: Northstar Engines and System Technical Discussion



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