: Northstar Engines and System Technical Discussion



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  1. oil change
  2. 70MPH pull.....
  3. reuse pistion rings?
  4. Engine Stall
  5. Contents of GM Top End Cleaner?
  6. OBDII Codes
  7. Iridium Spark plugs
  8. Oil Change
  9. Bar's Leaks J-120
  10. MAF Sensor
  11. cracked block pics
  12. possible Northstar PCM Programmer
  13. Export code
  14. Strange hole under ignition module
  15. Balls to the wall - N* style
  16. Timesert kit for sale
  17. Bank 2 identification
  18. Source of whining noise
  19. So many questions, so little time
  20. need help with p036 and p094
  21. Odin8 are you out there ?
  22. will '94 concours fuel injectors fit '96 sts?
  23. 1BadCaddy 94' STS update on power tune up.
  24. 4T80E Troubles?
  25. Coolant leak under throttle body area?
  26. After Shift Sol. Replacement...
  27. Safe amount of boos for stock motor?
  28. Found the reason why my car "jerks" during acceleration
  29. Head torque
  30. Ground Cable Location?
  31. Northstar leaking coolant....big time!
  32. Setting the timing gears and belts on 96 n* 4.6
  33. Help on hesitant start...
  34. New to forum, getting a caddy, some advice needed...
  35. Head gasket = overheat while driving or idling?
  36. Mini N*
  37. Tranny Prob, sheared pump shaft
  38. Twin Turbo N* powered 1948 Tucker
  39. cracked block
  40. Legit "Performance chip"?
  41. Missing Hose On Vacuum Purge Switch?
  42. N* water pump froze in housing
  43. coolant leak 00 sts
  44. 1990 Eldorado won't Start !
  45. started my headgasket job today
  46. is this normal or could this be my problem
  47. Anyone ever see this thing
  48. Sludge in my engine?
  49. WOT's northstar knock?
  50. STS Coolant Burping Air out of Coolant Question
  51. Oil leak
  52. N* rebuild....hmmm what to add to my mod list
  53. Keys to long lasting N*'s
  54. Complete engine overhaul, need help ASAP
  55. Cadillac Eldorado 1995 ER HELP NEEDED!!!
  56. Huge Problem, No Shop Can Fix!!!! Help!!!
  57. 04 STS misfires when idles, goes away when you floor it.
  58. northstar research thread pics 56k beware
  59. Exhaust size
  60. Plugs And Wires
  61. Which kind of FPR?
  62. 93 Seville?
  63. 96-99 motor wiring diagrams
  64. 91 Eldo STILL misses
  65. Torque vs Horsepower primer
  66. Crankshaft Position Sensor Replaced-Code Still Set P0385
  67. Water pump question on 94 STS
  68. Is it possible to lose HP
  69. Performance tune-up for 94 North*using performance coils.
  70. 97 N* Shaky idle
  71. 97 N8 port, polish and valve job
  72. Differance between 94 and 97 N*
  73. Question about the transmission fluid
  74. Northstar Misfire... no error codes
  75. More Horsepower
  76. Volant Review / So I did it without instructions.
  77. Tranny Prob, Please help!!
  78. High oil consumption (1 quart/week!!)
  79. A/C question/help for 94 STS
  80. Magnets Increase Mileage/Power??
  81. TC0047 Code
  82. Need some help installing Volant
  83. Add Engine Oil alert
  84. P1860... Problem
  85. loss of fuel pressure
  86. O2 sensor change, mpg improvement?
  87. Northstar heads(all) and ECU Chip(93-95). Real power!
  88. 97 deville-changing plugs and wires
  89. NS300L Insert kit
  90. Head gasket set
  91. Coolant Change?
  92. P0441... P0404... ?
  93. P0533... fuel gauge is going nuts
  94. Trans Solenoids??
  95. Timesert VS NS300L Insert System
  96. How much runout is okay?
  97. 95 concours stalling
  98. Looking for Timesert Kit
  99. '94 SLS oil pan / oil manifold / half case leaks
  100. Metal pipe coolant leak...'custom' fix???
  101. Engine apart, which direction does it crank?
  102. 94 Northstar with broken valve.
  103. Oil pressure emergency
  104. hesitation
  105. Timeserts
  106. '99 or '00 ETC?
  107. Fuel pump locking ring
  108. What else do I need to know after unhooking PCM
  109. coolant change
  110. Volant Install
  111. Rebuilt Northstars
  112. Found Rotella 10W-30 at O'Reilly auto parts
  113. PSA: Need sensors?
  114. 1999 Deville front suspension rattle
  115. 1996 Deville 4.6L Water Pump Replacement
  116. N* drive train weight
  117. felpro headgaskets
  118. N* 4.0 liter removal
  119. Smoke at startup?
  120. Whining Power Steering Pump
  121. Questions about servicing my 99 Deville
  122. Where 2 buy main and rod berings for 2004 N*
  123. Lady In Distress - '01 Northstar Intermittent Stalling & Not Starting - Clues Please?
  124. Anyone have HG pics? Not overheating but probs...
  125. Nitrous A/F findings & questions.
  126. 2 N* Questions - Coolent and Tranny Dipstick?
  127. 96 STS Head Gasket Story...
