: Northstar Engines and System Technical Discussion



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  1. Hi Flow Cat converter to go with Corsa Exhaust, which one?
  2. MSD coils? I hit 104
  3. eldorado1- throttle body for 94 eldo available?
  4. need IAC, TPS, MAP sensors?
  5. 4.6 caddy vs. olds 4.0
  6. Has anyone here added performance parts to a 94 eldorado
  7. Bad coil packs or what?
  8. northstar battery
  9. 94 eldorado bad starter possibly?
  10. Starter change 94 SLS
  11. What's happening to the messages display?
  12. Day after alternator replace, now I need a new belt...coincidence?
  13. block off EGR
  14. Transmisson monitor??
  15. Water pump leak??
  16. Will machined heads mess up the ECU due to increased compression ?
  17. The Turbonator
  18. 96 STS engine swap
  19. Ok explain this.............
  20. Oil on sparkplugs??
  21. need help 96 deville
  22. North Star Temperature
  23. History Codes ??? & P0420
  24. VSS....how hard is it to change?
  25. Engine is not cranking - starter is fine
  26. Oil Leak
  27. Is head gasket a common problem with sts
  28. Please Help!!!!!!!!!
  29. Im running with no suppliment....
  30. Whirring noise.....you thinks its the alternator?
  31. Wot?
  32. 5W30 vs 10W30, pre 2000 Northstar 84 degree weather
  33. Thermagasket, cylinder head repair goop
  34. Head Gasket Repair - DIY?
  35. 4T80E heartbreak with pictures
  36. N* Replacement
  37. Northstar Motor Mechanic From Dealer
  38. Fuel Pump 95 SLS
  39. Minor value cover (head cover) leaks???Concern???
  40. N* Head Gasket Job, What parts should i BUY
  41. Jasper Engines HEAT TAB
  42. Head Gaskets Again !?!?
  43. 96 deville codes/very sluggish start
  44. n* experts chime in
  45. NorthStar Supercharger!!!
  46. 1997 Deville Coolant Flush
  47. I think i got this Traction Control thing figured out!
  48. Northstar Brainteaser
  49. New Northstar in 2008? Ultra?
  50. Service Engine Light and history codes
  51. Whats code 94?
  52. DIY Replace Coolant for 94 STS
  53. Lower Crankcase Reseal
  54. PC0300 with troubleshoot. Coil Resistance?
  55. '94 Eldorado Coolant change. Help!
  56. Squeaking belt noise - Help!
  57. oil change timing
  58. changed FPR now P0507 code?
  59. need help with water pump.
  60. Fix it or not? Head Gasket.
  61. Future 1996 STS buyer
  62. update on Polyisobutylene
  63. So, I took it to Cottman........
  64. 03 DTS Major Tune Up
  65. Codes, Codes, and more codes....
  66. First WOT on Grandma Owned N*
  67. Tech Manual
  68. What are the performance number of the SLS,DHS
  69. 98 Seville engine mount
  70. N* all OBDII?
  71. EGR Valve Cleaning and Location
  72. How To Replace O2 Sensor Bank 1 Sensor 1
  73. 93 Eldo transaxle
  74. Intake Bolts
  75. Fuel rail/line recall
  76. Saw an interesting Swap today.... (56k take a nap)
  77. Need some help from someone with a 96-99 manual
  78. Not enough WOTs?
  79. another problem solved! N* stutter gone
  80. Coolant Eats Gasket?
  81. Starter Idiocy?
  82. Have you tried Polyisobutylene ??
  83. How to Remove EGR Valve
  84. Granatelli Trans Tuner - Anyone try this?
  85. Granatelli Trans Tuner - Anyone try this?
  86. Performance Survey - New Owner - Seeking Ideas
  87. 94 STS - Throttle Plate Orientation
  88. cruise linkage
  89. 95 STS hi-rpm and auto-acceleration problem
  90. Data on the northstar
  91. Buy a N* with a blown head gasket - Dumb idea?
  92. Weird Idle Issues
  93. 1994 Concourse stuttering
  94. Cooling Fans
  95. Coolant supplement clogged T stat
  96. ghost in the machine
  97. Turbo STS Dyno results
  98. PCM Source
  99. 99 Deville misfire and fuel sensor
  100. Learning about Torque Convertor and solenoid
  101. Casper Electronics TPS Enhancer
  102. What year Nstars fit '99 Deville?
  103. Help:Crankshaft Sensor Replacement
  104. Torque convertor can damage the solenoids?
  105. What will it take to get you to buy a 80mm throttle body?
  106. Is this a "freeze plug"?
  107. Is this a 95 intake?
  108. Weird Hydraulic whine, maybe tranny????
  109. # 8 misfire
  110. where are the plugs on my 03 dhs northstar engine?
  111. Water Leak
  112. 4T80E vs Dexron VI, GM new standard
  113. 200,000 mile mark reality? 1996 STS NStar
  114. It wasnt a hole in the block!!!!!
  115. Just Bought a Granma owned NS w/81K-WOT?
  116. please help!?!?!?!?!
  117. High volt MAP
  118. Rough Idle and Stuttering Acceleration
  119. 94 seville sls oil pan gasket replacement...
  120. 97 headgaskets what else should be done?
