: Northstar Engines and System Technical Discussion



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  1. Engine code - EOP
  2. Type of engine?
  3. Turbo Charged STS Cadillac
  4. Northstar Cam specs
  5. How can I drive 1000 miles with a coolant leak?
  6. To Rebuild or not.
  7. Do you use dealer for Northstar repairs?
  8. How long do Northstar engines last?
  9. 4.6 northstar fuel pressure?
  10. 150 miles in limp home mode
  11. CKP Question for One of the Techs
  12. Any problems trying 20W-50 in a '97?
  13. New 95' STS owner with tech question
  14. tune up ,whats involved?
  15. Oh shoot...need help ASAP...:(
  16. Radiator Cooling Fans not running
  17. Ram Air! (Maybe)
  18. Engine runs a bit rough during cold winter starts
  19. "break in" period for new Northstar engine
  20. How many miles to you get per tankfull with your north*?
  21. Inserts
  22. GM now offers Premium Remanufactured 4.6L Northstar
  23. 00 to 03 engine in a 98 or 99 Seville.
  24. recommended shop in Toronto/Kitchener area
  25. After head gasket repair engine knocks
  26. transaxel fluid change
  27. N* Injectors and Fuel Pressure Regulator
  28. transaxel filter
  29. 2002 plentum leak
  30. Sts Running Terrible
  31. 96 Cylinder head on 93 block
  32. My car has 121k on it..should I change the trany fluid?
  33. 96 to 99 Eldo, Deville, and 96, 97 Seville Tuning
  34. valve noise at startup
  35. Breaking in a N*
  36. Invisible leak (coolant)
  37. Another seafoam thread
  38. Is there an easy way to change coolant?
  39. what is considered normal coolant temperture for a north*?
  40. please identify mystery black box 01 DTS
  41. Northstar Headgasket/Cracked Block/Bolt Failure? Please let us know
  42. Flushing Radiator
  43. Are there any worthwhile performance mods for the 98 north*?
  44. Was there more then one north* engine in 1998?
  45. Three (3) Codes on 1996 SLS: P1406, P0401, P0108
  46. Northstar Air Consumption.
  47. Eldo Gone....
  48. 4T80-E Transmission Fluid Change - DONE!
  49. P119 - Shorted Fuel Injector Problem
  50. How often do you WOT your north*?
  51. Before i go to beat the crap outta my car - WOT cleaning
  52. denso wires ???
  53. timeserts -so do these things prevent bad head gaskets
  54. Northstar 32 valve good for swap-out?
  55. '94 sts.. ignition coils, ignition control module?
  56. Car will not turn over....
  57. Has anyone ever got the P0741 code?
  58. Are there any good oil additives to add...
  59. I read a post about top tier gasoline....
  60. '95 Concours hard starting when it's cold outside
  61. my service engine soon light is on
  62. bad idea to use 87 octane?
  63. royal purple on a N*
  64. 03 n* and trans in a 99 SLS
  65. What gives the Northstar its "whirring" sound at idle?
  66. 96 sts starter problems, questions?
  67. How would i get a custom pcm?
  68. Beef up a 4.6L NStar?
  69. squeeky serpatine belt *new belt and tensioner*
  70. N* performance
  71. what year was it?
  72. opinions on high flow cats
  73. Gasoline Consumption question
  74. Looking for a Timesert Kit
  75. Engine Performance mods 95 STS
  76. Which oil i need for my 96 eldorado????
  77. How long should I let the N* warm up in the morning?
  78. Timesert Kits?
  79. 1997 SLS (overheating)
  80. Changing brakes on 96 SLS
  81. 2000 dts northstar reliabilty
  82. 2002 ETC Collector-mobile.
  83. What's the difference between the STS and SLS engines?
  84. Internal Mods For Northstar
  85. 99 to 00+ swap differences
  86. stuttering at idle
  87. 1999 Cadillac STS love/hate relationship...
  88. Free Northstar Engine
  89. Help the new guy make a good decision
  90. High Performance Head Gaskets?
  91. Parts ID
  92. Not run for 6 years, what would you do?
  93. 00 PCM on a 99 engine
  94. Blown Headgasket
  95. Aluminum Block porisity
  96. Its Alive
  97. oil life monitor problem
  98. P094 limp mode, no overdrive
  99. Valve Stem Seal Puller
  100. Homemade Valve Spring Compressor
  101. What Should I Pay For Eibachs?
  102. Trans Fluid/Filter change and Coolant drain/refill...
  103. Randomly Creeping High Idle Problem
  104. Stock spark plug wires, 7 or 8 mm?
  105. transmission oil looks dark :S
  106. how many cubic inches
  107. Northstar coil pack firing order
  108. '96 Sls: P1406: Egr
  109. GM Oil Consumption TSB, 2007
  110. Dexcool/Peak coolant
  111. noobie questions
  112. God a northstar sounds sexy, but does something sound odd
  113. Coolant leak...
  114. Northstar motor install
  115. overheating, waterpump? 2002 deville w/ 120k miles
  116. Transmission won't "kickdown" 1994 Eldorado
  117. Blocks cracking on final head torque?
  118. How to remove timeserts?
  119. crankshaft postion sensor
  120. '05 STS - Slipping Transmission at low MPH
  121. rear wheel drive conversion
  122. Cadillac Overheating Issues
  123. humming noise
  124. Clogged vacuum port to fuel pressure regulator
  125. thermostat starting to rise in strange way
  126. overheating , but ez fix?
