: Northstar Engines and System Technical Discussion



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  1. Volant Review / So I did it without instructions.
  2. Tranny Prob, Please help!!
  3. High oil consumption (1 quart/week!!)
  4. A/C question/help for 94 STS
  5. Magnets Increase Mileage/Power??
  6. TC0047 Code
  7. Need some help installing Volant
  8. Add Engine Oil alert
  9. P1860... Problem
  10. loss of fuel pressure
  11. O2 sensor change, mpg improvement?
  12. Northstar heads(all) and ECU Chip(93-95). Real power!
  13. 97 deville-changing plugs and wires
  14. NS300L Insert kit
  15. Head gasket set
  16. Coolant Change?
  17. P0441... P0404... ?
  18. P0533... fuel gauge is going nuts
  19. Trans Solenoids??
  20. Timesert VS NS300L Insert System
  21. How much runout is okay?
  22. 95 concours stalling
  23. Looking for Timesert Kit
  24. '94 SLS oil pan / oil manifold / half case leaks
  25. Metal pipe coolant leak...'custom' fix???
  26. Engine apart, which direction does it crank?
  27. 94 Northstar with broken valve.
  28. Oil pressure emergency
  29. hesitation
  30. Timeserts
  31. '99 or '00 ETC?
  32. Fuel pump locking ring
  33. What else do I need to know after unhooking PCM
  34. coolant change
  35. Volant Install
  36. Rebuilt Northstars
  37. Found Rotella 10W-30 at O'Reilly auto parts
  38. PSA: Need sensors?
  39. 1999 Deville front suspension rattle
  40. 1996 Deville 4.6L Water Pump Replacement
  41. N* drive train weight
  42. felpro headgaskets
  43. N* 4.0 liter removal
  44. Smoke at startup?
  45. Whining Power Steering Pump
  46. Questions about servicing my 99 Deville
  47. Where 2 buy main and rod berings for 2004 N*
  48. Lady In Distress - '01 Northstar Intermittent Stalling & Not Starting - Clues Please?
  49. Anyone have HG pics? Not overheating but probs...
  50. Nitrous A/F findings & questions.
  51. 2 N* Questions - Coolent and Tranny Dipstick?
  52. 96 STS Head Gasket Story...
  53. cool Northstar info.
  54. Engine removal
  55. 96 Deville 4.6 North* overheating problem
  56. Hot Hot Hot Is Gone - Finally
  57. A couple Nasty Problems! HELP!
  58. How to change fuel injectors?
  59. Tips for replacing Crankshaft Position Sensors
  60. Oil pan gasket leak!
  61. Oil leak?
  62. left blinker not working when headlights on
  63. Lag in the transmission
  64. p1441 evap code help
  65. P043 -- headache -- what is happening???
  66. New here
  67. Differences in 275 & 300 HP Nstar
  68. Electric Turbo
  69. PCM swap???
  70. Northstar Blocks Cracking ?
  71. what is wrong w/ my n*
  72. Oxygen Sensors Grounding
  73. 94 Seville-Turn signals not working, smoking?
  74. trouble starting after timesert job - HELP!
  75. How do you Northstar owners like your Northstars? Would you recommend them?
  76. Northstar performance Upgrades!!!
  77. Northstar Engine Block STEEL CYL INSERTS
  78. a lil help please
  79. How do I tell if my headgasket was repaired?
  80. keep losing coolant...hard to trace
  81. '94 STS is overheating
  82. '94 SLS Idling to fast
  83. 01 Eldo - 100shot Nitrous - track results
  84. RSM Racing / No more?
  85. 2000 STS Error Codes
  86. quick engine question
  87. A few questions about the 4.0 Northstar
  88. So what would happen...
  89. engine oil leaking
  90. Oil change today after 12,735 since last oil change
  91. Help with Check engine light and pcm codes!!
  92. Is this realistic ?
  93. which car to buy
  94. fuel injector fell out!?!?
  95. exhaust sizes and upgrades?
  96. exhuast sizes an performance
  97. 1996 Deville with a small head gasket leak.
  98. Water Pump pulley
  99. Anyone have a timesert bit they could measure for me?
  100. No Spark On Hot Restart
  101. Northstar parts
  102. question on swaping out 96 northstar
  103. Engine additives...safe for N*?
  104. Transmission Problem
  105. Finally Been Done Cadillac Obd-2 N* Pcm Programmer!!!
  106. Need help one more time!!!!!
  107. hot start when cold
  108. Headgaskets - deterioration or pulled head studs?
  109. Oil Coverd Spark Plugs on Northstar
  110. 1995 new starter $1000 plus?...
  111. AC Compressor
  112. How to calculate HP to weight ratio?
  113. 300 hp northstar in a deville
  114. Belt problem
  115. motor oil?
  116. 94 DeVille..I cant get my drive belt back on. Help!!
  117. not rough idle, just abnormal, help?!
