: Northstar Engines and System Technical Discussion



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  1. Northstar performance parts
  2. Procedure for Coolant flush
  3. Dynomax - Long life?
  4. Running Functional Test on my 94 Deville Concours.
  5. 94 northstar swap
  6. Airbox Computer?
  7. ICM Replacement
  8. Cranks, but won't start
  9. 96 deville antifreeze coming out exhaust
  10. Its Getting Hot Inside
  11. STS fuel Injection problem NEED HELP
  12. I think I'm missing a few ponies!
  13. 99 Deville Hesitating???
  14. Eliminating the exhaust crossover??
  15. Po138???
  16. Front Valve Cover Removal
  17. You guys read this stuff????
  18. camshaft swap "9" motor to "Y" motor
  19. What is TSB 99-06-04-053?
  20. 94 cadillac concours
  21. Can anyone tell me what these compression numbers mean?
  22. H Gasket Job Ballpark Price Needed for Parts
  23. Heater core replacement, help!
  24. Ah, darn... My 94 Eldorado Is having problems.
  25. Anyone know a reputable transmission shop in Orlando?
  26. Lifter?valve noise
  27. 93 Northstar dies out at idle
  28. Time Sert Kit Needed
  29. Engine Replacement
  30. Broken Head Bolt (small type)
  31. P0741 - TCC System Stuck Off...Now What??
  32. homemade locating dowels - a possibility?
  33. Rear Valve Cover Leak!!
  34. Going from a 4.0 to a 4.6
  35. how many miles on your N*?
  36. Crank Position Sensor Replace Quick Question...
  37. 98 STS code P0404 (and P0300)
  38. Not Nearly As Hard As I Thought
  39. what to do about SO codes...
  40. overfilled tranny....
  41. OBD1 chip reprogramming?
  42. Hey Check Out What Im Doing....
  43. 95-6 transmission harness
  44. new headbolts
  45. Torque Converter Clutch Stuck...How to Fix??
  46. BS? "aftermarket Mass Air Sensor = improved hp, torque and mileage from your car"
  47. pulling engine, top or bottom???
  48. RANGER: Can't Identify Codes...
  49. 1996 1/8th mile times!
  50. '96 SDV Update...2 Codes...Help??
  51. Need a new alternator......
  52. Cranking but not starting.. fuel pump relay?
  53. EXP ID 83, 84, 140, 25 ??? Any Help?
  54. timesert kit for sale
  55. Factory Specs for Compression??
  56. torque wrench advice
  57. Stripped Oil Pan Bolt Hole
  58. Would you like some cheese and crackers with that Whine?
  59. Ready to rebuild-best source for tserts and bearings
  60. Stability Reduced? wut?
  61. Compression numbers for the North*
  62. Options to repair ONE engine block thread
  63. What ever happened to the supercarger for N*?
  64. Torquing of Rocker????
  65. Minor Problem with my 94 SLS
  66. Chip & Bored T/B ???
  67. Why with the Northstar 4.6?
  68. PCM reflash for 95
  69. Sooooo....
  70. cam torque
  71. Blwoin a little smoke..
  72. casting number ID
  73. DANG - Trouble Codes Question
  74. Need some help..abs troubles?
  75. I saw a smoking Deville
  76. PCM Question II
  77. Air intake and airflow
  78. Trans making noise in park and neutral
  79. water pump replacement
  80. Pcm?
  81. STS Engine Cut-Out
  82. 94 SLS 4.6 showing oil pressure
  83. Performance transmission
  84. Aftermarket air intake...
  85. TCS C1287/C1286 help please
  86. Pics..pics...pics.....pics........
  87. Computer Swap Ok?
  88. MIL's - Anyone tried them yet?
  89. Anyone ever done or heard about doing this?
  90. Stumped (P0307)
  91. pressure control circuit code 076
  92. 94 Eldorado 4.6 starting problem
  93. Anyone have sound clips of their exhaust?
  94. 98deville whole computer lit up
  95. TPS autolearn for 1995
  96. '96 DeVille...New Owner...Am I NUTS??
  97. Turbo Track Times
  98. Anyone with rough starts, loss of power..read this.
  99. G-tech pro times.
  100. That's what I call stopping a leak!
  101. Need Valve Body Torque Secs ASAP Please
  102. 98 deville x grandpa mobile
  103. Northstar Experts Please Stand Up.....
  104. Robert Benham
  105. Bleeding air out of cooling system
  106. I think I blew it up
  107. northstar rough accleration/idle
  108. ALBUNDY - can't PM you
  109. Gm top engine cleaner
  110. transmission interchange
  111. 96 deville N* cats question
  112. 94 SLS I seem to be on a losing streak!
  113. Premium vs. Regular
  114. coolant fans
  115. Overheat Part 3
  116. coolant loss
  117. 94 Eldorado Power Steering Fluid?
  118. Big Serts installation
  119. lifter noise?
  120. Some advice
  121. Overheat, Part 2
  122. 2000 STS MAP sensor voltage high?
  123. FRP Help!! ASAP!!
  124. Overheat!
  125. 1999 Eldorado won't start and left me stranded
  126. Anyone use "regular" plug wires in N*?
  127. Higher Stall Converter...
  128. i think i found a fuel control system.
