: Northstar Engines and System Technical Discussion



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  1. A method to remove Crankshaft bolt without locking the flywheel or using the starter.
  2. 2002 Deville AIR pump Vacuum line Routing
  3. 1999 Deville Headgasket - head job or total overhaul ?
  4. 2001 deville engine making kocking noise
  5. 2002 Deville Overheating after Thermostat replacement
  6. Water pump drive pulley
  7. Special tool for Northstar water pump drive pulley
  8. Reliability of 2005 and beyond Northstar-powered cars
  9. Harmonic Balancer Torque
  10. Need advice on who to do a Northstar head job in the Huntsville Alabama area
  11. NGK Spark plugs & coolant level message - 2003 Deville
  12. Get a Free set of Main Studs with Purchase of Sure Grip Cylinder Head Stud Kit
  13. Developed an engine whine... what is it?
  14. Please help with PCM issue on 1993 Allante
  15. limp mode..now misfire
  16. Water cooled alternator - what years/models ?
  17. O2 Sensors in a Hot Rod Set-up
  18. 2002 Northstar WOT, performance brakes, CORSA ?
  19. 1996 and later Northstar performance chips
  20. Magnaflows on a 2003 Deville
  21. socket down camshaft drive chain slot
  22. coolant drip middle front lower
  23. 2005 STS Camshaft Sensor Location? V8 4.6 engine
  24. Pcm issue or camshaft issue any help
  25. Rail / Injector Leak Deville 99
  26. Northstar chips, cold air intakes, and spark plugs
  27. coil on plug ignition modules
  28. Mystery Check Engine Light
  29. Only starts with starting fluid - '97 SLS
  30. 99 STS head gasket repair [ in car]
  31. Problem with 97 Eldorado. P 0300...
  32. 02 Cooling building back pressure. Purge line clear.
  33. 1998 STS coolant change
  34. Mystery Black Wire
  35. Oil pressure
  36. 98 deville, uses oil? but how
  37. What year is my Northstar motor, and what cars will it drop into?
  38. trouble with spark from coil packs
  39. Replace and Reprogram PCM 2001 DTS
  40. 1995 SLS - Poor idle quality
  41. Oil Pan Gasket and Permatex UltraGray placement
  42. 98 Deville, changing the coolant, sealant tabs?
  43. 2000 series Northstar water pump will not come out
  44. Fuel pressure regulator
  45. 2003 Deville - exhaust steaming and coolant loss
  46. Can't remove Water Pump Drive pulley.. ever seen one that is stuck?
  47. Best Rear Main Seal Fix?
  48. Critique my coolant flush method
  49. Oil pressure light - 1998 Deville Northstar
  50. 1994 Eldorado thermostat replacement and coolant leak
  51. EGR Tubing
  52. '02 Seville was running fine, now it's not ?
  53. flex tube exhaust
  54. 01 Northstar Water in oil, high oil use, misses when cold.
  55. Coolant Leak Source? (pictures)
  56. When to reseal case halves?
  57. Look what I found in my engine!
  58. Puzzling Clattering Noise During Warm Startups
  59. HG's vs Pulled Threads
  60. Cat problems?
  61. Oil leaks on 1998 ElDorado
  62. 2000+ Intake Manifold on 1998 Northstar
  63. 2001 Deville - coolant boiling in reservoir
  64. Problem with my 1994 Eldorado engine - smoking
  65. code P 0171, P 0174 - solved
  66. Unable to communicate with the console cluster
  67. North Star Engine Disappointment (copy)
  68. SJ - API oil
  69. 97 ETC exhaust manifold fasterners.
  70. Fix the engine, (HG), replace the engine?
  71. Where does this go...?
  72. PCV Valve Elbow?
  73. Pics of my oil leaks
  74. combustion leak tester
  75. Anyone used Lucas Engine Stop Leak?
  76. Water pump issue, mostly? 1994 STS
  77. 98 Deville Water Pump Fail After Serpentine Belt Replaced
  78. Water Pump - Failing When Hot
  79. Oil Pan Leak?
  80. 2002 Deville misfire on Northstar
  81. I'm gonna do a block test today
  82. Car keeps overheating
  83. Service fuel system
  84. radiator cap # ?
