: Northstar Engines and System Technical Discussion



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