: Northstar Engines and System Technical Discussion



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