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View Full Version : Northstar Engines and System Technical Discussion



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  1. Link From Consumer Affairs to Dexcool Lawsuit Atty.
  2. Reflash PCM on 96
  3. changing altn
  4. Cam Cover Gasket / o-ring replacement
  5. Need an engine teardown pic...
  6. Cooling system question
  7. N*4.6 vibration problem
  8. Northstar oil pump
  9. P0420 Code
  10. Piston Slap ?
  11. 1996 Eldorado Codes
  12. Jasper Verses OEM
  13. OBD2 computer interface
  14. Cold Start Backfire from 97 N*?
  15. Intake mod
  16. N* with code p041
  17. 97 deville radiator drain
  18. How do I spot a head gasket starting to go?
  19. 1993 1994 Northstar Intake Manifold
  20. Crank Position Sensor
  21. Gas-saving gadgets article
  22. Reliability and longevity of a 97 N* motor?
  23. 93 Northstar Headgasket - Can I do it myself?
  24. '95 Eldorado start-up getting more "difficult"
  25. Removing bad FPR
  26. 98 Northstar Fuel Rail Recall
  27. p056
  28. 2000 Deville TCC PWM replacement
  29. One gear, LIMP MODE? NO CODES
  30. Emmissions Codes
  31. No overdive
  32. 97 deville N* head gasket costs?????
  33. 95 Deville howl's near the belt
  34. Injector
  35. Gurgling Sound/ Trapped Air in Coolant System
  36. 1999 STS - Timesert question
  37. Biggest Problems with the N*'s?
  38. Spark Plug Gap
  39. Extremely Rough Idle... Cracked Intake Manifold?
  40. Emission Codes
  41. Head gasket compressed thickness
  42. Pictures of Turbo Project
  43. fuel filter location?
  44. Pop Off / Backfire Valve Replacement
  45. Glowing red exhaust manifolds
  46. I got porked...Blown N*.
  47. High Oil Consumption *INFO*
  48. Stalls after fill-up
  49. its been a little while but i am back for good!!
  50. Need a Timesert kit
  51. 94 STS hesitates or stumbles
  52. Improper Sparg plug gap, what happens?
  53. STS Tranny trouble
  54. New plugs and wires, now misfire
  55. Really Head Gasket?
  56. no overdrive in my 98 eldo
  57. Serpentine belt
  58. Car wont start
  59. GM coolant additive???
  60. 97 deville fuel problem
  61. Where is the INPUT SPEED SENSOR?
  62. EGR change w/ SS fuel rail- trick maybe
  63. Best Code Reader/Scanner?
  64. Northstar noise
  65. Cylinder Head Info!
  66. deciphering DTC messages into plain English
  67. P0404 - Exhaust Gas Recirculation (EGR) Open Position Performance?
  68. changing out o2 sensor on 97 deville
  69. Turbo Update
  70. 0101 MAF-continues
  71. Turbo WOT 7psi to REDLINE
  72. Can I fix my 01 Northstar myself?
  73. coolant loss
  74. Launch Control for N* ignition
  75. unchanged SP wires longevity?
  76. 1994 eldorado fuel pump
  77. Engine ID
  78. Expansion tank leaking...
  79. How do you I.D. an engine?
  80. What's this noise....
  81. Looking for help with Codes
  82. 1994 Eldorado P083 Code?
  83. 99 STS Turbo charged video
  84. accessing rear spark plugs
  85. PCM info for NorthStar
  86. Differences in the Northstar engines
  87. 97 headgaskets what else should be done?
  88. 94 seville sls oil pan gasket replacement...
  89. Rough Idle and Stuttering Acceleration
  90. High volt MAP
  91. please help!?!?!?!?!
  92. Just Bought a Granma owned NS w/81K-WOT?
  93. It wasnt a hole in the block!!!!!
  94. 200,000 mile mark reality? 1996 STS NStar
  95. 4T80E vs Dexron VI, GM new standard
  96. Water Leak
  97. where are the plugs on my 03 dhs northstar engine?
