: Northstar Engines and System Technical Discussion



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  1. Help 06dts Mpg
  2. Zddp
  3. How deep do you go into motors and repairs
  4. Crank Position Sensor
  5. 94 STS cracked block
  6. Dex-cool?
  7. Performance chips
  8. It's Me again!
  9. CODES-I'm New-Check Engine light
  10. 96 SLS Head Gasket
  11. Serious help needed with 1995 northstar
  12. Cover up UGLY valve cover 95-99
  13. Who has the best warranty
  14. Annoying Tranny Whine
  15. Car just dies. Please help!
  16. service engine soon light
  17. 1993 STS running rough P053 Code
  18. 2000 Eldorado ETC Misfire #2
  19. Revisiting Airflow = Torque
  20. missed a time sert kit
  21. Newbie here and tryin to find my CKP
  22. Temperature Concerns
  23. Northstar- Starting, Running Problems
  24. 94 Seville intermittent hard start
  25. Engine miss
  26. sticker shock
  27. 9 codes today, i reckon a bad earth?
  28. oil change
  29. 70MPH pull.....
  30. reuse pistion rings?
  31. Engine Stall
  32. Contents of GM Top End Cleaner?
  33. OBDII Codes
  34. Iridium Spark plugs
  35. Oil Change
  36. Bar's Leaks J-120
  37. MAF Sensor
  38. cracked block pics
  39. possible Northstar PCM Programmer
  40. Export code
  41. Strange hole under ignition module
  42. Balls to the wall - N* style
  43. Timesert kit for sale
  44. Bank 2 identification
  45. Source of whining noise
  46. So many questions, so little time
  47. need help with p036 and p094
  48. Odin8 are you out there ?
  49. will '94 concours fuel injectors fit '96 sts?
  50. 1BadCaddy 94' STS update on power tune up.
  51. 4T80E Troubles?
  52. Coolant leak under throttle body area?
  53. After Shift Sol. Replacement...
  54. Safe amount of boos for stock motor?
  55. Found the reason why my car "jerks" during acceleration
  56. Head torque
  57. Ground Cable Location?
  58. Northstar leaking coolant....big time!
  59. Setting the timing gears and belts on 96 n* 4.6
  60. Help on hesitant start...
  61. New to forum, getting a caddy, some advice needed...
  62. Head gasket = overheat while driving or idling?
  63. Mini N*
  64. Tranny Prob, sheared pump shaft
  65. Twin Turbo N* powered 1948 Tucker
  66. cracked block
  67. Legit "Performance chip"?
  68. Missing Hose On Vacuum Purge Switch?
  69. N* water pump froze in housing
  70. coolant leak 00 sts
  71. 1990 Eldorado won't Start !
  72. started my headgasket job today
  73. is this normal or could this be my problem
  74. Anyone ever see this thing
  75. Sludge in my engine?
  76. WOT's northstar knock?
  77. STS Coolant Burping Air out of Coolant Question
  78. Oil leak
  79. N* rebuild....hmmm what to add to my mod list
  80. Keys to long lasting N*'s
  81. Complete engine overhaul, need help ASAP
  82. Cadillac Eldorado 1995 ER HELP NEEDED!!!
  83. Huge Problem, No Shop Can Fix!!!! Help!!!
  84. 04 STS misfires when idles, goes away when you floor it.
  85. northstar research thread pics 56k beware
  86. Exhaust size
  87. Plugs And Wires
  88. Which kind of FPR?
  89. 93 Seville?
  90. 96-99 motor wiring diagrams
  91. 91 Eldo STILL misses
  92. Torque vs Horsepower primer
  93. Crankshaft Position Sensor Replaced-Code Still Set P0385
  94. Water pump question on 94 STS
  95. Is it possible to lose HP
  96. Performance tune-up for 94 North*using performance coils.
  97. 97 N* Shaky idle
  98. 97 N8 port, polish and valve job
  99. Differance between 94 and 97 N*
  100. Question about the transmission fluid
  101. Northstar Misfire... no error codes
  102. More Horsepower
  103. Volant Review / So I did it without instructions.
  104. Tranny Prob, Please help!!
  105. High oil consumption (1 quart/week!!)
  106. A/C question/help for 94 STS
  107. Magnets Increase Mileage/Power??
  108. TC0047 Code
  109. Need some help installing Volant
  110. Add Engine Oil alert
  111. P1860... Problem
  112. loss of fuel pressure
  113. O2 sensor change, mpg improvement?
  114. Northstar heads(all) and ECU Chip(93-95). Real power!
  115. 97 deville-changing plugs and wires
  116. NS300L Insert kit
  117. Head gasket set
  118. Coolant Change?
  119. P0441... P0404... ?
  120. P0533... fuel gauge is going nuts
  121. Trans Solenoids??
  122. Timesert VS NS300L Insert System
  123. How much runout is okay?
  124. 95 concours stalling
  125. Looking for Timesert Kit
  126. '94 SLS oil pan / oil manifold / half case leaks
  127. Metal pipe coolant leak...'custom' fix???
  128. Engine apart, which direction does it crank?
  129. 94 Northstar with broken valve.
