: Northstar Engines and System Technical Discussion



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  1. Wanted:1999 4.6 NorthStar leak-down values
  2. MAP Sensor relocation
  3. Can someone explain HOW my injectors went bad?
  4. Bad Mileage Not Fpr
  5. 1999 Cadillac STS Exhaust Mufflers
  6. 4t80e production changes 95-9
  7. Manifolds are melting my car
  8. Check Atf
  9. Putting Northstar on an Engine Stand
  10. Headgasket job +++?
  11. northstar swap into another car, a few questions
  12. 2002 Seville STS Cataylst Issues
  13. Engine Temperatures
  14. Can a 1999 4.6L Northstar "Y" be replaced/exchanged with a "9" of the same year
  15. Amsoil nano-filters (air & oil)
  16. DELCO PLATINUM #41-950 SPARK PLUGS from eBay
  17. 93 Water Pump Confusion
  18. How to check for bad ignition coil?
  19. 94 Eldorado surge in engine and 4 codes
  20. Questions On Crank Shafts
  21. weird start problem that occured
  22. northstar head switching
  23. Northstar 4.6 Interchange and Swapping
  24. Car Farts After WOT
  25. 1999 Northstar engine 85K Miles, How can one tell if is good
  26. 03 Seville Steering Adjustments? ? ?
  27. On My 3 Rear Main Seal
  28. 96 sts crankshaft position sensors
  29. any tranny experts out there?
  30. Fpr For $141.08
  31. Water pump
  32. Rwd N*
  33. Coolant Drain
  34. Coolant Leak 98 Deville
  35. so any chance of an AFC
  36. AC Compressor bypass
  37. 3.5L Shortstar Ignition
  38. Sound
  39. Northstar reliability...
  40. Name That Part
  41. Post headgasket job, one loose end left.
  42. Need re-assembly advise!
  43. Minor starting problem
  44. does it work? (hyper lube)
  45. 96 cadillac deville code after code?!?
  46. Transmission Durability?
  47. Shaky Tachometer at High RPM
  48. 1996 Seville STS Crank Sensors
  49. What other cars use the same style injectors?
  50. Adding Freon
  51. Lost power steering fluid rapidly. Is there a hose?
  52. Northstar engine rebuilders or performance builders in SoCal?
  53. 95 Northstar Coolant leak
  54. EXP ID Codes
  55. Looking for N*mech in northern RI
  56. 93 Eldorado T.C ignition issues
  57. voltage drops when car in drive
  58. after a&b solenoid
  59. Experts please help
  60. 1994 Cadillac Sevile STS thumping into fourth/overdrive
  61. know it all mechanic
  62. Well fellas, I think its really time....
  63. Northstar Head Gasket Issue
  64. timesert kit - for sale on ebay
  65. Strange rattling
  66. Northstar performance parts
  67. Procedure for Coolant flush
  68. Dynomax - Long life?
  69. Running Functional Test on my 94 Deville Concours.
  70. 94 northstar swap
  71. Airbox Computer?
  72. ICM Replacement
  73. Cranks, but won't start
  74. 96 deville antifreeze coming out exhaust
  75. Its Getting Hot Inside
  76. STS fuel Injection problem NEED HELP
  77. I think I'm missing a few ponies!
  78. 99 Deville Hesitating???
  79. Eliminating the exhaust crossover??
  80. Po138???
  81. Front Valve Cover Removal
  82. You guys read this stuff????
  83. camshaft swap "9" motor to "Y" motor
  84. What is TSB 99-06-04-053?
  85. 94 cadillac concours
  86. Can anyone tell me what these compression numbers mean?
  87. H Gasket Job Ballpark Price Needed for Parts
  88. Heater core replacement, help!
  89. Ah, darn... My 94 Eldorado Is having problems.
  90. Anyone know a reputable transmission shop in Orlando?
  91. Lifter?valve noise
  92. 93 Northstar dies out at idle
  93. Time Sert Kit Needed
  94. Engine Replacement
  95. Broken Head Bolt (small type)
  96. P0741 - TCC System Stuck Off...Now What??
  97. homemade locating dowels - a possibility?
  98. Rear Valve Cover Leak!!
  99. Going from a 4.0 to a 4.6
  100. how many miles on your N*?
  101. Crank Position Sensor Replace Quick Question...
  102. 98 STS code P0404 (and P0300)
  103. Not Nearly As Hard As I Thought
  104. what to do about SO codes...
  105. overfilled tranny....
  106. OBD1 chip reprogramming?
  107. Hey Check Out What Im Doing....
  108. 95-6 transmission harness
  109. new headbolts
  110. Torque Converter Clutch Stuck...How to Fix??
  111. BS? "aftermarket Mass Air Sensor = improved hp, torque and mileage from your car"
  112. pulling engine, top or bottom???
  113. RANGER: Can't Identify Codes...
  114. 1996 1/8th mile times!
  115. '96 SDV Update...2 Codes...Help??
