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View Full Version : Northstar Performance and Technical Discussion

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