: Northstar Engines and System Technical Discussion



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  1. what to do about SO codes...
  2. overfilled tranny....
  3. OBD1 chip reprogramming?
  4. Hey Check Out What Im Doing....
  5. 95-6 transmission harness
  6. new headbolts
  7. Torque Converter Clutch Stuck...How to Fix??
  8. BS? "aftermarket Mass Air Sensor = improved hp, torque and mileage from your car"
  9. pulling engine, top or bottom???
  10. RANGER: Can't Identify Codes...
  11. 1996 1/8th mile times!
  12. '96 SDV Update...2 Codes...Help??
  13. Need a new alternator......
  14. Cranking but not starting.. fuel pump relay?
  15. EXP ID 83, 84, 140, 25 ??? Any Help?
  16. timesert kit for sale
  17. Factory Specs for Compression??
  18. torque wrench advice
  19. Stripped Oil Pan Bolt Hole
  20. Would you like some cheese and crackers with that Whine?
  21. Ready to rebuild-best source for tserts and bearings
  22. Stability Reduced? wut?
  23. Compression numbers for the North*
  24. Options to repair ONE engine block thread
  25. What ever happened to the supercarger for N*?
  26. Torquing of Rocker????
  27. Minor Problem with my 94 SLS
  28. Chip & Bored T/B ???
  29. Why with the Northstar 4.6?
  30. PCM reflash for 95
  31. Sooooo....
  32. cam torque
  33. Blwoin a little smoke..
  34. casting number ID
  35. DANG - Trouble Codes Question
  36. Need some help..abs troubles?
  37. I saw a smoking Deville
  38. PCM Question II
  39. Air intake and airflow
  40. Trans making noise in park and neutral
  41. water pump replacement
  42. Pcm?
  43. STS Engine Cut-Out
  44. 94 SLS 4.6 showing oil pressure
  45. Performance transmission
  46. Aftermarket air intake...
  47. TCS C1287/C1286 help please
  48. Pics..pics...pics.....pics........
  49. Computer Swap Ok?
  50. MIL's - Anyone tried them yet?
  51. Anyone ever done or heard about doing this?
  52. Stumped (P0307)
  53. pressure control circuit code 076
  54. 94 Eldorado 4.6 starting problem
  55. Anyone have sound clips of their exhaust?
  56. 98deville whole computer lit up
  57. TPS autolearn for 1995
  58. '96 DeVille...New Owner...Am I NUTS??
  59. Turbo Track Times
  60. Anyone with rough starts, loss of power..read this.
  61. G-tech pro times.
  62. That's what I call stopping a leak!
  63. Need Valve Body Torque Secs ASAP Please
  64. 98 deville x grandpa mobile
  65. Northstar Experts Please Stand Up.....
  66. Robert Benham
  67. Bleeding air out of cooling system
  68. I think I blew it up
  69. northstar rough accleration/idle
  70. ALBUNDY - can't PM you
  71. Gm top engine cleaner
  72. transmission interchange
  73. 96 deville N* cats question
  74. 94 SLS I seem to be on a losing streak!
  75. Premium vs. Regular
  76. coolant fans
  77. Overheat Part 3
  78. coolant loss
  79. 94 Eldorado Power Steering Fluid?
  80. Big Serts installation
  81. lifter noise?
  82. Some advice
  83. Overheat, Part 2
  84. 2000 STS MAP sensor voltage high?
  85. FRP Help!! ASAP!!
  86. Overheat!
  87. 1999 Eldorado won't start and left me stranded
  88. Anyone use "regular" plug wires in N*?
  89. Higher Stall Converter...
  90. i think i found a fuel control system.
  91. 94 SLS radiator hydraulic line
  92. K&N Intake...I want one!
  93. ABS wiring diagram
  94. What are the available Northstar aftermarket performance parts?
  95. Northstar Oil Leak
  96. Northstar in the 1997-1999 Deville.. questions.
  97. N* with nitrous.
  98. 5000 mile or wait for oil life trigger?
  99. Hi Flow Cat converter to go with Corsa Exhaust, which one?
  100. MSD coils? I hit 104
  101. eldorado1- throttle body for 94 eldo available?
  102. need IAC, TPS, MAP sensors?
  103. 4.6 caddy vs. olds 4.0
  104. Has anyone here added performance parts to a 94 eldorado
  105. Bad coil packs or what?
  106. northstar battery
  107. 94 eldorado bad starter possibly?
