: Northstar Engines and System Technical Discussion



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  1. 1994 eldorado fuel pump
  2. unchanged SP wires longevity?
  3. Launch Control for N* ignition
  4. coolant loss
  5. Can I fix my 01 Northstar myself?
  6. Turbo WOT 7psi to REDLINE
  7. 0101 MAF-continues
  8. Turbo Update
  9. changing out o2 sensor on 97 deville
  10. P0404 - Exhaust Gas Recirculation (EGR) Open Position Performance?
  11. deciphering DTC messages into plain English
  12. Cylinder Head Info!
  13. Northstar noise
  14. Best Code Reader/Scanner?
  15. EGR change w/ SS fuel rail- trick maybe
  16. Where is the INPUT SPEED SENSOR?
  17. 97 deville fuel problem
  18. GM coolant additive???
  19. Car wont start
  20. Serpentine belt
  21. no overdrive in my 98 eldo
  22. Really Head Gasket?
  23. New plugs and wires, now misfire
  24. STS Tranny trouble
  25. Improper Sparg plug gap, what happens?
  26. 94 STS hesitates or stumbles
  27. Need a Timesert kit
  28. its been a little while but i am back for good!!
  29. Stalls after fill-up
  30. High Oil Consumption *INFO*
  31. I got porked...Blown N*.
  32. Glowing red exhaust manifolds
  33. Pop Off / Backfire Valve Replacement
  34. fuel filter location?
  35. Pictures of Turbo Project
  36. Head gasket compressed thickness
  37. Emission Codes
  38. Extremely Rough Idle... Cracked Intake Manifold?
  39. Spark Plug Gap
  40. Biggest Problems with the N*'s?
  41. 1999 STS - Timesert question
  42. Gurgling Sound/ Trapped Air in Coolant System
  43. Injector
  44. 95 Deville howl's near the belt
  45. 97 deville N* head gasket costs?????
  46. No overdive
  47. Emmissions Codes
  48. One gear, LIMP MODE? NO CODES
  49. 2000 Deville TCC PWM replacement
  50. p056
  51. 98 Northstar Fuel Rail Recall
  52. Removing bad FPR
  53. '95 Eldorado start-up getting more "difficult"
  54. 93 Northstar Headgasket - Can I do it myself?
  55. Reliability and longevity of a 97 N* motor?
  56. Gas-saving gadgets article
  57. Crank Position Sensor
  58. 1993 1994 Northstar Intake Manifold
  59. How do I spot a head gasket starting to go?
  60. 97 deville radiator drain
  61. N* with code p041
  62. Intake mod
  63. Cold Start Backfire from 97 N*?
  64. OBD2 computer interface
  65. Jasper Verses OEM
  66. 1996 Eldorado Codes
  67. Piston Slap ?
  68. P0420 Code
  69. Northstar oil pump
  70. N*4.6 vibration problem
  71. Cooling system question
  72. Need an engine teardown pic...
  73. Cam Cover Gasket / o-ring replacement
  74. changing altn
  75. Reflash PCM on 96
  76. Link From Consumer Affairs to Dexcool Lawsuit Atty.
  77. Timesert Kit Needed Asap!!!
  78. Failed Emissions Test- But No Codes
  79. fpr fpr
  80. 1999 Northstar with blown head gasket
  81. Water pump??
  82. plugs and wires
  83. Changed TPS on 95 STS d/t P020, now MIL & P080
  84. throttle body cleaning was the answer
  85. Now having trouble in a different way
  86. 200 Deville occasionally won't Idle when starting warm
  87. P1406 Code? EGR?
  88. idle relearn and isc adjust
  89. 1993 Fuel Psi regulator
  90. Cracked Engine Block in 2001 DeVille
  91. 93 -99 N* vs 2000 - 2004, which is better
  92. motor mount...and more
  93. 97 deville leakin trans fluid
  94. MAF replacement
  95. too hot and too cold
  96. Does anybody here have full access to TSB info at alldata?
  97. Overheat SOLVED ! Thank You Ranger & Others
  98. '95 Northstar 4.6 oil leak
  99. Northstar Blower Motor For Sale
  100. 96 Deville running hot
  101. 97 deville stalling, no codes
  102. Changing Spark Plugs- '99 STS
  103. 94 sls overheating,maybe...
  104. I see a lot of posts on supercharging a Northstar
  105. How to get more torque, 03-DTS
  106. Replace or fix
  107. Typical NOOB questions...
  108. Northstar intake manifold
  109. Northstar intake manifold
  110. hey zonie or ranger,
  111. Losing Coolant & Radiator Leakage
  112. ac delco plugs..<-1999 and 2000-> years, whats the difference?
  113. Delco VS Bosch Plug Wires
  114. Oil "Blow By"
  115. Coming 6 speed automatic
  116. WOT - is this the ONLY way to remove carbon buildup?
  117. New source for 80mm throttle bodies!
  118. Is It A Head Gasket???
  119. Jasper Engines
  120. Confused about spark plug type
  121. Surge Tank Design
  122. Stranded out of town!!!
  123. Speed limiter
  124. cams in a northstar
  125. acceleration troubles...
