: Northstar Engines and System Technical Discussion



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  1. GM now offers Premium Remanufactured 4.6L Northstar
  2. 00 to 03 engine in a 98 or 99 Seville.
  3. recommended shop in Toronto/Kitchener area
  4. After head gasket repair engine knocks
  5. transaxel fluid change
  6. N* Injectors and Fuel Pressure Regulator
  7. transaxel filter
  8. 2002 plentum leak
  9. Sts Running Terrible
  10. 96 Cylinder head on 93 block
  11. My car has 121k on it..should I change the trany fluid?
  12. 96 to 99 Eldo, Deville, and 96, 97 Seville Tuning
  13. valve noise at startup
  14. Breaking in a N*
  15. Invisible leak (coolant)
  16. Another seafoam thread
  17. Is there an easy way to change coolant?
  18. what is considered normal coolant temperture for a north*?
  19. please identify mystery black box 01 DTS
  20. Northstar Headgasket/Cracked Block/Bolt Failure? Please let us know
  21. Flushing Radiator
  22. Are there any worthwhile performance mods for the 98 north*?
  23. Was there more then one north* engine in 1998?
  24. Three (3) Codes on 1996 SLS: P1406, P0401, P0108
  25. Northstar Air Consumption.
  26. Eldo Gone....
  27. 4T80-E Transmission Fluid Change - DONE!
  28. P119 - Shorted Fuel Injector Problem
  29. How often do you WOT your north*?
  30. Before i go to beat the crap outta my car - WOT cleaning
  31. denso wires ???
  32. timeserts -so do these things prevent bad head gaskets
  33. Northstar 32 valve good for swap-out?
  34. '94 sts.. ignition coils, ignition control module?
  35. Car will not turn over....
  36. Has anyone ever got the P0741 code?
  37. Are there any good oil additives to add...
  38. I read a post about top tier gasoline....
  39. '95 Concours hard starting when it's cold outside
  40. my service engine soon light is on
  41. bad idea to use 87 octane?
  42. royal purple on a N*
  43. 03 n* and trans in a 99 SLS
  44. What gives the Northstar its "whirring" sound at idle?
  45. 96 sts starter problems, questions?
  46. How would i get a custom pcm?
  47. Beef up a 4.6L NStar?
  48. squeeky serpatine belt *new belt and tensioner*
  49. N* performance
  50. what year was it?
  51. opinions on high flow cats
  52. Gasoline Consumption question
  53. Looking for a Timesert Kit
  54. Engine Performance mods 95 STS
  55. Which oil i need for my 96 eldorado????
  56. How long should I let the N* warm up in the morning?
  57. Timesert Kits?
  58. 1997 SLS (overheating)
  59. Changing brakes on 96 SLS
  60. 2000 dts northstar reliabilty
  61. 2002 ETC Collector-mobile.
  62. What's the difference between the STS and SLS engines?
  63. Internal Mods For Northstar
  64. 99 to 00+ swap differences
  65. stuttering at idle
  66. 1999 Cadillac STS love/hate relationship...
  67. Free Northstar Engine
  68. Help the new guy make a good decision
  69. High Performance Head Gaskets?
  70. Parts ID
  71. Not run for 6 years, what would you do?
  72. 00 PCM on a 99 engine
  73. Blown Headgasket
  74. Aluminum Block porisity
  75. Its Alive
  76. oil life monitor problem
  77. P094 limp mode, no overdrive
  78. Valve Stem Seal Puller
  79. Homemade Valve Spring Compressor
  80. What Should I Pay For Eibachs?
  81. Trans Fluid/Filter change and Coolant drain/refill...
  82. Randomly Creeping High Idle Problem
  83. Stock spark plug wires, 7 or 8 mm?
  84. transmission oil looks dark :S
  85. how many cubic inches
  86. Northstar coil pack firing order
  87. '96 Sls: P1406: Egr
  88. GM Oil Consumption TSB, 2007
  89. Dexcool/Peak coolant
  90. noobie questions
  91. God a northstar sounds sexy, but does something sound odd
  92. Coolant leak...
  93. Northstar motor install
  94. overheating, waterpump? 2002 deville w/ 120k miles
  95. Transmission won't "kickdown" 1994 Eldorado
  96. Blocks cracking on final head torque?
  97. How to remove timeserts?
  98. crankshaft postion sensor
  99. '05 STS - Slipping Transmission at low MPH
  100. rear wheel drive conversion
  101. Cadillac Overheating Issues
  102. humming noise
  103. Clogged vacuum port to fuel pressure regulator
  104. thermostat starting to rise in strange way
  105. overheating , but ez fix?
  106. intermittent "hard start" when car at operating temp
  107. How to tell if block is timeserted?
  108. HELP ME!!!! What is the difference between ECON and Auto
  109. clogged cat = overheating?
  110. 2000-up coil pack crack
  111. 93 sts trans solenoids?
  112. Sealing off a blown head gasket
  113. Rear Main Seal
  114. Oil Life % vs. Reality
  115. Time out!!
  116. engines misses after teardown
  117. 93 STS Northstar won't start
  118. Motor build for sand rail
  119. What kind of gas mileage do you get with your Northstar?
  120. crank sensors
  121. 4.0 Northstar No Start PLEASE HELP!!!
