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



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  1. High EGT when towing
  2. Mech vs Vac waste gate control ?
  3. New problem Miss fire
  4. Duramax Exhaust on a 6.5
  5. What A Difference !!!
  6. Intercooler and Goodyear "Hi-Miler" hose?
  7. Boost Issues
  8. no start
  9. new problem
  10. fishbiting IP fuel metering questions and observations
  11. Crazy start seq. after engine swap
  12. Dual Thermostat Water Cross-over
  13. Thinking bout buying a 95' burb'
  14. Overheating Issues
  15. P0216 and P1214
  16. No glow plug light at times
  17. IP replacement
  18. Will '95 Water Crossover (dual) Fit A '98
  19. Fuel pump relay
  20. 454 to 6.5 swap
  21. Electric fuel pump
  22. She starts, runs, shifts, and drives!!!
  23. need exhaust down pipe
  24. timing questions
  25. Broken Piston Ring?
  26. Cruise Control Cable
  27. Turning up the IP
  28. Cover over intake manifold
  29. Rough Idle Diagnosis
  30. Fuel Gauge swinging
  31. To insulate or not?
  32. missing, no power, smoke above 2500 rpm
  33. Sad tale and mechanics that haven't a clue
  34. Rebuilt Motor
  35. Injector cleaner screwed up injector
  36. Twin turbos
  37. Code 78
  38. Code P0380 ?? Anyone have a 98??
  39. 0251code
  40. Which Imjector Pump to Use
  41. lower boost after increasing fuel
  42. where to start?
  43. WHAT Thermostat, 195 or 180?
  44. White Smoke raw fuel
  45. Chips, economy vs towing vs stock
  46. Stalling, fishbites, and no start
  47. Weird Tach?
  48. Electrical Problem no cranking
  49. 6.5 diesel throttling up
  50. stall, extreme intermittent start, out of ideas
  51. Does this engine/vehicle combo exist?
  52. 6.5l P400 Mechanical Injection Pump
  53. Any pearls of wisdom for one about to buy a 99 6.5 Savana?
  54. HELP where to buy a crankshaft pulley
  55. Crank Pulley Failure
  56. Runs rough, Injectors?
  57. extremely rough running - fuel shut off solenoid?
  58. Oil Filter Adapter Plate
  59. Fun on the Road--Tales of Woe
  60. Intercoolers/Charge Air Coolers Info
  61. 6.5 surging, black smoke
  62. Another mind warp (for me!) question?
  63. A boost question
  64. Head Questions
  65. 95 6.5 turbo shifting problem after motor swap
  66. Oil Recommendations
  67. Fishbite diagnosis
  68. Setting Timing Via Obdii
  69. 5 lbs of manure in a 2 lb bag?
  70. DTC 33 and 34
  71. Cracked Piston
  72. where to start new status with video
  73. ground question
  74. Engine Rebuild
  75. 6.5 w/mechanical pump won't shut off
  76. Best Upgrade for 6.5 turbo diesel
  77. My 4" exhaust with custom rear housing for turbo.
  78. 96 versus 97+ air box
  79. NA injectors on a turbo engine?
  80. Db2-4911 Ip
  81. Stalls over bumps still with new PMD
  82. 95 3500HD 6.5 wont start
  83. Swapping engines- what have I missed?
  84. GMTD Scan tech
  85. Dtc 18
  86. How to fix a cracked 6.5 block
  87. Stock filter housing heater
  88. Lift pump fittings
  89. DTC 62 - Turbo Boost Sensor Circuit Low
  90. MPG turbo vs. non-turbo
  91. knock out of the intake
  92. Suburban will not start, GLOW PLUG LIGHT does not come on
  93. Batterys and Battery Gauges
  94. mysterious oil leak on passenger side near bulkhead
  95. 6.5 TD Compression Test Results
  96. PMD and coolant hose
  97. Cracks revisited
  98. Can't time
  99. dead in the middle of the road.
  100. Alternator Bracket
  101. Injection Pump
  102. loosing power to the transfer pump
  103. OPS check 95 6.5L turbo
  104. 6.5TD engine races and sometime stalls - IP?
  105. Looking at a '93 6.5 N/A what to look for
  106. 1994 DS4-DB2 Conversion 4974 Pump Qs
  107. New PMD
  108. Worst oil change EVER
  109. 6.5TD Block
  110. turbo not spooling
  111. Will this injection pump work on 99 sub "F"
  112. Next Step?
  113. Lift pump will not draw fuel from tank? Does it self prime?
  114. boost vs pyro temps
  115. Hummer wont start
  116. Best way to bar-over 1994 6.5TD
  117. Where to get 6.5TD add-ons for my 01 express van?
  118. Aftermarket CC system for the 6.5TD? Anyone use one?
  119. lift pump/ops?
