: Northstar Engines and System Technical Discussion



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  1. Code P1406 - EGR Valve Pintle Position Circuit
  2. HELP Rear Exhaust Flange Bolt Removal
  3. 02 STS simple things to help performance
  4. Groaning sound.....waterpump?
  5. Installing TPS right now.....
  6. help changed engine
  7. Throttle Body Service...is it worth$$?
  8. Throttle Body Cleaning, worth the hassel?
  9. Coolant Drain Plugs On the N*
  10. codes codes and more codes
  11. service.gm.com password?
  12. years headgaskets go bad?
  13. coolant smell help!
  14. sudden stalling
  15. Dyno results before turbo charging
  16. 4.6 Northstar Parts
  17. Head Gasket Problem!!!
  18. Just had timeserts installed.
  19. oil leak
  20. Loosing Oil and Burning Smell
  21. need info on 1999 cadillac deville engine
  22. Carbon Deposit HELP FAST
  23. ABS Question/New Engine
  24. 3rd or 2nd gear for brake help
  25. O2 sensor
  26. No2 + N* ???
  27. Engine seems to be knocking
  28. No cruise driving me nuts!!!
  29. Throttle body bolt torque specs
  30. Bad Smoke Help Please
  31. Coolant Flushing Pros/Cons?
  32. Hot start...but not the FPR!
  33. failed emissions test
  34. Has anyone had a headgasket leak oil?
  35. Low Oil Pressure Stop Engine !
  36. Carbon Deposit cleaning TEC
  37. Performance Programer 97 ETC??
  38. Ram Air
  39. Surging when cold
  40. N* comp&performance mods
  41. Recall SS and FPR
  42. NS block warp?
  43. 97 Etc Cpu Mods Or Other N* Perfromance
  44. Head gasket leak after
  45. Corrupt Miles.
  46. Anyone dyno their Caddy?
  47. Rough Running 97 DeVille
  48. Northster Squeel/Whistle
  49. Sweet exhaust smell?
  50. supercharging a 4.6L Northstar
  51. engine died in acceleration! wont start.
  52. T/C cut out assembly
  53. N* feels shuddery
  54. Well, changed the oil....
  55. Starter failure???
  56. GM Remanufactured Transmission...has
  57. Heater core intake line
  58. Stays in open loop (?)
  59. P039 Torque Converter Clutch/Viscous Converter Clutch Engagement Problem
  60. Top End Setting?
  61. Code- P0442
  62. Tune-UP this weekend; questions..
  63. Is this possible ?
  64. P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor I
  65. This whole WOT thing....
  66. Fuel Pressure for a 95 STS?
  67. Should I Worry About WOT?
  68. Oil level sensor question?
  69. '97 NorthStar Coolant Temp
  70. 13mpg!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  71. P0139 - Heated Oxygen Sensor (HO2S) Slow Response Bank 1 Sensor 2
  72. throttle body cleaning
  73. Recommended fuel pressure + stalling
  74. 2000 ETC MPG Blew My Mind
  75. Installation/Removal of Temperature Sensor
  76. 93 sts
  77. Dropping Drive Train Axles Too?
  78. with the engine now out, what should I replace?
  79. Volant Intake For 2001-2004 4.6L Deville
  80. groan/rattling noise
  81. 1998 surging when accelerating
  82. Keeping a '97 NS running well
  83. 94 STS Help! Cooling Fans Inop
  84. prolonged cranking 1996 eldo
  85. stan_tampabay
  86. Long crank startups
  87. 2000 deville code hlep
  88. bad coolant temp sensor?
  89. www.steelseal.com
  90. 1994 Eldorado sometimes misfiring. Water in the Fuel?
  91. Ranger....Coolant Question
  92. Northstar Coolant Questions
  93. Replaced the MAP sensor
  94. Code problem, please help!!!
  95. Peformance of 2005 Cadillac Deville w/ Northstar
  96. HELP...car wont start
  97. Possible benefit from a grounding kit?
  98. Annoying Problem
  99. Northstar swap into a Buick Reatta
  100. Which side is the inj. harness on?
  101. 2000 n* into 1996
  102. Tensioner question
  103. 98 DeVille -Torque Trouble
  104. 93 Northstar Allante TPS Issues
  105. Oil light?
  106. 97 STS, low compression in all left bank cyls
  107. Help I027 SES Code came up After a W.O.T
  108. Starter revelation, ....for me anyhow!
  109. Fuel Pump and Erratic idle
  110. Is this a good price for a used N*?
  111. finding an alternative to timeserts
  112. need time sert kit for head gasket repair
  113. Oil filter?!?
  114. 96 DeVille losing coolant
  115. Prevention of Headgasket Trouble?
  116. How much could I get for it all? (N* project)
  117. Anybody have a 300hp northstar and a scan tool?
  118. Severe stumble
  119. last thing holding my cylinder head on... help!
