: Northstar Engines and System Technical Discussion



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  1. Newbie here and tryin to find my CKP
  2. Temperature Concerns
  3. Northstar- Starting, Running Problems
  4. 94 Seville intermittent hard start
  5. Engine miss
  6. sticker shock
  7. 9 codes today, i reckon a bad earth?
  8. oil change
  9. 70MPH pull.....
  10. reuse pistion rings?
  11. Engine Stall
  12. Contents of GM Top End Cleaner?
  13. OBDII Codes
  14. Iridium Spark plugs
  15. Oil Change
  16. Bar's Leaks J-120
  17. MAF Sensor
  18. cracked block pics
  19. possible Northstar PCM Programmer
  20. Export code
  21. Strange hole under ignition module
  22. Balls to the wall - N* style
  23. Timesert kit for sale
  24. Bank 2 identification
  25. Source of whining noise
  26. So many questions, so little time
  27. need help with p036 and p094
  28. Odin8 are you out there ?
  29. will '94 concours fuel injectors fit '96 sts?
  30. 1BadCaddy 94' STS update on power tune up.
  31. 4T80E Troubles?
  32. Coolant leak under throttle body area?
  33. After Shift Sol. Replacement...
  34. Safe amount of boos for stock motor?
  35. Found the reason why my car "jerks" during acceleration
  36. Head torque
  37. Ground Cable Location?
  38. Northstar leaking coolant....big time!
  39. Setting the timing gears and belts on 96 n* 4.6
  40. Help on hesitant start...
  41. New to forum, getting a caddy, some advice needed...
  42. Head gasket = overheat while driving or idling?
  43. Mini N*
  44. Tranny Prob, sheared pump shaft
  45. Twin Turbo N* powered 1948 Tucker
  46. cracked block
  47. Legit "Performance chip"?
  48. Missing Hose On Vacuum Purge Switch?
  49. N* water pump froze in housing
  50. coolant leak 00 sts
  51. 1990 Eldorado won't Start !
  52. started my headgasket job today
  53. is this normal or could this be my problem
  54. Anyone ever see this thing
  55. Sludge in my engine?
  56. WOT's northstar knock?
  57. STS Coolant Burping Air out of Coolant Question
  58. Oil leak
  59. N* rebuild....hmmm what to add to my mod list
  60. Keys to long lasting N*'s
  61. Complete engine overhaul, need help ASAP
  62. Cadillac Eldorado 1995 ER HELP NEEDED!!!
  63. Huge Problem, No Shop Can Fix!!!! Help!!!
  64. 04 STS misfires when idles, goes away when you floor it.
  65. northstar research thread pics 56k beware
  66. Exhaust size
  67. Plugs And Wires
  68. Which kind of FPR?
  69. 93 Seville?
  70. 96-99 motor wiring diagrams
  71. 91 Eldo STILL misses
  72. Torque vs Horsepower primer
  73. Crankshaft Position Sensor Replaced-Code Still Set P0385
  74. Water pump question on 94 STS
  75. Is it possible to lose HP
  76. Performance tune-up for 94 North*using performance coils.
  77. 97 N* Shaky idle
  78. 97 N8 port, polish and valve job
  79. Differance between 94 and 97 N*
  80. Question about the transmission fluid
  81. Northstar Misfire... no error codes
  82. More Horsepower
  83. Volant Review / So I did it without instructions.
  84. Tranny Prob, Please help!!
  85. High oil consumption (1 quart/week!!)
  86. A/C question/help for 94 STS
  87. Magnets Increase Mileage/Power??
  88. TC0047 Code
  89. Need some help installing Volant
  90. Add Engine Oil alert
  91. P1860... Problem
  92. loss of fuel pressure
  93. O2 sensor change, mpg improvement?
  94. Northstar heads(all) and ECU Chip(93-95). Real power!
  95. 97 deville-changing plugs and wires
  96. NS300L Insert kit
  97. Head gasket set
  98. Coolant Change?
  99. P0441... P0404... ?
  100. P0533... fuel gauge is going nuts
  101. Trans Solenoids??
  102. Timesert VS NS300L Insert System
  103. How much runout is okay?
  104. 95 concours stalling
  105. Looking for Timesert Kit
  106. '94 SLS oil pan / oil manifold / half case leaks
  107. Metal pipe coolant leak...'custom' fix???
  108. Engine apart, which direction does it crank?
  109. 94 Northstar with broken valve.
  110. Oil pressure emergency
  111. hesitation
  112. Timeserts
  113. '99 or '00 ETC?
  114. Fuel pump locking ring
  115. What else do I need to know after unhooking PCM
  116. coolant change
  117. Volant Install
  118. Rebuilt Northstars
  119. Found Rotella 10W-30 at O'Reilly auto parts
  120. PSA: Need sensors?
  121. 1999 Deville front suspension rattle
  122. 1996 Deville 4.6L Water Pump Replacement
  123. N* drive train weight
  124. felpro headgaskets
  125. N* 4.0 liter removal
  126. Smoke at startup?
  127. Whining Power Steering Pump
  128. Questions about servicing my 99 Deville
  129. Where 2 buy main and rod berings for 2004 N*
  130. Lady In Distress - '01 Northstar Intermittent Stalling & Not Starting - Clues Please?
  131. Anyone have HG pics? Not overheating but probs...
  132. Nitrous A/F findings & questions.
  133. 2 N* Questions - Coolent and Tranny Dipstick?
