: Northstar Engines and System Technical Discussion



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  1. How difficult is this?
  2. It won't fire!!!!
  3. Northstar stands alone?
  4. Engine on or off during On Board Diagnostics?
  5. timing pics, homemade locating pins, please look
  6. HELP! Need part number........
  7. AC Recharging Help
  8. About those electric superchargers...
  9. Possibly the best sounding N*?
  10. $660 tune up for 95 STS??!!
  11. Engine Temp. Sensor
  12. When do I replace the AC Compressor
  13. 94 SLS 4.6l, code P071
  14. 130mph??
  15. oil filter adapter
  16. 94 to 97 Northstar interchange question
  17. Bad batch of DELCO PLATINUM 41-950 SPARK PLUGS
  18. How long should plugs/wires last?
  19. Easy question - which is right and which is left?
  20. Tell me how to do a WOT.
  21. How did this guy do burnouts?
  22. 95 Eldorado occasional starting problem.
  23. Coolant change Air purging?
  24. two torque sequences?
  25. mystery oil leak
  26. Still Can't Get The Front Valve Cover Off!!!
  27. Ignition System Problems
  28. This sounds dumb but I'm gonna ask anyway - air intake question
  29. A/C recharge
  30. API grades
  31. Engine Difference between 97' & 99' STS?
  32. part# for speedy sleeve
  33. Post Head gasket job (need Veteran rebuilders advise)
  34. 94 concours acting up..
  35. Trans Question 01 DTS
  36. Engine Error Codes...Please Help
  37. 4.6 L NorthStar Engine Design Questions
  38. multi miss fire multi codes 1996 dev
  39. Have a big ?
  40. What does it all mean?
  41. Metal flakes in engine oil
  42. latest lower end seal job procedure
  43. OBDII Tuner software for Northstar.
  44. Poor gas mileage in aurora 4.0
  45. Northstar Head Gasket, which side, which jug is more common
  46. Code P1415 help?
  47. need new O2s
  48. 2002 Deville transmission
  49. Wanted:1999 4.6 NorthStar leak-down values
  50. MAP Sensor relocation
  51. Can someone explain HOW my injectors went bad?
  52. Bad Mileage Not Fpr
  53. 1999 Cadillac STS Exhaust Mufflers
  54. 4t80e production changes 95-9
  55. Manifolds are melting my car
  56. Check Atf
  57. Putting Northstar on an Engine Stand
  58. Headgasket job +++?
  59. northstar swap into another car, a few questions
  60. 2002 Seville STS Cataylst Issues
  61. Engine Temperatures
  62. Can a 1999 4.6L Northstar "Y" be replaced/exchanged with a "9" of the same year
  63. Amsoil nano-filters (air & oil)
  64. DELCO PLATINUM #41-950 SPARK PLUGS from eBay
  65. 93 Water Pump Confusion
  66. How to check for bad ignition coil?
  67. 94 Eldorado surge in engine and 4 codes
  68. Questions On Crank Shafts
  69. weird start problem that occured
  70. northstar head switching
  71. Northstar 4.6 Interchange and Swapping
  72. Car Farts After WOT
  73. 1999 Northstar engine 85K Miles, How can one tell if is good
  74. 03 Seville Steering Adjustments? ? ?
  75. On My 3 Rear Main Seal
  76. 96 sts crankshaft position sensors
  77. any tranny experts out there?
  78. Fpr For $141.08
  79. Water pump
  80. Rwd N*
  81. Coolant Drain
  82. Coolant Leak 98 Deville
  83. so any chance of an AFC
  84. AC Compressor bypass
  85. 3.5L Shortstar Ignition
  86. Sound
  87. Northstar reliability...
  88. Name That Part
  89. Post headgasket job, one loose end left.
  90. Need re-assembly advise!
  91. Minor starting problem
  92. does it work? (hyper lube)
  93. 96 cadillac deville code after code?!?
  94. Transmission Durability?
  95. Shaky Tachometer at High RPM
  96. 1996 Seville STS Crank Sensors
  97. What other cars use the same style injectors?
  98. Adding Freon
  99. Lost power steering fluid rapidly. Is there a hose?
  100. Northstar engine rebuilders or performance builders in SoCal?
  101. 95 Northstar Coolant leak
  102. EXP ID Codes
  103. Looking for N*mech in northern RI
  104. 93 Eldorado T.C ignition issues
  105. voltage drops when car in drive
  106. after a&b solenoid
  107. Experts please help
  108. 1994 Cadillac Sevile STS thumping into fourth/overdrive
  109. know it all mechanic
  110. Well fellas, I think its really time....
  111. Northstar Head Gasket Issue
  112. timesert kit - for sale on ebay
  113. Strange rattling
  114. Northstar performance parts
  115. Procedure for Coolant flush
  116. Dynomax - Long life?
  117. Running Functional Test on my 94 Deville Concours.
  118. 94 northstar swap
  119. Airbox Computer?
  120. ICM Replacement
  121. Cranks, but won't start
  122. 96 deville antifreeze coming out exhaust
  123. Its Getting Hot Inside
  124. STS fuel Injection problem NEED HELP
  125. I think I'm missing a few ponies!
  126. 99 Deville Hesitating???
