: Northstar Engines and System Technical Discussion



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  1. Torque vs Horsepower primer
  2. Crankshaft Position Sensor Replaced-Code Still Set P0385
  3. Water pump question on 94 STS
  4. Is it possible to lose HP
  5. Performance tune-up for 94 North*using performance coils.
  6. 97 N* Shaky idle
  7. 97 N8 port, polish and valve job
  8. Differance between 94 and 97 N*
  9. Question about the transmission fluid
  10. Northstar Misfire... no error codes
  11. More Horsepower
  12. Volant Review / So I did it without instructions.
  13. Tranny Prob, Please help!!
  14. High oil consumption (1 quart/week!!)
  15. A/C question/help for 94 STS
  16. Magnets Increase Mileage/Power??
  17. TC0047 Code
  18. Need some help installing Volant
  19. Add Engine Oil alert
  20. P1860... Problem
  21. loss of fuel pressure
  22. O2 sensor change, mpg improvement?
  23. Northstar heads(all) and ECU Chip(93-95). Real power!
  24. 97 deville-changing plugs and wires
  25. NS300L Insert kit
  26. Head gasket set
  27. Coolant Change?
  28. P0441... P0404... ?
  29. P0533... fuel gauge is going nuts
  30. Trans Solenoids??
  31. Timesert VS NS300L Insert System
  32. How much runout is okay?
  33. 95 concours stalling
  34. Looking for Timesert Kit
  35. '94 SLS oil pan / oil manifold / half case leaks
  36. Metal pipe coolant leak...'custom' fix???
  37. Engine apart, which direction does it crank?
  38. 94 Northstar with broken valve.
  39. Oil pressure emergency
  40. hesitation
  41. Timeserts
  42. '99 or '00 ETC?
  43. Fuel pump locking ring
  44. What else do I need to know after unhooking PCM
  45. coolant change
  46. Volant Install
  47. Rebuilt Northstars
  48. Found Rotella 10W-30 at O'Reilly auto parts
  49. PSA: Need sensors?
  50. 1999 Deville front suspension rattle
  51. 1996 Deville 4.6L Water Pump Replacement
  52. N* drive train weight
  53. felpro headgaskets
  54. N* 4.0 liter removal
  55. Smoke at startup?
  56. Whining Power Steering Pump
  57. Questions about servicing my 99 Deville
  58. Where 2 buy main and rod berings for 2004 N*
  59. Lady In Distress - '01 Northstar Intermittent Stalling & Not Starting - Clues Please?
  60. Anyone have HG pics? Not overheating but probs...
  61. Nitrous A/F findings & questions.
  62. 2 N* Questions - Coolent and Tranny Dipstick?
  63. 96 STS Head Gasket Story...
  64. cool Northstar info.
  65. Engine removal
  66. 96 Deville 4.6 North* overheating problem
  67. Hot Hot Hot Is Gone - Finally
  68. A couple Nasty Problems! HELP!
  69. How to change fuel injectors?
  70. Tips for replacing Crankshaft Position Sensors
  71. Oil pan gasket leak!
  72. Oil leak?
  73. left blinker not working when headlights on
  74. Lag in the transmission
  75. p1441 evap code help
  76. P043 -- headache -- what is happening???
  77. New here
  78. Differences in 275 & 300 HP Nstar
  79. Electric Turbo
  80. PCM swap???
  81. Northstar Blocks Cracking ?
  82. what is wrong w/ my n*
  83. Oxygen Sensors Grounding
  84. 94 Seville-Turn signals not working, smoking?
  85. trouble starting after timesert job - HELP!
  86. How do you Northstar owners like your Northstars? Would you recommend them?
  87. Northstar performance Upgrades!!!
  88. Northstar Engine Block STEEL CYL INSERTS
  89. a lil help please
  90. How do I tell if my headgasket was repaired?
  91. keep losing coolant...hard to trace
  92. '94 STS is overheating
  93. '94 SLS Idling to fast
  94. 01 Eldo - 100shot Nitrous - track results
  95. RSM Racing / No more?
  96. 2000 STS Error Codes
  97. quick engine question
  98. A few questions about the 4.0 Northstar
  99. So what would happen...
  100. engine oil leaking
  101. Oil change today after 12,735 since last oil change
  102. Help with Check engine light and pcm codes!!
  103. Is this realistic ?
  104. which car to buy
  105. fuel injector fell out!?!?
  106. exhaust sizes and upgrades?
  107. exhuast sizes an performance
  108. 1996 Deville with a small head gasket leak.
  109. Water Pump pulley
  110. Anyone have a timesert bit they could measure for me?
  111. No Spark On Hot Restart
  112. Northstar parts
  113. question on swaping out 96 northstar
  114. Engine additives...safe for N*?
  115. Transmission Problem
  116. Finally Been Done Cadillac Obd-2 N* Pcm Programmer!!!
  117. Need help one more time!!!!!
  118. hot start when cold
  119. Headgaskets - deterioration or pulled head studs?
  120. Oil Coverd Spark Plugs on Northstar
  121. 1995 new starter $1000 plus?...
