: Northstar Engines and System Technical Discussion



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  1. STS Engine Cut-Out
  2. 94 SLS 4.6 showing oil pressure
  3. Performance transmission
  4. Aftermarket air intake...
  5. TCS C1287/C1286 help please
  6. Pics..pics...pics.....pics........
  7. Computer Swap Ok?
  8. MIL's - Anyone tried them yet?
  9. Anyone ever done or heard about doing this?
  10. Stumped (P0307)
  11. pressure control circuit code 076
  12. 94 Eldorado 4.6 starting problem
  13. Anyone have sound clips of their exhaust?
  14. 98deville whole computer lit up
  15. TPS autolearn for 1995
  16. '96 DeVille...New Owner...Am I NUTS??
  17. Turbo Track Times
  18. Anyone with rough starts, loss of power..read this.
  19. G-tech pro times.
  20. That's what I call stopping a leak!
  21. Need Valve Body Torque Secs ASAP Please
  22. 98 deville x grandpa mobile
  23. Northstar Experts Please Stand Up.....
  24. Robert Benham
  25. Bleeding air out of cooling system
  26. I think I blew it up
  27. northstar rough accleration/idle
  28. ALBUNDY - can't PM you
  29. Gm top engine cleaner
  30. transmission interchange
  31. 96 deville N* cats question
  32. 94 SLS I seem to be on a losing streak!
  33. Premium vs. Regular
  34. coolant fans
  35. Overheat Part 3
  36. coolant loss
  37. 94 Eldorado Power Steering Fluid?
  38. Big Serts installation
  39. lifter noise?
  40. Some advice
  41. Overheat, Part 2
  42. 2000 STS MAP sensor voltage high?
  43. FRP Help!! ASAP!!
  44. Overheat!
  45. 1999 Eldorado won't start and left me stranded
  46. Anyone use "regular" plug wires in N*?
  47. Higher Stall Converter...
  48. i think i found a fuel control system.
  49. 94 SLS radiator hydraulic line
  50. K&N Intake...I want one!
  51. ABS wiring diagram
  52. What are the available Northstar aftermarket performance parts?
  53. Northstar Oil Leak
  54. Northstar in the 1997-1999 Deville.. questions.
  55. N* with nitrous.
  56. 5000 mile or wait for oil life trigger?
  57. Hi Flow Cat converter to go with Corsa Exhaust, which one?
  58. MSD coils? I hit 104
  59. eldorado1- throttle body for 94 eldo available?
  60. need IAC, TPS, MAP sensors?
  61. 4.6 caddy vs. olds 4.0
  62. Has anyone here added performance parts to a 94 eldorado
  63. Bad coil packs or what?
  64. northstar battery
  65. 94 eldorado bad starter possibly?
  66. Starter change 94 SLS
  67. What's happening to the messages display?
  68. Day after alternator replace, now I need a new belt...coincidence?
  69. block off EGR
  70. Transmisson monitor??
  71. Water pump leak??
  72. Will machined heads mess up the ECU due to increased compression ?
  73. The Turbonator
  74. 96 STS engine swap
  75. Ok explain this.............
  76. Oil on sparkplugs??
  77. need help 96 deville
  78. North Star Temperature
  79. History Codes ??? & P0420
  80. VSS....how hard is it to change?
  81. Engine is not cranking - starter is fine
  82. Oil Leak
  83. Is head gasket a common problem with sts
  84. Please Help!!!!!!!!!
  85. Im running with no suppliment....
  86. Whirring noise.....you thinks its the alternator?
  87. Wot?
  88. 5W30 vs 10W30, pre 2000 Northstar 84 degree weather
  89. Thermagasket, cylinder head repair goop
  90. Head Gasket Repair - DIY?
  91. 4T80E heartbreak with pictures
  92. N* Replacement
  93. Northstar Motor Mechanic From Dealer
  94. Fuel Pump 95 SLS
  95. Minor value cover (head cover) leaks???Concern???
  96. N* Head Gasket Job, What parts should i BUY
  97. Jasper Engines HEAT TAB
  98. Head Gaskets Again !?!?
  99. 96 deville codes/very sluggish start
  100. n* experts chime in
  101. NorthStar Supercharger!!!
  102. 1997 Deville Coolant Flush
  103. I think i got this Traction Control thing figured out!
  104. Northstar Brainteaser
  105. New Northstar in 2008? Ultra?
  106. Service Engine Light and history codes
  107. Whats code 94?
  108. DIY Replace Coolant for 94 STS
  109. Lower Crankcase Reseal
  110. PC0300 with troubleshoot. Coil Resistance?
  111. '94 Eldorado Coolant change. Help!
  112. Squeaking belt noise - Help!
  113. oil change timing
  114. changed FPR now P0507 code?
  115. need help with water pump.
