: Northstar Engines and System Technical Discussion



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  1. 4t80e production changes 95-9
  2. Manifolds are melting my car
  3. Check Atf
  4. Putting Northstar on an Engine Stand
  5. Headgasket job +++?
  6. northstar swap into another car, a few questions
  7. 2002 Seville STS Cataylst Issues
  8. Engine Temperatures
  9. Can a 1999 4.6L Northstar "Y" be replaced/exchanged with a "9" of the same year
  10. Amsoil nano-filters (air & oil)
  11. DELCO PLATINUM #41-950 SPARK PLUGS from eBay
  12. 93 Water Pump Confusion
  13. How to check for bad ignition coil?
  14. 94 Eldorado surge in engine and 4 codes
  15. Questions On Crank Shafts
  16. weird start problem that occured
  17. northstar head switching
  18. Northstar 4.6 Interchange and Swapping
  19. Car Farts After WOT
  20. 1999 Northstar engine 85K Miles, How can one tell if is good
  21. 03 Seville Steering Adjustments? ? ?
  22. On My 3 Rear Main Seal
  23. 96 sts crankshaft position sensors
  24. any tranny experts out there?
  25. Fpr For $141.08
  26. Water pump
  27. Rwd N*
  28. Coolant Drain
  29. Coolant Leak 98 Deville
  30. so any chance of an AFC
  31. AC Compressor bypass
  32. 3.5L Shortstar Ignition
  33. Sound
  34. Northstar reliability...
  35. Name That Part
  36. Post headgasket job, one loose end left.
  37. Need re-assembly advise!
  38. Minor starting problem
  39. does it work? (hyper lube)
  40. 96 cadillac deville code after code?!?
  41. Transmission Durability?
  42. Shaky Tachometer at High RPM
  43. 1996 Seville STS Crank Sensors
  44. What other cars use the same style injectors?
  45. Adding Freon
  46. Lost power steering fluid rapidly. Is there a hose?
  47. Northstar engine rebuilders or performance builders in SoCal?
  48. 95 Northstar Coolant leak
  49. EXP ID Codes
  50. Looking for N*mech in northern RI
  51. 93 Eldorado T.C ignition issues
  52. voltage drops when car in drive
  53. after a&b solenoid
  54. Experts please help
  55. 1994 Cadillac Sevile STS thumping into fourth/overdrive
  56. know it all mechanic
  57. Well fellas, I think its really time....
  58. Northstar Head Gasket Issue
  59. timesert kit - for sale on ebay
  60. Strange rattling
  61. Northstar performance parts
  62. Procedure for Coolant flush
  63. Dynomax - Long life?
  64. Running Functional Test on my 94 Deville Concours.
  65. 94 northstar swap
  66. Airbox Computer?
  67. ICM Replacement
  68. Cranks, but won't start
  69. 96 deville antifreeze coming out exhaust
  70. Its Getting Hot Inside
  71. STS fuel Injection problem NEED HELP
  72. I think I'm missing a few ponies!
  73. 99 Deville Hesitating???
  74. Eliminating the exhaust crossover??
  75. Po138???
  76. Front Valve Cover Removal
  77. You guys read this stuff????
  78. camshaft swap "9" motor to "Y" motor
  79. What is TSB 99-06-04-053?
  80. 94 cadillac concours
  81. Can anyone tell me what these compression numbers mean?
  82. H Gasket Job Ballpark Price Needed for Parts
  83. Heater core replacement, help!
  84. Ah, darn... My 94 Eldorado Is having problems.
  85. Anyone know a reputable transmission shop in Orlando?
  86. Lifter?valve noise
  87. 93 Northstar dies out at idle
  88. Time Sert Kit Needed
  89. Engine Replacement
  90. Broken Head Bolt (small type)
  91. P0741 - TCC System Stuck Off...Now What??
  92. homemade locating dowels - a possibility?
  93. Rear Valve Cover Leak!!
  94. Going from a 4.0 to a 4.6
  95. how many miles on your N*?
  96. Crank Position Sensor Replace Quick Question...
  97. 98 STS code P0404 (and P0300)
  98. Not Nearly As Hard As I Thought
  99. what to do about SO codes...
  100. overfilled tranny....
  101. OBD1 chip reprogramming?
  102. Hey Check Out What Im Doing....
  103. 95-6 transmission harness
  104. new headbolts
  105. Torque Converter Clutch Stuck...How to Fix??
  106. BS? "aftermarket Mass Air Sensor = improved hp, torque and mileage from your car"
  107. pulling engine, top or bottom???
  108. RANGER: Can't Identify Codes...
  109. 1996 1/8th mile times!
  110. '96 SDV Update...2 Codes...Help??