  130. Oil pressure emergency
  131. hesitation
  132. Timeserts
  133. '99 or '00 ETC?
  134. Fuel pump locking ring
  135. What else do I need to know after unhooking PCM
  136. coolant change
  137. Volant Install
  138. Rebuilt Northstars
  139. Found Rotella 10W-30 at O'Reilly auto parts
  140. PSA: Need sensors?
  141. 1999 Deville front suspension rattle
  142. 1996 Deville 4.6L Water Pump Replacement
  143. N* drive train weight
  144. felpro headgaskets
  145. N* 4.0 liter removal
  146. Smoke at startup?
  147. Whining Power Steering Pump
  148. Questions about servicing my 99 Deville
  149. Where 2 buy main and rod berings for 2004 N*
  150. Lady In Distress - '01 Northstar Intermittent Stalling & Not Starting - Clues Please?
  151. Anyone have HG pics? Not overheating but probs...
  152. Nitrous A/F findings & questions.
  153. 2 N* Questions - Coolent and Tranny Dipstick?
  154. 96 STS Head Gasket Story...
  155. cool Northstar info.
  156. Engine removal
  157. 96 Deville 4.6 North* overheating problem
  158. Hot Hot Hot Is Gone - Finally
  159. A couple Nasty Problems! HELP!
  160. How to change fuel injectors?
  161. Tips for replacing Crankshaft Position Sensors
  162. Oil pan gasket leak!
  163. Oil leak?
  164. left blinker not working when headlights on
  165. Lag in the transmission
  166. p1441 evap code help
  167. P043 -- headache -- what is happening???
  168. New here
  169. Differences in 275 & 300 HP Nstar
  170. Electric Turbo
  171. PCM swap???
  172. Northstar Blocks Cracking ?
  173. what is wrong w/ my n*
  174. Oxygen Sensors Grounding
  175. 94 Seville-Turn signals not working, smoking?
  176. trouble starting after timesert job - HELP!
  177. How do you Northstar owners like your Northstars? Would you recommend them?
  178. Northstar performance Upgrades!!!
  179. Northstar Engine Block STEEL CYL INSERTS
  180. a lil help please
  181. How do I tell if my headgasket was repaired?
  182. keep losing coolant...hard to trace
  183. '94 STS is overheating
  184. '94 SLS Idling to fast
  185. 01 Eldo - 100shot Nitrous - track results
  186. RSM Racing / No more?
  187. 2000 STS Error Codes
  188. quick engine question
  189. A few questions about the 4.0 Northstar
  190. So what would happen...
  191. engine oil leaking
  192. Oil change today after 12,735 since last oil change
  193. Help with Check engine light and pcm codes!!
  194. Is this realistic ?
  195. which car to buy
  196. fuel injector fell out!?!?
  197. exhaust sizes and upgrades?
  198. exhuast sizes an performance
  199. 1996 Deville with a small head gasket leak.
  200. Water Pump pulley
  201. Anyone have a timesert bit they could measure for me?
  202. No Spark On Hot Restart
  203. Northstar parts
  204. question on swaping out 96 northstar
  205. Engine additives...safe for N*?
  206. Transmission Problem
  207. Finally Been Done Cadillac Obd-2 N* Pcm Programmer!!!
  208. Need help one more time!!!!!
  209. hot start when cold
  210. Headgaskets - deterioration or pulled head studs?
  211. Oil Coverd Spark Plugs on Northstar
  212. 1995 new starter $1000 plus?...
  213. AC Compressor
  214. How to calculate HP to weight ratio?
  215. 300 hp northstar in a deville
  216. Belt problem
  217. motor oil?
  218. 94 DeVille..I cant get my drive belt back on. Help!!
  219. not rough idle, just abnormal, help?!
  220. help identifying parts and removing wire harness
  221. Starter Grind on 94 STS
  222. P132 (E132) ......................................... Knock Sensor Circuitry Failure
  223. Oil Pan Removal??? What am I missing
  224. N* water pump?
  225. What Year NSs Fit a '99 Deville? Need Help
  226. Well...how about ram air?
  227. Congratulations to Ranger...10000 posts
  228. Does The Tornado Really work? And Cold air intake!!!
  229. Was H. Gasket Prob Fixed in Later NStars?
  230. 2000 NS Oil Leak
  231. 94 ETC intermittent/low RPM miss
  232. Catalytic Converter Question -
  233. runaway eng Speed -Glowing exhaust -4.6L N*
  234. GM replacement surge tank cap
  235. Help installing camshafts
  236. Sound like the injectors?
  237. 94 eldo tc engine knocking (i think)
  238. Engine Roaring and Popping from dead stop
  239. 03 STS rough IDLE P0300 & U1016 Code
  240. So I went on the highway in 2nd gear...
  241. Water pump belt?
  242. Low/No Oil Pressure
  243. Leaking oil, Not leaking oil
  244. Where Is The Ecu/pcm Located.
  245. Cylinder pressure test for blown head gasket??
  246. coolant pipes - replace or repair?
  247. few head gasket procedure questions
  248. MAP Sensor Problems. Need A Little Guidance.
  249. So Mixing Different Weight Oils is OK?
  250. Fan fuse