: Northstar Engines and System Technical Discussion



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  1. Post Head gasket job (need Veteran rebuilders advise)
  2. 94 concours acting up..
  3. Trans Question 01 DTS
  4. Engine Error Codes...Please Help
  5. 4.6 L NorthStar Engine Design Questions
  6. multi miss fire multi codes 1996 dev
  7. Have a big ?
  8. What does it all mean?
  9. Metal flakes in engine oil
  10. latest lower end seal job procedure
  11. OBDII Tuner software for Northstar.
  12. Poor gas mileage in aurora 4.0
  13. Northstar Head Gasket, which side, which jug is more common
  14. Code P1415 help?
  15. need new O2s
  16. 2002 Deville transmission
  17. Wanted:1999 4.6 NorthStar leak-down values
  18. MAP Sensor relocation
  19. Can someone explain HOW my injectors went bad?
  20. Bad Mileage Not Fpr
  21. 1999 Cadillac STS Exhaust Mufflers
  22. 4t80e production changes 95-9
  23. Manifolds are melting my car
  24. Check Atf
  25. Putting Northstar on an Engine Stand
  26. Headgasket job +++?
  27. northstar swap into another car, a few questions
  28. 2002 Seville STS Cataylst Issues
  29. Engine Temperatures
  30. Can a 1999 4.6L Northstar "Y" be replaced/exchanged with a "9" of the same year
  31. Amsoil nano-filters (air & oil)
  32. DELCO PLATINUM #41-950 SPARK PLUGS from eBay
  33. 93 Water Pump Confusion
  34. How to check for bad ignition coil?
  35. 94 Eldorado surge in engine and 4 codes
  36. Questions On Crank Shafts
  37. weird start problem that occured
  38. northstar head switching
  39. Northstar 4.6 Interchange and Swapping
  40. Car Farts After WOT
  41. 1999 Northstar engine 85K Miles, How can one tell if is good
  42. 03 Seville Steering Adjustments? ? ?
  43. On My 3 Rear Main Seal
  44. 96 sts crankshaft position sensors
  45. any tranny experts out there?
  46. Fpr For $141.08
  47. Water pump
  48. Rwd N*
  49. Coolant Drain
  50. Coolant Leak 98 Deville
  51. so any chance of an AFC
  52. AC Compressor bypass
  53. 3.5L Shortstar Ignition
  54. Sound
  55. Northstar reliability...
  56. Name That Part
  57. Post headgasket job, one loose end left.
  58. Need re-assembly advise!
  59. Minor starting problem
  60. does it work? (hyper lube)
  61. 96 cadillac deville code after code?!?
  62. Transmission Durability?
  63. Shaky Tachometer at High RPM
  64. 1996 Seville STS Crank Sensors
  65. What other cars use the same style injectors?
  66. Adding Freon
  67. Lost power steering fluid rapidly. Is there a hose?
  68. Northstar engine rebuilders or performance builders in SoCal?
  69. 95 Northstar Coolant leak
  70. EXP ID Codes
  71. Looking for N*mech in northern RI
  72. 93 Eldorado T.C ignition issues
  73. voltage drops when car in drive
  74. after a&b solenoid
  75. Experts please help
  76. 1994 Cadillac Sevile STS thumping into fourth/overdrive
  77. know it all mechanic
  78. Well fellas, I think its really time....
  79. Northstar Head Gasket Issue
  80. timesert kit - for sale on ebay
  81. Strange rattling
  82. Northstar performance parts
  83. Procedure for Coolant flush
  84. Dynomax - Long life?
  85. Running Functional Test on my 94 Deville Concours.
  86. 94 northstar swap
  87. Airbox Computer?
  88. ICM Replacement
  89. Cranks, but won't start
  90. 96 deville antifreeze coming out exhaust
  91. Its Getting Hot Inside
  92. STS fuel Injection problem NEED HELP
  93. I think I'm missing a few ponies!
  94. 99 Deville Hesitating???
  95. Eliminating the exhaust crossover??
  96. Po138???
  97. Front Valve Cover Removal
  98. You guys read this stuff????
  99. camshaft swap "9" motor to "Y" motor
  100. What is TSB 99-06-04-053?
  101. 94 cadillac concours
  102. Can anyone tell me what these compression numbers mean?
  103. H Gasket Job Ballpark Price Needed for Parts
  104. Heater core replacement, help!
  105. Ah, darn... My 94 Eldorado Is having problems.
  106. Anyone know a reputable transmission shop in Orlando?
  107. Lifter?valve noise
  108. 93 Northstar dies out at idle
  109. Time Sert Kit Needed
  110. Engine Replacement
  111. Broken Head Bolt (small type)
  112. P0741 - TCC System Stuck Off...Now What??
  113. homemade locating dowels - a possibility?
  114. Rear Valve Cover Leak!!
  115. Going from a 4.0 to a 4.6
  116. how many miles on your N*?
  117. Crank Position Sensor Replace Quick Question...
  118. 98 STS code P0404 (and P0300)
  119. Not Nearly As Hard As I Thought
  120. what to do about SO codes...
  121. overfilled tranny....
