View Full Version : Northstar Performance and Technical Discussion


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  1. People with stalling problems may want to look at this!!!
  2. 97 northstar still overheating
  3. 95 ETC Overheating Sometimes??
  4. 97 Etc Engine Exchange...please Help
  5. 98 n* head bolts/inserts
  6. 1998 Deville Tune-Up confusion
  7. 2000 sls high idle
  8. Double Flush?
  9. 98 DeVille starting trouble. Help!
  10. Got codes? Look here!
  11. The Case Of The Dissapearing Oil?
  12. 94 SLS Smoked/Smelled and now Won't Start
  13. TPS values (PD01 PCM Data output)
  14. update - starting
  15. Water Pump Confusion
  16. Help!!! How do I remove the belt out of a 1999 Seville STS N* engine???
  17. W. O. T!
  18. Tune UP
  19. Coolant Problem Eatin My Money!!!!
  20. exhaust question
  21. Northstar repair
  22. flickering oil light
  23. W.o.t.
  24. help with some codes
  25. last thing holding my cylinder head on... help!
  26. Severe stumble
  27. Anybody have a 300hp northstar and a scan tool?
  28. How much could I get for it all? (N* project)
  29. Prevention of Headgasket Trouble?
  30. 96 DeVille losing coolant
  31. Oil filter?!?
  32. need time sert kit for head gasket repair
  33. finding an alternative to timeserts
  34. Is this a good price for a used N*?
  35. Fuel Pump and Erratic idle
  36. Starter revelation, ....for me anyhow!
  37. Help I027 SES Code came up After a W.O.T
  38. 97 STS, low compression in all left bank cyls
  39. Oil light?
  40. 93 Northstar Allante TPS Issues
  41. 98 DeVille -Torque Trouble
  42. Tensioner question
  43. 2000 n* into 1996
  44. Which side is the inj. harness on?
  45. Northstar swap into a Buick Reatta
  46. Annoying Problem
  47. Possible benefit from a grounding kit?
  48. HELP...car wont start
  49. Peformance of 2005 Cadillac Deville w/ Northstar
  50. Code problem, please help!!!
  51. Replaced the MAP sensor
  52. Northstar Coolant Questions
  53. Ranger....Coolant Question
  54. 1994 Eldorado sometimes misfiring. Water in the Fuel?
  55. www.steelseal.com
  56. bad coolant temp sensor?
  57. 2000 deville code hlep
  58. Long crank startups
  59. stan_tampabay
  60. prolonged cranking 1996 eldo
  61. 94 STS Help! Cooling Fans Inop
  62. Keeping a '97 NS running well
  63. 1998 surging when accelerating
  64. groan/rattling noise
  65. Volant Intake For 2001-2004 4.6L Deville
  66. with the engine now out, what should I replace?
  67. Dropping Drive Train Axles Too?
  68. 93 sts
  69. Installation/Removal of Temperature Sensor
  70. 2000 ETC MPG Blew My Mind
  71. Recommended fuel pressure + stalling
  72. throttle body cleaning
  73. P0139 - Heated Oxygen Sensor (HO2S) Slow Response Bank 1 Sensor 2
  74. 13mpg!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  75. '97 NorthStar Coolant Temp
  76. Oil level sensor question?
  77. Should I Worry About WOT?
  78. Fuel Pressure for a 95 STS?
  79. This whole WOT thing....
  80. P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor I
  81. Is this possible ?
  82. Tune-UP this weekend; questions..
  83. Code- P0442
  84. Top End Setting?
  85. P039 Torque Converter Clutch/Viscous Converter Clutch Engagement Problem
  86. Stays in open loop (?)
  87. Heater core intake line
  88. GM Remanufactured Transmission...has
  89. Starter failure???
  90. Well, changed the oil....
  91. N* feels shuddery
  92. T/C cut out assembly
  93. engine died in acceleration! wont start.
  94. supercharging a 4.6L Northstar
  95. Sweet exhaust smell?
  96. Northster Squeel/Whistle
  97. Rough Running 97 DeVille
  98. Anyone dyno their Caddy?
  99. Corrupt Miles.
  100. Head gasket leak after
  101. 97 Etc Cpu Mods Or Other N* Perfromance
  102. NS block warp?
  103. Recall SS and FPR
  104. N* comp&performance mods
  105. Surging when cold
  106. Ram Air
  107. Performance Programer 97 ETC??
  108. Carbon Deposit cleaning TEC
  109. Low Oil Pressure Stop Engine !
  110. Has anyone had a headgasket leak oil?
  111. failed emissions test
  112. Hot start...but not the FPR!
  113. Coolant Flushing Pros/Cons?
  114. Bad Smoke Help Please
  115. Throttle body bolt torque specs
  116. No cruise driving me nuts!!!
  117. Engine seems to be knocking
  118. No2 + N* ???
  119. O2 sensor
  120. 3rd or 2nd gear for brake help
  121. ABS Question/New Engine
  122. Carbon Deposit HELP FAST
  123. need info on 1999 cadillac deville engine
  124. Loosing Oil and Burning Smell
  125. oil leak
  126. Just had timeserts installed.
  127. Head Gasket Problem!!!
  128. 4.6 Northstar Parts
  129. Dyno results before turbo charging
  130. sudden stalling
  131. coolant smell help!
