: Northstar Engines and System Technical Discussion



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  1. Extremely Rough Idle... Cracked Intake Manifold?
  2. Spark Plug Gap
  3. Biggest Problems with the N*'s?
  4. 1999 STS - Timesert question
  5. Gurgling Sound/ Trapped Air in Coolant System
  6. Injector
  7. 95 Deville howl's near the belt
  8. 97 deville N* head gasket costs?????
  9. No overdive
  10. Emmissions Codes
  11. One gear, LIMP MODE? NO CODES
  12. 2000 Deville TCC PWM replacement
  13. p056
  14. 98 Northstar Fuel Rail Recall
  15. Removing bad FPR
  16. '95 Eldorado start-up getting more "difficult"
  17. 93 Northstar Headgasket - Can I do it myself?
  18. Reliability and longevity of a 97 N* motor?
  19. Gas-saving gadgets article
  20. Crank Position Sensor
  21. 1993 1994 Northstar Intake Manifold
  22. How do I spot a head gasket starting to go?
  23. 97 deville radiator drain
  24. N* with code p041
  25. Intake mod
  26. Cold Start Backfire from 97 N*?
  27. OBD2 computer interface
  28. Jasper Verses OEM
  29. 1996 Eldorado Codes
  30. Piston Slap ?
  31. P0420 Code
  32. Northstar oil pump
  33. N*4.6 vibration problem
  34. Cooling system question
  35. Need an engine teardown pic...
  36. Cam Cover Gasket / o-ring replacement
  37. changing altn
  38. Reflash PCM on 96
  39. Link From Consumer Affairs to Dexcool Lawsuit Atty.
  40. Timesert Kit Needed Asap!!!
  41. Failed Emissions Test- But No Codes
  42. fpr fpr
  43. 1999 Northstar with blown head gasket
  44. Water pump??
  45. plugs and wires
  46. Changed TPS on 95 STS d/t P020, now MIL & P080
  47. throttle body cleaning was the answer
  48. Now having trouble in a different way
  49. 200 Deville occasionally won't Idle when starting warm
  50. P1406 Code? EGR?
  51. idle relearn and isc adjust
  52. 1993 Fuel Psi regulator
  53. Cracked Engine Block in 2001 DeVille
  54. 93 -99 N* vs 2000 - 2004, which is better
  55. motor mount...and more
  56. 97 deville leakin trans fluid
  57. MAF replacement
  58. too hot and too cold
  59. Does anybody here have full access to TSB info at alldata?
  60. Overheat SOLVED ! Thank You Ranger & Others
  61. '95 Northstar 4.6 oil leak
  62. Northstar Blower Motor For Sale
  63. 96 Deville running hot
  64. 97 deville stalling, no codes
  65. Changing Spark Plugs- '99 STS
  66. 94 sls overheating,maybe...
  67. I see a lot of posts on supercharging a Northstar
  68. How to get more torque, 03-DTS
  69. Replace or fix
  70. Typical NOOB questions...
  71. Northstar intake manifold
  72. Northstar intake manifold
  73. hey zonie or ranger,
  74. Losing Coolant & Radiator Leakage
  75. ac delco plugs..<-1999 and 2000-> years, whats the difference?
  76. Delco VS Bosch Plug Wires
  77. Oil "Blow By"
  78. Coming 6 speed automatic
  79. WOT - is this the ONLY way to remove carbon buildup?
  80. New source for 80mm throttle bodies!
  81. Is It A Head Gasket???
  82. Jasper Engines
  83. Confused about spark plug type
  84. Surge Tank Design
  85. Stranded out of town!!!
  86. Speed limiter
  87. cams in a northstar
  88. acceleration troubles...
  89. Coolant crossover photos
  90. P0300 Vote!
  91. the best oil for the northstar engine
  92. No Start Please I Need Help!!
  93. 3 questions regarding the timesert job
  94. fuel air mixture
  95. Replacing O2s
  96. P056
  97. Northstar V. 4.9
  98. 97 northstar engine miss
  99. Engine oil leak
  100. IN Trouble Now losing coolant
  101. ice possible message...?
  102. 96 deville oil leak
  103. Replacing a Northstar with a LS1
  104. i cant stand this stalling, why does this happen?
  105. 94STS Blown Gasket Pics
  106. 96 deville
  107. all my problems help!!!!
  108. adding a fuel treatment
  109. Is it normal for...
  110. Surging at low revs and hard shift into 2nd
  111. couple of problems, only one code- AMP B1024
  112. You want DYNO graphs?
  113. 98' Deville Waterpump
  114. The best northstar engine?
  115. How can I avoid head gasket damage?
  116. 93 Northstar Stalls with no codes
  117. '92 Seville radio question
  118. "Clunk" noise at startup? Trans Problem? Help!!
  119. fuel treatment
  120. Code P0101
  121. P023 code on 95 Eldorado
  122. 93 Eldo intermittent no spark,no start
  123. Motor change
  124. Injector malfunction Help!!!!
  125. Mod questions for a 2000 DeVille
  126. Sounds like a bird chirping
  127. 97 deville hesiatation!!!!!