  122. OBD1 chip reprogramming?
  123. Hey Check Out What Im Doing....
  124. 95-6 transmission harness
  125. new headbolts
  126. Torque Converter Clutch Stuck...How to Fix??
  127. BS? "aftermarket Mass Air Sensor = improved hp, torque and mileage from your car"
  128. pulling engine, top or bottom???
  129. RANGER: Can't Identify Codes...
  130. 1996 1/8th mile times!
  131. '96 SDV Update...2 Codes...Help??
  132. Need a new alternator......
  133. Cranking but not starting.. fuel pump relay?
  134. EXP ID 83, 84, 140, 25 ??? Any Help?
  135. timesert kit for sale
  136. Factory Specs for Compression??
  137. torque wrench advice
  138. Stripped Oil Pan Bolt Hole
  139. Would you like some cheese and crackers with that Whine?
  140. Ready to rebuild-best source for tserts and bearings
  141. Stability Reduced? wut?
  142. Compression numbers for the North*
  143. Options to repair ONE engine block thread
  144. What ever happened to the supercarger for N*?
  145. Torquing of Rocker????
  146. Minor Problem with my 94 SLS
  147. Chip & Bored T/B ???
  148. Why with the Northstar 4.6?
  149. PCM reflash for 95
  150. Sooooo....
  151. cam torque
  152. Blwoin a little smoke..
  153. casting number ID
  154. DANG - Trouble Codes Question
  155. Need some help..abs troubles?
  156. I saw a smoking Deville
  157. PCM Question II
  158. Air intake and airflow
  159. Trans making noise in park and neutral
  160. water pump replacement
  161. Pcm?
  162. STS Engine Cut-Out
  163. 94 SLS 4.6 showing oil pressure
  164. Performance transmission
  165. Aftermarket air intake...
  166. TCS C1287/C1286 help please
  167. Pics..pics...pics.....pics........
  168. Computer Swap Ok?
  169. MIL's - Anyone tried them yet?
  170. Anyone ever done or heard about doing this?
  171. Stumped (P0307)
  172. pressure control circuit code 076
  173. 94 Eldorado 4.6 starting problem
  174. Anyone have sound clips of their exhaust?
  175. 98deville whole computer lit up
  176. TPS autolearn for 1995
  177. '96 DeVille...New Owner...Am I NUTS??
  178. Turbo Track Times
  179. Anyone with rough starts, loss of power..read this.
  180. G-tech pro times.
  181. That's what I call stopping a leak!
  182. Need Valve Body Torque Secs ASAP Please
  183. 98 deville x grandpa mobile
  184. Northstar Experts Please Stand Up.....
  185. Robert Benham
  186. Bleeding air out of cooling system
  187. I think I blew it up
  188. northstar rough accleration/idle
  189. ALBUNDY - can't PM you
  190. Gm top engine cleaner
  191. transmission interchange
  192. 96 deville N* cats question
  193. 94 SLS I seem to be on a losing streak!
  194. Premium vs. Regular
  195. coolant fans
  196. Overheat Part 3
  197. coolant loss
  198. 94 Eldorado Power Steering Fluid?
  199. Big Serts installation
  200. lifter noise?
  201. Some advice
  202. Overheat, Part 2
  203. 2000 STS MAP sensor voltage high?
  204. FRP Help!! ASAP!!
  205. Overheat!
  206. 1999 Eldorado won't start and left me stranded
  207. Anyone use "regular" plug wires in N*?
  208. Higher Stall Converter...
  209. i think i found a fuel control system.
  210. 94 SLS radiator hydraulic line
  211. K&N Intake...I want one!
  212. ABS wiring diagram
  213. What are the available Northstar aftermarket performance parts?
  214. Northstar Oil Leak
  215. Northstar in the 1997-1999 Deville.. questions.
  216. N* with nitrous.
  217. 5000 mile or wait for oil life trigger?
  218. Hi Flow Cat converter to go with Corsa Exhaust, which one?
  219. MSD coils? I hit 104
  220. eldorado1- throttle body for 94 eldo available?
  221. need IAC, TPS, MAP sensors?
  222. 4.6 caddy vs. olds 4.0
  223. Has anyone here added performance parts to a 94 eldorado
  224. Bad coil packs or what?
  225. northstar battery
  226. 94 eldorado bad starter possibly?
  227. Starter change 94 SLS
  228. What's happening to the messages display?
  229. Day after alternator replace, now I need a new belt...coincidence?
  230. block off EGR
  231. Transmisson monitor??
  232. Water pump leak??
  233. Will machined heads mess up the ECU due to increased compression ?
  234. The Turbonator
  235. 96 STS engine swap
  236. Ok explain this.............
  237. Oil on sparkplugs??
  238. need help 96 deville
  239. North Star Temperature
  240. History Codes ??? & P0420
  241. VSS....how hard is it to change?
  242. Engine is not cranking - starter is fine
  243. Oil Leak
  244. Is head gasket a common problem with sts
  245. Please Help!!!!!!!!!
  246. Im running with no suppliment....
  247. Whirring noise.....you thinks its the alternator?
  248. Wot?
  249. 5W30 vs 10W30, pre 2000 Northstar 84 degree weather
  250. Thermagasket, cylinder head repair goop