: Northstar Engines and System Technical Discussion



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  1. 4T80E vs Dexron VI, GM new standard
  2. 200,000 mile mark reality? 1996 STS NStar
  3. It wasnt a hole in the block!!!!!
  4. Just Bought a Granma owned NS w/81K-WOT?
  5. please help!?!?!?!?!
  6. High volt MAP
  7. Rough Idle and Stuttering Acceleration
  8. 94 seville sls oil pan gasket replacement...
  9. 97 headgaskets what else should be done?
  10. Differences in the Northstar engines
  11. PCM info for NorthStar
  12. accessing rear spark plugs
  13. 99 STS Turbo charged video
  14. 1994 Eldorado P083 Code?
  15. Looking for help with Codes
  16. What's this noise....
  17. How do you I.D. an engine?
  18. Expansion tank leaking...
  19. Engine ID
  20. 1994 eldorado fuel pump
  21. unchanged SP wires longevity?
  22. Launch Control for N* ignition
  23. coolant loss
  24. Can I fix my 01 Northstar myself?
  25. Turbo WOT 7psi to REDLINE
  26. 0101 MAF-continues
  27. Turbo Update
  28. changing out o2 sensor on 97 deville
  29. P0404 - Exhaust Gas Recirculation (EGR) Open Position Performance?
  30. deciphering DTC messages into plain English
  31. Cylinder Head Info!
  32. Northstar noise
  33. Best Code Reader/Scanner?
  34. EGR change w/ SS fuel rail- trick maybe
  35. Where is the INPUT SPEED SENSOR?
  36. 97 deville fuel problem
  37. GM coolant additive???
  38. Car wont start
  39. Serpentine belt
  40. no overdrive in my 98 eldo
  41. Really Head Gasket?
  42. New plugs and wires, now misfire
  43. STS Tranny trouble
  44. Improper Sparg plug gap, what happens?
  45. 94 STS hesitates or stumbles
  46. Need a Timesert kit
  47. its been a little while but i am back for good!!
  48. Stalls after fill-up
  49. High Oil Consumption *INFO*
  50. I got porked...Blown N*.
  51. Glowing red exhaust manifolds
  52. Pop Off / Backfire Valve Replacement
  53. fuel filter location?
  54. Pictures of Turbo Project
  55. Head gasket compressed thickness
  56. Emission Codes
  57. Extremely Rough Idle... Cracked Intake Manifold?
  58. Spark Plug Gap
  59. Biggest Problems with the N*'s?
  60. 1999 STS - Timesert question
  61. Gurgling Sound/ Trapped Air in Coolant System
  62. Injector
  63. 95 Deville howl's near the belt
  64. 97 deville N* head gasket costs?????
  65. No overdive
  66. Emmissions Codes
  67. One gear, LIMP MODE? NO CODES
  68. 2000 Deville TCC PWM replacement
  69. p056
  70. 98 Northstar Fuel Rail Recall
  71. Removing bad FPR
  72. '95 Eldorado start-up getting more "difficult"
  73. 93 Northstar Headgasket - Can I do it myself?
  74. Reliability and longevity of a 97 N* motor?
  75. Gas-saving gadgets article
  76. Crank Position Sensor
  77. 1993 1994 Northstar Intake Manifold
  78. How do I spot a head gasket starting to go?
  79. 97 deville radiator drain
  80. N* with code p041
  81. Intake mod
  82. Cold Start Backfire from 97 N*?
  83. OBD2 computer interface
  84. Jasper Verses OEM
  85. 1996 Eldorado Codes
  86. Piston Slap ?
  87. P0420 Code
  88. Northstar oil pump
  89. N*4.6 vibration problem
  90. Cooling system question
  91. Need an engine teardown pic...
  92. Cam Cover Gasket / o-ring replacement
  93. changing altn
  94. Reflash PCM on 96
  95. Link From Consumer Affairs to Dexcool Lawsuit Atty.
  96. Timesert Kit Needed Asap!!!
  97. Failed Emissions Test- But No Codes
  98. fpr fpr
  99. 1999 Northstar with blown head gasket
  100. Water pump??
  101. plugs and wires
  102. Changed TPS on 95 STS d/t P020, now MIL & P080
  103. throttle body cleaning was the answer
  104. Now having trouble in a different way
  105. 200 Deville occasionally won't Idle when starting warm
  106. P1406 Code? EGR?
  107. idle relearn and isc adjust
  108. 1993 Fuel Psi regulator
  109. Cracked Engine Block in 2001 DeVille
  110. 93 -99 N* vs 2000 - 2004, which is better
  111. motor mount...and more
  112. 97 deville leakin trans fluid
  113. MAF replacement
  114. too hot and too cold
  115. Does anybody here have full access to TSB info at alldata?
  116. Overheat SOLVED ! Thank You Ranger & Others
  117. '95 Northstar 4.6 oil leak
  118. Northstar Blower Motor For Sale
  119. 96 Deville running hot
  120. 97 deville stalling, no codes
  121. Changing Spark Plugs- '99 STS
  122. 94 sls overheating,maybe...