  116. Fix it or not? Head Gasket.
  117. Future 1996 STS buyer
  118. update on Polyisobutylene
  119. So, I took it to Cottman........
  120. 03 DTS Major Tune Up
  121. Codes, Codes, and more codes....
  122. First WOT on Grandma Owned N*
  123. Tech Manual
  124. What are the performance number of the SLS,DHS
  125. 98 Seville engine mount
  126. N* all OBDII?
  127. EGR Valve Cleaning and Location
  128. How To Replace O2 Sensor Bank 1 Sensor 1
  129. 93 Eldo transaxle
  130. Intake Bolts
  131. Fuel rail/line recall
  132. Saw an interesting Swap today.... (56k take a nap)
  133. Need some help from someone with a 96-99 manual
  134. Not enough WOTs?
  135. another problem solved! N* stutter gone
  136. Coolant Eats Gasket?
  137. Starter Idiocy?
  138. Have you tried Polyisobutylene ??
  139. How to Remove EGR Valve
  140. Granatelli Trans Tuner - Anyone try this?
  141. Granatelli Trans Tuner - Anyone try this?
  142. Performance Survey - New Owner - Seeking Ideas
  143. 94 STS - Throttle Plate Orientation
  144. cruise linkage
  145. 95 STS hi-rpm and auto-acceleration problem
  146. Data on the northstar
  147. Buy a N* with a blown head gasket - Dumb idea?
  148. Weird Idle Issues
  149. 1994 Concourse stuttering
  150. Cooling Fans
  151. Coolant supplement clogged T stat
  152. ghost in the machine
  153. Turbo STS Dyno results
  154. PCM Source
  155. 99 Deville misfire and fuel sensor
  156. Learning about Torque Convertor and solenoid
  157. Casper Electronics TPS Enhancer
  158. What year Nstars fit '99 Deville?
  159. Help:Crankshaft Sensor Replacement
  160. Torque convertor can damage the solenoids?
  161. What will it take to get you to buy a 80mm throttle body?
  162. Is this a "freeze plug"?
  163. Is this a 95 intake?
  164. Weird Hydraulic whine, maybe tranny????
  165. # 8 misfire
  166. where are the plugs on my 03 dhs northstar engine?
  167. Water Leak
  168. 4T80E vs Dexron VI, GM new standard
  169. 200,000 mile mark reality? 1996 STS NStar
  170. It wasnt a hole in the block!!!!!
  171. Just Bought a Granma owned NS w/81K-WOT?
  172. please help!?!?!?!?!
  173. High volt MAP
  174. Rough Idle and Stuttering Acceleration
  175. 94 seville sls oil pan gasket replacement...
  176. 97 headgaskets what else should be done?
  177. Differences in the Northstar engines
  178. PCM info for NorthStar
  179. accessing rear spark plugs
  180. 99 STS Turbo charged video
  181. 1994 Eldorado P083 Code?
  182. Looking for help with Codes
  183. What's this noise....
  184. How do you I.D. an engine?
  185. Expansion tank leaking...
  186. Engine ID
  187. 1994 eldorado fuel pump
  188. unchanged SP wires longevity?
  189. Launch Control for N* ignition
  190. coolant loss
  191. Can I fix my 01 Northstar myself?
  192. Turbo WOT 7psi to REDLINE
  193. 0101 MAF-continues
  194. Turbo Update
  195. changing out o2 sensor on 97 deville
  196. P0404 - Exhaust Gas Recirculation (EGR) Open Position Performance?
  197. deciphering DTC messages into plain English
  198. Cylinder Head Info!
  199. Northstar noise
  200. Best Code Reader/Scanner?
  201. EGR change w/ SS fuel rail- trick maybe
  202. Where is the INPUT SPEED SENSOR?
  203. 97 deville fuel problem
  204. GM coolant additive???
  205. Car wont start
  206. Serpentine belt
  207. no overdrive in my 98 eldo
  208. Really Head Gasket?
  209. New plugs and wires, now misfire
  210. STS Tranny trouble
  211. Improper Sparg plug gap, what happens?
  212. 94 STS hesitates or stumbles
  213. Need a Timesert kit
  214. its been a little while but i am back for good!!
  215. Stalls after fill-up
  216. High Oil Consumption *INFO*
  217. I got porked...Blown N*.
  218. Glowing red exhaust manifolds
  219. Pop Off / Backfire Valve Replacement
  220. fuel filter location?
  221. Pictures of Turbo Project
  222. Head gasket compressed thickness
  223. Emission Codes
  224. Extremely Rough Idle... Cracked Intake Manifold?
  225. Spark Plug Gap
  226. Biggest Problems with the N*'s?
  227. 1999 STS - Timesert question
  228. Gurgling Sound/ Trapped Air in Coolant System
  229. Injector
  230. 95 Deville howl's near the belt
  231. 97 deville N* head gasket costs?????
  232. No overdive
  233. Emmissions Codes
  234. One gear, LIMP MODE? NO CODES
  235. 2000 Deville TCC PWM replacement
  236. p056
  237. 98 Northstar Fuel Rail Recall
  238. Removing bad FPR
  239. '95 Eldorado start-up getting more "difficult"
  240. 93 Northstar Headgasket - Can I do it myself?
  241. Reliability and longevity of a 97 N* motor?
  242. Gas-saving gadgets article
  243. Crank Position Sensor
  244. 1993 1994 Northstar Intake Manifold
  245. How do I spot a head gasket starting to go?
  246. 97 deville radiator drain
  247. N* with code p041
  248. Intake mod
  249. Cold Start Backfire from 97 N*?
  250. OBD2 computer interface