  121. Differences in the Northstar engines
  122. PCM info for NorthStar
  123. accessing rear spark plugs
  124. 99 STS Turbo charged video
  125. 1994 Eldorado P083 Code?
  126. Looking for help with Codes
  127. What's this noise....
  128. How do you I.D. an engine?
  129. Expansion tank leaking...
  130. Engine ID
  131. 1994 eldorado fuel pump
  132. unchanged SP wires longevity?
  133. Launch Control for N* ignition
  134. coolant loss
  135. Can I fix my 01 Northstar myself?
  136. Turbo WOT 7psi to REDLINE
  137. 0101 MAF-continues
  138. Turbo Update
  139. changing out o2 sensor on 97 deville
  140. P0404 - Exhaust Gas Recirculation (EGR) Open Position Performance?
  141. deciphering DTC messages into plain English
  142. Cylinder Head Info!
  143. Northstar noise
  144. Best Code Reader/Scanner?
  145. EGR change w/ SS fuel rail- trick maybe
  146. Where is the INPUT SPEED SENSOR?
  147. 97 deville fuel problem
  148. GM coolant additive???
  149. Car wont start
  150. Serpentine belt
  151. no overdrive in my 98 eldo
  152. Really Head Gasket?
  153. New plugs and wires, now misfire
  154. STS Tranny trouble
  155. Improper Sparg plug gap, what happens?
  156. 94 STS hesitates or stumbles
  157. Need a Timesert kit
  158. its been a little while but i am back for good!!
  159. Stalls after fill-up
  160. High Oil Consumption *INFO*
  161. I got porked...Blown N*.
  162. Glowing red exhaust manifolds
  163. Pop Off / Backfire Valve Replacement
  164. fuel filter location?
  165. Pictures of Turbo Project
  166. Head gasket compressed thickness
  167. Emission Codes
  168. Extremely Rough Idle... Cracked Intake Manifold?
  169. Spark Plug Gap
  170. Biggest Problems with the N*'s?
  171. 1999 STS - Timesert question
  172. Gurgling Sound/ Trapped Air in Coolant System
  173. Injector
  174. 95 Deville howl's near the belt
  175. 97 deville N* head gasket costs?????
  176. No overdive
  177. Emmissions Codes
  178. One gear, LIMP MODE? NO CODES
  179. 2000 Deville TCC PWM replacement
  180. p056
  181. 98 Northstar Fuel Rail Recall
  182. Removing bad FPR
  183. '95 Eldorado start-up getting more "difficult"
  184. 93 Northstar Headgasket - Can I do it myself?
  185. Reliability and longevity of a 97 N* motor?
  186. Gas-saving gadgets article
  187. Crank Position Sensor
  188. 1993 1994 Northstar Intake Manifold
  189. How do I spot a head gasket starting to go?
  190. 97 deville radiator drain
  191. N* with code p041
  192. Intake mod
  193. Cold Start Backfire from 97 N*?
  194. OBD2 computer interface
  195. Jasper Verses OEM
  196. 1996 Eldorado Codes
  197. Piston Slap ?
  198. P0420 Code
  199. Northstar oil pump
  200. N*4.6 vibration problem
  201. Cooling system question
  202. Need an engine teardown pic...
  203. Cam Cover Gasket / o-ring replacement
  204. changing altn
  205. Reflash PCM on 96
  206. Link From Consumer Affairs to Dexcool Lawsuit Atty.
  207. Timesert Kit Needed Asap!!!
  208. Failed Emissions Test- But No Codes
  209. fpr fpr
  210. 1999 Northstar with blown head gasket
  211. Water pump??
  212. plugs and wires
  213. Changed TPS on 95 STS d/t P020, now MIL & P080
  214. throttle body cleaning was the answer
  215. Now having trouble in a different way
  216. 200 Deville occasionally won't Idle when starting warm
  217. P1406 Code? EGR?
  218. idle relearn and isc adjust
  219. 1993 Fuel Psi regulator
  220. Cracked Engine Block in 2001 DeVille
  221. 93 -99 N* vs 2000 - 2004, which is better
  222. motor mount...and more
  223. 97 deville leakin trans fluid
  224. MAF replacement
  225. too hot and too cold
  226. Does anybody here have full access to TSB info at alldata?
  227. Overheat SOLVED ! Thank You Ranger & Others
  228. '95 Northstar 4.6 oil leak
  229. Northstar Blower Motor For Sale
  230. 96 Deville running hot
  231. 97 deville stalling, no codes
  232. Changing Spark Plugs- '99 STS
  233. 94 sls overheating,maybe...
  234. I see a lot of posts on supercharging a Northstar
  235. How to get more torque, 03-DTS
  236. Replace or fix
  237. Typical NOOB questions...
  238. Northstar intake manifold
  239. Northstar intake manifold
  240. hey zonie or ranger,
  241. Losing Coolant & Radiator Leakage
  242. ac delco plugs..<-1999 and 2000-> years, whats the difference?
  243. Delco VS Bosch Plug Wires
  244. Oil "Blow By"
  245. Coming 6 speed automatic
  246. WOT - is this the ONLY way to remove carbon buildup?
  247. New source for 80mm throttle bodies!
  248. Is It A Head Gasket???
  249. Jasper Engines
  250. Confused about spark plug type