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View Full Version : 6.5L Turbo Diesel - Tech Support - Troubleshooting - Performance



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  1. P400 Block Assembly Identification
  2. Mechanical pump timing, am I missing something?
  3. Oil filter reloacation
  4. TPS for the DB2 pump.
  5. Pryometer
  6. 6.2 heads
  7. '92 Kennedy Cooling upgrade
  8. 95 K3500 dies,,
  9. Matching rev-counter signal to speed output.
  10. VSSB Broadcast codes
  11. Need help with grounds
  12. Help!! 98 6.53500HD wireing problem
  13. Oh, no, what else can go wrong?
  14. 6.2 Military engine
  15. Advice on removing 93 td6.5 k2500 from nv4500 4wd
  16. 1996 6.5 overheating problem
  17. 6.2 vs 6.5 Injectors
  18. New Heads
  19. 2007 Optimizer
  20. Idle not dropping to base when coolant up to temp
  21. Need Oil pump bolt
  22. 6.5 Starter Help
  23. Where to buy new exhaust manifold bolts?
  24. Bracket?
  25. Air in line?
  26. Washer identity help
  27. Fuel line diagram
  28. 130 gpm cooling upgrade explained
  29. 1995 A/C Assembly/installation, coolant sender unit.
  30. Dual stat crossover on a 95 6.5 T/D
  31. 6.5 Turbo Diesel
  32. What Engine and Year Do I Have?
  33. Stutter/Stall Issue: Troubleshooting/Confirming PMD Failure?
  34. Firewall/Hood Sound Proofing or No?
  35. Harmonic Balancer
  36. Obd2-1 questions
  37. Drain Valve
  38. Cruise control
  39. Carter P4600HP Fuel Pump
  40. Rebuilding injectors
  41. oil consumption
  42. Help with diagnosis
  43. Block ID
  44. Head rebuilding
  45. 6.5 diesel egr flow insufficient codes
  46. Rocker arm retainer buttons
  47. Optimizer 6.5 T/D Oil Filter Adapter
  48. Differences between truck and Hummer heads
  49. need rear hub puller
  50. will not crank
  51. Got my 18:1's
  52. Engine Identification
  53. Shaved block?
  54. Another flavor of air in fuel problem
  55. 6.5 Turbo Diesel p0236
  56. Pushrods
  57. 97' 6.5l turbo shuts off at random
  58. 1993 intermittent no start
  59. Knock
  60. Voltage drop and wastegate issue
  61. Performance exhaust
  62. Wicked Wheel 2
  63. Single water neck on 96 model
  64. Frustrtated
  65. 6500 OPTIMIZER drop in
  66. Success!!!!
  67. Low boast
  68. Recommended 6.5-literate mechanic in Portland, OR
  69. Update
  70. Turbo upgrade
  71. Grounding
  72. '92 vacuum pump
  73. Uncommanded full throttle
  74. 1992 6.5 T/D Fuel lines
  75. Acquired a non-running 6.5 TD
  76. 99 suburban high idle switch
  77. '92-'93 throttle cable.
  78. Compressed thickness of a stock head gasket?
  79. 6.5 Turbo Diesel
  80. Crankshaft pulley bolts
  81. 6.5 engine swap
  82. engine shuts down 1995 6.5
  83. Temp gauge not working
  84. Will it bolt up
  85. Complete Optimizer without timing tab
  86. Bucking-Fishbite Under Load- Again and Ongoing
  87. Top end noise.
  88. 6.5 blowing smoke after rebuild
  89. My 6.5L engine does not start
  90. Truck stalls when warm
  91. Remove engine/gearbox 1993 6.5 turbo diesel
  92. Fluidampr and crankshaft pulley
  93. Original Fuel Pickup sock for our 6.5s No Longer Available
  94. Suburban Resurrection
  95. Date code stamped in block near PMD
  96. Electrical issues
  97. Cracked Navistar block
  98. cranking problems
  99. Front end problems
  100. Radiator: OEM or All Aluminum?
  101. 6.5 IP Pump issue
  102. Help new engine !!!!!!
  103. Lift off the body on a 1996 suburban
  104. Sudden Change in Glow Plug Cycle
  105. "NOTICE" P400 is out of production for good!!
  106. Trans cooler
  107. Codes 84 and 99
  108. Starts and dies,,
  109. Power steering fluid overflowing when bleeding brakes?
  110. Clicking noise from radio,,
  111. GM turbos,,
  112. Help, fuel to, not out of injection pump.
  113. Banks 6.2 turbo on a 6.5,,
  114. ODB II Code P1656 driver 2 line 6 error
  115. Front Starter support Bracket, is this it?
  116. Block identification
  117. Best clutch for 1996 with NV4500
  118. ecm electrical nightmare
  119. Engine problem
  120. Excessive Smoke
  121. Need a comprehensive part list for:
  122. Rarety of 6.5 suvs
  123. 6.5 dual stat cooling upgrades back in stock!
