: Northstar Engines and System Technical Discussion



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