: Northstar Engines and System Technical Discussion



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  1. Head gasket leak after
  2. Corrupt Miles.
  3. Anyone dyno their Caddy?
  4. Rough Running 97 DeVille
  5. Northster Squeel/Whistle
  6. Sweet exhaust smell?
  7. supercharging a 4.6L Northstar
  8. engine died in acceleration! wont start.
  9. T/C cut out assembly
  10. N* feels shuddery
  11. Well, changed the oil....
  12. Starter failure???
  13. GM Remanufactured Transmission...has
  14. Heater core intake line
  15. Stays in open loop (?)
  16. P039 Torque Converter Clutch/Viscous Converter Clutch Engagement Problem
  17. Top End Setting?
  18. Code- P0442
  19. Tune-UP this weekend; questions..
  20. Is this possible ?
  21. P0151 02 Sensor Circuit Low Voltage (Bank 2 Sensor I
  22. This whole WOT thing....
  23. Fuel Pressure for a 95 STS?
  24. Should I Worry About WOT?
  25. Oil level sensor question?
  26. '97 NorthStar Coolant Temp
  27. 13mpg!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  28. P0139 - Heated Oxygen Sensor (HO2S) Slow Response Bank 1 Sensor 2
  29. throttle body cleaning
  30. Recommended fuel pressure + stalling
  31. 2000 ETC MPG Blew My Mind
  32. Installation/Removal of Temperature Sensor
  33. 93 sts
  34. Dropping Drive Train Axles Too?
  35. with the engine now out, what should I replace?
  36. Volant Intake For 2001-2004 4.6L Deville
  37. groan/rattling noise
  38. 1998 surging when accelerating
  39. Keeping a '97 NS running well
  40. 94 STS Help! Cooling Fans Inop
  41. prolonged cranking 1996 eldo
  42. stan_tampabay
  43. Long crank startups
  44. 2000 deville code hlep
  45. bad coolant temp sensor?
  46. www.steelseal.com
  47. 1994 Eldorado sometimes misfiring. Water in the Fuel?
  48. Ranger....Coolant Question
  49. Northstar Coolant Questions
  50. Replaced the MAP sensor
  51. Code problem, please help!!!
  52. Peformance of 2005 Cadillac Deville w/ Northstar
  53. HELP...car wont start
  54. Possible benefit from a grounding kit?
  55. Annoying Problem
  56. Northstar swap into a Buick Reatta
  57. Which side is the inj. harness on?
  58. 2000 n* into 1996
  59. Tensioner question
  60. 98 DeVille -Torque Trouble
  61. 93 Northstar Allante TPS Issues
  62. Oil light?
  63. 97 STS, low compression in all left bank cyls
  64. Help I027 SES Code came up After a W.O.T
  65. Starter revelation, ....for me anyhow!
  66. Fuel Pump and Erratic idle
  67. Is this a good price for a used N*?
  68. finding an alternative to timeserts
  69. need time sert kit for head gasket repair
  70. Oil filter?!?
  71. 96 DeVille losing coolant
  72. Prevention of Headgasket Trouble?
  73. How much could I get for it all? (N* project)
  74. Anybody have a 300hp northstar and a scan tool?
  75. Severe stumble
  76. last thing holding my cylinder head on... help!
  77. help with some codes
  78. W.o.t.
  79. flickering oil light
  80. Northstar repair
  81. exhaust question
  82. Coolant Problem Eatin My Money!!!!
  83. Tune UP
  84. W. O. T!
  85. Help!!! How do I remove the belt out of a 1999 Seville STS N* engine???
  86. Water Pump Confusion
  87. update - starting
  88. TPS values (PD01 PCM Data output)
  89. 94 SLS Smoked/Smelled and now Won't Start
  90. The Case Of The Dissapearing Oil?
  91. How To Pull Codes (DTC's)
  92. 98 DeVille starting trouble. Help!
  93. Double Flush?
  94. 2000 sls high idle
  95. 1998 Deville Tune-Up confusion
  96. 98 n* head bolts/inserts
  97. 97 Etc Engine Exchange...please Help
  98. 95 ETC Overheating Sometimes??
  99. 97 northstar still overheating
  100. People with stalling problems may want to look at this!!!
  101. NOOB needs some help!!... northstar blown!!!
  102. Loud snapping sound during startup/shutdown
  103. Question on maintanance
  104. Dex-Cool no longer made?
  105. Prestone Super Radiator Flush
  106. Popular choice for spark plugs in my 99 STS???
  107. removing the crank pulley
  108. Post Explosion Roughness
  109. Adjusting Tming (94 concours)
  110. 94 sls whats causing a high idle?!
  111. symtoms of bad wtr pump, 97 concours
  112. EGR valve location
  113. Bottom end/block from another engine?
  114. spark plug wires?
  115. Too Much Spent, Same Problem
  116. 1993 Exploding Intake Plenum
  117. STS Mufflers
  118. Why does dirty TB cause crazy idle?
  119. O2 Sensor
  120. Noisy engine
  121. 100000 mile maintenance
  122. Crank sensors
  123. Pictures of relocated PCM
  124. Reverse (ing) ...
  125. ??Smoking 96DeVille??
