: Northstar Engines and System Technical Discussion



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  1. Sealing a radiator leak
  2. PCM P 0410 Secondary Air Injection System Malfunction
  3. Northstars in '95
  4. Reduced new engine power during breakin period?
  5. Boring out the N*?
  6. N* Ifr
  7. tuning software
  8. Pcm 0174
  9. Odc Ii
  10. ***New ROSS Pistons for a N* (WIth Ceramic Coating) $750***
  11. Alternator Replaced, Now Belt Squeaks, How to Fix?
  12. XLR's N* VVT rumble on startup and engine light.
  13. Quick question about a noise
  14. Help 06dts Mpg
  15. Zddp
  16. How deep do you go into motors and repairs
  17. Crank Position Sensor
  18. 94 STS cracked block
  19. Dex-cool?
  20. Performance chips
  21. It's Me again!
  22. CODES-I'm New-Check Engine light
  23. 96 SLS Head Gasket
  24. Serious help needed with 1995 northstar
  25. Cover up UGLY valve cover 95-99
  26. Who has the best warranty
  27. Annoying Tranny Whine
  28. Car just dies. Please help!
  29. service engine soon light
  30. 1993 STS running rough P053 Code
  31. 2000 Eldorado ETC Misfire #2
  32. Revisiting Airflow = Torque
  33. missed a time sert kit
  34. Newbie here and tryin to find my CKP
  35. Temperature Concerns
  36. Northstar- Starting, Running Problems
  37. 94 Seville intermittent hard start
  38. Engine miss
  39. sticker shock
  40. 9 codes today, i reckon a bad earth?
  41. oil change
  42. 70MPH pull.....
  43. reuse pistion rings?
  44. Engine Stall
  45. Contents of GM Top End Cleaner?
  46. OBDII Codes
  47. Iridium Spark plugs
  48. Oil Change
  49. Bar's Leaks J-120
  50. MAF Sensor
  51. cracked block pics
  52. possible Northstar PCM Programmer
  53. Export code
  54. Strange hole under ignition module
  55. Balls to the wall - N* style
  56. Timesert kit for sale
  57. Bank 2 identification
  58. Source of whining noise
  59. So many questions, so little time
  60. need help with p036 and p094
  61. Odin8 are you out there ?
  62. will '94 concours fuel injectors fit '96 sts?
  63. 1BadCaddy 94' STS update on power tune up.
  64. 4T80E Troubles?
  65. Coolant leak under throttle body area?
  66. After Shift Sol. Replacement...
  67. Safe amount of boos for stock motor?
  68. Found the reason why my car "jerks" during acceleration
  69. Head torque
  70. Ground Cable Location?
  71. Northstar leaking coolant....big time!
  72. Setting the timing gears and belts on 96 n* 4.6
  73. Help on hesitant start...
  74. New to forum, getting a caddy, some advice needed...
  75. Head gasket = overheat while driving or idling?
  76. Mini N*
  77. Tranny Prob, sheared pump shaft
  78. Twin Turbo N* powered 1948 Tucker
  79. cracked block
  80. Legit "Performance chip"?
  81. Missing Hose On Vacuum Purge Switch?
  82. N* water pump froze in housing
  83. coolant leak 00 sts
  84. 1990 Eldorado won't Start !
  85. started my headgasket job today
  86. is this normal or could this be my problem
  87. Anyone ever see this thing
  88. Sludge in my engine?
  89. WOT's northstar knock?
  90. STS Coolant Burping Air out of Coolant Question
  91. Oil leak
  92. N* rebuild....hmmm what to add to my mod list
  93. Keys to long lasting N*'s
  94. Complete engine overhaul, need help ASAP
  95. Cadillac Eldorado 1995 ER HELP NEEDED!!!
  96. Huge Problem, No Shop Can Fix!!!! Help!!!
  97. 04 STS misfires when idles, goes away when you floor it.
  98. northstar research thread pics 56k beware
  99. Exhaust size
  100. Plugs And Wires
  101. Which kind of FPR?
  102. 93 Seville?
  103. 96-99 motor wiring diagrams
  104. 91 Eldo STILL misses
  105. Torque vs Horsepower primer
  106. Crankshaft Position Sensor Replaced-Code Still Set P0385
  107. Water pump question on 94 STS
  108. Is it possible to lose HP
  109. Performance tune-up for 94 North*using performance coils.
  110. 97 N* Shaky idle
  111. 97 N8 port, polish and valve job
  112. Differance between 94 and 97 N*
  113. Question about the transmission fluid
  114. Northstar Misfire... no error codes
  115. More Horsepower
  116. Volant Review / So I did it without instructions.
  117. Tranny Prob, Please help!!
  118. High oil consumption (1 quart/week!!)
  119. A/C question/help for 94 STS
  120. Magnets Increase Mileage/Power??
  121. TC0047 Code
  122. Need some help installing Volant
  123. Add Engine Oil alert
  124. P1860... Problem
  125. loss of fuel pressure
  126. O2 sensor change, mpg improvement?
  127. Northstar heads(all) and ECU Chip(93-95). Real power!
  128. 97 deville-changing plugs and wires
  129. NS300L Insert kit
  130. Head gasket set
  131. Coolant Change?
  132. P0441... P0404... ?
  133. P0533... fuel gauge is going nuts
  134. Trans Solenoids??
  135. Timesert VS NS300L Insert System
  136. How much runout is okay?
  137. 95 concours stalling
  138. Looking for Timesert Kit
  139. '94 SLS oil pan / oil manifold / half case leaks
  140. Metal pipe coolant leak...'custom' fix???
  141. Engine apart, which direction does it crank?
  142. 94 Northstar with broken valve.