  98. # 8 misfire
  99. Weird Hydraulic whine, maybe tranny????
  100. Is this a 95 intake?
  101. Is this a "freeze plug"?
  102. What will it take to get you to buy a 80mm throttle body?
  103. Torque convertor can damage the solenoids?
  104. Help:Crankshaft Sensor Replacement
  105. What year Nstars fit '99 Deville?
  106. Casper Electronics TPS Enhancer
  107. Learning about Torque Convertor and solenoid
  108. 99 Deville misfire and fuel sensor
  109. PCM Source
  110. Turbo STS Dyno results
  111. ghost in the machine
  112. Coolant supplement clogged T stat
  113. Cooling Fans
  114. 1994 Concourse stuttering
  115. Weird Idle Issues
  116. Buy a N* with a blown head gasket - Dumb idea?
  117. Data on the northstar
  118. 95 STS hi-rpm and auto-acceleration problem
  119. cruise linkage
  120. 94 STS - Throttle Plate Orientation
  121. Performance Survey - New Owner - Seeking Ideas
  122. Granatelli Trans Tuner - Anyone try this?
  123. Granatelli Trans Tuner - Anyone try this?
  124. How to Remove EGR Valve
  125. Have you tried Polyisobutylene ??
  126. Starter Idiocy?
  127. Coolant Eats Gasket?
  128. another problem solved! N* stutter gone
  129. Not enough WOTs?
  130. Need some help from someone with a 96-99 manual
  131. Saw an interesting Swap today.... (56k take a nap)
  132. Fuel rail/line recall
  133. Intake Bolts
  134. 93 Eldo transaxle
  135. How To Replace O2 Sensor Bank 1 Sensor 1
  136. EGR Valve Cleaning and Location
  137. N* all OBDII?
  138. 98 Seville engine mount
  139. What are the performance number of the SLS,DHS
  140. Tech Manual
  141. First WOT on Grandma Owned N*
  142. Codes, Codes, and more codes....
  143. 03 DTS Major Tune Up
  144. So, I took it to Cottman........
  145. update on Polyisobutylene
  146. Future 1996 STS buyer
  147. Fix it or not? Head Gasket.
  148. need help with water pump.
  149. changed FPR now P0507 code?
  150. oil change timing
  151. Squeaking belt noise - Help!
  152. '94 Eldorado Coolant change. Help!
  153. PC0300 with troubleshoot. Coil Resistance?
  154. Lower Crankcase Reseal
  155. DIY Replace Coolant for 94 STS
  156. Whats code 94?
  157. Service Engine Light and history codes
  158. New Northstar in 2008? Ultra?
  159. Northstar Brainteaser
  160. I think i got this Traction Control thing figured out!
  161. 1997 Deville Coolant Flush
  162. NorthStar Supercharger!!!
  163. n* experts chime in
  164. 96 deville codes/very sluggish start
  165. Head Gaskets Again !?!?
  166. Jasper Engines HEAT TAB
  167. N* Head Gasket Job, What parts should i BUY
  168. Minor value cover (head cover) leaks???Concern???
  169. Fuel Pump 95 SLS
  170. Northstar Motor Mechanic From Dealer
  171. N* Replacement
  172. 4T80E heartbreak with pictures
  173. Head Gasket Repair - DIY?
  174. Thermagasket, cylinder head repair goop
  175. 5W30 vs 10W30, pre 2000 Northstar 84 degree weather
  176. Wot?
  177. Whirring noise.....you thinks its the alternator?
  178. Im running with no suppliment....
  179. Please Help!!!!!!!!!
  180. Is head gasket a common problem with sts
  181. Oil Leak
  182. Engine is not cranking - starter is fine
  183. VSS....how hard is it to change?
  184. History Codes ??? & P0420
  185. North Star Temperature
  186. need help 96 deville
  187. Oil on sparkplugs??
  188. Ok explain this.............
  189. 96 STS engine swap
  190. The Turbonator
  191. Will machined heads mess up the ECU due to increased compression ?
  192. Water pump leak??
  193. Transmisson monitor??
  194. block off EGR
  195. Day after alternator replace, now I need a new belt...coincidence?
  196. What's happening to the messages display?
  197. Starter change 94 SLS
  198. 94 eldorado bad starter possibly?
  199. northstar battery
  200. Bad coil packs or what?
  201. Has anyone here added performance parts to a 94 eldorado
  202. 4.6 caddy vs. olds 4.0
  203. need IAC, TPS, MAP sensors?
  204. eldorado1- throttle body for 94 eldo available?
  205. MSD coils? I hit 104
  206. Hi Flow Cat converter to go with Corsa Exhaust, which one?
  207. 5000 mile or wait for oil life trigger?
  208. N* with nitrous.
  209. Northstar in the 1997-1999 Deville.. questions.
  210. Northstar Oil Leak
  211. What are the available Northstar aftermarket performance parts?
  212. ABS wiring diagram
  213. K&N Intake...I want one!
  214. 94 SLS radiator hydraulic line
  215. i think i found a fuel control system.
  216. Higher Stall Converter...
  217. Anyone use "regular" plug wires in N*?
  218. 1999 Eldorado won't start and left me stranded
  219. Overheat!
  220. FRP Help!! ASAP!!
  221. 2000 STS MAP sensor voltage high?
  222. Overheat, Part 2
  223. Some advice
  224. lifter noise?
  225. Big Serts installation
  226. 94 Eldorado Power Steering Fluid?
  227. coolant loss
  228. Overheat Part 3
  229. coolant fans
  230. Premium vs. Regular
  231. 94 SLS I seem to be on a losing streak!
  232. 96 deville N* cats question
  233. transmission interchange
  234. Gm top engine cleaner
  235. ALBUNDY - can't PM you
  236. northstar rough accleration/idle
  237. I think I blew it up
  238. Bleeding air out of cooling system
  239. Robert Benham
  240. Northstar Experts Please Stand Up.....
  241. 98 deville x grandpa mobile
  242. Need Valve Body Torque Secs ASAP Please
  243. That's what I call stopping a leak!
  244. G-tech pro times.
  245. Anyone with rough starts, loss of power..read this.
  246. Turbo Track Times
  247. '96 DeVille...New Owner...Am I NUTS??
  248. TPS autolearn for 1995
  249. 98deville whole computer lit up
  250. Anyone have sound clips of their exhaust?