: Northstar Engines and System Technical Discussion



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  1. Possible Applications for Northstar?
  2. Need help....PLZ!!
  3. so i got a few PCM codes
  4. GM's Veiw on Fuel and Oil Additives
  5. How do I Reset the Change Oil Message?
  6. so when i went to pull codes, it just said all
  7. T061 T083
  8. 97 Deville No Longer Starts
  9. help on my 99' seville sls
  10. Starting issue
  11. 97 SLS Motor Swap to an 03. Is it possible?
  12. head
  13. 99 SLS and Straight DexCool rather than 50/50
  14. No 1st Gear!!!
  15. Cheap Northstar in NH, 35,000 miles
  16. Steering Wheel puff of smoke
  17. on the tranny subject
  18. Talk about luck!!
  19. New motor runs a lil hotter?
  20. o2 sensor question
  21. What is HOT for a blown head gasket
  22. Need Help Info On Where To Buy Rebuilt Engine
  23. compatable parts
  24. NorthStar swap wiring harness
  25. product question
  26. How long do you think caddy will keep the N*?
  27. SS Fuel Rail Removal
  28. Would this be a wise choice? [CAI] on a 184,000 mile northstar
  29. E85 on northstar ???
  30. just got my Plates
  31. 1996 Cadillac DeVille NO CODES ????
  32. Engine code - EOP
  33. Type of engine?
  34. Turbo Charged STS Cadillac
  35. Northstar Cam specs
  36. How can I drive 1000 miles with a coolant leak?
  37. To Rebuild or not.
  38. Do you use dealer for Northstar repairs?
  39. How long do Northstar engines last?
  40. 4.6 northstar fuel pressure?
  41. 150 miles in limp home mode
  42. CKP Question for One of the Techs
  43. Any problems trying 20W-50 in a '97?
  44. New 95' STS owner with tech question
  45. tune up ,whats involved?
  46. Oh shoot...need help ASAP...:(
  47. Radiator Cooling Fans not running
  48. Ram Air! (Maybe)
  49. Engine runs a bit rough during cold winter starts
  50. "break in" period for new Northstar engine
  51. How many miles to you get per tankfull with your north*?
  52. Inserts
  53. GM now offers Premium Remanufactured 4.6L Northstar
  54. 00 to 03 engine in a 98 or 99 Seville.
  55. recommended shop in Toronto/Kitchener area
  56. After head gasket repair engine knocks
  57. transaxel fluid change
  58. N* Injectors and Fuel Pressure Regulator
  59. transaxel filter
  60. 2002 plentum leak
  61. Sts Running Terrible
  62. 96 Cylinder head on 93 block
  63. My car has 121k on it..should I change the trany fluid?
  64. 96 to 99 Eldo, Deville, and 96, 97 Seville Tuning
  65. valve noise at startup
  66. Breaking in a N*
  67. Invisible leak (coolant)
  68. Another seafoam thread
  69. Is there an easy way to change coolant?
  70. what is considered normal coolant temperture for a north*?
  71. please identify mystery black box 01 DTS
  72. Northstar Headgasket/Cracked Block/Bolt Failure? Please let us know
  73. Flushing Radiator
  74. Are there any worthwhile performance mods for the 98 north*?
  75. Was there more then one north* engine in 1998?
  76. Three (3) Codes on 1996 SLS: P1406, P0401, P0108
  77. Northstar Air Consumption.
  78. Eldo Gone....
  79. 4T80-E Transmission Fluid Change - DONE!
  80. P119 - Shorted Fuel Injector Problem
  81. How often do you WOT your north*?
  82. Before i go to beat the crap outta my car - WOT cleaning
  83. denso wires ???
  84. timeserts -so do these things prevent bad head gaskets
  85. Northstar 32 valve good for swap-out?
  86. '94 sts.. ignition coils, ignition control module?
  87. Car will not turn over....
  88. Has anyone ever got the P0741 code?
  89. Are there any good oil additives to add...
  90. I read a post about top tier gasoline....
  91. '95 Concours hard starting when it's cold outside
  92. my service engine soon light is on
  93. bad idea to use 87 octane?
  94. royal purple on a N*
  95. 03 n* and trans in a 99 SLS
  96. What gives the Northstar its "whirring" sound at idle?
  97. 96 sts starter problems, questions?
  98. How would i get a custom pcm?
  99. Beef up a 4.6L NStar?
  100. squeeky serpatine belt *new belt and tensioner*
  101. N* performance
  102. what year was it?
  103. opinions on high flow cats
  104. Gasoline Consumption question
  105. Looking for a Timesert Kit
  106. Engine Performance mods 95 STS
  107. Which oil i need for my 96 eldorado????
  108. How long should I let the N* warm up in the morning?
  109. Timesert Kits?
  110. 1997 SLS (overheating)
  111. Changing brakes on 96 SLS
  112. 2000 dts northstar reliabilty
  113. 2002 ETC Collector-mobile.
  114. What's the difference between the STS and SLS engines?
  115. Internal Mods For Northstar
  116. 99 to 00+ swap differences
  117. stuttering at idle
  118. 1999 Cadillac STS love/hate relationship...
