning (not delete).
  232. Bad Turbo?
  233. 4834 Miles in 10 days...
  234. Drivetrain Help
  235. 2003 2500 HD wiring
  236. Cab Marker Lamps
  237. The Case of the Ghostly Check Engine Lamp....
  238. Lb7 clatter/missing
  239. Leveling Kit + Shocks
  240. Lb7 carnage!
  241. nsbu signs
  242. Another 2001 LB7 starting issue
  243. Overly dirty air filter?
  244. Hydraboost problem
  245. Smokey exhaust
  246. Lb7 died on highway!
  247. Air intake temperatures ??
  248. Potential purchase! Thanks in advance for helping!
  249. Truck Hiccups When Warm
  250. Glow plug p0380