: Northstar Engines and System Technical Discussion



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  1. please help!?!?!?!?!
  2. High volt MAP
  3. Rough Idle and Stuttering Acceleration
  4. 94 seville sls oil pan gasket replacement...
  5. 97 headgaskets what else should be done?
  6. Differences in the Northstar engines
  7. PCM info for NorthStar
  8. accessing rear spark plugs
  9. 99 STS Turbo charged video
  10. 1994 Eldorado P083 Code?
  11. Looking for help with Codes
  12. What's this noise....
  13. How do you I.D. an engine?
  14. Expansion tank leaking...
  15. Engine ID
  16. 1994 eldorado fuel pump
  17. unchanged SP wires longevity?
  18. Launch Control for N* ignition
  19. coolant loss
  20. Can I fix my 01 Northstar myself?
  21. Turbo WOT 7psi to REDLINE
  22. 0101 MAF-continues
  23. Turbo Update
  24. changing out o2 sensor on 97 deville
  25. P0404 - Exhaust Gas Recirculation (EGR) Open Position Performance?
  26. deciphering DTC messages into plain English
  27. Cylinder Head Info!
  28. Northstar noise
  29. Best Code Reader/Scanner?
  30. EGR change w/ SS fuel rail- trick maybe
  31. Where is the INPUT SPEED SENSOR?
  32. 97 deville fuel problem
  33. GM coolant additive???
  34. Car wont start
  35. Serpentine belt
  36. no overdrive in my 98 eldo
  37. Really Head Gasket?
  38. New plugs and wires, now misfire
  39. STS Tranny trouble
  40. Improper Sparg plug gap, what happens?
  41. 94 STS hesitates or stumbles
  42. Need a Timesert kit
  43. its been a little while but i am back for good!!
  44. Stalls after fill-up
  45. High Oil Consumption *INFO*
  46. I got porked...Blown N*.
  47. Glowing red exhaust manifolds
  48. Pop Off / Backfire Valve Replacement
  49. fuel filter location?
  50. Pictures of Turbo Project
  51. Head gasket compressed thickness
  52. Emission Codes
  53. Extremely Rough Idle... Cracked Intake Manifold?
  54. Spark Plug Gap
  55. Biggest Problems with the N*'s?
  56. 1999 STS - Timesert question
  57. Gurgling Sound/ Trapped Air in Coolant System
  58. Injector
  59. 95 Deville howl's near the belt
  60. 97 deville N* head gasket costs?????
  61. No overdive
  62. Emmissions Codes
  63. One gear, LIMP MODE? NO CODES
  64. 2000 Deville TCC PWM replacement
  65. p056
  66. 98 Northstar Fuel Rail Recall
  67. Removing bad FPR
  68. '95 Eldorado start-up getting more "difficult"
  69. 93 Northstar Headgasket - Can I do it myself?
  70. Reliability and longevity of a 97 N* motor?
  71. Gas-saving gadgets article
  72. Crank Position Sensor
  73. 1993 1994 Northstar Intake Manifold
  74. How do I spot a head gasket starting to go?
  75. 97 deville radiator drain
  76. N* with code p041
  77. Intake mod
  78. Cold Start Backfire from 97 N*?
  79. OBD2 computer interface
  80. Jasper Verses OEM
  81. 1996 Eldorado Codes
  82. Piston Slap ?
  83. P0420 Code
  84. Northstar oil pump
  85. N*4.6 vibration problem
  86. Cooling system question
  87. Need an engine teardown pic...
  88. Cam Cover Gasket / o-ring replacement
  89. changing altn
  90. Reflash PCM on 96
  91. Link From Consumer Affairs to Dexcool Lawsuit Atty.
  92. Timesert Kit Needed Asap!!!
  93. Failed Emissions Test- But No Codes
  94. fpr fpr
  95. 1999 Northstar with blown head gasket
  96. Water pump??
  97. plugs and wires
  98. Changed TPS on 95 STS d/t P020, now MIL & P080
  99. throttle body cleaning was the answer
  100. Now having trouble in a different way
  101. 200 Deville occasionally won't Idle when starting warm
  102. P1406 Code? EGR?
  103. idle relearn and isc adjust
  104. 1993 Fuel Psi regulator
  105. Cracked Engine Block in 2001 DeVille
  106. 93 -99 N* vs 2000 - 2004, which is better
  107. motor mount...and more
  108. 97 deville leakin trans fluid
  109. MAF replacement
  110. too hot and too cold
  111. Does anybody here have full access to TSB info at alldata?
  112. Overheat SOLVED ! Thank You Ranger & Others
  113. '95 Northstar 4.6 oil leak
  114. Northstar Blower Motor For Sale
  115. 96 Deville running hot
  116. 97 deville stalling, no codes
  117. Changing Spark Plugs- '99 STS
  118. 94 sls overheating,maybe...
