: Northstar Engines and System Technical Discussion



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