: Northstar Engines and System Technical Discussion



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  1. 2000 & up Seville air intake resonator
  2. 2000 Deville Fuel Pressure Specs
  3. 2002 Deville rough idle
  4. 99 eldorado 02 sensors
  5. Oil Pressure Sending Unit - SRX
  6. P0308 #8 Misfire issue... Replaced a lot, still have issue
  7. 99 STS hard cold start. No codes, fpr tests ok and fuel is 44 psi running
  8. A method to remove Crankshaft bolt without locking the flywheel or using the starter.
  9. 2002 Deville AIR pump Vacuum line Routing
  10. 1999 Deville Headgasket - head job or total overhaul ?
  11. 2001 deville engine making kocking noise
  12. 2002 Deville Overheating after Thermostat replacement
  13. Water pump drive pulley
  14. Special tool for Northstar water pump drive pulley
  15. Reliability of 2005 and beyond Northstar-powered cars
  16. Harmonic Balancer Torque
  17. Need advice on who to do a Northstar head job in the Huntsville Alabama area
  18. NGK Spark plugs & coolant level message - 2003 Deville
  19. Get a Free set of Main Studs with Purchase of Sure Grip Cylinder Head Stud Kit
  20. Developed an engine whine... what is it?
  21. Please help with PCM issue on 1993 Allante
  22. limp mode..now misfire
  23. Water cooled alternator - what years/models ?
  24. O2 Sensors in a Hot Rod Set-up
  25. 2002 Northstar WOT, performance brakes, CORSA ?
  26. 1996 and later Northstar performance chips
  27. Magnaflows on a 2003 Deville
  28. socket down camshaft drive chain slot
  29. coolant drip middle front lower
  30. 2005 STS Camshaft Sensor Location? V8 4.6 engine
  31. Pcm issue or camshaft issue any help
  32. Rail / Injector Leak Deville 99
  33. Northstar chips, cold air intakes, and spark plugs
  34. coil on plug ignition modules
  35. Mystery Check Engine Light
  36. Only starts with starting fluid-Help
  37. 99 STS head gasket repair [ in car]
  38. Problem with 97 Eldorado. P 0300...
  39. 02 Cooling building back pressure. Purge line clear.
  40. 1998 STS coolant change
  41. Mystery Black Wire
  42. Oil pressure
  43. 98 deville, uses oil? but how
  44. What year is my Northstar motor, and what cars will it drop into?
  45. trouble with spark from coil packs
  46. Replace and Reprogram PCM 2001 DTS
  47. 1995 SLS - Poor idle quality
  48. Oil Pan Gasket and Permatex UltraGray placement
  49. 98 Deville, changing the coolant, sealant tabs?
  50. 2000 Deville Water Pump will Not Come Out
  51. Fuel pressure regulator
  52. 2003 Deville - exhaust steaming and coolant loss
  53. Can't remove Water Pump Drive pulley.. ever seen one that is stuck?
  54. Best Rear Main Seal Fix?
  55. Critique my coolant flush method
  56. Oil pressure light - 1998 Deville Northstar
  57. 1994 Eldorado thermostat replacement and coolant leak
  58. EGR Tubing
  59. '02 Seville was running fine, now it's not ?
  60. flex tube exhaust
  61. 01 Northstar Water in oil, high oil use, misses when cold.
  62. Coolant Leak Source? (pictures)
  63. When to reseal case halves?
  64. Look what I found in my engine!
  65. Puzzling Clattering Noise During Warm Startups
  66. HG's vs Pulled Threads
  67. Cat problems?
  68. Oil leaks on 1998 ElDorado
  69. 2000+ Intake Manifold on 1998 Northstar
  70. 2001 Deville - coolant boiling in reservoir
  71. Problem with my 1994 Eldorado engine - smoking
  72. code P 0171, P 0174 - solved
  73. Unable to communicate with the console cluster
  74. North Star Engine Disappointment (copy)
  75. SJ - API oil
  76. 97 ETC exhaust manifold fasterners.