  128. cool Northstar info.
  129. Engine removal
  130. 96 Deville 4.6 North* overheating problem
  131. Hot Hot Hot Is Gone - Finally
  132. A couple Nasty Problems! HELP!
  133. How to change fuel injectors?
  134. Tips for replacing Crankshaft Position Sensors
  135. Oil pan gasket leak!
  136. Oil leak?
  137. left blinker not working when headlights on
  138. Lag in the transmission
  139. p1441 evap code help
  140. P043 -- headache -- what is happening???
  141. New here
  142. Differences in 275 & 300 HP Nstar
  143. Electric Turbo
  144. PCM swap???
  145. Northstar Blocks Cracking ?
  146. what is wrong w/ my n*
  147. Oxygen Sensors Grounding
  148. 94 Seville-Turn signals not working, smoking?
  149. trouble starting after timesert job - HELP!
  150. How do you Northstar owners like your Northstars? Would you recommend them?
  151. Northstar performance Upgrades!!!
  152. Northstar Engine Block STEEL CYL INSERTS
  153. a lil help please
  154. How do I tell if my headgasket was repaired?
  155. keep losing coolant...hard to trace
  156. '94 STS is overheating
  157. '94 SLS Idling to fast
  158. 01 Eldo - 100shot Nitrous - track results
  159. RSM Racing / No more?
  160. 2000 STS Error Codes
  161. quick engine question
  162. A few questions about the 4.0 Northstar
  163. So what would happen...
  164. engine oil leaking
  165. Oil change today after 12,735 since last oil change
  166. Help with Check engine light and pcm codes!!
  167. Is this realistic ?
  168. which car to buy
  169. fuel injector fell out!?!?
  170. exhaust sizes and upgrades?
  171. exhuast sizes an performance
  172. 1996 Deville with a small head gasket leak.
  173. Water Pump pulley
  174. Anyone have a timesert bit they could measure for me?
  175. No Spark On Hot Restart
  176. Northstar parts
  177. question on swaping out 96 northstar
  178. Engine additives...safe for N*?
  179. Transmission Problem
  180. Finally Been Done Cadillac Obd-2 N* Pcm Programmer!!!
  181. Need help one more time!!!!!
  182. hot start when cold
  183. Headgaskets - deterioration or pulled head studs?
  184. Oil Coverd Spark Plugs on Northstar
  185. 1995 new starter $1000 plus?...
  186. AC Compressor
  187. How to calculate HP to weight ratio?
  188. 300 hp northstar in a deville
  189. Belt problem
  190. motor oil?
  191. 94 DeVille..I cant get my drive belt back on. Help!!
  192. not rough idle, just abnormal, help?!
  193. help identifying parts and removing wire harness
  194. Starter Grind on 94 STS
  195. P132 (E132) ......................................... Knock Sensor Circuitry Failure
  196. Oil Pan Removal??? What am I missing
  197. N* water pump?
  198. What Year NSs Fit a '99 Deville? Need Help
  199. Well...how about ram air?
  200. Congratulations to Ranger...10000 posts
  201. Does The Tornado Really work? And Cold air intake!!!
  202. Was H. Gasket Prob Fixed in Later NStars?
  203. 2000 NS Oil Leak
  204. 94 ETC intermittent/low RPM miss
  205. Catalytic Converter Question -
  206. runaway eng Speed -Glowing exhaust -4.6L N*
  207. GM replacement surge tank cap
  208. Help installing camshafts
  209. Sound like the injectors?
  210. 94 eldo tc engine knocking (i think)
  211. Engine Roaring and Popping from dead stop
  212. 03 STS rough IDLE P0300 & U1016 Code
  213. So I went on the highway in 2nd gear...
  214. Water pump belt?
  215. Low/No Oil Pressure
  216. Leaking oil, Not leaking oil
  217. Where Is The Ecu/pcm Located.
  218. Cylinder pressure test for blown head gasket??
  219. coolant pipes - replace or repair?
  220. few head gasket procedure questions
  221. MAP Sensor Problems. Need A Little Guidance.
  222. So Mixing Different Weight Oils is OK?
  223. Fan fuse
  224. Northstar Engine Swap. Has any1 Done it?
  225. Has anyone experience there car cutting off when the fuel is low but will restart?
  226. 99 STS Turbo Update
  227. Northstar cooling system question
  228. Hot Hot Hot !!!!
  229. How exactly do Oil Life Monitors work?
  230. crankshalf sensors
  231. S060 and P039
  232. DENSO or AC Delco Spark Plugs for a Northstar?
  233. normal running temp for a northstar?
  234. Water Pump replacement on a 96 deville
  235. Gonna Have to LIve with the Lifter Tick
  236. Codes
  237. 98 sts overheating problems
  238. corsa exhaust sound clip
  239. My northstar went south
  240. Crankshaft Position Sensor dead again??!?! Symptoms?
  241. 93-95 performance parts!
  242. 2003 FWD Deville engine dying
  243. Damaged boot between intake & tb... need advice
  244. red line
  245. new o2 sensor still p030 when idle
  246. turn signal problem ('94 STS)
  247. warped heads common?
  248. radiator or head gasket????????
  249. thermostat options
  250. Bad ( burning? ) Smell