: Northstar Engines and System Technical Discussion



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