  120. help with some codes
  121. W.o.t.
  122. flickering oil light
  123. Northstar repair
  124. exhaust question
  125. Coolant Problem Eatin My Money!!!!
  126. Tune UP
  127. W. O. T!
  128. Help!!! How do I remove the belt out of a 1999 Seville STS N* engine???
  129. Water Pump Confusion
  130. update - starting
  131. TPS values (PD01 PCM Data output)
  132. 94 SLS Smoked/Smelled and now Won't Start
  133. The Case Of The Dissapearing Oil?
  134. How To Pull Codes (DTC's)
  135. 98 DeVille starting trouble. Help!
  136. Double Flush?
  137. 2000 sls high idle
  138. 1998 Deville Tune-Up confusion
  139. 98 n* head bolts/inserts
  140. 97 Etc Engine Exchange...please Help
  141. 95 ETC Overheating Sometimes??
  142. 97 northstar still overheating
  143. People with stalling problems may want to look at this!!!
  144. NOOB needs some help!!... northstar blown!!!
  145. Loud snapping sound during startup/shutdown
  146. Question on maintanance
  147. Dex-Cool no longer made?
  148. Prestone Super Radiator Flush
  149. Popular choice for spark plugs in my 99 STS???
  150. removing the crank pulley
  151. Post Explosion Roughness
  152. Adjusting Tming (94 concours)
  153. 94 sls whats causing a high idle?!
  154. symtoms of bad wtr pump, 97 concours
  155. EGR valve location
  156. Bottom end/block from another engine?
  157. spark plug wires?
  158. Too Much Spent, Same Problem
  159. 1993 Exploding Intake Plenum
  160. STS Mufflers
  161. Why does dirty TB cause crazy idle?
  162. O2 Sensor
  163. Noisy engine
  164. 100000 mile maintenance
  165. Crank sensors
  166. Pictures of relocated PCM
  167. Reverse (ing) ...
  168. ??Smoking 96DeVille??
  169. head bolt torque settings
  170. Quick Oil Change Question....
  171. 01 STS stalls when stoped at light!
  172. getting the O2 sensor changed
  173. Fram Sure Drain
  174. Engine noise
  175. Piggyback computer is installed
  176. 98 Head Gasket Job
  177. 1993 Northstar
  178. 1998 Northstar For Sell
  179. 2002 DTS Spark Plugs
  180. Time serts pulling out of block
  181. 94 running hot!?????
  182. Tricky
  183. Old Fuel Rail Vs. New Fuel Rail
  184. Oil Leaks
  185. Found used NS, need advice.....
  186. Anyone else's N* tick at idle?
  187. Fuel Pressure Regulator and hot start problems
  188. HiPo Northstars in the house?
  189. Deville 96 Coolant leaking ...
  190. 1993 STS Rough Idle
  191. Oil pan bolt torque
  192. 96 Deville Northstar, No Oil Pressure out of the blue.
  193. So K&N air filter is no good?
  194. 93 Eldorado
  195. 98 deville hard starting
  196. check transmission message
  197. 99 deville/Northstar
  198. Opinions Needed
  199. Coolant supplement tabs not added at coolant change. Now what???
  200. 55.6 mpg
  201. 89in-lb? Seriously?
  202. transmission oil loss
  203. lean fuel mixture
  204. Has anybody bothered to check their Calculated Octane Rating on their OBDI Northstar?
  205. 98 STS airbox mod?
  206. cable acting up, white smoke 94 sls
  207. Trans Fluid Change Question
  208. Can anyone tell me if I have a bad head gasket
  209. Regular vs Premium Gas
  210. Po39
  211. My cheap-ass tune up
  212. head gasket and engine in-vehicle possible?
  213. 95 seville starter help!! plz look
  214. Possible Idling Problem?
  215. lifting out the '94 northstar.. please take a look
  216. My Nitrous project is under way...
  217. trans. leak
  218. c
  219. Coolant leak 98 DeVille and desparate
  220. Coolant leak and desparate
  221. Spark Plugs
  222. How about Eldo Performance Mods?
  223. new radiator, now engine overheats
  224. new radiator, now engine overheats
  225. Parts lookup by GM part #?? is it possible?
  226. Flushing 4T80E....how many quarts of fluid?
  227. changing PCValve on 94 eldorado
  228. Error code P035
  229. pull engine from the top in sections ?
  230. Sharp right turn=Puff of blue smoke!
  231. inside radiator leak/transmission leak?
  232. 93 Eldorado 4.6 Northstar "chuggle"
  233. high trans line pressure
  234. Firing order
  235. Northstar question!
  236. Can we get a moment of silence...
  237. air filter in a 1999 Deville
  238. So far I'm not thrilled
  239. Misfire and coils
  240. OBD2 Code RSM0038???
  241. Missfire - NEED HELP
  242. P036 & P056?
  243. Service Engine Soon? No apparent problems
  244. Replaced plug wires and plugs still misfire code
  245. I want more power out of my Northstar
  246. Is there any update on a head gasket sealer that works?
  247. What happened?
  248. Infinitely better than the 'turbonoter'!
  249. Headgasket change ????
  250. Motor Noise