: Northstar Engines and System Technical Discussion



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  1. 94 STS hesitates or stumbles
  2. Need a Timesert kit
  3. its been a little while but i am back for good!!
  4. Stalls after fill-up
  5. High Oil Consumption *INFO*
  6. I got porked...Blown N*.
  7. Glowing red exhaust manifolds
  8. Pop Off / Backfire Valve Replacement
  9. fuel filter location?
  10. Pictures of Turbo Project
  11. Head gasket compressed thickness
  12. Emission Codes
  13. Extremely Rough Idle... Cracked Intake Manifold?
  14. Spark Plug Gap
  15. Biggest Problems with the N*'s?
  16. 1999 STS - Timesert question
  17. Gurgling Sound/ Trapped Air in Coolant System
  18. Injector
  19. 95 Deville howl's near the belt
  20. 97 deville N* head gasket costs?????
  21. No overdive
  22. Emmissions Codes
  23. One gear, LIMP MODE? NO CODES
  24. 2000 Deville TCC PWM replacement
  25. p056
  26. 98 Northstar Fuel Rail Recall
  27. Removing bad FPR
  28. '95 Eldorado start-up getting more "difficult"
  29. 93 Northstar Headgasket - Can I do it myself?
  30. Reliability and longevity of a 97 N* motor?
  31. Gas-saving gadgets article
  32. Crank Position Sensor
  33. 1993 1994 Northstar Intake Manifold
  34. How do I spot a head gasket starting to go?
  35. 97 deville radiator drain
  36. N* with code p041
  37. Intake mod
  38. Cold Start Backfire from 97 N*?
  39. OBD2 computer interface
  40. Jasper Verses OEM
  41. 1996 Eldorado Codes
  42. Piston Slap ?
  43. P0420 Code
  44. Northstar oil pump
  45. N*4.6 vibration problem
  46. Cooling system question
  47. Need an engine teardown pic...
  48. Cam Cover Gasket / o-ring replacement
  49. changing altn
  50. Reflash PCM on 96
  51. Link From Consumer Affairs to Dexcool Lawsuit Atty.
  52. Timesert Kit Needed Asap!!!
  53. Failed Emissions Test- But No Codes
  54. fpr fpr
  55. 1999 Northstar with blown head gasket
  56. Water pump??
  57. plugs and wires
  58. Changed TPS on 95 STS d/t P020, now MIL & P080
  59. throttle body cleaning was the answer
  60. Now having trouble in a different way
  61. 200 Deville occasionally won't Idle when starting warm
  62. P1406 Code? EGR?
  63. idle relearn and isc adjust
  64. 1993 Fuel Psi regulator
  65. Cracked Engine Block in 2001 DeVille
  66. 93 -99 N* vs 2000 - 2004, which is better
  67. motor mount...and more
  68. 97 deville leakin trans fluid
  69. MAF replacement
  70. too hot and too cold
  71. Does anybody here have full access to TSB info at alldata?
  72. Overheat SOLVED ! Thank You Ranger & Others
  73. '95 Northstar 4.6 oil leak
  74. Northstar Blower Motor For Sale
  75. 96 Deville running hot
  76. 97 deville stalling, no codes
  77. Changing Spark Plugs- '99 STS
  78. 94 sls overheating,maybe...
  79. I see a lot of posts on supercharging a Northstar
  80. How to get more torque, 03-DTS
  81. Replace or fix
  82. Typical NOOB questions...
  83. Northstar intake manifold
  84. Northstar intake manifold
  85. hey zonie or ranger,
  86. Losing Coolant & Radiator Leakage
  87. ac delco plugs..<-1999 and 2000-> years, whats the difference?
  88. Delco VS Bosch Plug Wires
  89. Oil "Blow By"
  90. Coming 6 speed automatic
  91. WOT - is this the ONLY way to remove carbon buildup?
  92. New source for 80mm throttle bodies!
  93. Is It A Head Gasket???
  94. Jasper Engines
  95. Confused about spark plug type
  96. Surge Tank Design
  97. Stranded out of town!!!
  98. Speed limiter
  99. cams in a northstar
  100. acceleration troubles...
  101. Coolant crossover photos
  102. P0300 Vote!
  103. the best oil for the northstar engine
  104. No Start Please I Need Help!!
  105. 3 questions regarding the timesert job
  106. fuel air mixture
  107. Replacing O2s
  108. P056
  109. Northstar V. 4.9
  110. 97 northstar engine miss
  111. Engine oil leak
  112. IN Trouble Now losing coolant
  113. ice possible message...?
  114. 96 deville oil leak
  115. Replacing a Northstar with a LS1
  116. i cant stand this stalling, why does this happen?
  117. 94STS Blown Gasket Pics
  118. 96 deville
  119. all my problems help!!!!
