: Northstar Engines and System Technical Discussion



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  1. Code P0101
  2. P023 code on 95 Eldorado
  3. 93 Eldo intermittent no spark,no start
  4. Motor change
  5. Injector malfunction Help!!!!
  6. Mod questions for a 2000 DeVille
  7. Sounds like a bird chirping
  8. 97 deville hesiatation!!!!!
  9. '96 STS OverHeating
  10. Head Gasket on 99 STS
  11. Pcv
  12. 02 DTS, Crank Sensor and Gas Mileage question, HELP!
  13. New solenoid valve kit if anyone wants it
  14. Northstar barely running
  15. Curious about performance mods...
  16. please idlee problemss help!
  17. Self scanning OBD while driving
  18. WOT advice for new member
  19. N* 1994 compatible with 1995????
  20. Coolant level? '97 Deville
  21. p1860 and p0741 repair help
  22. White Exhaust
  23. I have a code that's not on my list of codes. (P069)
  24. IAT sensor
  25. it ran so good in the past
  26. Leak Back Pressure Incorrect
  27. Code P1406 - EGR Valve Pintle Position Circuit
  28. HELP Rear Exhaust Flange Bolt Removal
  29. 02 STS simple things to help performance
  30. Groaning sound.....waterpump?
  31. Installing TPS right now.....
  32. help changed engine
  33. Throttle Body Service...is it worth$$?
  34. Throttle Body Cleaning, worth the hassel?
  35. Coolant Drain Plugs On the N*
  36. codes codes and more codes
  37. service.gm.com password?
  38. years headgaskets go bad?
  39. coolant smell help!
  40. sudden stalling
  41. Dyno results before turbo charging
  42. 4.6 Northstar Parts
  43. Head Gasket Problem!!!
  44. Just had timeserts installed.
  45. oil leak
  46. Loosing Oil and Burning Smell
  47. need info on 1999 cadillac deville engine
  48. Carbon Deposit HELP FAST
  49. ABS Question/New Engine
  50. 3rd or 2nd gear for brake help
  51. O2 sensor
  52. No2 + N* ???
  53. Engine seems to be knocking
  54. No cruise driving me nuts!!!
  55. Throttle body bolt torque specs
  56. Bad Smoke Help Please
  57. Coolant Flushing Pros/Cons?
  58. Hot start...but not the FPR!
  59. failed emissions test
  60. Has anyone had a headgasket leak oil?
  61. Low Oil Pressure Stop Engine !
  62. Carbon Deposit cleaning TEC
  63. Performance Programer 97 ETC??
  64. Ram Air
  65. Surging when cold
  66. N* comp&performance mods
  67. Recall SS and FPR
  68. NS block warp?
  69. 97 Etc Cpu Mods Or Other N* Perfromance
  70. Head gasket leak after
  71. Corrupt Miles.
  72. Anyone dyno their Caddy?
  73. Rough Running 97 DeVille
  74. Northster Squeel/Whistle
  75. Sweet exhaust smell?
  76. supercharging a 4.6L Northstar
  77. engine died in acceleration! wont start.
  78. T/C cut out assembly
  79. N* feels shuddery
  80. Well, changed the oil....
  81. Starter failure???
  82. GM Remanufactured Transmission...has
  83. Heater core intake line
  84. Stays in open loop (?)
  85. P039 Torque Converter Clutch/Viscous Converter Clutch Engagement Problem
  86. Top End Setting?
  87. Code- P0442
  88. Tune-UP this weekend; questions..
  89. Is this possible ?
  90. P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor I
  91. This whole WOT thing....
  92. Fuel Pressure for a 95 STS?
  93. Should I Worry About WOT?
  94. Oil level sensor question?
  95. '97 NorthStar Coolant Temp
  96. 13mpg!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  97. P0139 - Heated Oxygen Sensor (HO2S) Slow Response Bank 1 Sensor 2
  98. throttle body cleaning
  99. Recommended fuel pressure + stalling
  100. 2000 ETC MPG Blew My Mind
  101. Installation/Removal of Temperature Sensor
  102. 93 sts
  103. Dropping Drive Train Axles Too?
  104. with the engine now out, what should I replace?
  105. Volant Intake For 2001-2004 4.6L Deville
  106. groan/rattling noise
  107. 1998 surging when accelerating
  108. Keeping a '97 NS running well
  109. 94 STS Help! Cooling Fans Inop
  110. prolonged cranking 1996 eldo
  111. stan_tampabay
  112. Long crank startups
  113. 2000 deville code hlep
  114. bad coolant temp sensor?
  115. www.steelseal.com
  116. 1994 Eldorado sometimes misfiring. Water in the Fuel?