  132. years headgaskets go bad?
  133. service.gm.com password?
  134. codes codes and more codes
  135. Coolant Drain Plugs On the N*
  136. Throttle Body Cleaning, worth the hassel?
  137. Throttle Body Service...is it worth$$?
  138. help changed engine
  139. Installing TPS right now.....
  140. Groaning sound.....waterpump?
  141. 02 STS simple things to help performance
  142. HELP Rear Exhaust Flange Bolt Removal
  143. Code P1406 - EGR Valve Pintle Position Circuit
  144. Leak Back Pressure Incorrect
  145. it ran so good in the past
  146. IAT sensor
  147. I have a code that's not on my list of codes. (P069)
  148. White Exhaust
  149. p1860 and p0741 repair help
  150. Coolant level? '97 Deville
  151. N* 1994 compatible with 1995????
  152. WOT advice for new member
  153. Self scanning OBD while driving
  154. please idlee problemss help!
  155. Curious about performance mods...
  156. Northstar barely running
  157. New solenoid valve kit if anyone wants it
  158. 02 DTS, Crank Sensor and Gas Mileage question, HELP!
  159. Pcv
  160. Head Gasket on 99 STS
  161. '96 STS OverHeating
  162. 97 deville hesiatation!!!!!
  163. Sounds like a bird chirping
  164. Mod questions for a 2000 DeVille
  165. Injector malfunction Help!!!!
  166. Motor change
  167. 93 Eldo intermittent no spark,no start
  168. P023 code on 95 Eldorado
  169. Code P0101
  170. fuel treatment
  171. "Clunk" noise at startup? Trans Problem? Help!!
  172. '92 Seville radio question
  173. 93 Northstar Stalls with no codes
  174. How can I avoid head gasket damage?
  175. The best northstar engine?
  176. 98' Deville Waterpump
  177. You want DYNO graphs?
  178. couple of problems, only one code- AMP B1024
  179. Surging at low revs and hard shift into 2nd
  180. Is it normal for...
  181. adding a fuel treatment
  182. all my problems help!!!!
  183. 96 deville
  184. 94STS Blown Gasket Pics
  185. i cant stand this stalling, why does this happen?
  186. Replacing a Northstar with a LS1
  187. 96 deville oil leak
  188. ice possible message...?
  189. IN Trouble Now losing coolant
  190. Engine oil leak
  191. 97 northstar engine miss
  192. Northstar V. 4.9
  193. P056
  194. Replacing O2s
  195. fuel air mixture
  196. 3 questions regarding the timesert job
  197. No Start Please I Need Help!!
  198. the best oil for the northstar engine
  199. P0300 Vote!
  200. Coolant crossover photos
  201. acceleration troubles...
  202. cams in a northstar
  203. Speed limiter
  204. Stranded out of town!!!
  205. Surge Tank Design
  206. Confused about spark plug type
  207. Jasper Engines
  208. Is It A Head Gasket???
  209. New source for 80mm throttle bodies!
  210. WOT - is this the ONLY way to remove carbon buildup?
  211. Coming 6 speed automatic
  212. Oil "Blow By"
  213. Delco VS Bosch Plug Wires
  214. ac delco plugs..<-1999 and 2000-> years, whats the difference?
  215. Losing Coolant & Radiator Leakage
  216. hey zonie or ranger,
  217. Northstar intake manifold
  218. Northstar intake manifold
  219. Typical NOOB questions...
  220. Replace or fix
  221. How to get more torque, 03-DTS
  222. I see a lot of posts on supercharging a Northstar
  223. 94 sls overheating,maybe...
  224. Changing Spark Plugs- '99 Seville STS
  225. 97 deville stalling, no codes
  226. 96 Deville running hot
  227. Northstar Blower Motor For Sale
  228. '95 Northstar 4.6 oil leak
  229. Overheat SOLVED ! Thank You Ranger & Others
  230. Does anybody here have full access to TSB info at alldata?
  231. too hot and too cold
  232. MAF replacement
  233. 97 deville leakin trans fluid
  234. motor mount...and more
  235. 93 -99 N* vs 2000 - 2004, which is better
  236. Cracked Engine Block in 2001 DeVille
  237. 1993 Fuel Psi regulator
  238. idle relearn and isc adjust
  239. P1406 Code? EGR?
  240. 200 Deville occasionally won't Idle when starting warm
  241. Now having trouble in a different way
  242. throttle body cleaning was the answer
  243. Changed TPS on 95 STS d/t P020, now MIL & P080
  244. plugs and wires
  245. Water pump??
  246. 1999 Northstar with blown head gasket
  247. fpr fpr
  248. Failed Emissions Test- But No Codes
  249. Timesert Kit Needed Asap!!!
  250. Link From Consumer Affairs to Dexcool Lawsuit Atty.