  124. Sudden Acceleration 6.5 Turbo Help!
  125. 6.5 water pumps
  126. Back up and working!
  127. Heater core hose.
  128. GEP 6500 intercooler manifold
  129. 1995 6.5 no high idle at cold start-up
  130. Timing Gear Set Splash Shield
  131. Odd timing question
  132. Help needed from Sweden
  133. 95 lift pump not pumping while truck is running
  134. Efi to mfi
  135. 2001 gmc 3500 van 6.5 t/d
  136. p42 workhorse Dies at running temp
  137. Eric's 6.5 Tow Build
  138. Can you get 18:1 pistons?
  139. Quality Machine Shop in Florida
  140. 93 K2500 6.5 turbo diesel ** I
  141. Head studs in truck
  142. 6.5 T/D motor mounts and brackets
  143. 6.5 turbo Diesel transmission help
  144. 6.5 Belt Idler
  145. RockAuto Discount Code
  146. Lifter preload
  147. 6.2L/6.5L Diesel Shops in the Miami/Fort Lauderdale, FL. area
  148. Need 6.5 Optimizer longblock
  149. DTC codes
  150. What "Local Programming" needs doing on a replacement ECU?
  151. Broken
  152. Remanufacturing a 2009 GEP 6.5 Optimizer...
  153. stepper motor
  154. adding a fuel pressure gauge
  155. 1997 Van ECM
  156. P0236
  157. Mechanical 6.5 turbo start run problems
  158. SWENGINES,com
  159. Stepper engine
  160. 4L80E Shifts out of Overdrive/4th Gear
  161. Last 6.5L
  162. Issue with the go fuse
  163. 6.5L temperature issues
  164. Replace ECM and/or PROM?
  165. Engine and transmission temp issues
  166. 6.5 Optimizer Oil leak, possible low pressure
  167. 6.5l td rough running under 1500rpm when warm
  168. glow plug connectors
  169. Tps sensor??? Where is it an how do I get to it
  170. The Last 6.5
  171. Excessive smoke 6.5
  172. Another glow plug thread
  173. A word about new turbomasters
  174. OPS/fuel pump FUSE keeps popping
  175. 94 6.5L Oil problem.
  176. re-awakened from the dead
  177. Removing fuel tank
  178. 1995 6.5 no start No glow plug light
  179. 94 trans not locking up
  180. No actual ip timing signal
  181. The GM 6.5L Diesel
  182. Good 6.5 Service Source
  183. skipping on deceleration?
  184. 94 3500 Oil problem.
  185. f-fish bite, but,..
  186. Vortex to mechanical 6.2 conversion
  187. Which Resistor to use? Or No Resistor at all?
  188. Bolts for dual thermostat housing
  189. throttle issue
  190. 1994 3500 Front drive shaft
  191. wiring problem
  192. Block Identification
  193. Identify Hydroboost
  194. Fuel Leak 6.5 TD HELP
  195. Injection pump causing a runaway
  196. 2000 Chevy K3500 Crewcab 4x4 Dually 6.5l TD auxiliary coolers
  197. 1995 6.5 T/D No Hot Start
  198. Alarm or What???
  199. 1998 6.5 T/D Bought for parts
  200. Loosing all boost off idle
  201. 1993 6.5 td. Black fuel
  202. Suburban fuel tank removal
  203. Unidentified Slapping Sound Coming from the Motor.
  204. 94 6.5 Diesel pulling multiple codes
  205. Vacuum pump pulley
  206. Instrument panel cluster pinout
  207. How many bullets does it take to make you feel better...
  208. RPM Jumps from 1200 to 2000
  209. 6.5 intermittent no start help
  210. Oil in coolant
  211. Military 6.5 information needed
  212. Need help deciding: first time 6.5 purchase.
  213. Idle vibration
  214. 1992 GMC 2500 6.5 Turbo Diesel surging and stalling
  215. No Start when warm
  216. Surging issue on my 93 dually.
  217. High Capacity Oil Filters
  218. Realistic Hauling Expectations
  219. DB2 4911 pump rebuild.
  220. Be sure to check your starter bracket!!
  221. 6.5 surging, black smoke
  222. Please help!! 6.5 Td 4l80e issue
  223. No start and of course I need to get somewhere
  224. ignition switch
  225. Heard a sound like crumpling a plastic bottle, then a major fuel leak from bell....
  226. 99 6.5, new to this forum
  227. 2002/2003 GMC 3500 Savana cutaway/shortbus
  228. 97 3500 6.5 running rough
  229. 6.5l turbo 1993 wont crank over
  230. injector pump ?
  231. 1996 6.5 diesel keeps stalling
  232. Fuel in oil
  233. 1993 6.5 wont start new injection pump
  234. 6.5 turbo starting issues
  235. 6.5L 1997 electric diagram
  236. 1995 6.5 crank/no start
  237. 6.5 trouble shooting
  238. Best injector pump from online
  239. 99 6.5 to 93 6.5 mechanical
  240. Could it just be old fuel
  241. 2001 6.5l intermittent cut out and now won’t start.
  242. Throttle issues and shutting down
  243. Crank no start
  244. Inspecting Accelerator Pedal Position (APP) on 98 Chevy Silverado
  245. New lift pump
  246. Glow plugs again
  247. 1993 chevy 3500 diesel 6.5 no crank no start
  248. Super 60 Turbo??
  249. 6.5 starts, exhaust comes out from turbo area then stalls
  250. Lift pump wiring