: Northstar Engines and System Technical Discussion



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