: Northstar Engines and System Technical Discussion



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  1. Engine Error Codes...Please Help
  2. 4.6 L NorthStar Engine Design Questions
  3. multi miss fire multi codes 1996 dev
  4. Have a big ?
  5. What does it all mean?
  6. Metal flakes in engine oil
  7. latest lower end seal job procedure
  8. OBDII Tuner software for Northstar.
  9. Poor gas mileage in aurora 4.0
  10. Northstar Head Gasket, which side, which jug is more common
  11. Code P1415 help?
  12. need new O2s
  13. 2002 Deville transmission
  14. Wanted:1999 4.6 NorthStar leak-down values
  15. MAP Sensor relocation
  16. Can someone explain HOW my injectors went bad?
  17. Bad Mileage Not Fpr
  18. 1999 Cadillac STS Exhaust Mufflers
  19. 4t80e production changes 95-9
  20. Manifolds are melting my car
  21. Check Atf
  22. Putting Northstar on an Engine Stand
  23. Headgasket job +++?
  24. northstar swap into another car, a few questions
  25. 2002 Seville STS Cataylst Issues
  26. Engine Temperatures
  27. Can a 1999 4.6L Northstar "Y" be replaced/exchanged with a "9" of the same year
  28. Amsoil nano-filters (air & oil)
  29. DELCO PLATINUM #41-950 SPARK PLUGS from eBay
  30. 93 Water Pump Confusion
  31. How to check for bad ignition coil?
  32. 94 Eldorado surge in engine and 4 codes
  33. Questions On Crank Shafts
  34. weird start problem that occured
  35. northstar head switching
  36. Northstar 4.6 Interchange and Swapping
  37. Car Farts After WOT
  38. 1999 Northstar engine 85K Miles, How can one tell if is good
  39. 03 Seville Steering Adjustments? ? ?
  40. On My 3 Rear Main Seal
  41. 96 sts crankshaft position sensors
  42. any tranny experts out there?
  43. Fpr For $141.08
  44. Water pump
  45. Rwd N*
  46. Coolant Drain
  47. Coolant Leak 98 Deville
  48. so any chance of an AFC
  49. AC Compressor bypass
  50. 3.5L Shortstar Ignition
  51. Sound
  52. Northstar reliability...
  53. Name That Part
  54. Post headgasket job, one loose end left.
  55. Need re-assembly advise!
  56. Minor starting problem
  57. does it work? (hyper lube)
  58. 96 cadillac deville code after code?!?
  59. Transmission Durability?
  60. Shaky Tachometer at High RPM
  61. 1996 Seville STS Crank Sensors
  62. What other cars use the same style injectors?
  63. Adding Freon
  64. Lost power steering fluid rapidly. Is there a hose?
  65. Northstar engine rebuilders or performance builders in SoCal?
  66. 95 Northstar Coolant leak
  67. EXP ID Codes
  68. Looking for N*mech in northern RI
  69. 93 Eldorado T.C ignition issues
  70. voltage drops when car in drive
  71. after a&b solenoid
  72. Experts please help
  73. 1994 Cadillac Sevile STS thumping into fourth/overdrive
  74. know it all mechanic
  75. Well fellas, I think its really time....
  76. Northstar Head Gasket Issue
  77. timesert kit - for sale on ebay
  78. Strange rattling
  79. Northstar performance parts
  80. Procedure for Coolant flush
  81. Dynomax - Long life?
  82. Running Functional Test on my 94 Deville Concours.
  83. 94 northstar swap
  84. Airbox Computer?
  85. ICM Replacement
  86. Cranks, but won't start
  87. 96 deville antifreeze coming out exhaust
  88. Its Getting Hot Inside
  89. STS fuel Injection problem NEED HELP
  90. I think I'm missing a few ponies!
  91. 99 Deville Hesitating???
  92. Eliminating the exhaust crossover??
  93. Po138???
  94. Front Valve Cover Removal
  95. You guys read this stuff????
  96. camshaft swap "9" motor to "Y" motor
  97. What is TSB 99-06-04-053?
  98. 94 cadillac concours
  99. Can anyone tell me what these compression numbers mean?
  100. H Gasket Job Ballpark Price Needed for Parts
  101. Heater core replacement, help!
  102. Ah, darn... My 94 Eldorado Is having problems.
  103. Anyone know a reputable transmission shop in Orlando?
  104. Lifter?valve noise
  105. 93 Northstar dies out at idle
  106. Time Sert Kit Needed
  107. Engine Replacement
  108. Broken Head Bolt (small type)
  109. P0741 - TCC System Stuck Off...Now What??
  110. homemade locating dowels - a possibility?
  111. Rear Valve Cover Leak!!
  112. Going from a 4.0 to a 4.6
  113. how many miles on your N*?
  114. Crank Position Sensor Replace Quick Question...
  115. 98 STS code P0404 (and P0300)
  116. Not Nearly As Hard As I Thought
  117. what to do about SO codes...
  118. overfilled tranny....
  119. OBD1 chip reprogramming?
  120. Hey Check Out What Im Doing....
  121. 95-6 transmission harness
  122. new headbolts
  123. Torque Converter Clutch Stuck...How to Fix??
  124. BS? "aftermarket Mass Air Sensor = improved hp, torque and mileage from your car"
  125. pulling engine, top or bottom???