  111. Need a new alternator......
  112. Cranking but not starting.. fuel pump relay?
  113. EXP ID 83, 84, 140, 25 ??? Any Help?
  114. timesert kit for sale
  115. Factory Specs for Compression??
  116. torque wrench advice
  117. Stripped Oil Pan Bolt Hole
  118. Would you like some cheese and crackers with that Whine?
  119. Ready to rebuild-best source for tserts and bearings
  120. Stability Reduced? wut?
  121. Compression numbers for the North*
  122. Options to repair ONE engine block thread
  123. What ever happened to the supercarger for N*?
  124. Torquing of Rocker????
  125. Minor Problem with my 94 SLS
  126. Chip & Bored T/B ???
  127. Why with the Northstar 4.6?
  128. PCM reflash for 95
  129. Sooooo....
  130. cam torque
  131. Blwoin a little smoke..
  132. casting number ID
  133. DANG - Trouble Codes Question
  134. Need some help..abs troubles?
  135. I saw a smoking Deville
  136. PCM Question II
  137. Air intake and airflow
  138. Trans making noise in park and neutral
  139. water pump replacement
  140. Pcm?
  141. STS Engine Cut-Out
  142. 94 SLS 4.6 showing oil pressure
  143. Performance transmission
  144. Aftermarket air intake...
  145. TCS C1287/C1286 help please
  146. Pics..pics...pics.....pics........
  147. Computer Swap Ok?
  148. MIL's - Anyone tried them yet?
  149. Anyone ever done or heard about doing this?
  150. Stumped (P0307)
  151. pressure control circuit code 076
  152. 94 Eldorado 4.6 starting problem
  153. Anyone have sound clips of their exhaust?
  154. 98deville whole computer lit up
  155. TPS autolearn for 1995
  156. '96 DeVille...New Owner...Am I NUTS??
  157. Turbo Track Times
  158. Anyone with rough starts, loss of power..read this.
  159. G-tech pro times.
  160. That's what I call stopping a leak!
  161. Need Valve Body Torque Secs ASAP Please
  162. 98 deville x grandpa mobile
  163. Northstar Experts Please Stand Up.....
  164. Robert Benham
  165. Bleeding air out of cooling system
  166. I think I blew it up
  167. northstar rough accleration/idle
  168. ALBUNDY - can't PM you
  169. Gm top engine cleaner
  170. transmission interchange
  171. 96 deville N* cats question
  172. 94 SLS I seem to be on a losing streak!
  173. Premium vs. Regular
  174. coolant fans
  175. Overheat Part 3
  176. coolant loss
  177. 94 Eldorado Power Steering Fluid?
  178. Big Serts installation
  179. lifter noise?
  180. Some advice
  181. Overheat, Part 2
  182. 2000 STS MAP sensor voltage high?
  183. FRP Help!! ASAP!!
  184. Overheat!
  185. 1999 Eldorado won't start and left me stranded
  186. Anyone use "regular" plug wires in N*?
  187. Higher Stall Converter...
  188. i think i found a fuel control system.
  189. 94 SLS radiator hydraulic line
  190. K&N Intake...I want one!
  191. ABS wiring diagram
  192. What are the available Northstar aftermarket performance parts?
  193. Northstar Oil Leak
  194. Northstar in the 1997-1999 Deville.. questions.
  195. N* with nitrous.
  196. 5000 mile or wait for oil life trigger?
  197. Hi Flow Cat converter to go with Corsa Exhaust, which one?
  198. MSD coils? I hit 104
  199. eldorado1- throttle body for 94 eldo available?
  200. need IAC, TPS, MAP sensors?
  201. 4.6 caddy vs. olds 4.0
  202. Has anyone here added performance parts to a 94 eldorado
  203. Bad coil packs or what?
  204. northstar battery
  205. 94 eldorado bad starter possibly?
  206. Starter change 94 SLS
  207. What's happening to the messages display?
  208. Day after alternator replace, now I need a new belt...coincidence?
  209. block off EGR
  210. Transmisson monitor??
  211. Water pump leak??
  212. Will machined heads mess up the ECU due to increased compression ?
  213. The Turbonator
  214. 96 STS engine swap
  215. Ok explain this.............
  216. Oil on sparkplugs??
  217. need help 96 deville
  218. North Star Temperature
  219. History Codes ??? & P0420
  220. VSS....how hard is it to change?
  221. Engine is not cranking - starter is fine
  222. Oil Leak
  223. Is head gasket a common problem with sts
  224. Please Help!!!!!!!!!
  225. Im running with no suppliment....
  226. Whirring noise.....you thinks its the alternator?
  227. Wot?
  228. 5W30 vs 10W30, pre 2000 Northstar 84 degree weather
  229. Thermagasket, cylinder head repair goop
  230. Head Gasket Repair - DIY?
  231. 4T80E heartbreak with pictures
  232. N* Replacement
  233. Northstar Motor Mechanic From Dealer
  234. Fuel Pump 95 SLS
  235. Minor value cover (head cover) leaks???Concern???
  236. N* Head Gasket Job, What parts should i BUY
  237. Jasper Engines HEAT TAB
  238. Head Gaskets Again !?!?
  239. 96 deville codes/very sluggish start
  240. n* experts chime in
  241. NorthStar Supercharger!!!
  242. 1997 Deville Coolant Flush
  243. I think i got this Traction Control thing figured out!
  244. Northstar Brainteaser
  245. New Northstar in 2008? Ultra?
  246. Service Engine Light and history codes
  247. Whats code 94?
  248. DIY Replace Coolant for 94 STS
  249. Lower Crankcase Reseal
  250. PC0300 with troubleshoot. Coil Resistance?