: Northstar Engines and System Technical Discussion



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  1. Crank Position Sensor Replace Quick Question...
  2. 98 STS code P0404 (and P0300)
  3. Not Nearly As Hard As I Thought
  4. what to do about SO codes...
  5. overfilled tranny....
  6. OBD1 chip reprogramming?
  7. Hey Check Out What Im Doing....
  8. 95-6 transmission harness
  9. new headbolts
  10. Torque Converter Clutch Stuck...How to Fix??
  11. BS? "aftermarket Mass Air Sensor = improved hp, torque and mileage from your car"
  12. pulling engine, top or bottom???
  13. RANGER: Can't Identify Codes...
  14. 1996 1/8th mile times!
  15. '96 SDV Update...2 Codes...Help??
  16. Need a new alternator......
  17. Cranking but not starting.. fuel pump relay?
  18. EXP ID 83, 84, 140, 25 ??? Any Help?
  19. timesert kit for sale
  20. Factory Specs for Compression??
  21. torque wrench advice
  22. Stripped Oil Pan Bolt Hole
  23. Would you like some cheese and crackers with that Whine?
  24. Ready to rebuild-best source for tserts and bearings
  25. Stability Reduced? wut?
  26. Compression numbers for the North*
  27. Options to repair ONE engine block thread
  28. What ever happened to the supercarger for N*?
  29. Torquing of Rocker????
  30. Minor Problem with my 94 SLS
  31. Chip & Bored T/B ???
  32. Why with the Northstar 4.6?
  33. PCM reflash for 95
  34. Sooooo....
  35. cam torque
  36. Blwoin a little smoke..
  37. casting number ID
  38. DANG - Trouble Codes Question
  39. Need some help..abs troubles?
  40. I saw a smoking Deville
  41. PCM Question II
  42. Air intake and airflow
  43. Trans making noise in park and neutral
  44. water pump replacement
  45. Pcm?
  46. STS Engine Cut-Out
  47. 94 SLS 4.6 showing oil pressure
  48. Performance transmission
  49. Aftermarket air intake...
  50. TCS C1287/C1286 help please
  51. Pics..pics...pics.....pics........
  52. Computer Swap Ok?
  53. MIL's - Anyone tried them yet?
  54. Anyone ever done or heard about doing this?
  55. Stumped (P0307)
  56. pressure control circuit code 076
  57. 94 Eldorado 4.6 starting problem
  58. Anyone have sound clips of their exhaust?
  59. 98deville whole computer lit up
  60. TPS autolearn for 1995
  61. '96 DeVille...New Owner...Am I NUTS??
  62. Turbo Track Times
  63. Anyone with rough starts, loss of power..read this.
  64. G-tech pro times.
  65. That's what I call stopping a leak!
  66. Need Valve Body Torque Secs ASAP Please
  67. 98 deville x grandpa mobile
  68. Northstar Experts Please Stand Up.....
  69. Robert Benham
  70. Bleeding air out of cooling system
  71. I think I blew it up
  72. northstar rough accleration/idle
  73. ALBUNDY - can't PM you
  74. Gm top engine cleaner
  75. transmission interchange
  76. 96 deville N* cats question
  77. 94 SLS I seem to be on a losing streak!
  78. Premium vs. Regular
  79. coolant fans
  80. Overheat Part 3
  81. coolant loss
  82. 94 Eldorado Power Steering Fluid?
  83. Big Serts installation
  84. lifter noise?
  85. Some advice
  86. Overheat, Part 2
  87. 2000 STS MAP sensor voltage high?
  88. FRP Help!! ASAP!!
  89. Overheat!
  90. 1999 Eldorado won't start and left me stranded
  91. Anyone use "regular" plug wires in N*?
  92. Higher Stall Converter...
  93. i think i found a fuel control system.
  94. 94 SLS radiator hydraulic line
  95. K&N Intake...I want one!
  96. ABS wiring diagram
  97. What are the available Northstar aftermarket performance parts?
  98. Northstar Oil Leak
  99. Northstar in the 1997-1999 Deville.. questions.
  100. N* with nitrous.
  101. 5000 mile or wait for oil life trigger?
  102. Hi Flow Cat converter to go with Corsa Exhaust, which one?
  103. MSD coils? I hit 104
  104. eldorado1- throttle body for 94 eldo available?
  105. need IAC, TPS, MAP sensors?
  106. 4.6 caddy vs. olds 4.0
  107. Has anyone here added performance parts to a 94 eldorado
  108. Bad coil packs or what?
  109. northstar battery
  110. 94 eldorado bad starter possibly?