  129. 94 SLS radiator hydraulic line
  130. K&N Intake...I want one!
  131. ABS wiring diagram
  132. What are the available Northstar aftermarket performance parts?
  133. Northstar Oil Leak
  134. Northstar in the 1997-1999 Deville.. questions.
  135. N* with nitrous.
  136. 5000 mile or wait for oil life trigger?
  137. Hi Flow Cat converter to go with Corsa Exhaust, which one?
  138. MSD coils? I hit 104
  139. eldorado1- throttle body for 94 eldo available?
  140. need IAC, TPS, MAP sensors?
  141. 4.6 caddy vs. olds 4.0
  142. Has anyone here added performance parts to a 94 eldorado
  143. Bad coil packs or what?
  144. northstar battery
  145. 94 eldorado bad starter possibly?
  146. Starter change 94 SLS
  147. What's happening to the messages display?
  148. Day after alternator replace, now I need a new belt...coincidence?
  149. block off EGR
  150. Transmisson monitor??
  151. Water pump leak??
  152. Will machined heads mess up the ECU due to increased compression ?
  153. The Turbonator
  154. 96 STS engine swap
  155. Ok explain this.............
  156. Oil on sparkplugs??
  157. need help 96 deville
  158. North Star Temperature
  159. History Codes ??? & P0420
  160. VSS....how hard is it to change?
  161. Engine is not cranking - starter is fine
  162. Oil Leak
  163. Is head gasket a common problem with sts
  164. Please Help!!!!!!!!!
  165. Im running with no suppliment....
  166. Whirring noise.....you thinks its the alternator?
  167. Wot?
  168. 5W30 vs 10W30, pre 2000 Northstar 84 degree weather
  169. Thermagasket, cylinder head repair goop
  170. Head Gasket Repair - DIY?
  171. 4T80E heartbreak with pictures
  172. N* Replacement
  173. Northstar Motor Mechanic From Dealer
  174. Fuel Pump 95 SLS
  175. Minor value cover (head cover) leaks???Concern???
  176. N* Head Gasket Job, What parts should i BUY
  177. Jasper Engines HEAT TAB
  178. Head Gaskets Again !?!?
  179. 96 deville codes/very sluggish start
  180. n* experts chime in
  181. NorthStar Supercharger!!!
  182. 1997 Deville Coolant Flush
  183. I think i got this Traction Control thing figured out!
  184. Northstar Brainteaser
  185. New Northstar in 2008? Ultra?
  186. Service Engine Light and history codes
  187. Whats code 94?
  188. DIY Replace Coolant for 94 STS
  189. Lower Crankcase Reseal
  190. PC0300 with troubleshoot. Coil Resistance?
  191. '94 Eldorado Coolant change. Help!
  192. Squeaking belt noise - Help!
  193. oil change timing
  194. changed FPR now P0507 code?
  195. need help with water pump.
  196. Fix it or not? Head Gasket.
  197. Future 1996 STS buyer
  198. update on Polyisobutylene
  199. So, I took it to Cottman........
  200. 03 DTS Major Tune Up
  201. Codes, Codes, and more codes....
  202. First WOT on Grandma Owned N*
  203. Tech Manual
  204. What are the performance number of the SLS,DHS
  205. 98 Seville engine mount
  206. N* all OBDII?
  207. EGR Valve Cleaning and Location
  208. How To Replace O2 Sensor Bank 1 Sensor 1
  209. 93 Eldo transaxle
  210. Intake Bolts
  211. Fuel rail/line recall
  212. Saw an interesting Swap today.... (56k take a nap)
  213. Need some help from someone with a 96-99 manual
  214. Not enough WOTs?
  215. another problem solved! N* stutter gone
  216. Coolant Eats Gasket?
  217. Starter Idiocy?
  218. Have you tried Polyisobutylene ??
  219. How to Remove EGR Valve
  220. Granatelli Trans Tuner - Anyone try this?
  221. Granatelli Trans Tuner - Anyone try this?
  222. Performance Survey - New Owner - Seeking Ideas
  223. 94 STS - Throttle Plate Orientation
  224. cruise linkage
  225. 95 STS hi-rpm and auto-acceleration problem
  226. Data on the northstar
  227. Buy a N* with a blown head gasket - Dumb idea?
  228. Weird Idle Issues
  229. 1994 Concourse stuttering
  230. Cooling Fans
  231. Coolant supplement clogged T stat
  232. ghost in the machine
  233. Turbo STS Dyno results
  234. PCM Source
  235. 99 Deville misfire and fuel sensor
  236. Learning about Torque Convertor and solenoid
  237. Casper Electronics TPS Enhancer
  238. What year Nstars fit '99 Deville?
  239. Help:Crankshaft Sensor Replacement
  240. Torque convertor can damage the solenoids?
  241. What will it take to get you to buy a 80mm throttle body?
  242. Is this a "freeze plug"?
  243. Is this a 95 intake?
  244. Weird Hydraulic whine, maybe tranny????
  245. # 8 misfire
  246. where are the plugs on my 03 dhs northstar engine?
  247. Water Leak
  248. 4T80E vs Dexron VI, GM new standard
  249. 200,000 mile mark reality? 1996 STS NStar
  250. It wasnt a hole in the block!!!!!