  77. Fix the engine, (HG), replace the engine?
  78. Where does this go...?
  79. PCV Valve Elbow?
  80. Pics of my oil leaks
  81. combustion leak tester
  82. Anyone used Lucas Engine Stop Leak?
  83. Water pump issue, mostly? 1994 STS
  84. 98 Deville Water Pump Fail After Serpentine Belt Replaced
  85. Water Pump - Failing When Hot
  86. Oil Pan Leak?
  87. 2002 Deville misfire on Northstar
  88. I'm gonna do a block test today
  89. Car keeps overheating
  90. Service fuel system
  91. radiator cap # ?
  92. Northstar Loan-A-Tool Program, USA shipping on stud kits
  93. EGR Major Issues..help!
  94. 2000 Deville surging?
  95. 1998 STS crankshaft position sensors location
  96. Deville engine swaps and differences
  97. Water pump won't break
  98. New business pratices and standards coming into effect Apr 15/2014
  99. AIR pump on '99
  100. 1995 STS - multiple crank cold starts
  101. Pre-diagnosing HG issues?
  102. eldo running hot
  103. Which alternator? 94 Deville Concours
  104. My 1994 Deville 4.9 is starting to show some signs.
  105. 1999 deville - replaced water pump - running hot
  106. 2009 Buick Lucerne Headgasket
  107. The American V8 - Anatomy of a Hydrolock
  108. 2005 Deville oil pan seal leak
  109. Vacuum diagram
  110. 1997 STS - Long crank/start times - (Advice / Ideas)
  111. Lower crankcase reseal - 2005 Deville
  112. My sincerest apologies and also thanks -
  113. headbolt inserts
  114. Northstar and carbon cleaning
  115. Running but ............... 2001 Northstar
  116. 2000 DTS - no power
  117. To buy or not to buy.....1998 ESC
  118. 1996 DeVille flex plate replacement
  119. engine oil in intake manifold
  120. 2004 DTS Frustrations... misfires and SES
  121. 2000 SLS powertrain/ cradle removal
  122. 98 deville coolant smell?
  123. 02 N☆ Fuel Pressure
  124. Air intake upgrade - DTS Performance ?
  125. 2007 Engine Knock 4.6 Help
  126. The Caddy lives again - Life after the dreaded head leakage
  127. 1997 Deville - EGR remove & replace
  128. Northstar head bolt hole thread repair options
  129. Northstar Production Numbers 1993-2009
  130. 2000 STS - P 0300 - rough idle
  131. 2003 Seville EGR codes
  132. 2004 DHS - CMP location ?
  133. Mechinical buzzing noise from under hood ( 2002 Deville, 150,000)
  134. Blue devil and Norhtstar:
  135. Stalling issue - slow speeds - 1998 ETC
  136. Damaged throttle cable (1998 Deville)
  137. 2000 DTS - correct replacement engine ?
  138. My experience with the water crossover job
  139. Northstar Swap Question
  140. Interesting Listing........ pre-2000 Northstar and transmission
  141. 2001 Deville oil distribution manifold plate seal leak
  142. 1998 Deville has leak at water crossover (150,000 miles)