  119. I see a lot of posts on supercharging a Northstar
  120. How to get more torque, 03-DTS
  121. Replace or fix
  122. Typical NOOB questions...
  123. Northstar intake manifold
  124. Northstar intake manifold
  125. hey zonie or ranger,
  126. Losing Coolant & Radiator Leakage
  127. ac delco plugs..<-1999 and 2000-> years, whats the difference?
  128. Delco VS Bosch Plug Wires
  129. Oil "Blow By"
  130. Coming 6 speed automatic
  131. WOT - is this the ONLY way to remove carbon buildup?
  132. New source for 80mm throttle bodies!
  133. Is It A Head Gasket???
  134. Jasper Engines
  135. Confused about spark plug type
  136. Surge Tank Design
  137. Stranded out of town!!!
  138. Speed limiter
  139. cams in a northstar
  140. acceleration troubles...
  141. Coolant crossover photos
  142. P0300 Vote!
  143. the best oil for the northstar engine
  144. No Start Please I Need Help!!
  145. 3 questions regarding the timesert job
  146. fuel air mixture
  147. Replacing O2s
  148. P056
  149. Northstar V. 4.9
  150. 97 northstar engine miss
  151. Engine oil leak
  152. IN Trouble Now losing coolant
  153. ice possible message...?
  154. 96 deville oil leak
  155. Replacing a Northstar with a LS1
  156. i cant stand this stalling, why does this happen?
  157. 94STS Blown Gasket Pics
  158. 96 deville
  159. all my problems help!!!!
  160. adding a fuel treatment
  161. Is it normal for...
  162. Surging at low revs and hard shift into 2nd
  163. couple of problems, only one code- AMP B1024
  164. You want DYNO graphs?
  165. 98' Deville Waterpump
  166. The best northstar engine?
  167. How can I avoid head gasket damage?
  168. 93 Northstar Stalls with no codes
  169. '92 Seville radio question
  170. "Clunk" noise at startup? Trans Problem? Help!!
  171. fuel treatment
  172. Code P0101
  173. P023 code on 95 Eldorado
  174. 93 Eldo intermittent no spark,no start
  175. Motor change
  176. Injector malfunction Help!!!!
  177. Mod questions for a 2000 DeVille
  178. Sounds like a bird chirping
  179. 97 deville hesiatation!!!!!
  180. '96 STS OverHeating
  181. Head Gasket on 99 STS
  182. Pcv
  183. 02 DTS, Crank Sensor and Gas Mileage question, HELP!
  184. New solenoid valve kit if anyone wants it
  185. Northstar barely running
  186. Curious about performance mods...
  187. please idlee problemss help!
  188. Self scanning OBD while driving
  189. WOT advice for new member
  190. N* 1994 compatible with 1995????
  191. Coolant level? '97 Deville
  192. p1860 and p0741 repair help
  193. White Exhaust
  194. I have a code that's not on my list of codes. (P069)
  195. IAT sensor
  196. it ran so good in the past
  197. Leak Back Pressure Incorrect
  198. Code P1406 - EGR Valve Pintle Position Circuit
  199. HELP Rear Exhaust Flange Bolt Removal
  200. 02 STS simple things to help performance
  201. Groaning sound.....waterpump?
  202. Installing TPS right now.....
  203. help changed engine
  204. Throttle Body Service...is it worth$$?
  205. Throttle Body Cleaning, worth the hassel?
  206. Coolant Drain Plugs On the N*
  207. codes codes and more codes
  208. service.gm.com password?
  209. years headgaskets go bad?
  210. coolant smell help!
  211. sudden stalling
  212. Dyno results before turbo charging
  213. 4.6 Northstar Parts
  214. Head Gasket Problem!!!
  215. Just had timeserts installed.
  216. oil leak
  217. Loosing Oil and Burning Smell
  218. need info on 1999 cadillac deville engine
  219. Carbon Deposit HELP FAST
  220. ABS Question/New Engine
  221. 3rd or 2nd gear for brake help
  222. O2 sensor
  223. No2 + N* ???
  224. Engine seems to be knocking
  225. No cruise driving me nuts!!!
  226. Throttle body bolt torque specs
  227. Bad Smoke Help Please
  228. Coolant Flushing Pros/Cons?
  229. Hot start...but not the FPR!
  230. failed emissions test
  231. Has anyone had a headgasket leak oil?
  232. Low Oil Pressure Stop Engine !
  233. Carbon Deposit cleaning TEC
  234. Performance Programer 97 ETC??
  235. Ram Air
  236. Surging when cold
  237. N* comp&performance mods
  238. Recall SS and FPR
  239. NS block warp?
  240. 97 Etc Cpu Mods Or Other N* Perfromance
  241. Head gasket leak after
  242. Corrupt Miles.
  243. Anyone dyno their Caddy?
  244. Rough Running 97 DeVille
  245. Northster Squeel/Whistle
  246. Sweet exhaust smell?
  247. supercharging a 4.6L Northstar
  248. engine died in acceleration! wont start.
  249. T/C cut out assembly
  250. N* feels shuddery