  120. adding a fuel treatment
  121. Is it normal for...
  122. Surging at low revs and hard shift into 2nd
  123. couple of problems, only one code- AMP B1024
  124. You want DYNO graphs?
  125. 98' Deville Waterpump
  126. The best northstar engine?
  127. How can I avoid head gasket damage?
  128. 93 Northstar Stalls with no codes
  129. '92 Seville radio question
  130. "Clunk" noise at startup? Trans Problem? Help!!
  131. fuel treatment
  132. Code P0101
  133. P023 code on 95 Eldorado
  134. 93 Eldo intermittent no spark,no start
  135. Motor change
  136. Injector malfunction Help!!!!
  137. Mod questions for a 2000 DeVille
  138. Sounds like a bird chirping
  139. 97 deville hesiatation!!!!!
  140. '96 STS OverHeating
  141. Head Gasket on 99 STS
  142. Pcv
  143. 02 DTS, Crank Sensor and Gas Mileage question, HELP!
  144. New solenoid valve kit if anyone wants it
  145. Northstar barely running
  146. Curious about performance mods...
  147. please idlee problemss help!
  148. Self scanning OBD while driving
  149. WOT advice for new member
  150. N* 1994 compatible with 1995????
  151. Coolant level? '97 Deville
  152. p1860 and p0741 repair help
  153. White Exhaust
  154. I have a code that's not on my list of codes. (P069)
  155. IAT sensor
  156. it ran so good in the past
  157. Leak Back Pressure Incorrect
  158. Code P1406 - EGR Valve Pintle Position Circuit
  159. HELP Rear Exhaust Flange Bolt Removal
  160. 02 STS simple things to help performance
  161. Groaning sound.....waterpump?
  162. Installing TPS right now.....
  163. help changed engine
  164. Throttle Body Service...is it worth$$?
  165. Throttle Body Cleaning, worth the hassel?
  166. Coolant Drain Plugs On the N*
  167. codes codes and more codes
  168. service.gm.com password?
  169. years headgaskets go bad?
  170. coolant smell help!
  171. sudden stalling
  172. Dyno results before turbo charging
  173. 4.6 Northstar Parts
  174. Head Gasket Problem!!!
  175. Just had timeserts installed.
  176. oil leak
  177. Loosing Oil and Burning Smell
  178. need info on 1999 cadillac deville engine
  179. Carbon Deposit HELP FAST
  180. ABS Question/New Engine
  181. 3rd or 2nd gear for brake help
  182. O2 sensor
  183. No2 + N* ???
  184. Engine seems to be knocking
  185. No cruise driving me nuts!!!
  186. Throttle body bolt torque specs
  187. Bad Smoke Help Please
  188. Coolant Flushing Pros/Cons?
  189. Hot start...but not the FPR!
  190. failed emissions test
  191. Has anyone had a headgasket leak oil?
  192. Low Oil Pressure Stop Engine !
  193. Carbon Deposit cleaning TEC
  194. Performance Programer 97 ETC??
  195. Ram Air
  196. Surging when cold
  197. N* comp&performance mods
  198. Recall SS and FPR
  199. NS block warp?
  200. 97 Etc Cpu Mods Or Other N* Perfromance
  201. Head gasket leak after
  202. Corrupt Miles.
  203. Anyone dyno their Caddy?
  204. Rough Running 97 DeVille
  205. Northster Squeel/Whistle
  206. Sweet exhaust smell?
  207. supercharging a 4.6L Northstar
  208. engine died in acceleration! wont start.
  209. T/C cut out assembly
  210. N* feels shuddery
  211. Well, changed the oil....
  212. Starter failure???
  213. GM Remanufactured Transmission...has
  214. Heater core intake line
  215. Stays in open loop (?)
  216. P039 Torque Converter Clutch/Viscous Converter Clutch Engagement Problem
  217. Top End Setting?
  218. Code- P0442
  219. Tune-UP this weekend; questions..
  220. Is this possible ?
  221. P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor I
  222. This whole WOT thing....
  223. Fuel Pressure for a 95 STS?
  224. Should I Worry About WOT?
  225. Oil level sensor question?
  226. '97 NorthStar Coolant Temp
  227. 13mpg!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  228. P0139 - Heated Oxygen Sensor (HO2S) Slow Response Bank 1 Sensor 2
  229. throttle body cleaning
  230. Recommended fuel pressure + stalling
  231. 2000 ETC MPG Blew My Mind
  232. Installation/Removal of Temperature Sensor
  233. 93 sts
  234. Dropping Drive Train Axles Too?
  235. with the engine now out, what should I replace?
  236. Volant Intake For 2001-2004 4.6L Deville
  237. groan/rattling noise
  238. 1998 surging when accelerating
  239. Keeping a '97 NS running well
  240. 94 STS Help! Cooling Fans Inop
  241. prolonged cranking 1996 eldo
  242. stan_tampabay
  243. Long crank startups
  244. 2000 deville code hlep
  245. bad coolant temp sensor?
  246. www.steelseal.com
  247. 1994 Eldorado sometimes misfiring. Water in the Fuel?
  248. Ranger....Coolant Question
  249. Northstar Coolant Questions
  250. Replaced the MAP sensor