: Northstar Engines and System Technical Discussion



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  1. Ready to rebuild-best source for tserts and bearings
  2. Stability Reduced? wut?
  3. Compression numbers for the North*
  4. Options to repair ONE engine block thread
  5. What ever happened to the supercarger for N*?
  6. Torquing of Rocker????
  7. Minor Problem with my 94 SLS
  8. Chip & Bored T/B ???
  9. Why with the Northstar 4.6?
  10. PCM reflash for 95
  11. Sooooo....
  12. cam torque
  13. Blwoin a little smoke..
  14. casting number ID
  15. DANG - Trouble Codes Question
  16. Need some help..abs troubles?
  17. I saw a smoking Deville
  18. PCM Question II
  19. Air intake and airflow
  20. Trans making noise in park and neutral
  21. water pump replacement
  22. Pcm?
  23. STS Engine Cut-Out
  24. 94 SLS 4.6 showing oil pressure
  25. Performance transmission
  26. Aftermarket air intake...
  27. TCS C1287/C1286 help please
  28. Pics..pics...pics.....pics........
  29. Computer Swap Ok?
  30. MIL's - Anyone tried them yet?
  31. Anyone ever done or heard about doing this?
  32. Stumped (P0307)
  33. pressure control circuit code 076
  34. 94 Eldorado 4.6 starting problem
  35. Anyone have sound clips of their exhaust?
  36. 98deville whole computer lit up
  37. TPS autolearn for 1995
  38. '96 DeVille...New Owner...Am I NUTS??
  39. Turbo Track Times
  40. Anyone with rough starts, loss of power..read this.
  41. G-tech pro times.
  42. That's what I call stopping a leak!
  43. Need Valve Body Torque Secs ASAP Please
  44. 98 deville x grandpa mobile
  45. Northstar Experts Please Stand Up.....
  46. Robert Benham
  47. Bleeding air out of cooling system
  48. I think I blew it up
  49. northstar rough accleration/idle
  50. ALBUNDY - can't PM you
  51. Gm top engine cleaner
  52. transmission interchange
  53. 96 deville N* cats question
  54. 94 SLS I seem to be on a losing streak!
  55. Premium vs. Regular
  56. coolant fans
  57. Overheat Part 3
  58. coolant loss
  59. 94 Eldorado Power Steering Fluid?
  60. Big Serts installation
  61. lifter noise?
  62. Some advice
  63. Overheat, Part 2
  64. 2000 STS MAP sensor voltage high?
  65. FRP Help!! ASAP!!
  66. Overheat!
  67. 1999 Eldorado won't start and left me stranded
  68. Anyone use "regular" plug wires in N*?
  69. Higher Stall Converter...
  70. i think i found a fuel control system.
  71. 94 SLS radiator hydraulic line
  72. K&N Intake...I want one!
  73. ABS wiring diagram
  74. What are the available Northstar aftermarket performance parts?
  75. Northstar Oil Leak
  76. Northstar in the 1997-1999 Deville.. questions.
  77. N* with nitrous.
  78. 5000 mile or wait for oil life trigger?
  79. Hi Flow Cat converter to go with Corsa Exhaust, which one?
  80. MSD coils? I hit 104
  81. eldorado1- throttle body for 94 eldo available?
  82. need IAC, TPS, MAP sensors?
  83. 4.6 caddy vs. olds 4.0
  84. Has anyone here added performance parts to a 94 eldorado
  85. Bad coil packs or what?
  86. northstar battery
  87. 94 eldorado bad starter possibly?
  88. Starter change 94 SLS
  89. What's happening to the messages display?
  90. Day after alternator replace, now I need a new belt...coincidence?
  91. block off EGR
  92. Transmisson monitor??
  93. Water pump leak??
  94. Will machined heads mess up the ECU due to increased compression ?
  95. The Turbonator
  96. 96 STS engine swap
  97. Ok explain this.............
  98. Oil on sparkplugs??
  99. need help 96 deville
  100. North Star Temperature
  101. History Codes ??? & P0420
  102. VSS....how hard is it to change?
  103. Engine is not cranking - starter is fine
  104. Oil Leak
  105. Is head gasket a common problem with sts
  106. Please Help!!!!!!!!!
  107. Im running with no suppliment....
  108. Whirring noise.....you thinks its the alternator?
  109. Wot?
  110. 5W30 vs 10W30, pre 2000 Northstar 84 degree weather
  111. Thermagasket, cylinder head repair goop
  112. Head Gasket Repair - DIY?
  113. 4T80E heartbreak with pictures
  114. N* Replacement
  115. Northstar Motor Mechanic From Dealer
  116. Fuel Pump 95 SLS
  117. Minor value cover (head cover) leaks???Concern???
  118. N* Head Gasket Job, What parts should i BUY
  119. Jasper Engines HEAT TAB
  120. Head Gaskets Again !?!?
  121. 96 deville codes/very sluggish start
  122. n* experts chime in
  123. NorthStar Supercharger!!!
  124. 1997 Deville Coolant Flush
  125. I think i got this Traction Control thing figured out!
  126. Northstar Brainteaser
  127. New Northstar in 2008? Ultra?
  128. Service Engine Light and history codes
  129. Whats code 94?
  130. DIY Replace Coolant for 94 STS
  131. Lower Crankcase Reseal
  132. PC0300 with troubleshoot. Coil Resistance?
  133. '94 Eldorado Coolant change. Help!