  127. intermittent "hard start" when car at operating temp
  128. How to tell if block is timeserted?
  129. HELP ME!!!! What is the difference between ECON and Auto
  130. clogged cat = overheating?
  131. 2000-up coil pack crack
  132. 93 sts trans solenoids?
  133. Sealing off a blown head gasket
  134. Rear Main Seal
  135. Oil Life % vs. Reality
  136. Time out!!
  137. engines misses after teardown
  138. 93 STS Northstar won't start
  139. Motor build for sand rail
  140. What kind of gas mileage do you get with your Northstar?
  141. crank sensors
  142. 4.0 Northstar No Start PLEASE HELP!!!
  143. What Northstar do I have?
  144. 96 Eldorado ETC - Blown head gasket
  145. Radiator hoses
  146. headgasket pics
  147. Converter Size
  148. Cylinder Head Reconditioning
  149. 02 sts N* Engine knock
  150. MAF Issues
  151. Oil Pressure Issue - 2000 Cadillac DeVille
  152. Northstar mechanic in the Massachusetts??
  153. Need Help
  154. 93 sts misses and no 2-3 shift
  155. Good fresh tim-serted 94' SLS engine on ebay.
  156. Help, still overheating after headgasket job .
  157. Cooling fan motor bad?
  158. Roots style S/C for the northstar. Anytakers?
  159. front HVAC blower not working on 2000 deville
  160. 1995 STS won't start
  161. 94 4.6L SLS/STS Engine on Ebay
  162. oil level sensor
  163. Thought I had all the parts
  164. '99 Deville stalled and wont start
  165. 96 Deville stumbles on acceleration
  166. Spark Plug Gap
  167. P094 code
  168. 2001 Northstar 4.6 in 99 sts body??
  169. Short runner intake
  170. Bad Waterpump???
  171. Making a trip to fastchip
  172. Fan runs while car is shut off
  173. 94 Seville w/ 93 Engine & Trans (from Eldorado) Shift Problem
  174. Backfired while starting, now I have a miss!
  175. Octane Boosters
  176. Code Question
  177. sluggish n* in a 96 eldo
  178. 03 4.6 Loud engine knock caused by roller rockers
  179. I did the intake and exhaust and no difference
  180. looking at a scangauge 2 / question about pulling codes
  181. starter gives a single click
  182. PCM Data, PD42 Octane?
  183. Made the switch to Rotella...
  184. Crank seal replacement cost??
  185. Headlight problem!
  186. 99 STS blown head gasket. what to do??
  187. Turning off Injectors = Save fuel?
  188. A/C Question
  189. Two pricing question
  190. 1995 STS Performance ?
  191. I052 Code + Stalling + Instrument Panel Reset
  192. Oil pressure Sending Unit
  193. P/S pump leak
  194. Oil Leak
  195. "Low Refrigerant" & "A/C Compressor Off" B1348
  196. 95 Deville Concours performance
  197. '03 STS making turbine-like sound for 5-10 secs on cold start. Any ideas?
  198. new exhaust with #s
  199. Main bearing Torque Values? '94 4.6L SLS
  200. What tools needed to replace idle control motor on N*?
  201. Sooty Stalling 98 Deville
  202. New N* Owner - What to look for?
  203. Will the REAL Dexcool Please Stand Up?
  204. Rustling noise and loss of power
  205. Mass air flow sensor Help please
  206. oil cooler
  207. Engine just dies
  208. Swapping Engine To A Non-Northstar
  209. I have a little oil in the spark plug wells, anything to worry about?
  210. setting timing
  211. How about a Northstar Survival Guide
  212. what color is dexcool?
  213. Engine revving on its own
  214. Northstar remanufactured engine source
  215. "If it wasn't for bad luck....you know the rest
  216. Hitting 150k or more, is it realistic on my car?
  217. Time-Sert
  218. Bouncing Idle, new sparkplugs and oil after seafoam or TEC?
  219. front motor mount
  220. Is it Normal to Leak????
  221. Power steering leak
  222. 99 Northstar burning coolant somewhere!
  223. Data loging with performance monitoring and measuring devices
  224. Help With My 99' N* Hg Job
  225. Low oil pressure warning
  226. engine-trans bolts
  227. Valve Train Ticking
  228. What peformance chip is better for 02 dts?
  229. Wrong headbolts
  230. Changing HG, will heads be ok?
  231. N* Stock Internals
  232. Oil missing from pan
  233. 93-99 Dis ????
  234. So, i just talked to one of the engineers at GM that worked on the northstar
  235. 02 deville spark plug replacement
  236. Finding New Mechanic: Questions to Ask
  237. Myth!!!!! Octane 99 and prior VS 00+
  238. Interesting problem - highway stalling
  239. just installed alternator, NOW WHAT!
  240. How much horsepower in 1997 Professional Chassis (Limo)?
  241. A\C Question!!!!!!!!!!!!!!
  242. How to get out cylinder head alignment bushings???
  243. Tim Allens 400HP naturally asp. N*
  244. cracked engine block
  245. 1997 DeVille Head Gasket Repair
  246. Solid Motor Mount?
  247. lower motor mount
  248. low oil pressure / battery no charge on DIC
  249. '98 STS Camshaft
  250. 05 DTS Northstar fuel economy