: Northstar Engines and System Technical Discussion



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