  127. Eliminating the exhaust crossover??
  128. Po138???
  129. Front Valve Cover Removal
  130. You guys read this stuff????
  131. camshaft swap "9" motor to "Y" motor
  132. What is TSB 99-06-04-053?
  133. 94 cadillac concours
  134. Can anyone tell me what these compression numbers mean?
  135. H Gasket Job Ballpark Price Needed for Parts
  136. Heater core replacement, help!
  137. Ah, darn... My 94 Eldorado Is having problems.
  138. Anyone know a reputable transmission shop in Orlando?
  139. Lifter?valve noise
  140. 93 Northstar dies out at idle
  141. Time Sert Kit Needed
  142. Engine Replacement
  143. Broken Head Bolt (small type)
  144. P0741 - TCC System Stuck Off...Now What??
  145. homemade locating dowels - a possibility?
  146. Rear Valve Cover Leak!!
  147. Going from a 4.0 to a 4.6
  148. how many miles on your N*?
  149. Crank Position Sensor Replace Quick Question...
  150. 98 STS code P0404 (and P0300)
  151. Not Nearly As Hard As I Thought
  152. what to do about SO codes...
  153. overfilled tranny....
  154. OBD1 chip reprogramming?
  155. Hey Check Out What Im Doing....
  156. 95-6 transmission harness
  157. new headbolts
  158. Torque Converter Clutch Stuck...How to Fix??
  159. BS? "aftermarket Mass Air Sensor = improved hp, torque and mileage from your car"
  160. pulling engine, top or bottom???
  161. RANGER: Can't Identify Codes...
  162. 1996 1/8th mile times!
  163. '96 SDV Update...2 Codes...Help??
  164. Need a new alternator......
  165. Cranking but not starting.. fuel pump relay?
  166. EXP ID 83, 84, 140, 25 ??? Any Help?
  167. timesert kit for sale
  168. Factory Specs for Compression??
  169. torque wrench advice
  170. Stripped Oil Pan Bolt Hole
  171. Would you like some cheese and crackers with that Whine?
  172. Ready to rebuild-best source for tserts and bearings
  173. Stability Reduced? wut?
  174. Compression numbers for the North*
  175. Options to repair ONE engine block thread
  176. What ever happened to the supercarger for N*?
  177. Torquing of Rocker????
  178. Minor Problem with my 94 SLS
  179. Chip & Bored T/B ???
  180. Why with the Northstar 4.6?
  181. PCM reflash for 95
  182. Sooooo....
  183. cam torque
  184. Blwoin a little smoke..
  185. casting number ID
  186. DANG - Trouble Codes Question
  187. Need some help..abs troubles?
  188. I saw a smoking Deville
  189. PCM Question II
  190. Air intake and airflow
  191. Trans making noise in park and neutral
  192. water pump replacement
  193. Pcm?
  194. STS Engine Cut-Out
  195. 94 SLS 4.6 showing oil pressure
  196. Performance transmission
  197. Aftermarket air intake...
  198. TCS C1287/C1286 help please
  199. Pics..pics...pics.....pics........
  200. Computer Swap Ok?
  201. MIL's - Anyone tried them yet?
  202. Anyone ever done or heard about doing this?
  203. Stumped (P0307)
  204. pressure control circuit code 076
  205. 94 Eldorado 4.6 starting problem
  206. Anyone have sound clips of their exhaust?
  207. 98deville whole computer lit up
  208. TPS autolearn for 1995
  209. '96 DeVille...New Owner...Am I NUTS??
  210. Turbo Track Times
  211. Anyone with rough starts, loss of power..read this.
  212. G-tech pro times.
  213. That's what I call stopping a leak!
  214. Need Valve Body Torque Secs ASAP Please
  215. 98 deville x grandpa mobile
  216. Northstar Experts Please Stand Up.....
  217. Robert Benham
  218. Bleeding air out of cooling system
  219. I think I blew it up
  220. northstar rough accleration/idle
  221. ALBUNDY - can't PM you
  222. Gm top engine cleaner
  223. transmission interchange
  224. 96 deville N* cats question
  225. 94 SLS I seem to be on a losing streak!
  226. Premium vs. Regular
  227. coolant fans
  228. Overheat Part 3
  229. coolant loss
  230. 94 Eldorado Power Steering Fluid?
  231. Big Serts installation
  232. lifter noise?
  233. Some advice
  234. Overheat, Part 2
  235. 2000 STS MAP sensor voltage high?
  236. FRP Help!! ASAP!!
  237. Overheat!
  238. 1999 Eldorado won't start and left me stranded
  239. Anyone use "regular" plug wires in N*?
  240. Higher Stall Converter...
  241. i think i found a fuel control system.
  242. 94 SLS radiator hydraulic line
  243. K&N Intake...I want one!
  244. ABS wiring diagram
  245. What are the available Northstar aftermarket performance parts?
  246. Northstar Oil Leak
  247. Northstar in the 1997-1999 Deville.. questions.
  248. N* with nitrous.
  249. 5000 mile or wait for oil life trigger?
  250. Hi Flow Cat converter to go with Corsa Exhaust, which one?