  134. Squeaking belt noise - Help!
  135. oil change timing
  136. changed FPR now P0507 code?
  137. need help with water pump.
  138. Fix it or not? Head Gasket.
  139. Future 1996 STS buyer
  140. update on Polyisobutylene
  141. So, I took it to Cottman........
  142. 03 DTS Major Tune Up
  143. Codes, Codes, and more codes....
  144. First WOT on Grandma Owned N*
  145. Tech Manual
  146. What are the performance number of the SLS,DHS
  147. 98 Seville engine mount
  148. N* all OBDII?
  149. EGR Valve Cleaning and Location
  150. How To Replace O2 Sensor Bank 1 Sensor 1
  151. 93 Eldo transaxle
  152. Intake Bolts
  153. Fuel rail/line recall
  154. Saw an interesting Swap today.... (56k take a nap)
  155. Need some help from someone with a 96-99 manual
  156. Not enough WOTs?
  157. another problem solved! N* stutter gone
  158. Coolant Eats Gasket?
  159. Starter Idiocy?
  160. Have you tried Polyisobutylene ??
  161. How to Remove EGR Valve
  162. Granatelli Trans Tuner - Anyone try this?
  163. Granatelli Trans Tuner - Anyone try this?
  164. Performance Survey - New Owner - Seeking Ideas
  165. 94 STS - Throttle Plate Orientation
  166. cruise linkage
  167. 95 STS hi-rpm and auto-acceleration problem
  168. Data on the northstar
  169. Buy a N* with a blown head gasket - Dumb idea?
  170. Weird Idle Issues
  171. 1994 Concourse stuttering
  172. Cooling Fans
  173. Coolant supplement clogged T stat
  174. ghost in the machine
  175. Turbo STS Dyno results
  176. PCM Source
  177. 99 Deville misfire and fuel sensor
  178. Learning about Torque Convertor and solenoid
  179. Casper Electronics TPS Enhancer
  180. What year Nstars fit '99 Deville?
  181. Help:Crankshaft Sensor Replacement
  182. Torque convertor can damage the solenoids?
  183. What will it take to get you to buy a 80mm throttle body?
  184. Is this a "freeze plug"?
  185. Is this a 95 intake?
  186. Weird Hydraulic whine, maybe tranny????
  187. # 8 misfire
  188. where are the plugs on my 03 dhs northstar engine?
  189. Water Leak
  190. 4T80E vs Dexron VI, GM new standard
  191. 200,000 mile mark reality? 1996 STS NStar
  192. It wasnt a hole in the block!!!!!
  193. Just Bought a Granma owned NS w/81K-WOT?
  194. please help!?!?!?!?!
  195. High volt MAP
  196. Rough Idle and Stuttering Acceleration
  197. 94 seville sls oil pan gasket replacement...
  198. 97 headgaskets what else should be done?
  199. Differences in the Northstar engines
  200. PCM info for NorthStar
  201. accessing rear spark plugs
  202. 99 STS Turbo charged video
  203. 1994 Eldorado P083 Code?
  204. Looking for help with Codes
  205. What's this noise....
  206. How do you I.D. an engine?
  207. Expansion tank leaking...
  208. Engine ID
  209. 1994 eldorado fuel pump
  210. unchanged SP wires longevity?
  211. Launch Control for N* ignition
  212. coolant loss
  213. Can I fix my 01 Northstar myself?
  214. Turbo WOT 7psi to REDLINE
  215. 0101 MAF-continues
  216. Turbo Update
  217. changing out o2 sensor on 97 deville
  218. P0404 - Exhaust Gas Recirculation (EGR) Open Position Performance?
  219. deciphering DTC messages into plain English
  220. Cylinder Head Info!
  221. Northstar noise
  222. Best Code Reader/Scanner?
  223. EGR change w/ SS fuel rail- trick maybe
  224. Where is the INPUT SPEED SENSOR?
  225. 97 deville fuel problem
  226. GM coolant additive???
  227. Car wont start
  228. Serpentine belt
  229. no overdrive in my 98 eldo
  230. Really Head Gasket?
  231. New plugs and wires, now misfire
  232. STS Tranny trouble
  233. Improper Sparg plug gap, what happens?
  234. 94 STS hesitates or stumbles
  235. Need a Timesert kit
  236. its been a little while but i am back for good!!
  237. Stalls after fill-up
  238. High Oil Consumption *INFO*
  239. I got porked...Blown N*.
  240. Glowing red exhaust manifolds
  241. Pop Off / Backfire Valve Replacement
  242. fuel filter location?
  243. Pictures of Turbo Project
  244. Head gasket compressed thickness
  245. Emission Codes
  246. Extremely Rough Idle... Cracked Intake Manifold?
  247. Spark Plug Gap
  248. Biggest Problems with the N*'s?
  249. 1999 STS - Timesert question
  250. Gurgling Sound/ Trapped Air in Coolant System