  118. help identifying parts and removing wire harness
  119. Starter Grind on 94 STS
  120. P132 (E132) ......................................... Knock Sensor Circuitry Failure
  121. Oil Pan Removal??? What am I missing
  122. N* water pump?
  123. What Year NSs Fit a '99 Deville? Need Help
  124. Well...how about ram air?
  125. Congratulations to Ranger...10000 posts
  126. Does The Tornado Really work? And Cold air intake!!!
  127. Was H. Gasket Prob Fixed in Later NStars?
  128. 2000 NS Oil Leak
  129. 94 ETC intermittent/low RPM miss
  130. Catalytic Converter Question -
  131. runaway eng Speed -Glowing exhaust -4.6L N*
  132. GM replacement surge tank cap
  133. Help installing camshafts
  134. Sound like the injectors?
  135. 94 eldo tc engine knocking (i think)
  136. Engine Roaring and Popping from dead stop
  137. 03 STS rough IDLE P0300 & U1016 Code
  138. So I went on the highway in 2nd gear...
  139. Water pump belt?
  140. Low/No Oil Pressure
  141. Leaking oil, Not leaking oil
  142. Where Is The Ecu/pcm Located.
  143. Cylinder pressure test for blown head gasket??
  144. coolant pipes - replace or repair?
  145. few head gasket procedure questions
  146. MAP Sensor Problems. Need A Little Guidance.
  147. So Mixing Different Weight Oils is OK?
  148. Fan fuse
  149. Northstar Engine Swap. Has any1 Done it?
  150. Has anyone experience there car cutting off when the fuel is low but will restart?
  151. 99 STS Turbo Update
  152. Northstar cooling system question
  153. Hot Hot Hot !!!!
  154. How exactly do Oil Life Monitors work?
  155. crankshalf sensors
  156. S060 and P039
  157. DENSO or AC Delco Spark Plugs for a Northstar?
  158. normal running temp for a northstar?
  159. Water Pump replacement on a 96 deville
  160. Gonna Have to LIve with the Lifter Tick
  161. Codes
  162. 98 sts overheating problems
  163. corsa exhaust sound clip
  164. My northstar went south
  165. Crankshaft Position Sensor dead again??!?! Symptoms?
  166. 93-95 performance parts!
  167. 2003 FWD Deville engine dying
  168. Damaged boot between intake & tb... need advice
  169. red line
  170. new o2 sensor still p030 when idle
  171. turn signal problem ('94 STS)
  172. warped heads common?
  173. radiator or head gasket????????
  174. thermostat options
  175. Bad ( burning? ) Smell
  176. ISC replacement
  177. 98 deville spark plugs
  178. Oil Level Sensor
  179. Dropping cradle today, need a bit of guidance
  180. Maff screen remove? power gains?
  181. Runnin without o2 fuses in
  182. Thoughts on G-Tech Pro
  183. PCM Programming for N*?
  184. Decreased Performance ???
  185. anyone use non-"time" serts
  186. Fuel Rail Question...
  187. portability of engine, tranny, etc
  188. Harder than heck to start my
  189. Z-rated 93/94 Seville/Eldo PCM for sale-Ebay
  190. Northstar ETC dynoed
  191. Northstar in an Allante vs an STS?
  192. Long Block Replacement
  193. Leaking Fuel Rail
  194. turning off traction control on '95 sts
  195. New Towing Hitch
  196. Overheating problem just started.
  197. Normal Oil Consumption ???
  198. 112mph???
  199. 93 N* coolant temp sensor
  200. Finally Found PCM Programmer for 96-04 N* OBD-2!!!
  201. Voltage question
  202. Oil Question?????
  203. 97' Cadillac Deville Overheating
  204. ticking throttle
  205. Best Head Gasket Sealer
  206. '94 SLS Crankshaft pully
  207. 99 seville sls
  208. 1/4 mile
  209. radiator fan not spinning
  210. Noisy Lifters
  211. Sticky lifter Update
  212. Expensive Air Filters Worth it???
  213. Coolant system question
  214. hard start when hot, not FPR
  215. An Intresting scan tool
  216. pre 99 N* water pump belt tensioner.
  217. Hard Start/ Fuel Odor
  218. Belt Pulley
  219. coolant flow question
  220. Reading data from OBD II
  221. Inaccurate Battery Voltage Display??
  222. Detonation and Pre-ignition
  223. 94 STS needs help
  224. lifting a northstar
  225. Bosch +2 plugs (report)
  226. OSD says "Change Trans Fluid"
  227. premium at the pump...or is it??
  228. Heating Up
  229. 0-60
  230. More performance
  231. cooling fan problem
  232. 1995 seville pcm problem HELP
  233. Valve Train Question
  234. I keep getting P0404 and P0441? Looking for suggestions...
  235. wiring oil pressure sensor
  236. I keep getting P0404 and P0441
  237. Cooling Fans
  238. Some N* questions
  239. Check Engine Oil Level
  240. This N* is living a good life...
  241. Read TECH TIPS FPR - More Info needed
  242. Intakes
  243. 93 sts running rough only when hot
  244. What does "B2118 - Front Vertical Sensor Failed" mean?
  245. Anti-Sieze and Spark Plugs
  246. Intake Manifold questions - chime in!
  247. thermostat for north star
  248. Preparing for coolant change / Double Checking.
  249. 95 Intake Manifold Interchange?
  250. p0741 trouble code