  116. Need a new alternator......
  117. Cranking but not starting.. fuel pump relay?
  118. EXP ID 83, 84, 140, 25 ??? Any Help?
  119. timesert kit for sale
  120. Factory Specs for Compression??
  121. torque wrench advice
  122. Stripped Oil Pan Bolt Hole
  123. Would you like some cheese and crackers with that Whine?
  124. Ready to rebuild-best source for tserts and bearings
  125. Stability Reduced? wut?
  126. Compression numbers for the North*
  127. Options to repair ONE engine block thread
  128. What ever happened to the supercarger for N*?
  129. Torquing of Rocker????
  130. Minor Problem with my 94 SLS
  131. Chip & Bored T/B ???
  132. Why with the Northstar 4.6?
  133. PCM reflash for 95
  134. Sooooo....
  135. cam torque
  136. Blwoin a little smoke..
  137. casting number ID
  138. DANG - Trouble Codes Question
  139. Need some help..abs troubles?
  140. I saw a smoking Deville
  141. PCM Question II
  142. Air intake and airflow
  143. Trans making noise in park and neutral
  144. water pump replacement
  145. Pcm?
  146. STS Engine Cut-Out
  147. 94 SLS 4.6 showing oil pressure
  148. Performance transmission
  149. Aftermarket air intake...
  150. TCS C1287/C1286 help please
  151. Pics..pics...pics.....pics........
  152. Computer Swap Ok?
  153. MIL's - Anyone tried them yet?
  154. Anyone ever done or heard about doing this?
  155. Stumped (P0307)
  156. pressure control circuit code 076
  157. 94 Eldorado 4.6 starting problem
  158. Anyone have sound clips of their exhaust?
  159. 98deville whole computer lit up
  160. TPS autolearn for 1995
  161. '96 DeVille...New Owner...Am I NUTS??
  162. Turbo Track Times
  163. Anyone with rough starts, loss of power..read this.
  164. G-tech pro times.
  165. That's what I call stopping a leak!
  166. Need Valve Body Torque Secs ASAP Please
  167. 98 deville x grandpa mobile
  168. Northstar Experts Please Stand Up.....
  169. Robert Benham
  170. Bleeding air out of cooling system
  171. I think I blew it up
  172. northstar rough accleration/idle
  173. ALBUNDY - can't PM you
  174. Gm top engine cleaner
  175. transmission interchange
  176. 96 deville N* cats question
  177. 94 SLS I seem to be on a losing streak!
  178. Premium vs. Regular
  179. coolant fans
  180. Overheat Part 3
  181. coolant loss
  182. 94 Eldorado Power Steering Fluid?
  183. Big Serts installation
  184. lifter noise?
  185. Some advice
  186. Overheat, Part 2
  187. 2000 STS MAP sensor voltage high?
  188. FRP Help!! ASAP!!
  189. Overheat!
  190. 1999 Eldorado won't start and left me stranded
  191. Anyone use "regular" plug wires in N*?
  192. Higher Stall Converter...
  193. i think i found a fuel control system.
  194. 94 SLS radiator hydraulic line
  195. K&N Intake...I want one!
  196. ABS wiring diagram
  197. What are the available Northstar aftermarket performance parts?
  198. Northstar Oil Leak
  199. Northstar in the 1997-1999 Deville.. questions.
  200. N* with nitrous.
  201. 5000 mile or wait for oil life trigger?
  202. Hi Flow Cat converter to go with Corsa Exhaust, which one?
  203. MSD coils? I hit 104
  204. eldorado1- throttle body for 94 eldo available?
  205. need IAC, TPS, MAP sensors?
  206. 4.6 caddy vs. olds 4.0
  207. Has anyone here added performance parts to a 94 eldorado
  208. Bad coil packs or what?
  209. northstar battery
  210. 94 eldorado bad starter possibly?
  211. Starter change 94 SLS
  212. What's happening to the messages display?
  213. Day after alternator replace, now I need a new belt...coincidence?
  214. block off EGR
  215. Transmisson monitor??
  216. Water pump leak??
  217. Will machined heads mess up the ECU due to increased compression ?
  218. The Turbonator
  219. 96 STS engine swap
  220. Ok explain this.............
  221. Oil on sparkplugs??
  222. need help 96 deville
  223. North Star Temperature
  224. History Codes ??? & P0420
  225. VSS....how hard is it to change?
  226. Engine is not cranking - starter is fine
  227. Oil Leak
  228. Is head gasket a common problem with sts
  229. Please Help!!!!!!!!!
  230. Im running with no suppliment....
  231. Whirring noise.....you thinks its the alternator?
  232. Wot?
  233. 5W30 vs 10W30, pre 2000 Northstar 84 degree weather
  234. Thermagasket, cylinder head repair goop
  235. Head Gasket Repair - DIY?
  236. 4T80E heartbreak with pictures
  237. N* Replacement
  238. Northstar Motor Mechanic From Dealer
  239. Fuel Pump 95 SLS
  240. Minor value cover (head cover) leaks???Concern???
  241. N* Head Gasket Job, What parts should i BUY
  242. Jasper Engines HEAT TAB
  243. Head Gaskets Again !?!?
  244. 96 deville codes/very sluggish start
  245. n* experts chime in
  246. NorthStar Supercharger!!!
  247. 1997 Deville Coolant Flush
  248. I think i got this Traction Control thing figured out!
  249. Northstar Brainteaser
  250. New Northstar in 2008? Ultra?