  122. What Northstar do I have?
  123. 96 Eldorado ETC - Blown head gasket
  124. Radiator hoses
  125. headgasket pics
  126. Converter Size
  127. Cylinder Head Reconditioning
  128. 02 sts N* Engine knock
  129. MAF Issues
  130. Oil Pressure Issue - 2000 Cadillac DeVille
  131. Northstar mechanic in the Massachusetts??
  132. Need Help
  133. 93 sts misses and no 2-3 shift
  134. Good fresh tim-serted 94' SLS engine on ebay.
  135. Help, still overheating after headgasket job .
  136. Cooling fan motor bad?
  137. Roots style S/C for the northstar. Anytakers?
  138. front HVAC blower not working on 2000 deville
  139. 1995 STS won't start
  140. 94 4.6L SLS/STS Engine on Ebay
  141. oil level sensor
  142. Thought I had all the parts
  143. '99 Deville stalled and wont start
  144. 96 Deville stumbles on acceleration
  145. Spark Plug Gap
  146. P094 code
  147. 2001 Northstar 4.6 in 99 sts body??
  148. Short runner intake
  149. Bad Waterpump???
  150. Making a trip to fastchip
  151. Fan runs while car is shut off
  152. 94 Seville w/ 93 Engine & Trans (from Eldorado) Shift Problem
  153. Backfired while starting, now I have a miss!
  154. Octane Boosters
  155. Code Question
  156. sluggish n* in a 96 eldo
  157. 03 4.6 Loud engine knock caused by roller rockers
  158. I did the intake and exhaust and no difference
  159. looking at a scangauge 2 / question about pulling codes
  160. starter gives a single click
  161. PCM Data, PD42 Octane?
  162. Made the switch to Rotella...
  163. Crank seal replacement cost??
  164. Headlight problem!
  165. 99 STS blown head gasket. what to do??
  166. Turning off Injectors = Save fuel?
  167. A/C Question
  168. Two pricing question
  169. 1995 STS Performance ?
  170. I052 Code + Stalling + Instrument Panel Reset
  171. Oil pressure Sending Unit
  172. P/S pump leak
  173. Oil Leak
  174. "Low Refrigerant" & "A/C Compressor Off" B1348
  175. 95 Deville Concours performance
  176. '03 STS making turbine-like sound for 5-10 secs on cold start. Any ideas?
  177. new exhaust with #s
  178. Main bearing Torque Values? '94 4.6L SLS
  179. What tools needed to replace idle control motor on N*?
  180. Sooty Stalling 98 Deville
  181. New N* Owner - What to look for?
  182. Will the REAL Dexcool Please Stand Up?
  183. Rustling noise and loss of power
  184. Mass air flow sensor Help please
  185. oil cooler
  186. Engine just dies
  187. Swapping Engine To A Non-Northstar
  188. I have a little oil in the spark plug wells, anything to worry about?
  189. setting timing
  190. How about a Northstar Survival Guide
  191. what color is dexcool?
  192. Engine revving on its own
  193. Northstar remanufactured engine source
  194. "If it wasn't for bad luck....you know the rest
  195. Hitting 150k or more, is it realistic on my car?
  196. Time-Sert
  197. Bouncing Idle, new sparkplugs and oil after seafoam or TEC?
  198. front motor mount
  199. Is it Normal to Leak????
  200. Power steering leak
  201. 99 Northstar burning coolant somewhere!
  202. Data loging with performance monitoring and measuring devices
  203. Help With My 99' N* Hg Job
  204. Low oil pressure warning
  205. engine-trans bolts
  206. Valve Train Ticking
  207. What peformance chip is better for 02 dts?
  208. Wrong headbolts
  209. Changing HG, will heads be ok?
  210. N* Stock Internals
  211. Oil missing from pan
  212. 93-99 Dis ????
  213. So, i just talked to one of the engineers at GM that worked on the northstar
  214. 02 deville spark plug replacement
  215. Finding New Mechanic: Questions to Ask
  216. Myth!!!!! Octane 99 and prior VS 00+
  217. Interesting problem - highway stalling
  218. just installed alternator, NOW WHAT!
  219. How much horsepower in 1997 Professional Chassis (Limo)?
  220. A\C Question!!!!!!!!!!!!!!
  221. How to get out cylinder head alignment bushings???
  222. Tim Allens 400HP naturally asp. N*
  223. cracked engine block
  224. 1997 DeVille Head Gasket Repair
  225. Solid Motor Mount?
  226. lower motor mount
  227. low oil pressure / battery no charge on DIC
  228. '98 STS Camshaft
  229. 05 DTS Northstar fuel economy
  230. Leaking Head Gaskets & Extended Warranty
  231. p1375 icm 24x reference voltage too high and p1350 ignition control system
  232. 00 deville cylinder #4
  233. Northstar overheating causes
  234. locating dowels
  235. 00 deville P0300
  236. Changing spark plugs on a Northstar
  237. can't find anyone who knows the answer
  238. 94 sts strange issue
  239. 30,000 mile service
  240. 98 sts bogging and backfiring
  241. symptoms and cuases of headgasket
  242. 2007 Northstar VIN A PCM Pinouts
  243. Interesting Observation with Volant.
  244. Suggest new catorgory"Northstar Tuning"
  245. Question about Dexcool for the Northstar 4.6
  246. 99 STS in Distress
  247. p0300 Engine Misfire
  248. Need Some Feedback
  249. P0171 and P0174 codes: Intake leak?
  250. TC0073 ???? I have searched with not a REAL answer