: Northstar Engines and System Technical Discussion



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