  123. I see a lot of posts on supercharging a Northstar
  124. How to get more torque, 03-DTS
  125. Replace or fix
  126. Typical NOOB questions...
  127. Northstar intake manifold
  128. Northstar intake manifold
  129. hey zonie or ranger,
  130. Losing Coolant & Radiator Leakage
  131. ac delco plugs..<-1999 and 2000-> years, whats the difference?
  132. Delco VS Bosch Plug Wires
  133. Oil "Blow By"
  134. Coming 6 speed automatic
  135. WOT - is this the ONLY way to remove carbon buildup?
  136. New source for 80mm throttle bodies!
  137. Is It A Head Gasket???
  138. Jasper Engines
  139. Confused about spark plug type
  140. Surge Tank Design
  141. Stranded out of town!!!
  142. Speed limiter
  143. cams in a northstar
  144. acceleration troubles...
  145. Coolant crossover photos
  146. P0300 Vote!
  147. the best oil for the northstar engine
  148. No Start Please I Need Help!!
  149. 3 questions regarding the timesert job
  150. fuel air mixture
  151. Replacing O2s
  152. P056
  153. Northstar V. 4.9
  154. 97 northstar engine miss
  155. Engine oil leak
  156. IN Trouble Now losing coolant
  157. ice possible message...?
  158. 96 deville oil leak
  159. Replacing a Northstar with a LS1
  160. i cant stand this stalling, why does this happen?
  161. 94STS Blown Gasket Pics
  162. 96 deville
  163. all my problems help!!!!
  164. adding a fuel treatment
  165. Is it normal for...
  166. Surging at low revs and hard shift into 2nd
  167. couple of problems, only one code- AMP B1024
  168. You want DYNO graphs?
  169. 98' Deville Waterpump
  170. The best northstar engine?
  171. How can I avoid head gasket damage?
  172. 93 Northstar Stalls with no codes
  173. '92 Seville radio question
  174. "Clunk" noise at startup? Trans Problem? Help!!
  175. fuel treatment
  176. Code P0101
  177. P023 code on 95 Eldorado
  178. 93 Eldo intermittent no spark,no start
  179. Motor change
  180. Injector malfunction Help!!!!
  181. Mod questions for a 2000 DeVille
  182. Sounds like a bird chirping
  183. 97 deville hesiatation!!!!!
  184. '96 STS OverHeating
  185. Head Gasket on 99 STS
  186. Pcv
  187. 02 DTS, Crank Sensor and Gas Mileage question, HELP!
  188. New solenoid valve kit if anyone wants it
  189. Northstar barely running
  190. Curious about performance mods...
  191. please idlee problemss help!
  192. Self scanning OBD while driving
  193. WOT advice for new member
  194. N* 1994 compatible with 1995????
  195. Coolant level? '97 Deville
  196. p1860 and p0741 repair help
  197. White Exhaust
  198. I have a code that's not on my list of codes. (P069)
  199. IAT sensor
  200. it ran so good in the past
  201. Leak Back Pressure Incorrect
  202. Code P1406 - EGR Valve Pintle Position Circuit
  203. HELP Rear Exhaust Flange Bolt Removal
  204. 02 STS simple things to help performance
  205. Groaning sound.....waterpump?
  206. Installing TPS right now.....
  207. help changed engine
  208. Throttle Body Service...is it worth$$?
  209. Throttle Body Cleaning, worth the hassel?
  210. Coolant Drain Plugs On the N*
  211. codes codes and more codes
  212. service.gm.com password?
  213. years headgaskets go bad?
  214. coolant smell help!
  215. sudden stalling
  216. Dyno results before turbo charging
  217. 4.6 Northstar Parts
  218. Head Gasket Problem!!!
  219. Just had timeserts installed.
  220. oil leak
  221. Loosing Oil and Burning Smell
  222. need info on 1999 cadillac deville engine
  223. Carbon Deposit HELP FAST
  224. ABS Question/New Engine
  225. 3rd or 2nd gear for brake help
  226. O2 sensor
  227. No2 + N* ???
  228. Engine seems to be knocking
  229. No cruise driving me nuts!!!
  230. Throttle body bolt torque specs
  231. Bad Smoke Help Please
  232. Coolant Flushing Pros/Cons?
  233. Hot start...but not the FPR!
  234. failed emissions test
  235. Has anyone had a headgasket leak oil?
  236. Low Oil Pressure Stop Engine !
  237. Carbon Deposit cleaning TEC
  238. Performance Programer 97 ETC??
  239. Ram Air
  240. Surging when cold
  241. N* comp&performance mods
  242. Recall SS and FPR
  243. NS block warp?
  244. 97 Etc Cpu Mods Or Other N* Perfromance
  245. Head gasket leak after
  246. Corrupt Miles.
  247. Anyone dyno their Caddy?
  248. Rough Running 97 DeVille
  249. Northster Squeel/Whistle
  250. Sweet exhaust smell?