  134. 96 STS Head Gasket Story...
  135. cool Northstar info.
  136. Engine removal
  137. 96 Deville 4.6 North* overheating problem
  138. Hot Hot Hot Is Gone - Finally
  139. A couple Nasty Problems! HELP!
  140. How to change fuel injectors?
  141. Tips for replacing Crankshaft Position Sensors
  142. Oil pan gasket leak!
  143. Oil leak?
  144. left blinker not working when headlights on
  145. Lag in the transmission
  146. p1441 evap code help
  147. P043 -- headache -- what is happening???
  148. New here
  149. Differences in 275 & 300 HP Nstar
  150. Electric Turbo
  151. PCM swap???
  152. Northstar Blocks Cracking ?
  153. what is wrong w/ my n*
  154. Oxygen Sensors Grounding
  155. 94 Seville-Turn signals not working, smoking?
  156. trouble starting after timesert job - HELP!
  157. How do you Northstar owners like your Northstars? Would you recommend them?
  158. Northstar performance Upgrades!!!
  159. Northstar Engine Block STEEL CYL INSERTS
  160. a lil help please
  161. How do I tell if my headgasket was repaired?
  162. keep losing coolant...hard to trace
  163. '94 STS is overheating
  164. '94 SLS Idling to fast
  165. 01 Eldo - 100shot Nitrous - track results
  166. RSM Racing / No more?
  167. 2000 STS Error Codes
  168. quick engine question
  169. A few questions about the 4.0 Northstar
  170. So what would happen...
  171. engine oil leaking
  172. Oil change today after 12,735 since last oil change
  173. Help with Check engine light and pcm codes!!
  174. Is this realistic ?
  175. which car to buy
  176. fuel injector fell out!?!?
  177. exhaust sizes and upgrades?
  178. exhuast sizes an performance
  179. 1996 Deville with a small head gasket leak.
  180. Water Pump pulley
  181. Anyone have a timesert bit they could measure for me?
  182. No Spark On Hot Restart
  183. Northstar parts
  184. question on swaping out 96 northstar
  185. Engine additives...safe for N*?
  186. Transmission Problem
  187. Finally Been Done Cadillac Obd-2 N* Pcm Programmer!!!
  188. Need help one more time!!!!!
  189. hot start when cold
  190. Headgaskets - deterioration or pulled head studs?
  191. Oil Coverd Spark Plugs on Northstar
  192. 1995 new starter $1000 plus?...
  193. AC Compressor
  194. How to calculate HP to weight ratio?
  195. 300 hp northstar in a deville
  196. Belt problem
  197. motor oil?
  198. 94 DeVille..I cant get my drive belt back on. Help!!
  199. not rough idle, just abnormal, help?!
  200. help identifying parts and removing wire harness
  201. Starter Grind on 94 STS
  202. P132 (E132) ......................................... Knock Sensor Circuitry Failure
  203. Oil Pan Removal??? What am I missing
  204. N* water pump?
  205. What Year NSs Fit a '99 Deville? Need Help
  206. Well...how about ram air?
  207. Congratulations to Ranger...10000 posts
  208. Does The Tornado Really work? And Cold air intake!!!
  209. Was H. Gasket Prob Fixed in Later NStars?
  210. 2000 NS Oil Leak
  211. 94 ETC intermittent/low RPM miss
  212. Catalytic Converter Question -
  213. runaway eng Speed -Glowing exhaust -4.6L N*
  214. GM replacement surge tank cap
  215. Help installing camshafts
  216. Sound like the injectors?
  217. 94 eldo tc engine knocking (i think)
  218. Engine Roaring and Popping from dead stop
  219. 03 STS rough IDLE P0300 & U1016 Code
  220. So I went on the highway in 2nd gear...
  221. Water pump belt?
  222. Low/No Oil Pressure
  223. Leaking oil, Not leaking oil
  224. Where Is The Ecu/pcm Located.
  225. Cylinder pressure test for blown head gasket??
  226. coolant pipes - replace or repair?
  227. few head gasket procedure questions
  228. MAP Sensor Problems. Need A Little Guidance.
  229. So Mixing Different Weight Oils is OK?
  230. Fan fuse
  231. Northstar Engine Swap. Has any1 Done it?
  232. Has anyone experience there car cutting off when the fuel is low but will restart?
  233. 99 STS Turbo Update
  234. Northstar cooling system question
  235. Hot Hot Hot !!!!
  236. How exactly do Oil Life Monitors work?
  237. crankshalf sensors
  238. S060 and P039
  239. DENSO or AC Delco Spark Plugs for a Northstar?
  240. normal running temp for a northstar?
  241. Water Pump replacement on a 96 deville
  242. Gonna Have to LIve with the Lifter Tick
  243. Codes
  244. 98 sts overheating problems
  245. corsa exhaust sound clip
  246. My northstar went south
  247. Crankshaft Position Sensor dead again??!?! Symptoms?
  248. 93-95 performance parts!
  249. 2003 FWD Deville engine dying
  250. Damaged boot between intake & tb... need advice