: Northstar Engines and System Technical Discussion



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  1. Annoying Tranny Whine
  2. Car just dies. Please help!
  3. service engine soon light
  4. 1993 STS running rough P053 Code
  5. 2000 Eldorado ETC Misfire #2
  6. Revisiting Airflow = Torque
  7. missed a time sert kit
  8. Newbie here and tryin to find my CKP
  9. Temperature Concerns
  10. Northstar- Starting, Running Problems
  11. 94 Seville intermittent hard start
  12. Engine miss
  13. sticker shock
  14. 9 codes today, i reckon a bad earth?
  15. oil change
  16. 70MPH pull.....
  17. reuse pistion rings?
  18. Engine Stall
  19. Contents of GM Top End Cleaner?
  20. OBDII Codes
  21. Iridium Spark plugs
  22. Oil Change
  23. Bar's Leaks J-120
  24. MAF Sensor
  25. cracked block pics
  26. possible Northstar PCM Programmer
  27. Export code
  28. Strange hole under ignition module
  29. Balls to the wall - N* style
  30. Timesert kit for sale
  31. Bank 2 identification
  32. Source of whining noise
  33. So many questions, so little time
  34. need help with p036 and p094
  35. Odin8 are you out there ?
  36. will '94 concours fuel injectors fit '96 sts?
  37. 1BadCaddy 94' STS update on power tune up.
  38. 4T80E Troubles?
  39. Coolant leak under throttle body area?
  40. After Shift Sol. Replacement...
  41. Safe amount of boos for stock motor?
  42. Found the reason why my car "jerks" during acceleration
  43. Head torque
  44. Ground Cable Location?
  45. Northstar leaking coolant....big time!
  46. Setting the timing gears and belts on 96 n* 4.6
  47. Help on hesitant start...
  48. New to forum, getting a caddy, some advice needed...
  49. Head gasket = overheat while driving or idling?
  50. Mini N*
  51. Tranny Prob, sheared pump shaft
  52. Twin Turbo N* powered 1948 Tucker
  53. cracked block
  54. Legit "Performance chip"?
  55. Missing Hose On Vacuum Purge Switch?
  56. N* water pump froze in housing
  57. coolant leak 00 sts
  58. 1990 Eldorado won't Start !
  59. started my headgasket job today
  60. is this normal or could this be my problem
  61. Anyone ever see this thing
  62. Sludge in my engine?
  63. WOT's northstar knock?
  64. STS Coolant Burping Air out of Coolant Question
  65. Oil leak
  66. N* rebuild....hmmm what to add to my mod list
  67. Keys to long lasting N*'s
  68. Complete engine overhaul, need help ASAP
  69. Cadillac Eldorado 1995 ER HELP NEEDED!!!
  70. Huge Problem, No Shop Can Fix!!!! Help!!!
  71. 04 STS misfires when idles, goes away when you floor it.
  72. northstar research thread pics 56k beware
  73. Exhaust size
  74. Plugs And Wires
  75. Which kind of FPR?
  76. 93 Seville?
  77. 96-99 motor wiring diagrams
  78. 91 Eldo STILL misses
  79. Torque vs Horsepower primer
  80. Crankshaft Position Sensor Replaced-Code Still Set P0385
  81. Water pump question on 94 STS
  82. Is it possible to lose HP
  83. Performance tune-up for 94 North*using performance coils.
  84. 97 N* Shaky idle
  85. 97 N8 port, polish and valve job
  86. Differance between 94 and 97 N*
  87. Question about the transmission fluid
  88. Northstar Misfire... no error codes
  89. More Horsepower
  90. Volant Review / So I did it without instructions.
  91. Tranny Prob, Please help!!
  92. High oil consumption (1 quart/week!!)
  93. A/C question/help for 94 STS
  94. Magnets Increase Mileage/Power??
  95. TC0047 Code
  96. Need some help installing Volant
  97. Add Engine Oil alert
  98. P1860... Problem
  99. loss of fuel pressure
  100. O2 sensor change, mpg improvement?
  101. Northstar heads(all) and ECU Chip(93-95). Real power!
  102. 97 deville-changing plugs and wires
  103. NS300L Insert kit
  104. Head gasket set
  105. Coolant Change?
  106. P0441... P0404... ?
  107. P0533... fuel gauge is going nuts
  108. Trans Solenoids??
  109. Timesert VS NS300L Insert System
  110. How much runout is okay?
  111. 95 concours stalling
  112. Looking for Timesert Kit
  113. '94 SLS oil pan / oil manifold / half case leaks
  114. Metal pipe coolant leak...'custom' fix???
  115. Engine apart, which direction does it crank?
  116. 94 Northstar with broken valve.
  117. Oil pressure emergency
  118. hesitation
  119. Timeserts
  120. '99 or '00 ETC?