  108. Starter change 94 SLS
  109. What's happening to the messages display?
  110. Day after alternator replace, now I need a new belt...coincidence?
  111. block off EGR
  112. Transmisson monitor??
  113. Water pump leak??
  114. Will machined heads mess up the ECU due to increased compression ?
  115. The Turbonator
  116. 96 STS engine swap
  117. Ok explain this.............
  118. Oil on sparkplugs??
  119. need help 96 deville
  120. North Star Temperature
  121. History Codes ??? & P0420
  122. VSS....how hard is it to change?
  123. Engine is not cranking - starter is fine
  124. Oil Leak
  125. Is head gasket a common problem with sts
  126. Please Help!!!!!!!!!
  127. Im running with no suppliment....
  128. Whirring noise.....you thinks its the alternator?
  129. Wot?
  130. 5W30 vs 10W30, pre 2000 Northstar 84 degree weather
  131. Thermagasket, cylinder head repair goop
  132. Head Gasket Repair - DIY?
  133. 4T80E heartbreak with pictures
  134. N* Replacement
  135. Northstar Motor Mechanic From Dealer
  136. Fuel Pump 95 SLS
  137. Minor value cover (head cover) leaks???Concern???
  138. N* Head Gasket Job, What parts should i BUY
  139. Jasper Engines HEAT TAB
  140. Head Gaskets Again !?!?
  141. 96 deville codes/very sluggish start
  142. n* experts chime in
  143. NorthStar Supercharger!!!
  144. 1997 Deville Coolant Flush
  145. I think i got this Traction Control thing figured out!
  146. Northstar Brainteaser
  147. New Northstar in 2008? Ultra?
  148. Service Engine Light and history codes
  149. Whats code 94?
  150. DIY Replace Coolant for 94 STS
  151. Lower Crankcase Reseal
  152. PC0300 with troubleshoot. Coil Resistance?
  153. '94 Eldorado Coolant change. Help!
  154. Squeaking belt noise - Help!
  155. oil change timing
  156. changed FPR now P0507 code?
  157. need help with water pump.
  158. Fix it or not? Head Gasket.
  159. Future 1996 STS buyer
  160. update on Polyisobutylene
  161. So, I took it to Cottman........
  162. 03 DTS Major Tune Up
  163. Codes, Codes, and more codes....
  164. First WOT on Grandma Owned N*
  165. Tech Manual
  166. What are the performance number of the SLS,DHS
  167. 98 Seville engine mount
  168. N* all OBDII?
  169. EGR Valve Cleaning and Location
  170. How To Replace O2 Sensor Bank 1 Sensor 1
  171. 93 Eldo transaxle
  172. Intake Bolts
  173. Fuel rail/line recall
  174. Saw an interesting Swap today.... (56k take a nap)
  175. Need some help from someone with a 96-99 manual
  176. Not enough WOTs?
  177. another problem solved! N* stutter gone
  178. Coolant Eats Gasket?
  179. Starter Idiocy?
  180. Have you tried Polyisobutylene ??
  181. How to Remove EGR Valve
  182. Granatelli Trans Tuner - Anyone try this?
  183. Granatelli Trans Tuner - Anyone try this?
  184. Performance Survey - New Owner - Seeking Ideas
  185. 94 STS - Throttle Plate Orientation
  186. cruise linkage
  187. 95 STS hi-rpm and auto-acceleration problem
  188. Data on the northstar
  189. Buy a N* with a blown head gasket - Dumb idea?
  190. Weird Idle Issues
  191. 1994 Concourse stuttering
  192. Cooling Fans
  193. Coolant supplement clogged T stat
  194. ghost in the machine
  195. Turbo STS Dyno results
  196. PCM Source
  197. 99 Deville misfire and fuel sensor
  198. Learning about Torque Convertor and solenoid
  199. Casper Electronics TPS Enhancer
  200. What year Nstars fit '99 Deville?
  201. Help:Crankshaft Sensor Replacement
  202. Torque convertor can damage the solenoids?
  203. What will it take to get you to buy a 80mm throttle body?
  204. Is this a "freeze plug"?
  205. Is this a 95 intake?
  206. Weird Hydraulic whine, maybe tranny????
  207. # 8 misfire
  208. where are the plugs on my 03 dhs northstar engine?
  209. Water Leak
  210. 4T80E vs Dexron VI, GM new standard
  211. 200,000 mile mark reality? 1996 STS NStar
  212. It wasnt a hole in the block!!!!!
  213. Just Bought a Granma owned NS w/81K-WOT?
  214. please help!?!?!?!?!
  215. High volt MAP
  216. Rough Idle and Stuttering Acceleration
  217. 94 seville sls oil pan gasket replacement...
  218. 97 headgaskets what else should be done?
  219. Differences in the Northstar engines
  220. PCM info for NorthStar
  221. accessing rear spark plugs
  222. 99 STS Turbo charged video
  223. 1994 Eldorado P083 Code?
  224. Looking for help with Codes
  225. What's this noise....
  226. How do you I.D. an engine?
  227. Expansion tank leaking...
  228. Engine ID
  229. 1994 eldorado fuel pump
  230. unchanged SP wires longevity?
  231. Launch Control for N* ignition
  232. coolant loss
  233. Can I fix my 01 Northstar myself?
  234. Turbo WOT 7psi to REDLINE
  235. 0101 MAF-continues
  236. Turbo Update
  237. changing out o2 sensor on 97 deville
  238. P0404 - Exhaust Gas Recirculation (EGR) Open Position Performance?
  239. deciphering DTC messages into plain English
  240. Cylinder Head Info!
  241. Northstar noise
  242. Best Code Reader/Scanner?
  243. EGR change w/ SS fuel rail- trick maybe
  244. Where is the INPUT SPEED SENSOR?
  245. 97 deville fuel problem
  246. GM coolant additive???
  247. Car wont start
  248. Serpentine belt
  249. no overdrive in my 98 eldo
  250. Really Head Gasket?