: Northstar Engines and System Technical Discussion



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