  121. Fuel pump locking ring
  122. What else do I need to know after unhooking PCM
  123. coolant change
  124. Volant Install
  125. Rebuilt Northstars
  126. Found Rotella 10W-30 at O'Reilly auto parts
  127. PSA: Need sensors?
  128. 1999 Deville front suspension rattle
  129. 1996 Deville 4.6L Water Pump Replacement
  130. N* drive train weight
  131. felpro headgaskets
  132. N* 4.0 liter removal
  133. Smoke at startup?
  134. Whining Power Steering Pump
  135. Questions about servicing my 99 Deville
  136. Where 2 buy main and rod berings for 2004 N*
  137. Lady In Distress - '01 Northstar Intermittent Stalling & Not Starting - Clues Please?
  138. Anyone have HG pics? Not overheating but probs...
  139. Nitrous A/F findings & questions.
  140. 2 N* Questions - Coolent and Tranny Dipstick?
  141. 96 STS Head Gasket Story...
  142. cool Northstar info.
  143. Engine removal
  144. 96 Deville 4.6 North* overheating problem
  145. Hot Hot Hot Is Gone - Finally
  146. A couple Nasty Problems! HELP!
  147. How to change fuel injectors?
  148. Tips for replacing Crankshaft Position Sensors
  149. Oil pan gasket leak!
  150. Oil leak?
  151. left blinker not working when headlights on
  152. Lag in the transmission
  153. p1441 evap code help
  154. P043 -- headache -- what is happening???
  155. New here
  156. Differences in 275 & 300 HP Nstar
  157. Electric Turbo
  158. PCM swap???
  159. Northstar Blocks Cracking ?
  160. what is wrong w/ my n*
  161. Oxygen Sensors Grounding
  162. 94 Seville-Turn signals not working, smoking?
  163. trouble starting after timesert job - HELP!
  164. How do you Northstar owners like your Northstars? Would you recommend them?
  165. Northstar performance Upgrades!!!
  166. Northstar Engine Block STEEL CYL INSERTS
  167. a lil help please
  168. How do I tell if my headgasket was repaired?
  169. keep losing coolant...hard to trace
  170. '94 STS is overheating
  171. '94 SLS Idling to fast
  172. 01 Eldo - 100shot Nitrous - track results
  173. RSM Racing / No more?
  174. 2000 STS Error Codes
  175. quick engine question
  176. A few questions about the 4.0 Northstar
  177. So what would happen...
  178. engine oil leaking
  179. Oil change today after 12,735 since last oil change
  180. Help with Check engine light and pcm codes!!
  181. Is this realistic ?
  182. which car to buy
  183. fuel injector fell out!?!?
  184. exhaust sizes and upgrades?
  185. exhuast sizes an performance
  186. 1996 Deville with a small head gasket leak.
  187. Water Pump pulley
  188. Anyone have a timesert bit they could measure for me?
  189. No Spark On Hot Restart
  190. Northstar parts
  191. question on swaping out 96 northstar
  192. Engine additives...safe for N*?
  193. Transmission Problem
  194. Finally Been Done Cadillac Obd-2 N* Pcm Programmer!!!
  195. Need help one more time!!!!!
  196. hot start when cold
  197. Headgaskets - deterioration or pulled head studs?
  198. Oil Coverd Spark Plugs on Northstar
  199. 1995 new starter $1000 plus?...
  200. AC Compressor
  201. How to calculate HP to weight ratio?
  202. 300 hp northstar in a deville
  203. Belt problem
  204. motor oil?
  205. 94 DeVille..I cant get my drive belt back on. Help!!
  206. not rough idle, just abnormal, help?!
  207. help identifying parts and removing wire harness
  208. Starter Grind on 94 STS
  209. P132 (E132) ......................................... Knock Sensor Circuitry Failure
  210. Oil Pan Removal??? What am I missing
  211. N* water pump?
  212. What Year NSs Fit a '99 Deville? Need Help
  213. Well...how about ram air?
  214. Congratulations to Ranger...10000 posts
  215. Does The Tornado Really work? And Cold air intake!!!
  216. Was H. Gasket Prob Fixed in Later NStars?
  217. 2000 NS Oil Leak
  218. 94 ETC intermittent/low RPM miss
  219. Catalytic Converter Question -
  220. runaway eng Speed -Glowing exhaust -4.6L N*
  221. GM replacement surge tank cap
  222. Help installing camshafts
  223. Sound like the injectors?
  224. 94 eldo tc engine knocking (i think)
  225. Engine Roaring and Popping from dead stop
  226. 03 STS rough IDLE P0300 & U1016 Code
  227. So I went on the highway in 2nd gear...
  228. Water pump belt?
  229. Low/No Oil Pressure
  230. Leaking oil, Not leaking oil
  231. Where Is The Ecu/pcm Located.
  232. Cylinder pressure test for blown head gasket??
  233. coolant pipes - replace or repair?
  234. few head gasket procedure questions
  235. MAP Sensor Problems. Need A Little Guidance.
  236. So Mixing Different Weight Oils is OK?
  237. Fan fuse
  238. Northstar Engine Swap. Has any1 Done it?
  239. Has anyone experience there car cutting off when the fuel is low but will restart?
  240. 99 STS Turbo Update
  241. Northstar cooling system question
  242. Hot Hot Hot !!!!
  243. How exactly do Oil Life Monitors work?
  244. crankshalf sensors
  245. S060 and P039
  246. DENSO or AC Delco Spark Plugs for a Northstar?
  247. normal running temp for a northstar?
  248. Water Pump replacement on a 96 deville
  249. Gonna Have to LIve with the Lifter Tick
  250. Codes