: Northstar Engines and System Technical Discussion



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  1. Motor change
  2. Injector malfunction Help!!!!
  3. Mod questions for a 2000 DeVille
  4. Sounds like a bird chirping
  5. 97 deville hesiatation!!!!!
  6. '96 STS OverHeating
  7. Head Gasket on 99 STS
  8. Pcv
  9. 02 DTS, Crank Sensor and Gas Mileage question, HELP!
  10. New solenoid valve kit if anyone wants it
  11. Northstar barely running
  12. Curious about performance mods...
  13. please idlee problemss help!
  14. Self scanning OBD while driving
  15. WOT advice for new member
  16. N* 1994 compatible with 1995????
  17. Coolant level? '97 Deville
  18. p1860 and p0741 repair help
  19. White Exhaust
  20. I have a code that's not on my list of codes. (P069)
  21. IAT sensor
  22. it ran so good in the past
  23. Leak Back Pressure Incorrect
  24. Code P1406 - EGR Valve Pintle Position Circuit
  25. HELP Rear Exhaust Flange Bolt Removal
  26. 02 STS simple things to help performance
  27. Groaning sound.....waterpump?
  28. Installing TPS right now.....
  29. help changed engine
  30. Throttle Body Service...is it worth$$?
  31. Throttle Body Cleaning, worth the hassel?
  32. Coolant Drain Plugs On the N*
  33. codes codes and more codes
  34. service.gm.com password?
  35. years headgaskets go bad?
  36. coolant smell help!
  37. sudden stalling
  38. Dyno results before turbo charging
  39. 4.6 Northstar Parts
  40. Head Gasket Problem!!!
  41. Just had timeserts installed.
  42. oil leak
  43. Loosing Oil and Burning Smell
  44. need info on 1999 cadillac deville engine
  45. Carbon Deposit HELP FAST
  46. ABS Question/New Engine
  47. 3rd or 2nd gear for brake help
  48. O2 sensor
  49. No2 + N* ???
  50. Engine seems to be knocking
  51. No cruise driving me nuts!!!
  52. Throttle body bolt torque specs
  53. Bad Smoke Help Please
  54. Coolant Flushing Pros/Cons?
  55. Hot start...but not the FPR!
  56. failed emissions test
  57. Has anyone had a headgasket leak oil?
  58. Low Oil Pressure Stop Engine !
  59. Carbon Deposit cleaning TEC
  60. Performance Programer 97 ETC??
  61. Ram Air
  62. Surging when cold
  63. N* comp&performance mods
  64. Recall SS and FPR
  65. NS block warp?
  66. 97 Etc Cpu Mods Or Other N* Perfromance
  67. Head gasket leak after
  68. Corrupt Miles.
  69. Anyone dyno their Caddy?
  70. Rough Running 97 DeVille
  71. Northster Squeel/Whistle
  72. Sweet exhaust smell?
  73. supercharging a 4.6L Northstar
  74. engine died in acceleration! wont start.
  75. T/C cut out assembly
  76. N* feels shuddery
  77. Well, changed the oil....
  78. Starter failure???
  79. GM Remanufactured Transmission...has
  80. Heater core intake line
  81. Stays in open loop (?)
  82. P039 Torque Converter Clutch/Viscous Converter Clutch Engagement Problem
  83. Top End Setting?
  84. Code- P0442
  85. Tune-UP this weekend; questions..
  86. Is this possible ?
  87. P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor I
  88. This whole WOT thing....
  89. Fuel Pressure for a 95 STS?
  90. Should I Worry About WOT?
  91. Oil level sensor question?
  92. '97 NorthStar Coolant Temp
  93. 13mpg!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  94. P0139 - Heated Oxygen Sensor (HO2S) Slow Response Bank 1 Sensor 2
  95. throttle body cleaning
  96. Recommended fuel pressure + stalling
  97. 2000 ETC MPG Blew My Mind
  98. Installation/Removal of Temperature Sensor
  99. 93 sts
  100. Dropping Drive Train Axles Too?
  101. with the engine now out, what should I replace?
  102. Volant Intake For 2001-2004 4.6L Deville
  103. groan/rattling noise
  104. 1998 surging when accelerating
  105. Keeping a '97 NS running well
  106. 94 STS Help! Cooling Fans Inop
  107. prolonged cranking 1996 eldo
  108. stan_tampabay
  109. Long crank startups
  110. 2000 deville code hlep
  111. bad coolant temp sensor?
  112. www.steelseal.com
  113. 1994 Eldorado sometimes misfiring. Water in the Fuel?