  119. Free Northstar Engine
  120. Help the new guy make a good decision
  121. High Performance Head Gaskets?
  122. Parts ID
  123. Not run for 6 years, what would you do?
  124. 00 PCM on a 99 engine
  125. Blown Headgasket
  126. Aluminum Block porisity
  127. Its Alive
  128. oil life monitor problem
  129. P094 limp mode, no overdrive
  130. Valve Stem Seal Puller
  131. Homemade Valve Spring Compressor
  132. What Should I Pay For Eibachs?
  133. Trans Fluid/Filter change and Coolant drain/refill...
  134. Randomly Creeping High Idle Problem
  135. Stock spark plug wires, 7 or 8 mm?
  136. transmission oil looks dark :S
  137. how many cubic inches
  138. Northstar coil pack firing order
  139. '96 Sls: P1406: Egr
  140. GM Oil Consumption TSB, 2007
  141. Dexcool/Peak coolant
  142. noobie questions
  143. God a northstar sounds sexy, but does something sound odd
  144. Coolant leak...
  145. Northstar motor install
  146. overheating, waterpump? 2002 deville w/ 120k miles
  147. Transmission won't "kickdown" 1994 Eldorado
  148. Blocks cracking on final head torque?
  149. How to remove timeserts?
  150. crankshaft postion sensor
  151. '05 STS - Slipping Transmission at low MPH
  152. rear wheel drive conversion
  153. Cadillac Overheating Issues
  154. humming noise
  155. Clogged vacuum port to fuel pressure regulator
  156. thermostat starting to rise in strange way
  157. overheating , but ez fix?
  158. intermittent "hard start" when car at operating temp
  159. How to tell if block is timeserted?
  160. HELP ME!!!! What is the difference between ECON and Auto
  161. clogged cat = overheating?
  162. 2000-up coil pack crack
  163. 93 sts trans solenoids?
  164. Sealing off a blown head gasket
  165. Rear Main Seal
  166. Oil Life % vs. Reality
  167. Time out!!
  168. engines misses after teardown
  169. 93 STS Northstar won't start
  170. Motor build for sand rail
  171. What kind of gas mileage do you get with your Northstar?
  172. crank sensors
  173. 4.0 Northstar No Start PLEASE HELP!!!
  174. What Northstar do I have?
  175. 96 Eldorado ETC - Blown head gasket
  176. Radiator hoses
  177. headgasket pics
  178. Converter Size
  179. Cylinder Head Reconditioning
  180. 02 sts N* Engine knock
  181. MAF Issues
  182. Oil Pressure Issue - 2000 Cadillac DeVille
  183. Northstar mechanic in the Massachusetts??
  184. Need Help
  185. 93 sts misses and no 2-3 shift
  186. Good fresh tim-serted 94' SLS engine on ebay.
  187. Help, still overheating after headgasket job .
  188. Cooling fan motor bad?
  189. Roots style S/C for the northstar. Anytakers?
  190. front HVAC blower not working on 2000 deville
  191. 1995 STS won't start
  192. 94 4.6L SLS/STS Engine on Ebay
  193. oil level sensor
  194. Thought I had all the parts
  195. '99 Deville stalled and wont start
  196. 96 Deville stumbles on acceleration
  197. Spark Plug Gap
  198. P094 code
  199. 2001 Northstar 4.6 in 99 sts body??
  200. Short runner intake
  201. Bad Waterpump???
  202. Making a trip to fastchip
  203. Fan runs while car is shut off
  204. 94 Seville w/ 93 Engine & Trans (from Eldorado) Shift Problem
  205. Backfired while starting, now I have a miss!
  206. Octane Boosters
  207. Code Question
  208. sluggish n* in a 96 eldo
  209. 03 4.6 Loud engine knock caused by roller rockers
  210. I did the intake and exhaust and no difference
  211. looking at a scangauge 2 / question about pulling codes
  212. starter gives a single click
  213. PCM Data, PD42 Octane?
  214. Made the switch to Rotella...
  215. Crank seal replacement cost??
  216. Headlight problem!
  217. 99 STS blown head gasket. what to do??
  218. Turning off Injectors = Save fuel?
  219. A/C Question
  220. Two pricing question
  221. 1995 STS Performance ?
  222. I052 Code + Stalling + Instrument Panel Reset
  223. Oil pressure Sending Unit
  224. P/S pump leak
  225. Oil Leak
  226. "Low Refrigerant" & "A/C Compressor Off" B1348
  227. 95 Deville Concours performance
  228. '03 STS making turbine-like sound for 5-10 secs on cold start. Any ideas?
  229. new exhaust with #s
  230. Main bearing Torque Values? '94 4.6L SLS
  231. What tools needed to replace idle control motor on N*?
  232. Sooty Stalling 98 Deville
  233. New N* Owner - What to look for?
  234. Will the REAL Dexcool Please Stand Up?
  235. Rustling noise and loss of power
  236. Mass air flow sensor Help please
  237. oil cooler
  238. Engine just dies
  239. Swapping Engine To A Non-Northstar
  240. I have a little oil in the spark plug wells, anything to worry about?
  241. setting timing
  242. How about a Northstar Survival Guide
  243. what color is dexcool?
  244. Engine revving on its own
  245. Northstar remanufactured engine source
  246. "If it wasn't for bad luck....you know the rest
  247. Hitting 150k or more, is it realistic on my car?
  248. Time-Sert
  249. Bouncing Idle, new sparkplugs and oil after seafoam or TEC?
  250. front motor mount