  85. Northstar Loan-A-Tool Program, USA shipping on stud kits
  86. EGR Major Issues..help!
  87. 2000 Deville surging?
  88. 1998 STS crankshaft position sensors location
  89. Deville engine swaps and differences
  90. Water pump won't break
  91. New business pratices and standards coming into effect Apr 15/2014
  92. AIR pump on '99
  93. 1995 STS - multiple crank cold starts
  94. Pre-diagnosing HG issues?
  95. eldo running hot
  96. Which alternator? 94 Deville Concours
  97. My 1994 Deville 4.9 is starting to show some signs.
  98. 1999 deville - replaced water pump - running hot
  99. 2009 Buick Lucerne Headgasket
  100. The American V8 - Anatomy of a Hydrolock
  101. 2005 Deville oil pan seal leak
  102. Vacuum diagram
  103. 1997 STS - Long crank/start times - (Advice / Ideas)
  104. Lower crankcase reseal - 2005 Deville
  105. My sincerest apologies and also thanks -
  106. headbolt inserts
  107. Northstar and carbon cleaning
  108. Running but ............... 2001 Northstar
  109. 2000 DTS - no power
  110. To buy or not to buy.....1998 ESC
  111. 1996 DeVille flex plate replacement
  112. engine oil in intake manifold
  113. 2004 DTS Frustrations... misfires and SES
  114. 2000 SLS powertrain/ cradle removal
  115. 98 deville coolant smell?
  116. 02 N☆ Fuel Pressure
  117. Air intake upgrade - DTS Performance ?
  118. 2007 Engine Knock 4.6 Help
  119. The Caddy lives again - Life after the dreaded head leakage
  120. 1997 Deville - EGR remove & replace
  121. Northstar head bolt hole thread repair options
  122. Northstar Production Numbers 1993-2009
  123. 2000 STS - P 0300 - rough idle
  124. 2003 Seville EGR codes
  125. 2004 DHS - CMP location ?
  126. Mechinical buzzing noise from under hood ( 2002 Deville, 150,000)
  127. Blue devil and Norhtstar:
  128. Stalling issue - slow speeds - 1998 ETC
  129. Damaged throttle cable (1998 Deville)
  130. 2000 DTS - correct replacement engine ?
  131. My experience with the water crossover job
  132. Northstar Swap Question
  133. Interesting Listing........ pre-2000 Northstar and transmission
  134. 2001 Deville oil distribution manifold plate seal leak
  135. 1998 Deville has leak at water crossover (150,000 miles)
  136. 2003 Head Gasket Repair
  137. 2006 Northstar engine problems - Buick Lucerne
  138. Water pump? 1999 STS overheating
  139. Northstar swap into a 1987 Fiero GT - engines and differences
  140. Oil Filter Pre-fill
  141. The InFamous N* Oil Leak - Oil Manifold
  142. Engine miss - 1998 Deville
  143. Priming Northstar after total rebuild
  144. Which Rear Main Seal installer do I need for a 1999 DeVille?
  145. Alt amps too high?
  146. 2003 STS engine seized
  147. Cylinder damage question....extended idling
  148. Anyone use "cadillacheadgasketfix.com" in bellflower, ca. to rebuild their Northstar?
  149. My 2000 Deville is back to life
  150. Melted camshaft water pump drive pulley
  151. 2001 Deville N* Spark plug boots questions
  152. drove over curb in fog 96 cadi died and wont restart
  153. fuel injector removal
  154. 2000 head gasket/ insert differences
  155. Northstar overheating-Repair
  156. Head porting Northstar...
  157. 01 Seville runs rough, 0306 code intermittent
  158. Attention all Northstar engine owners - Carroll Cadillac studs
  159. Questions about pre 00 Northstar oil change and use of additives
  160. Pressure in expansion tank
  161. ran out of gas now my SES light turned on any help
  162. New Northstar Crate Engines
  163. very bad coolant leak
  164. High Idle question
  165. Flowmasters on a 2003 SLS
  166. Simple spark plug question - Northstar "tune up"
  167. Results posted - Christmas Draw - FREE STUD KIT!
  168. 2004 Deville rough idle
  169. 1996 Deville fuel injectors
  170. Cylinder head bolt replacement
  171. Northstar R&D-Bench Test Apparatus
  172. Hello Cadillac/Northstar owners
  173. 1996 Deville...... 4.6 Northstar trouble......lotsa trouble.