  126. Coolant crossover photos
  127. P0300 Vote!
  128. the best oil for the northstar engine
  129. No Start Please I Need Help!!
  130. 3 questions regarding the timesert job
  131. fuel air mixture
  132. Replacing O2s
  133. P056
  134. Northstar V. 4.9
  135. 97 northstar engine miss
  136. Engine oil leak
  137. IN Trouble Now losing coolant
  138. ice possible message...?
  139. 96 deville oil leak
  140. Replacing a Northstar with a LS1
  141. i cant stand this stalling, why does this happen?
  142. 94STS Blown Gasket Pics
  143. 96 deville
  144. all my problems help!!!!
  145. adding a fuel treatment
  146. Is it normal for...
  147. Surging at low revs and hard shift into 2nd
  148. couple of problems, only one code- AMP B1024
  149. You want DYNO graphs?
  150. 98' Deville Waterpump
  151. The best northstar engine?
  152. How can I avoid head gasket damage?
  153. 93 Northstar Stalls with no codes
  154. '92 Seville radio question
  155. "Clunk" noise at startup? Trans Problem? Help!!
  156. fuel treatment
  157. Code P0101
  158. P023 code on 95 Eldorado
  159. 93 Eldo intermittent no spark,no start
  160. Motor change
  161. Injector malfunction Help!!!!
  162. Mod questions for a 2000 DeVille
  163. Sounds like a bird chirping
  164. 97 deville hesiatation!!!!!
  165. '96 STS OverHeating
  166. Head Gasket on 99 STS
  167. Pcv
  168. 02 DTS, Crank Sensor and Gas Mileage question, HELP!
  169. New solenoid valve kit if anyone wants it
  170. Northstar barely running
  171. Curious about performance mods...
  172. please idlee problemss help!
  173. Self scanning OBD while driving
  174. WOT advice for new member
  175. N* 1994 compatible with 1995????
  176. Coolant level? '97 Deville
  177. p1860 and p0741 repair help
  178. White Exhaust
  179. I have a code that's not on my list of codes. (P069)
  180. IAT sensor
  181. it ran so good in the past
  182. Leak Back Pressure Incorrect
  183. Code P1406 - EGR Valve Pintle Position Circuit
  184. HELP Rear Exhaust Flange Bolt Removal
  185. 02 STS simple things to help performance
  186. Groaning sound.....waterpump?
  187. Installing TPS right now.....
  188. help changed engine
  189. Throttle Body Service...is it worth$$?
  190. Throttle Body Cleaning, worth the hassel?
  191. Coolant Drain Plugs On the N*
  192. codes codes and more codes
  193. service.gm.com password?
  194. years headgaskets go bad?
  195. coolant smell help!
  196. sudden stalling
  197. Dyno results before turbo charging
  198. 4.6 Northstar Parts
  199. Head Gasket Problem!!!
  200. Just had timeserts installed.
  201. oil leak
  202. Loosing Oil and Burning Smell
  203. need info on 1999 cadillac deville engine
  204. Carbon Deposit HELP FAST
  205. ABS Question/New Engine
  206. 3rd or 2nd gear for brake help
  207. O2 sensor
  208. No2 + N* ???
  209. Engine seems to be knocking
  210. No cruise driving me nuts!!!
  211. Throttle body bolt torque specs
  212. Bad Smoke Help Please
  213. Coolant Flushing Pros/Cons?
  214. Hot start...but not the FPR!
  215. failed emissions test
  216. Has anyone had a headgasket leak oil?
  217. Low Oil Pressure Stop Engine !
  218. Carbon Deposit cleaning TEC
  219. Performance Programer 97 ETC??
  220. Ram Air
  221. Surging when cold
  222. N* comp&performance mods
  223. Recall SS and FPR
  224. NS block warp?
  225. 97 Etc Cpu Mods Or Other N* Perfromance
  226. Head gasket leak after
  227. Corrupt Miles.
  228. Anyone dyno their Caddy?
  229. Rough Running 97 DeVille
  230. Northster Squeel/Whistle
  231. Sweet exhaust smell?
  232. supercharging a 4.6L Northstar
  233. engine died in acceleration! wont start.
  234. T/C cut out assembly
  235. N* feels shuddery
  236. Well, changed the oil....
  237. Starter failure???
  238. GM Remanufactured Transmission...has
  239. Heater core intake line
  240. Stays in open loop (?)
  241. P039 Torque Converter Clutch/Viscous Converter Clutch Engagement Problem
  242. Top End Setting?
  243. Code- P0442
  244. Tune-UP this weekend; questions..
  245. Is this possible ?
  246. P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor I
  247. This whole WOT thing....
  248. Fuel Pressure for a 95 STS?
  249. Should I Worry About WOT?
  250. Oil level sensor question?