  126. head bolt torque settings
  127. Quick Oil Change Question....
  128. 01 STS stalls when stoped at light!
  129. getting the O2 sensor changed
  130. Fram Sure Drain
  131. Engine noise
  132. Piggyback computer is installed
  133. 98 Head Gasket Job
  134. 1993 Northstar
  135. 1998 Northstar For Sell
  136. 2002 DTS Spark Plugs
  137. Time serts pulling out of block
  138. 94 running hot!?????
  139. Tricky
  140. Old Fuel Rail Vs. New Fuel Rail
  141. Oil Leaks
  142. Found used NS, need advice.....
  143. Anyone else's N* tick at idle?
  144. Fuel Pressure Regulator and hot start problems
  145. HiPo Northstars in the house?
  146. Deville 96 Coolant leaking ...
  147. 1993 STS Rough Idle
  148. Oil pan bolt torque
  149. 96 Deville Northstar, No Oil Pressure out of the blue.
  150. So K&N air filter is no good?
  151. 93 Eldorado
  152. 98 deville hard starting
  153. check transmission message
  154. 99 deville/Northstar
  155. Opinions Needed
  156. Coolant supplement tabs not added at coolant change. Now what???
  157. 55.6 mpg
  158. 89in-lb? Seriously?
  159. transmission oil loss
  160. lean fuel mixture
  161. Has anybody bothered to check their Calculated Octane Rating on their OBDI Northstar?
  162. 98 STS airbox mod?
  163. cable acting up, white smoke 94 sls
  164. Trans Fluid Change Question
  165. Can anyone tell me if I have a bad head gasket
  166. Regular vs Premium Gas
  167. Po39
  168. My cheap-ass tune up
  169. head gasket and engine in-vehicle possible?
  170. 95 seville starter help!! plz look
  171. Possible Idling Problem?
  172. lifting out the '94 northstar.. please take a look
  173. My Nitrous project is under way...
  174. trans. leak
  175. c
  176. Coolant leak 98 DeVille and desparate
  177. Coolant leak and desparate
  178. Spark Plugs
  179. How about Eldo Performance Mods?
  180. new radiator, now engine overheats
  181. new radiator, now engine overheats
  182. Parts lookup by GM part #?? is it possible?
  183. Flushing 4T80E....how many quarts of fluid?
  184. changing PCValve on 94 eldorado
  185. Error code P035
  186. pull engine from the top in sections ?
  187. Sharp right turn=Puff of blue smoke!
  188. inside radiator leak/transmission leak?
  189. 93 Eldorado 4.6 Northstar "chuggle"
  190. high trans line pressure
  191. Firing order
  192. Northstar question!
  193. Can we get a moment of silence...
  194. air filter in a 1999 Deville
  195. So far I'm not thrilled
  196. Misfire and coils
  197. OBD2 Code RSM0038???
  198. Missfire - NEED HELP
  199. P036 & P056?
  200. Service Engine Soon? No apparent problems
  201. Replaced plug wires and plugs still misfire code
  202. I want more power out of my Northstar
  203. Is there any update on a head gasket sealer that works?
  204. What happened?
  205. Infinitely better than the 'turbonoter'!
  206. Headgasket change ????
  207. Motor Noise
  208. best oil for the 96 northstar 133000 miles
  209. northstar oil leak issues
  210. Where can I cash in a blown PCM core?
  211. hole in the block!!!!!!!!!!
  212. Intake Manifold removal
  213. 96 Edlo Cranks will not start
  214. Lower temp stat & fan sensor?
  215. 93 Allante Northstar oil leak
  216. Guide to replace water pump...
  217. Surge tank
  218. Dex Cool
  219. My crank pulley is wobbling...
  220. Throttle Body Question...
  221. oil pressure light
  222. General Northstar info needed
  223. overheating
  224. bad smell and smoke
  225. How do i clean the heads on my aluminum block?
  226. Dex-cool controversy
  227. what year engine is this!
  228. gasket
  229. NEW (used) Cadillac Owner Deville Northstar 32V
  230. Overheating '99 D'Elegance, need to sell....
  231. headgasket blown?
  232. 1996 cadillac deville for sale
  233. Shift solonoid ?, not like in thread below
  234. 97 eldorado etc with a stumble
  235. do I need two sets of timeserts?
  236. Trouble starting once engine is warm
  237. coolant level
  238. Ok computer genius!! I need you help please
  239. removing northstar engine AC COMPRESSOR question
  240. Intermittant detonation
  241. n*Headgasket Diag. the Hardway
  242. Using 1st, 2nd, 3rd gears in 99' STS
  243. Northstar 1993 Explosion - Urgent Need
  244. having a starting problem on my 94 sls
  245. '95 Northstar into a '94?
  246. NorthStar reliability?
  247. Leaking Coolant, where is it coming from?
  248. Removing the front valve cover on 98 N*???
  249. Low battery voltage causing hard starts ?
  250. new server with past informative posts