  111. Starter change 94 SLS
  112. What's happening to the messages display?
  113. Day after alternator replace, now I need a new belt...coincidence?
  114. block off EGR
  115. Transmisson monitor??
  116. Water pump leak??
  117. Will machined heads mess up the ECU due to increased compression ?
  118. The Turbonator
  119. 96 STS engine swap
  120. Ok explain this.............
  121. Oil on sparkplugs??
  122. need help 96 deville
  123. North Star Temperature
  124. History Codes ??? & P0420
  125. VSS....how hard is it to change?
  126. Engine is not cranking - starter is fine
  127. Oil Leak
  128. Is head gasket a common problem with sts
  129. Please Help!!!!!!!!!
  130. Im running with no suppliment....
  131. Whirring noise.....you thinks its the alternator?
  132. Wot?
  133. 5W30 vs 10W30, pre 2000 Northstar 84 degree weather
  134. Thermagasket, cylinder head repair goop
  135. Head Gasket Repair - DIY?
  136. 4T80E heartbreak with pictures
  137. N* Replacement
  138. Northstar Motor Mechanic From Dealer
  139. Fuel Pump 95 SLS
  140. Minor value cover (head cover) leaks???Concern???
  141. N* Head Gasket Job, What parts should i BUY
  142. Jasper Engines HEAT TAB
  143. Head Gaskets Again !?!?
  144. 96 deville codes/very sluggish start
  145. n* experts chime in
  146. NorthStar Supercharger!!!
  147. 1997 Deville Coolant Flush
  148. I think i got this Traction Control thing figured out!
  149. Northstar Brainteaser
  150. New Northstar in 2008? Ultra?
  151. Service Engine Light and history codes
  152. Whats code 94?
  153. DIY Replace Coolant for 94 STS
  154. Lower Crankcase Reseal
  155. PC0300 with troubleshoot. Coil Resistance?
  156. '94 Eldorado Coolant change. Help!
  157. Squeaking belt noise - Help!
  158. oil change timing
  159. changed FPR now P0507 code?
  160. need help with water pump.
  161. Fix it or not? Head Gasket.
  162. Future 1996 STS buyer
  163. update on Polyisobutylene
  164. So, I took it to Cottman........
  165. 03 DTS Major Tune Up
  166. Codes, Codes, and more codes....
  167. First WOT on Grandma Owned N*
  168. Tech Manual
  169. What are the performance number of the SLS,DHS
  170. 98 Seville engine mount
  171. N* all OBDII?
  172. EGR Valve Cleaning and Location
  173. How To Replace O2 Sensor Bank 1 Sensor 1
  174. 93 Eldo transaxle
  175. Intake Bolts
  176. Fuel rail/line recall
  177. Saw an interesting Swap today.... (56k take a nap)
  178. Need some help from someone with a 96-99 manual
  179. Not enough WOTs?
  180. another problem solved! N* stutter gone
  181. Coolant Eats Gasket?
  182. Starter Idiocy?
  183. Have you tried Polyisobutylene ??
  184. How to Remove EGR Valve
  185. Granatelli Trans Tuner - Anyone try this?
  186. Granatelli Trans Tuner - Anyone try this?
  187. Performance Survey - New Owner - Seeking Ideas
  188. 94 STS - Throttle Plate Orientation
  189. cruise linkage
  190. 95 STS hi-rpm and auto-acceleration problem
  191. Data on the northstar
  192. Buy a N* with a blown head gasket - Dumb idea?
  193. Weird Idle Issues
  194. 1994 Concourse stuttering
  195. Cooling Fans
  196. Coolant supplement clogged T stat
  197. ghost in the machine
  198. Turbo STS Dyno results
  199. PCM Source
  200. 99 Deville misfire and fuel sensor
  201. Learning about Torque Convertor and solenoid
  202. Casper Electronics TPS Enhancer
  203. What year Nstars fit '99 Deville?
  204. Help:Crankshaft Sensor Replacement
  205. Torque convertor can damage the solenoids?
  206. What will it take to get you to buy a 80mm throttle body?
  207. Is this a "freeze plug"?
  208. Is this a 95 intake?
  209. Weird Hydraulic whine, maybe tranny????
  210. # 8 misfire
  211. where are the plugs on my 03 dhs northstar engine?
  212. Water Leak
  213. 4T80E vs Dexron VI, GM new standard
  214. 200,000 mile mark reality? 1996 STS NStar
  215. It wasnt a hole in the block!!!!!
  216. Just Bought a Granma owned NS w/81K-WOT?
  217. please help!?!?!?!?!
  218. High volt MAP
  219. Rough Idle and Stuttering Acceleration
  220. 94 seville sls oil pan gasket replacement...
  221. 97 headgaskets what else should be done?
  222. Differences in the Northstar engines
  223. PCM info for NorthStar
  224. accessing rear spark plugs
  225. 99 STS Turbo charged video
  226. 1994 Eldorado P083 Code?
  227. Looking for help with Codes
  228. What's this noise....
  229. How do you I.D. an engine?
  230. Expansion tank leaking...
  231. Engine ID
  232. 1994 eldorado fuel pump
  233. unchanged SP wires longevity?
  234. Launch Control for N* ignition
  235. coolant loss
  236. Can I fix my 01 Northstar myself?
  237. Turbo WOT 7psi to REDLINE
  238. 0101 MAF-continues
  239. Turbo Update
  240. changing out o2 sensor on 97 deville
  241. P0404 - Exhaust Gas Recirculation (EGR) Open Position Performance?
  242. deciphering DTC messages into plain English
  243. Cylinder Head Info!
  244. Northstar noise
  245. Best Code Reader/Scanner?
  246. EGR change w/ SS fuel rail- trick maybe
  247. Where is the INPUT SPEED SENSOR?
  248. 97 deville fuel problem
  249. GM coolant additive???
  250. Car wont start