  128. '96 STS OverHeating
  129. Head Gasket on 99 STS
  130. Pcv
  131. 02 DTS, Crank Sensor and Gas Mileage question, HELP!
  132. New solenoid valve kit if anyone wants it
  133. Northstar barely running
  134. Curious about performance mods...
  135. please idlee problemss help!
  136. Self scanning OBD while driving
  137. WOT advice for new member
  138. N* 1994 compatible with 1995????
  139. Coolant level? '97 Deville
  140. p1860 and p0741 repair help
  141. White Exhaust
  142. I have a code that's not on my list of codes. (P069)
  143. IAT sensor
  144. it ran so good in the past
  145. Leak Back Pressure Incorrect
  146. Code P1406 - EGR Valve Pintle Position Circuit
  147. HELP Rear Exhaust Flange Bolt Removal
  148. 02 STS simple things to help performance
  149. Groaning sound.....waterpump?
  150. Installing TPS right now.....
  151. help changed engine
  152. Throttle Body Service...is it worth$$?
  153. Throttle Body Cleaning, worth the hassel?
  154. Coolant Drain Plugs On the N*
  155. codes codes and more codes
  156. service.gm.com password?
  157. years headgaskets go bad?
  158. coolant smell help!
  159. sudden stalling
  160. Dyno results before turbo charging
  161. 4.6 Northstar Parts
  162. Head Gasket Problem!!!
  163. Just had timeserts installed.
  164. oil leak
  165. Loosing Oil and Burning Smell
  166. need info on 1999 cadillac deville engine
  167. Carbon Deposit HELP FAST
  168. ABS Question/New Engine
  169. 3rd or 2nd gear for brake help
  170. O2 sensor
  171. No2 + N* ???
  172. Engine seems to be knocking
  173. No cruise driving me nuts!!!
  174. Throttle body bolt torque specs
  175. Bad Smoke Help Please
  176. Coolant Flushing Pros/Cons?
  177. Hot start...but not the FPR!
  178. failed emissions test
  179. Has anyone had a headgasket leak oil?
  180. Low Oil Pressure Stop Engine !
  181. Carbon Deposit cleaning TEC
  182. Performance Programer 97 ETC??
  183. Ram Air
  184. Surging when cold
  185. N* comp&performance mods
  186. Recall SS and FPR
  187. NS block warp?
  188. 97 Etc Cpu Mods Or Other N* Perfromance
  189. Head gasket leak after
  190. Corrupt Miles.
  191. Anyone dyno their Caddy?
  192. Rough Running 97 DeVille
  193. Northster Squeel/Whistle
  194. Sweet exhaust smell?
  195. supercharging a 4.6L Northstar
  196. engine died in acceleration! wont start.
  197. T/C cut out assembly
  198. N* feels shuddery
  199. Well, changed the oil....
  200. Starter failure???
  201. GM Remanufactured Transmission...has
  202. Heater core intake line
  203. Stays in open loop (?)
  204. P039 Torque Converter Clutch/Viscous Converter Clutch Engagement Problem
  205. Top End Setting?
  206. Code- P0442
  207. Tune-UP this weekend; questions..
  208. Is this possible ?
  209. P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor I
  210. This whole WOT thing....
  211. Fuel Pressure for a 95 STS?
  212. Should I Worry About WOT?
  213. Oil level sensor question?
  214. '97 NorthStar Coolant Temp
  215. 13mpg!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  216. P0139 - Heated Oxygen Sensor (HO2S) Slow Response Bank 1 Sensor 2
  217. throttle body cleaning
  218. Recommended fuel pressure + stalling
  219. 2000 ETC MPG Blew My Mind
  220. Installation/Removal of Temperature Sensor
  221. 93 sts
  222. Dropping Drive Train Axles Too?
  223. with the engine now out, what should I replace?
  224. Volant Intake For 2001-2004 4.6L Deville
  225. groan/rattling noise
  226. 1998 surging when accelerating
  227. Keeping a '97 NS running well
  228. 94 STS Help! Cooling Fans Inop
  229. prolonged cranking 1996 eldo
  230. stan_tampabay
  231. Long crank startups
  232. 2000 deville code hlep
  233. bad coolant temp sensor?
  234. www.steelseal.com
  235. 1994 Eldorado sometimes misfiring. Water in the Fuel?
  236. Ranger....Coolant Question
  237. Northstar Coolant Questions
  238. Replaced the MAP sensor
  239. Code problem, please help!!!
  240. Peformance of 2005 Cadillac Deville w/ Northstar
  241. HELP...car wont start
  242. Possible benefit from a grounding kit?
  243. Annoying Problem
  244. Northstar swap into a Buick Reatta
  245. Which side is the inj. harness on?
  246. 2000 n* into 1996
  247. Tensioner question
  248. 98 DeVille -Torque Trouble
  249. 93 Northstar Allante TPS Issues
  250. Oil light?