: Northstar Engines and System Technical Discussion



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