  143. Oil pressure emergency
  144. hesitation
  145. Timeserts
  146. '99 or '00 ETC?
  147. Fuel pump locking ring
  148. What else do I need to know after unhooking PCM
  149. coolant change
  150. Volant Install
  151. Rebuilt Northstars
  152. Found Rotella 10W-30 at O'Reilly auto parts
  153. PSA: Need sensors?
  154. 1999 Deville front suspension rattle
  155. 1996 Deville 4.6L Water Pump Replacement
  156. N* drive train weight
  157. felpro headgaskets
  158. N* 4.0 liter removal
  159. Smoke at startup?
  160. Whining Power Steering Pump
  161. Questions about servicing my 99 Deville
  162. Where 2 buy main and rod berings for 2004 N*
  163. Lady In Distress - '01 Northstar Intermittent Stalling & Not Starting - Clues Please?
  164. Anyone have HG pics? Not overheating but probs...
  165. Nitrous A/F findings & questions.
  166. 2 N* Questions - Coolent and Tranny Dipstick?
  167. 96 STS Head Gasket Story...
  168. cool Northstar info.
  169. Engine removal
  170. 96 Deville 4.6 North* overheating problem
  171. Hot Hot Hot Is Gone - Finally
  172. A couple Nasty Problems! HELP!
  173. How to change fuel injectors?
  174. Tips for replacing Crankshaft Position Sensors
  175. Oil pan gasket leak!
  176. Oil leak?
  177. left blinker not working when headlights on
  178. Lag in the transmission
  179. p1441 evap code help
  180. P043 -- headache -- what is happening???
  181. New here
  182. Differences in 275 & 300 HP Nstar
  183. Electric Turbo
  184. PCM swap???
  185. Northstar Blocks Cracking ?
  186. what is wrong w/ my n*
  187. Oxygen Sensors Grounding
  188. 94 Seville-Turn signals not working, smoking?
  189. trouble starting after timesert job - HELP!
  190. How do you Northstar owners like your Northstars? Would you recommend them?
  191. Northstar performance Upgrades!!!
  192. Northstar Engine Block STEEL CYL INSERTS
  193. a lil help please
  194. How do I tell if my headgasket was repaired?
  195. keep losing coolant...hard to trace
  196. '94 STS is overheating
  197. '94 SLS Idling to fast
  198. 01 Eldo - 100shot Nitrous - track results
  199. RSM Racing / No more?
  200. 2000 STS Error Codes
  201. quick engine question
  202. A few questions about the 4.0 Northstar
  203. So what would happen...
  204. engine oil leaking
  205. Oil change today after 12,735 since last oil change
  206. Help with Check engine light and pcm codes!!
  207. Is this realistic ?
  208. which car to buy
  209. fuel injector fell out!?!?
  210. exhaust sizes and upgrades?
  211. exhuast sizes an performance
  212. 1996 Deville with a small head gasket leak.
  213. Water Pump pulley
  214. Anyone have a timesert bit they could measure for me?
  215. No Spark On Hot Restart
  216. Northstar parts
  217. question on swaping out 96 northstar
  218. Engine additives...safe for N*?
  219. Transmission Problem
  220. Finally Been Done Cadillac Obd-2 N* Pcm Programmer!!!
  221. Need help one more time!!!!!
  222. hot start when cold
  223. Headgaskets - deterioration or pulled head studs?
  224. Oil Coverd Spark Plugs on Northstar
  225. 1995 new starter $1000 plus?...
  226. AC Compressor
  227. How to calculate HP to weight ratio?
  228. 300 hp northstar in a deville
  229. Belt problem
  230. motor oil?
  231. 94 DeVille..I cant get my drive belt back on. Help!!
  232. not rough idle, just abnormal, help?!
  233. help identifying parts and removing wire harness
  234. Starter Grind on 94 STS
  235. P132 (E132) ......................................... Knock Sensor Circuitry Failure
  236. Oil Pan Removal??? What am I missing
  237. N* water pump?
  238. What Year NSs Fit a '99 Deville? Need Help
  239. Well...how about ram air?
  240. Congratulations to Ranger...10000 posts
  241. Does The Tornado Really work? And Cold air intake!!!
  242. Was H. Gasket Prob Fixed in Later NStars?
  243. 2000 NS Oil Leak
  244. 94 ETC intermittent/low RPM miss
  245. Catalytic Converter Question -
  246. runaway eng Speed -Glowing exhaust -4.6L N*
  247. GM replacement surge tank cap
  248. Help installing camshafts
  249. Sound like the injectors?
  250. 94 eldo tc engine knocking (i think)