  143. 2003 Head Gasket Repair
  144. 2006 Northstar engine problems - Buick Lucerne
  145. Water pump? 1999 STS overheating
  146. Northstar swap into a 1987 Fiero GT - engines and differences
  147. Oil Filter Pre-fill
  148. The InFamous N* Oil Leak - Oil Manifold
  149. Engine miss - 1998 Deville
  150. Priming Northstar after total rebuild
  151. Which Rear Main Seal installer do I need for a 1999 DeVille?
  152. Alt amps too high?
  153. 2003 STS engine seized
  154. Cylinder damage question....extended idling
  155. Anyone use "cadillacheadgasketfix.com" in bellflower, ca. to rebuild their Northstar?
  156. My 2000 Deville is back to life
  157. Melted camshaft water pump drive pulley
  158. 2001 Deville N* Spark plug boots questions
  159. drove over curb in fog 96 cadi died and wont restart
  160. fuel injector removal
  161. 2000 head gasket/ insert differences
  162. Northstar overheating-Repair
  163. Head porting Northstar...
  164. 01 Seville runs rough, 0306 code intermittent
  165. Attention all Northstar engine owners - Carroll Cadillac studs
  166. Questions about pre 00 Northstar oil change and use of additives
  167. Pressure in expansion tank
  168. ran out of gas now my SES light turned on any help
  169. New Northstar Crate Engines
  170. very bad coolant leak
  171. High Idle question
  172. Flowmasters on a 2003 SLS
  173. Simple spark plug question - Northstar "tune up"
  174. Results posted - Christmas Draw - FREE STUD KIT!
  175. 2004 Deville rough idle
  176. 1996 Deville fuel injectors
  177. Cylinder head bolt replacement
  178. Northstar R&D-Bench Test Apparatus
  179. Hello Cadillac/Northstar owners
  180. 1996 Deville...... 4.6 Northstar trouble......lotsa trouble.
  181. P0300 Misfire - My problem and solution + more problems...
  182. Best Engine Mounts - 1993-1994 or the newer?
  183. Blown head gasket repair
  184. occassional stalling problem
  185. 05 Deville
  186. Northstar battery life expectation
  187. 2001 DTS Valve Clearance question
  188. Fuel Pump Longevity/Milage Expectations
  189. Torquing N* head
  190. 96' Northstar cranks, will not start
  191. 01 Deville Cylinder #1 misfire
  192. bucking and kicking
  193. Northstar sitting for 12 years...need new springs?
  194. 2005 Bonneville GXP Northstar jumped time
  195. 2001 ETC Intermittent High Idle
  196. 2001 DTS won't accelerate past 2K rpms after spark plug change
  197. Advice on NorthStar coils - both ignition types
  198. Another Shout Out to Jake!!
  199. Code P 0171 showing - 1999 Deville
  200. 2001 DTS - interference engine 4.6l and timing chain replacement ?
  201. Studded heads update
  202. 1999 STS coolant questions
  203. 2000 STS NS smoking under hood after WOT
  204. Governor in NorthStar V8?
  205. O2 sensor-bank 1 S1
  206. No spark
  207. Please help! 94 SLS water pump cover...
  208. Wherer do these parts go ???
  209. Sudden Increase in Oil Consumption 2003 DHS
  210. Crankshaft pulley wobble
  211. 2001 Deville. Can't start after reinstalling engine
  212. Head gaskets and Time-Serts
  213. Oil pump?
  214. Help find part
  215. Maximum valve lift 04-05 Northstar 4.6
  216. 96' Northstar coolant leak
  217. cooling fan relays
  218. Help - 1993 Eldorado needs new engine
  219. Head Bolt Threads - Bonneville Northstar
  220. DOHC theory, any new information?
  221. Compression Ring Treatment
  222. 300 Northstar Headgasket repairs completed
  223. Where do these go?
  224. New motor to replace the northstar
  225. Northstar Replacement
  226. 2001 Deville hesitates while accelerating
  227. Retirement from the physical repairs to focus on the stud kits-
  228. The Dreaded Northstar Leaking Head Gasket- Fix, Sell or Junk?
  229. Why Leaking Headgaskets
  230. Is it dangerous - cracked flexplate on a Northstar
  231. 2008 STS engin dont swing
  232. fuel pump suddenly stops
  233. Stumble and stall
  234. Valve cover gaskets
  235. On the road again!
  236. 2001 Deville flat or domed pistons
  237. Changing the water pump "Belt?
  238. 1998 STS - Dies at speed and won't restart sometimes.
  239. Is it safe to buy a Northstar now? I can't stop driving Cadillacs!
  240. Northstar size question
  241. Need mechanic - 1994 STS Northstar near Winnipeg
  242. Northstar overheating
  243. Interchangeability of VIN: 9 and VIN: Y transmissions?
  244. Northstar Commander 950 base Map - sand rail install
  245. overheating need help
  246. Just a head gasket failure?
  247. Northstar engine questions from Finland
  248. P 0171 and P 0174 code - 2004 Deville
  249. new generator-->ECM broken
  250. Disconnecting EGR