  120. Slow to start, air in return lines
  121. GMC 6.5l Idle and Tailpipe Questions
  122. Oil pump questions
  123. she just quit need help
  124. inj pump install
  125. Mystery Fuel Problem, driving me crazy
  126. another air box question
  127. Pillar gauge pod set-up for an express van?
  128. TurboMaster
  129. Stanadyne or DTech PMD?
  130. 1972 GMC Jimmy
  131. Oil leak on G30 van
  132. Everything else checked out, bad IP?
  133. Mounting of new PMD/FSD on Kennedy FSD Cooler Kit
  134. DB2 injection line torque
  135. boost controller
  136. Injection pump question
  137. 94 Suburban Cold Start
  138. pmd controls ?????????
  139. spun bearing (maybe)
  140. Rocker armś play??
  141. I think I've done everything recommended??
  142. oil filter
  143. Thanks to the TDP, Diesel running better
  144. 93 k2500 6.5 no start when hot
  145. Oil Cooler Lines
  146. Air in fuel, Veg oil that is
  147. GM engine parts
  148. No Brake Lights
  149. Input requested
  150. Fuel injection pump or injector?
  151. Removing the resistor in the FSD/PMD
  152. 5th gear and clutch problems
  153. 93 cooling system upgrade
  154. is this an Injector issue that can cause engine blow?
  155. modified CAT and emissions testing?
  156. pmd, fishbite, stalling?
  157. bearing failure on AMG block?
  158. What does the resonator tube do??
  159. Code 36
  160. stock injectors
  161. Service Engine Soon
  162. How does a wastegate work?
  163. Metal Flakes
  164. 97 Vacuum system
  165. starter r and r
  166. Hard Start, White Smoke...
  167. Help - Sudden stalling of 6.5 Suburban
  168. Starter
  169. What to do now for power
  170. Moving on Up????
  171. Oil Leak
  172. '96 6.5L Suburban with poor throttle response
  173. ABS light
  174. Looking for some advice
  175. Turbo questions???
  176. Replace dead 6.5 with a 6.2?
  177. Help !!!!
  178. Heater temperature stays hot
  179. P1656 & Clogged Cat
  180. Where can i find a 1998 6.5L wiring harness ?
  181. casting # question and suggestions
  182. vacume pump
  183. Obd 1 - Data Logging Software
  184. Here’s a good one:
  185. wastegate solenoid
  186. block heater question?
  187. Oil Filter Question
  188. New Member Intro and noob questions
  189. Glow plug fun....Resistance Values.. 95 Sub
  190. Lift Pump Not Working?
  191. turbo vs naturally aspirated block
  192. High Pop Marine Injectors Pressure
  193. Slipping Fan Belt
  194. no start
  195. Timing Wrench
  196. optimizer 6500
  197. Battery solenoid
  198. 1995 K-1500 Vacuum Pump Replacement
  199. best radiator
  200. Take away DS4 = ECM response?
  201. How much should I spend on a 97 Cheyenne with a 6.5?
  202. Strange Vibration
  203. P400 Install
  204. Aftermarket head question
  205. Heater temps fluctuating
  206. Waste gate solenoid and black smoke
  207. What kills starters?
  208. Which auto tranny fluid?
  209. Don't Miss This!
  210. Pac Brake on a 6.5
  211. hx35w turboed 6.5's...how much power?
  212. Herzog Injectors?
  213. Engine tick
  214. Better Plenum Gasket?
  215. Optical Sensor Question
  216. Looking to upgrade the Yukon need a little help
  217. head lights
  218. FUEL Leaking into optical sensor connector?
  219. hard shudder under certain conditions...
  220. Batteries
  221. swapping out stock 1995 Suburban 480LE
  222. Towing uphill and going into a limp mode
  223. 98 Chev won't start -20
  224. opinions on buying a 6.5 suburban
  225. more (POWER)
  226. 40 HP Marine Injectors - Replacment Tech Helps Please?
  227. Help solving electrical problem
  228. 6.5 problems
  229. 40HP Marine Injectors vs. Stock Injector?
  230. Another Stalling Saga..... :-(
  231. How do I get to these turbo bolts off & drain tube bolts&hose?
  232. Fluid Damper Worth It?
  233. How do I bleed system after installing these new injectors?
  234. Obama's limo powered by 6.5L!!
  235. Vacuum line from Vacuum Pump
  236. k2500 Suburban doing 33.5 mpg... is he dreaming
  237. Need to buy a new injector pump, who from?
  238. Help no tach and alt gone nuts
  239. No start. Cold or ??
  240. Engine driven LP?
  241. Fuel to LP problem
  242. hello in here
  243. crank position sensor
  244. Batteries, Starter, or what??
  245. Premature Glowplug controller failure- causes?
  246. Hose Clamps Made in China
  247. Heat
  248. Chugging / shuddering in OD, tranny issue?
  249. One year gone.
  250. Cruise Control Kaputsky