: Northstar Engines and System Technical Discussion



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  1. "break in" period for new Northstar engine
  2. How many miles to you get per tankfull with your north*?
  3. Inserts
  4. GM now offers Premium Remanufactured 4.6L Northstar
  5. 00 to 03 engine in a 98 or 99 Seville.
  6. recommended shop in Toronto/Kitchener area
  7. After head gasket repair engine knocks
  8. transaxel fluid change
  9. N* Injectors and Fuel Pressure Regulator
  10. transaxel filter
  11. 2002 plentum leak
  12. Sts Running Terrible
  13. 96 Cylinder head on 93 block
  14. My car has 121k on it..should I change the trany fluid?
  15. 96 to 99 Eldo, Deville, and 96, 97 Seville Tuning
  16. valve noise at startup
  17. Breaking in a N*
  18. Invisible leak (coolant)
  19. Another seafoam thread
  20. Is there an easy way to change coolant?
  21. what is considered normal coolant temperture for a north*?
  22. please identify mystery black box 01 DTS
  23. Northstar Headgasket/Cracked Block/Bolt Failure? Please let us know
  24. Flushing Radiator
  25. Are there any worthwhile performance mods for the 98 north*?
  26. Was there more then one north* engine in 1998?
  27. Three (3) Codes on 1996 SLS: P1406, P0401, P0108
  28. Northstar Air Consumption.
  29. Eldo Gone....
  30. 4T80-E Transmission Fluid Change - DONE!
  31. P119 - Shorted Fuel Injector Problem
  32. How often do you WOT your north*?
  33. Before i go to beat the crap outta my car - WOT cleaning
  34. denso wires ???
  35. timeserts -so do these things prevent bad head gaskets
  36. Northstar 32 valve good for swap-out?
  37. '94 sts.. ignition coils, ignition control module?
  38. Car will not turn over....
  39. Has anyone ever got the P0741 code?
  40. Are there any good oil additives to add...
  41. I read a post about top tier gasoline....
  42. '95 Concours hard starting when it's cold outside
  43. my service engine soon light is on
  44. bad idea to use 87 octane?
  45. royal purple on a N*
  46. 03 n* and trans in a 99 SLS
  47. What gives the Northstar its "whirring" sound at idle?
  48. 96 sts starter problems, questions?
  49. How would i get a custom pcm?
  50. Beef up a 4.6L NStar?
  51. squeeky serpatine belt *new belt and tensioner*
  52. N* performance
  53. what year was it?
  54. opinions on high flow cats
  55. Gasoline Consumption question
  56. Looking for a Timesert Kit
  57. Engine Performance mods 95 STS
  58. Which oil i need for my 96 eldorado????
  59. How long should I let the N* warm up in the morning?
  60. Timesert Kits?
  61. 1997 SLS (overheating)
  62. Changing brakes on 96 SLS
  63. 2000 dts northstar reliabilty
  64. 2002 ETC Collector-mobile.
  65. What's the difference between the STS and SLS engines?
  66. Internal Mods For Northstar
  67. 99 to 00+ swap differences
  68. stuttering at idle
  69. 1999 Cadillac STS love/hate relationship...
  70. Free Northstar Engine
  71. Help the new guy make a good decision
  72. High Performance Head Gaskets?
  73. Parts ID
  74. Not run for 6 years, what would you do?
  75. 00 PCM on a 99 engine
  76. Blown Headgasket
  77. Aluminum Block porisity
  78. Its Alive
  79. oil life monitor problem
  80. P094 limp mode, no overdrive
  81. Valve Stem Seal Puller
  82. Homemade Valve Spring Compressor
  83. What Should I Pay For Eibachs?
  84. Trans Fluid/Filter change and Coolant drain/refill...
  85. Randomly Creeping High Idle Problem
  86. Stock spark plug wires, 7 or 8 mm?
  87. transmission oil looks dark :S
  88. how many cubic inches
  89. Northstar coil pack firing order
  90. '96 Sls: P1406: Egr
  91. GM Oil Consumption TSB, 2007
  92. Dexcool/Peak coolant
  93. noobie questions
  94. God a northstar sounds sexy, but does something sound odd
  95. Coolant leak...
  96. Northstar motor install
  97. overheating, waterpump? 2002 deville w/ 120k miles
  98. Transmission won't "kickdown" 1994 Eldorado
  99. Blocks cracking on final head torque?
  100. How to remove timeserts?
  101. crankshaft postion sensor
  102. '05 STS - Slipping Transmission at low MPH
  103. rear wheel drive conversion
  104. Cadillac Overheating Issues
  105. humming noise
  106. Clogged vacuum port to fuel pressure regulator
  107. thermostat starting to rise in strange way
  108. overheating , but ez fix?
  109. intermittent "hard start" when car at operating temp
  110. How to tell if block is timeserted?
  111. HELP ME!!!! What is the difference between ECON and Auto
  112. clogged cat = overheating?
  113. 2000-up coil pack crack
  114. 93 sts trans solenoids?
  115. Sealing off a blown head gasket
  116. Rear Main Seal
  117. Oil Life % vs. Reality
  118. Time out!!
  119. engines misses after teardown
  120. 93 STS Northstar won't start
  121. Motor build for sand rail
  122. What kind of gas mileage do you get with your Northstar?
  123. crank sensors
  124. 4.0 Northstar No Start PLEASE HELP!!!