  114. Ranger....Coolant Question
  115. Northstar Coolant Questions
  116. Replaced the MAP sensor
  117. Code problem, please help!!!
  118. Peformance of 2005 Cadillac Deville w/ Northstar
  119. HELP...car wont start
  120. Possible benefit from a grounding kit?
  121. Annoying Problem
  122. Northstar swap into a Buick Reatta
  123. Which side is the inj. harness on?
  124. 2000 n* into 1996
  125. Tensioner question
  126. 98 DeVille -Torque Trouble
  127. 93 Northstar Allante TPS Issues
  128. Oil light?
  129. 97 STS, low compression in all left bank cyls
  130. Help I027 SES Code came up After a W.O.T
  131. Starter revelation, ....for me anyhow!
  132. Fuel Pump and Erratic idle
  133. Is this a good price for a used N*?
  134. finding an alternative to timeserts
  135. need time sert kit for head gasket repair
  136. Oil filter?!?
  137. 96 DeVille losing coolant
  138. Prevention of Headgasket Trouble?
  139. How much could I get for it all? (N* project)
  140. Anybody have a 300hp northstar and a scan tool?
  141. Severe stumble
  142. last thing holding my cylinder head on... help!
  143. help with some codes
  144. W.o.t.
  145. flickering oil light
  146. Northstar repair
  147. exhaust question
  148. Coolant Problem Eatin My Money!!!!
  149. Tune UP
  150. W. O. T!
  151. Help!!! How do I remove the belt out of a 1999 Seville STS N* engine???
  152. Water Pump Confusion
  153. update - starting
  154. TPS values (PD01 PCM Data output)
  155. 94 SLS Smoked/Smelled and now Won't Start
  156. The Case Of The Dissapearing Oil?
  157. How To Pull Codes (DTC's)
  158. 98 DeVille starting trouble. Help!
  159. Double Flush?
  160. 2000 sls high idle
  161. 1998 Deville Tune-Up confusion
  162. 98 n* head bolts/inserts
  163. 97 Etc Engine Exchange...please Help
  164. 95 ETC Overheating Sometimes??
  165. 97 northstar still overheating
  166. People with stalling problems may want to look at this!!!
  167. NOOB needs some help!!... northstar blown!!!
  168. Loud snapping sound during startup/shutdown
  169. Question on maintanance
  170. Dex-Cool no longer made?
  171. Prestone Super Radiator Flush
  172. Popular choice for spark plugs in my 99 STS???
  173. removing the crank pulley
  174. Post Explosion Roughness
  175. Adjusting Tming (94 concours)
  176. 94 sls whats causing a high idle?!
  177. symtoms of bad wtr pump, 97 concours
  178. EGR valve location
  179. Bottom end/block from another engine?
  180. spark plug wires?
  181. Too Much Spent, Same Problem
  182. 1993 Exploding Intake Plenum
  183. STS Mufflers
  184. Why does dirty TB cause crazy idle?
  185. O2 Sensor
  186. Noisy engine
  187. 100000 mile maintenance
  188. Crank sensors
  189. Pictures of relocated PCM
  190. Reverse (ing) ...
  191. ??Smoking 96DeVille??
  192. head bolt torque settings
  193. Quick Oil Change Question....
  194. 01 STS stalls when stoped at light!
  195. getting the O2 sensor changed
  196. Fram Sure Drain
  197. Engine noise
  198. Piggyback computer is installed
  199. 98 Head Gasket Job
  200. 1993 Northstar
  201. 1998 Northstar For Sell
  202. 2002 DTS Spark Plugs
  203. Time serts pulling out of block
  204. 94 running hot!?????
  205. Tricky
  206. Old Fuel Rail Vs. New Fuel Rail
  207. Oil Leaks
  208. Found used NS, need advice.....
  209. Anyone else's N* tick at idle?
  210. Fuel Pressure Regulator and hot start problems
  211. HiPo Northstars in the house?
  212. Deville 96 Coolant leaking ...
  213. 1993 STS Rough Idle
  214. Oil pan bolt torque
  215. 96 Deville Northstar, No Oil Pressure out of the blue.
  216. So K&N air filter is no good?
  217. 93 Eldorado
  218. 98 deville hard starting
  219. check transmission message
  220. 99 deville/Northstar
  221. Opinions Needed
  222. Coolant supplement tabs not added at coolant change. Now what???
  223. 55.6 mpg
  224. 89in-lb? Seriously?
  225. transmission oil loss
  226. lean fuel mixture
  227. Has anybody bothered to check their Calculated Octane Rating on their OBDI Northstar?
  228. 98 STS airbox mod?
  229. cable acting up, white smoke 94 sls
  230. Trans Fluid Change Question
  231. Can anyone tell me if I have a bad head gasket
  232. Regular vs Premium Gas
  233. Po39
  234. My cheap-ass tune up
  235. head gasket and engine in-vehicle possible?
  236. 95 seville starter help!! plz look
  237. Possible Idling Problem?
  238. lifting out the '94 northstar.. please take a look
  239. My Nitrous project is under way...
  240. trans. leak
  241. c
  242. Coolant leak 98 DeVille and desparate
  243. Coolant leak and desparate
  244. Spark Plugs
  245. How about Eldo Performance Mods?
  246. new radiator, now engine overheats
  247. new radiator, now engine overheats
  248. Parts lookup by GM part #?? is it possible?
  249. Flushing 4T80E....how many quarts of fluid?
  250. changing PCValve on 94 eldorado