  122. AC Compressor
  123. How to calculate HP to weight ratio?
  124. 300 hp northstar in a deville
  125. Belt problem
  126. motor oil?
  127. 94 DeVille..I cant get my drive belt back on. Help!!
  128. not rough idle, just abnormal, help?!
  129. help identifying parts and removing wire harness
  130. Starter Grind on 94 STS
  131. P132 (E132) ......................................... Knock Sensor Circuitry Failure
  132. Oil Pan Removal??? What am I missing
  133. N* water pump?
  134. What Year NSs Fit a '99 Deville? Need Help
  135. Well...how about ram air?
  136. Congratulations to Ranger...10000 posts
  137. Does The Tornado Really work? And Cold air intake!!!
  138. Was H. Gasket Prob Fixed in Later NStars?
  139. 2000 NS Oil Leak
  140. 94 ETC intermittent/low RPM miss
  141. Catalytic Converter Question -
  142. runaway eng Speed -Glowing exhaust -4.6L N*
  143. GM replacement surge tank cap
  144. Help installing camshafts
  145. Sound like the injectors?
  146. 94 eldo tc engine knocking (i think)
  147. Engine Roaring and Popping from dead stop
  148. 03 STS rough IDLE P0300 & U1016 Code
  149. So I went on the highway in 2nd gear...
  150. Water pump belt?
  151. Low/No Oil Pressure
  152. Leaking oil, Not leaking oil
  153. Where Is The Ecu/pcm Located.
  154. Cylinder pressure test for blown head gasket??
  155. coolant pipes - replace or repair?
  156. few head gasket procedure questions
  157. MAP Sensor Problems. Need A Little Guidance.
  158. So Mixing Different Weight Oils is OK?
  159. Fan fuse
  160. Northstar Engine Swap. Has any1 Done it?
  161. Has anyone experience there car cutting off when the fuel is low but will restart?
  162. 99 STS Turbo Update
  163. Northstar cooling system question
  164. Hot Hot Hot !!!!
  165. How exactly do Oil Life Monitors work?
  166. crankshalf sensors
  167. S060 and P039
  168. DENSO or AC Delco Spark Plugs for a Northstar?
  169. normal running temp for a northstar?
  170. Water Pump replacement on a 96 deville
  171. Gonna Have to LIve with the Lifter Tick
  172. Codes
  173. 98 sts overheating problems
  174. corsa exhaust sound clip
  175. My northstar went south
  176. Crankshaft Position Sensor dead again??!?! Symptoms?
  177. 93-95 performance parts!
  178. 2003 FWD Deville engine dying
  179. Damaged boot between intake & tb... need advice
  180. red line
  181. new o2 sensor still p030 when idle
  182. turn signal problem ('94 STS)
  183. warped heads common?
  184. radiator or head gasket????????
  185. thermostat options
  186. Bad ( burning? ) Smell
  187. ISC replacement
  188. 98 deville spark plugs
  189. Oil Level Sensor
  190. Dropping cradle today, need a bit of guidance
  191. Maff screen remove? power gains?
  192. Runnin without o2 fuses in
  193. Thoughts on G-Tech Pro
  194. PCM Programming for N*?
  195. Decreased Performance ???
  196. anyone use non-"time" serts
  197. Fuel Rail Question...
  198. portability of engine, tranny, etc
  199. Harder than heck to start my
  200. Z-rated 93/94 Seville/Eldo PCM for sale-Ebay
  201. Northstar ETC dynoed
  202. Northstar in an Allante vs an STS?
  203. Long Block Replacement
  204. Leaking Fuel Rail
  205. turning off traction control on '95 sts
  206. New Towing Hitch
  207. Overheating problem just started.
  208. Normal Oil Consumption ???
  209. 112mph???
  210. 93 N* coolant temp sensor
  211. Finally Found PCM Programmer for 96-04 N* OBD-2!!!
  212. Voltage question
  213. Oil Question?????
  214. 97' Cadillac Deville Overheating
  215. ticking throttle
  216. Best Head Gasket Sealer
  217. '94 SLS Crankshaft pully
  218. 99 seville sls
  219. 1/4 mile
  220. radiator fan not spinning
  221. Noisy Lifters
  222. Sticky lifter Update
  223. Expensive Air Filters Worth it???
  224. Coolant system question
  225. hard start when hot, not FPR
  226. An Intresting scan tool
  227. pre 99 N* water pump belt tensioner.
  228. Hard Start/ Fuel Odor
  229. Belt Pulley
  230. coolant flow question
  231. Reading data from OBD II
  232. Inaccurate Battery Voltage Display??
  233. Detonation and Pre-ignition
  234. 94 STS needs help
  235. lifting a northstar
  236. Bosch +2 plugs (report)
  237. OSD says "Change Trans Fluid"
  238. premium at the pump...or is it??
  239. Heating Up
  240. 0-60
  241. More performance
  242. cooling fan problem
  243. 1995 seville pcm problem HELP
  244. Valve Train Question
  245. I keep getting P0404 and P0441? Looking for suggestions...
  246. wiring oil pressure sensor
  247. I keep getting P0404 and P0441
  248. Cooling Fans
  249. Some N* questions
  250. Check Engine Oil Level