: Northstar Engines and System Technical Discussion



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