  125. What Northstar do I have?
  126. 96 Eldorado ETC - Blown head gasket
  127. Radiator hoses
  128. headgasket pics
  129. Converter Size
  130. Cylinder Head Reconditioning
  131. 02 sts N* Engine knock
  132. MAF Issues
  133. Oil Pressure Issue - 2000 Cadillac DeVille
  134. Northstar mechanic in the Massachusetts??
  135. Need Help
  136. 93 sts misses and no 2-3 shift
  137. Good fresh tim-serted 94' SLS engine on ebay.
  138. Help, still overheating after headgasket job .
  139. Cooling fan motor bad?
  140. Roots style S/C for the northstar. Anytakers?
  141. front HVAC blower not working on 2000 deville
  142. 1995 STS won't start
  143. 94 4.6L SLS/STS Engine on Ebay
  144. oil level sensor
  145. Thought I had all the parts
  146. '99 Deville stalled and wont start
  147. 96 Deville stumbles on acceleration
  148. Spark Plug Gap
  149. P094 code
  150. 2001 Northstar 4.6 in 99 sts body??
  151. Short runner intake
  152. Bad Waterpump???
  153. Making a trip to fastchip
  154. Fan runs while car is shut off
  155. 94 Seville w/ 93 Engine & Trans (from Eldorado) Shift Problem
  156. Backfired while starting, now I have a miss!
  157. Octane Boosters
  158. Code Question
  159. sluggish n* in a 96 eldo
  160. 03 4.6 Loud engine knock caused by roller rockers
  161. I did the intake and exhaust and no difference
  162. looking at a scangauge 2 / question about pulling codes
  163. starter gives a single click
  164. PCM Data, PD42 Octane?
  165. Made the switch to Rotella...
  166. Crank seal replacement cost??
  167. Headlight problem!
  168. 99 STS blown head gasket. what to do??
  169. Turning off Injectors = Save fuel?
  170. A/C Question
  171. Two pricing question
  172. 1995 STS Performance ?
  173. I052 Code + Stalling + Instrument Panel Reset
  174. Oil pressure Sending Unit
  175. P/S pump leak
  176. Oil Leak
  177. "Low Refrigerant" & "A/C Compressor Off" B1348
  178. 95 Deville Concours performance
  179. '03 STS making turbine-like sound for 5-10 secs on cold start. Any ideas?
  180. new exhaust with #s
  181. Main bearing Torque Values? '94 4.6L SLS
  182. What tools needed to replace idle control motor on N*?
  183. Sooty Stalling 98 Deville
  184. New N* Owner - What to look for?
  185. Will the REAL Dexcool Please Stand Up?
  186. Rustling noise and loss of power
  187. Mass air flow sensor Help please
  188. oil cooler
  189. Engine just dies
  190. Swapping Engine To A Non-Northstar
  191. I have a little oil in the spark plug wells, anything to worry about?
  192. setting timing
  193. How about a Northstar Survival Guide
  194. what color is dexcool?
  195. Engine revving on its own
  196. Northstar remanufactured engine source
  197. "If it wasn't for bad luck....you know the rest
  198. Hitting 150k or more, is it realistic on my car?
  199. Time-Sert
  200. Bouncing Idle, new sparkplugs and oil after seafoam or TEC?
  201. front motor mount
  202. Is it Normal to Leak????
  203. Power steering leak
  204. 99 Northstar burning coolant somewhere!
  205. Data loging with performance monitoring and measuring devices
  206. Help With My 99' N* Hg Job
  207. Low oil pressure warning
  208. engine-trans bolts
  209. Valve Train Ticking
  210. What peformance chip is better for 02 dts?
  211. Wrong headbolts
  212. Changing HG, will heads be ok?
  213. N* Stock Internals
  214. Oil missing from pan
  215. 93-99 Dis ????
  216. So, i just talked to one of the engineers at GM that worked on the northstar
  217. 02 deville spark plug replacement
  218. Finding New Mechanic: Questions to Ask
  219. Myth!!!!! Octane 99 and prior VS 00+
  220. Interesting problem - highway stalling
  221. just installed alternator, NOW WHAT!
  222. How much horsepower in 1997 Professional Chassis (Limo)?
  223. A\C Question!!!!!!!!!!!!!!
  224. How to get out cylinder head alignment bushings???
  225. Tim Allens 400HP naturally asp. N*
  226. cracked engine block
  227. 1997 DeVille Head Gasket Repair
  228. Solid Motor Mount?
  229. lower motor mount
  230. low oil pressure / battery no charge on DIC
  231. '98 STS Camshaft
  232. 05 DTS Northstar fuel economy
  233. Leaking Head Gaskets & Extended Warranty
  234. p1375 icm 24x reference voltage too high and p1350 ignition control system
  235. 00 deville cylinder #4
  236. Northstar overheating causes
  237. locating dowels
  238. 00 deville P0300
  239. Changing spark plugs on a Northstar
  240. can't find anyone who knows the answer
  241. 94 sts strange issue
  242. 30,000 mile service
  243. 98 sts bogging and backfiring
  244. symptoms and cuases of headgasket
  245. 2007 Northstar VIN A PCM Pinouts
  246. Interesting Observation with Volant.
  247. Suggest new catorgory"Northstar Tuning"
  248. Question about Dexcool for the Northstar 4.6
  249. 99 STS in Distress
  250. p0300 Engine Misfire