: Northstar Engines and System Technical Discussion



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