  174. P0300 Misfire - My problem and solution + more problems...
  175. Best Engine Mounts - 1993-1994 or the newer?
  176. Blown head gasket repair
  177. occassional stalling problem
  178. 05 Deville
  179. Northstar battery life expectation
  180. 2001 DTS Valve Clearance question
  181. Fuel Pump Longevity/Milage Expectations
  182. Torquing N* head
  183. 96' Northstar cranks, will not start
  184. 01 Deville Cylinder #1 misfire
  185. bucking and kicking
  186. Northstar sitting for 12 years...need new springs?
  187. 2005 Bonneville GXP Northstar jumped time
  188. 2001 ETC Intermittent High Idle
  189. 2001 DTS won't accelerate past 2K rpms after spark plug change
  190. Advice on NorthStar coils - both ignition types
  191. Another Shout Out to Jake!!
  192. Code P 0171 showing - 1999 Deville
  193. 2001 DTS - interference engine 4.6l and timing chain replacement ?
  194. Studded heads update
  195. 1999 STS coolant questions
  196. 2000 STS NS smoking under hood after WOT
  197. Governor in NorthStar V8?
  198. O2 sensor-bank 1 S1
  199. No spark
  200. Please help! 94 SLS water pump cover...
  201. Wherer do these parts go ???
  202. Sudden Increase in Oil Consumption 2003 DHS
  203. Crankshaft pulley wobble
  204. 2001 Deville. Can't start after reinstalling engine
  205. Head gaskets and Time-Serts
  206. Oil pump?
  207. Help find part
  208. Maximum valve lift 04-05 Northstar 4.6
  209. 96' Northstar coolant leak
  210. cooling fan relays
  211. Help - 1993 Eldorado needs new engine
  212. Head Bolt Threads - Bonneville Northstar
  213. DOHC theory, any new information?
  214. Compression Ring Treatment
  215. Where do these go?
  216. New motor to replace the northstar
  217. Northstar Replacement
  218. 2001 Deville hesitates while accelerating
  219. Retirement from the physical repairs to focus on the stud kits-
  220. The Dreaded Northstar Leaking Head Gasket- Fix, Sell or Junk?
  221. Why Leaking Headgaskets
  222. Is it dangerous - cracked flexplate on a Northstar
  223. 2008 STS engin dont swing
  224. fuel pump suddenly stops
  225. Stumble and stall
  226. Valve cover gaskets
  227. On the road again!
  228. 2001 Deville flat or domed pistons
  229. Changing the water pump "Belt?
  230. 1998 STS - Dies at speed and won't restart sometimes.
  231. Is it safe to buy a Northstar now? I can't stop driving Cadillacs!
  232. Northstar size question
  233. Need mechanic - 1994 STS Northstar near Winnipeg
  234. Northstar overheating
  235. Interchangeability of VIN: 9 and VIN: Y transmissions?
  236. Northstar Commander 950 base Map - sand rail install
  237. overheating need help
  238. Just a head gasket failure?
  239. Northstar engine questions from Finland
  240. P 0171 and P 0174 code - 2004 Deville
  241. new generator-->ECM broken
  242. Disconnecting EGR
  243. water crossover
  244. mid case reseal tsb
  245. 4.6 N* Cylinder walls
  246. Replacing the alternator on 97 Deville Concours
  247. Ready to stud another northstar
  248. Heli-Coil removal?
  249. Northstar Performance
  250. Wanted to clean EGR but what have those engineers done now