  117. Ranger....Coolant Question
  118. Northstar Coolant Questions
  119. Replaced the MAP sensor
  120. Code problem, please help!!!
  121. Peformance of 2005 Cadillac Deville w/ Northstar
  122. HELP...car wont start
  123. Possible benefit from a grounding kit?
  124. Annoying Problem
  125. Northstar swap into a Buick Reatta
  126. Which side is the inj. harness on?
  127. 2000 n* into 1996
  128. Tensioner question
  129. 98 DeVille -Torque Trouble
  130. 93 Northstar Allante TPS Issues
  131. Oil light?
  132. 97 STS, low compression in all left bank cyls
  133. Help I027 SES Code came up After a W.O.T
  134. Starter revelation, ....for me anyhow!
  135. Fuel Pump and Erratic idle
  136. Is this a good price for a used N*?
  137. finding an alternative to timeserts
  138. need time sert kit for head gasket repair
  139. Oil filter?!?
  140. 96 DeVille losing coolant
  141. Prevention of Headgasket Trouble?
  142. How much could I get for it all? (N* project)
  143. Anybody have a 300hp northstar and a scan tool?
  144. Severe stumble
  145. last thing holding my cylinder head on... help!
  146. help with some codes
  147. W.o.t.
  148. flickering oil light
  149. Northstar repair
  150. exhaust question
  151. Coolant Problem Eatin My Money!!!!
  152. Tune UP
  153. W. O. T!
  154. Help!!! How do I remove the belt out of a 1999 Seville STS N* engine???
  155. Water Pump Confusion
  156. update - starting
  157. TPS values (PD01 PCM Data output)
  158. 94 SLS Smoked/Smelled and now Won't Start
  159. The Case Of The Dissapearing Oil?
  160. How To Pull Codes (DTC's)
  161. 98 DeVille starting trouble. Help!
  162. Double Flush?
  163. 2000 sls high idle
  164. 1998 Deville Tune-Up confusion
  165. 98 n* head bolts/inserts
  166. 97 Etc Engine Exchange...please Help
  167. 95 ETC Overheating Sometimes??
  168. 97 northstar still overheating
  169. People with stalling problems may want to look at this!!!
  170. NOOB needs some help!!... northstar blown!!!
  171. Loud snapping sound during startup/shutdown
  172. Question on maintanance
  173. Dex-Cool no longer made?
  174. Prestone Super Radiator Flush
  175. Popular choice for spark plugs in my 99 STS???
  176. removing the crank pulley
  177. Post Explosion Roughness
  178. Adjusting Tming (94 concours)
  179. 94 sls whats causing a high idle?!
  180. symtoms of bad wtr pump, 97 concours
  181. EGR valve location
  182. Bottom end/block from another engine?
  183. spark plug wires?
  184. Too Much Spent, Same Problem
  185. 1993 Exploding Intake Plenum
  186. STS Mufflers
  187. Why does dirty TB cause crazy idle?
  188. O2 Sensor
  189. Noisy engine
  190. 100000 mile maintenance
  191. Crank sensors
  192. Pictures of relocated PCM
  193. Reverse (ing) ...
  194. ??Smoking 96DeVille??
  195. head bolt torque settings
  196. Quick Oil Change Question....
  197. 01 STS stalls when stoped at light!
  198. getting the O2 sensor changed
  199. Fram Sure Drain
  200. Engine noise
  201. Piggyback computer is installed
  202. 98 Head Gasket Job
  203. 1993 Northstar
  204. 1998 Northstar For Sell
  205. 2002 DTS Spark Plugs
  206. Time serts pulling out of block
  207. 94 running hot!?????
  208. Tricky
  209. Old Fuel Rail Vs. New Fuel Rail
  210. Oil Leaks
  211. Found used NS, need advice.....
  212. Anyone else's N* tick at idle?
  213. Fuel Pressure Regulator and hot start problems
  214. HiPo Northstars in the house?
  215. Deville 96 Coolant leaking ...
  216. 1993 STS Rough Idle
  217. Oil pan bolt torque
  218. 96 Deville Northstar, No Oil Pressure out of the blue.
  219. So K&N air filter is no good?
  220. 93 Eldorado
  221. 98 deville hard starting
  222. check transmission message
  223. 99 deville/Northstar
  224. Opinions Needed
  225. Coolant supplement tabs not added at coolant change. Now what???
  226. 55.6 mpg
  227. 89in-lb? Seriously?
  228. transmission oil loss
  229. lean fuel mixture
  230. Has anybody bothered to check their Calculated Octane Rating on their OBDI Northstar?
  231. 98 STS airbox mod?
  232. cable acting up, white smoke 94 sls
  233. Trans Fluid Change Question
  234. Can anyone tell me if I have a bad head gasket
  235. Regular vs Premium Gas
  236. Po39
  237. My cheap-ass tune up
  238. head gasket and engine in-vehicle possible?
  239. 95 seville starter help!! plz look
  240. Possible Idling Problem?
  241. lifting out the '94 northstar.. please take a look
  242. My Nitrous project is under way...
  243. trans. leak
  244. c
  245. Coolant leak 98 DeVille and desparate
  246. Coolant leak and desparate
  247. Spark Plugs
  248. How about Eldo Performance Mods?
  249. new radiator, now engine overheats
  250. new radiator, now engine overheats