  126. RANGER: Can't Identify Codes...
  127. 1996 1/8th mile times!
  128. '96 SDV Update...2 Codes...Help??
  129. Need a new alternator......
  130. Cranking but not starting.. fuel pump relay?
  131. EXP ID 83, 84, 140, 25 ??? Any Help?
  132. timesert kit for sale
  133. Factory Specs for Compression??
  134. torque wrench advice
  135. Stripped Oil Pan Bolt Hole
  136. Would you like some cheese and crackers with that Whine?
  137. Ready to rebuild-best source for tserts and bearings
  138. Stability Reduced? wut?
  139. Compression numbers for the North*
  140. Options to repair ONE engine block thread
  141. What ever happened to the supercarger for N*?
  142. Torquing of Rocker????
  143. Minor Problem with my 94 SLS
  144. Chip & Bored T/B ???
  145. Why with the Northstar 4.6?
  146. PCM reflash for 95
  147. Sooooo....
  148. cam torque
  149. Blwoin a little smoke..
  150. casting number ID
  151. DANG - Trouble Codes Question
  152. Need some help..abs troubles?
  153. I saw a smoking Deville
  154. PCM Question II
  155. Air intake and airflow
  156. Trans making noise in park and neutral
  157. water pump replacement
  158. Pcm?
  159. STS Engine Cut-Out
  160. 94 SLS 4.6 showing oil pressure
  161. Performance transmission
  162. Aftermarket air intake...
  163. TCS C1287/C1286 help please
  164. Pics..pics...pics.....pics........
  165. Computer Swap Ok?
  166. MIL's - Anyone tried them yet?
  167. Anyone ever done or heard about doing this?
  168. Stumped (P0307)
  169. pressure control circuit code 076
  170. 94 Eldorado 4.6 starting problem
  171. Anyone have sound clips of their exhaust?
  172. 98deville whole computer lit up
  173. TPS autolearn for 1995
  174. '96 DeVille...New Owner...Am I NUTS??
  175. Turbo Track Times
  176. Anyone with rough starts, loss of power..read this.
  177. G-tech pro times.
  178. That's what I call stopping a leak!
  179. Need Valve Body Torque Secs ASAP Please
  180. 98 deville x grandpa mobile
  181. Northstar Experts Please Stand Up.....
  182. Robert Benham
  183. Bleeding air out of cooling system
  184. I think I blew it up
  185. northstar rough accleration/idle
  186. ALBUNDY - can't PM you
  187. Gm top engine cleaner
  188. transmission interchange
  189. 96 deville N* cats question
  190. 94 SLS I seem to be on a losing streak!
  191. Premium vs. Regular
  192. coolant fans
  193. Overheat Part 3
  194. coolant loss
  195. 94 Eldorado Power Steering Fluid?
  196. Big Serts installation
  197. lifter noise?
  198. Some advice
  199. Overheat, Part 2
  200. 2000 STS MAP sensor voltage high?
  201. FRP Help!! ASAP!!
  202. Overheat!
  203. 1999 Eldorado won't start and left me stranded
  204. Anyone use "regular" plug wires in N*?
  205. Higher Stall Converter...
  206. i think i found a fuel control system.
  207. 94 SLS radiator hydraulic line
  208. K&N Intake...I want one!
  209. ABS wiring diagram
  210. What are the available Northstar aftermarket performance parts?
  211. Northstar Oil Leak
  212. Northstar in the 1997-1999 Deville.. questions.
  213. N* with nitrous.
  214. 5000 mile or wait for oil life trigger?
  215. Hi Flow Cat converter to go with Corsa Exhaust, which one?
  216. MSD coils? I hit 104
  217. eldorado1- throttle body for 94 eldo available?
  218. need IAC, TPS, MAP sensors?
  219. 4.6 caddy vs. olds 4.0
  220. Has anyone here added performance parts to a 94 eldorado
  221. Bad coil packs or what?
  222. northstar battery
  223. 94 eldorado bad starter possibly?
  224. Starter change 94 SLS
  225. What's happening to the messages display?
  226. Day after alternator replace, now I need a new belt...coincidence?
  227. block off EGR
  228. Transmisson monitor??
  229. Water pump leak??
  230. Will machined heads mess up the ECU due to increased compression ?
  231. The Turbonator
  232. 96 STS engine swap
  233. Ok explain this.............
  234. Oil on sparkplugs??
  235. need help 96 deville
  236. North Star Temperature
  237. History Codes ??? & P0420
  238. VSS....how hard is it to change?
  239. Engine is not cranking - starter is fine
  240. Oil Leak
  241. Is head gasket a common problem with sts
  242. Please Help!!!!!!!!!
  243. Im running with no suppliment....
  244. Whirring noise.....you thinks its the alternator?
  245. Wot?
  246. 5W30 vs 10W30, pre 2000 Northstar 84 degree weather
  247. Thermagasket, cylinder head repair goop
  248. Head Gasket Repair - DIY?
  249. 4T80E heartbreak with pictures
  250. N* Replacement