: Northstar Engines and System Technical Discussion



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  1. New business pratices and standards coming into effect Apr 15/2014
  2. AIR pump on '99
  3. 1995 STS - multiple crank cold starts
  4. Pre-diagnosing HG issues?
  5. eldo running hot
  6. Which alternator? 94 Deville Concours
  7. My 1994 Deville 4.9 is starting to show some signs.
  8. 1999 deville - replaced water pump - running hot
  9. 2009 Buick Lucerne Headgasket
  10. The American V8 - Anatomy of a Hydrolock
  11. 2005 Deville oil pan seal leak
  12. Vacuum diagram
  13. 1997 STS - Long crank/start times - (Advice / Ideas)
  14. Lower crankcase reseal - 2005 Deville
  15. My sincerest apologies and also thanks -
  16. headbolt inserts
  17. Northstar and carbon cleaning
  18. Running but ............... 2001 Northstar
  19. 2000 DTS - no power
  20. To buy or not to buy.....1998 ESC
  21. 1996 DeVille flex plate replacement
  22. engine oil in intake manifold
  23. 2004 DTS Frustrations... misfires and SES
  24. 2000 SLS powertrain/ cradle removal
  25. 98 deville coolant smell?
  26. 02 N☆ Fuel Pressure
  27. Air intake upgrade - DTS Performance ?
  28. 2007 Engine Knock 4.6 Help
  29. The Caddy lives again - Life after the dreaded head leakage
  30. 1997 Deville - EGR remove & replace
  31. Northstar head bolt hole thread repair options
  32. Northstar Production Numbers 1993-2009
  33. 2000 STS - P 0300 - rough idle
  34. 2003 Seville EGR codes
  35. 2004 DHS - CMP location ?
  36. Mechinical buzzing noise from under hood ( 2002 Deville, 150,000)
  37. Blue devil and Norhtstar:
  38. Stalling issue - slow speeds - 1998 ETC
  39. Damaged throttle cable (1998 Deville)
  40. 2000 DTS - correct replacement engine ?
  41. My experience with the water crossover job
  42. Northstar Swap Question
  43. Interesting Listing........ pre-2000 Northstar and transmission
  44. 2001 Deville oil distribution manifold plate seal leak
  45. 1998 Deville has leak at water crossover (150,000 miles)
  46. 2003 Head Gasket Repair
  47. 2006 Northstar engine problems - Buick Lucerne
  48. Water pump? 1999 STS overheating
  49. Northstar swap into a 1987 Fiero GT - engines and differences
  50. Oil Filter Pre-fill
  51. The InFamous N* Oil Leak - Oil Manifold
  52. Engine miss - 1998 Deville
  53. Priming Northstar after total rebuild
  54. Which Rear Main Seal installer do I need for a 1999 DeVille?
  55. Alt amps too high?
  56. 2003 STS engine seized
  57. Cylinder damage question....extended idling
  58. Anyone use "cadillacheadgasketfix.com" in bellflower, ca. to rebuild their Northstar?
  59. My 2000 Deville is back to life
  60. Melted camshaft water pump drive pulley
  61. 2001 Deville N* Spark plug boots questions
  62. drove over curb in fog 96 cadi died and wont restart
  63. fuel injector removal
  64. 2000 head gasket/ insert differences
  65. Northstar overheating-Repair
  66. Head porting Northstar...
  67. 01 Seville runs rough, 0306 code intermittent
  68. Attention all Northstar engine owners - Carroll Cadillac studs
  69. Questions about pre 00 Northstar oil change and use of additives
  70. Pressure in expansion tank
  71. ran out of gas now my SES light turned on any help
  72. New Northstar Crate Engines
  73. very bad coolant leak
  74. High Idle question
  75. Flowmasters on a 2003 SLS
  76. Simple spark plug question - Northstar "tune up"
  77. Results posted - Christmas Draw - FREE STUD KIT!
  78. 2004 Deville rough idle
  79. 1996 Deville fuel injectors
  80. Cylinder head bolt replacement
  81. Northstar R&D-Bench Test Apparatus
  82. Hello Cadillac/Northstar owners
  83. 1996 Deville...... 4.6 Northstar trouble......lotsa trouble.
  84. P0300 Misfire - My problem and solution + more problems...
  85. Best Engine Mounts - 1993-1994 or the newer?
  86. Blown head gasket repair
  87. occassional stalling problem
  88. 05 Deville
  89. Northstar battery life expectation
  90. 2001 DTS Valve Clearance question
  91. Fuel Pump Longevity/Milage Expectations
  92. Torquing N* head
  93. 96' Northstar cranks, will not start
  94. 01 Deville Cylinder #1 misfire
  95. bucking and kicking
  96. Northstar sitting for 12 years...need new springs?
  97. 2005 Bonneville GXP Northstar jumped time
  98. 2001 ETC Intermittent High Idle
  99. 2001 DTS won't accelerate past 2K rpms after spark plug change
  100. Advice on NorthStar coils - both ignition types
  101. Another Shout Out to Jake!!
  102. Code P 0171 showing - 1999 Deville
  103. 2001 DTS - interference engine 4.6l and timing chain replacement ?
  104. Studded heads update
  105. 1999 STS coolant questions
  106. 2000 STS NS smoking under hood after WOT
  107. Governor in NorthStar V8?
  108. O2 sensor-bank 1 S1
  109. No spark
  110. Please help! 94 SLS water pump cover...
  111. Wherer do these parts go ???
  112. Sudden Increase in Oil Consumption 2003 DHS
  113. Crankshaft pulley wobble
  114. 2001 Deville. Can't start after reinstalling engine
  115. Head gaskets and Time-Serts
  116. Oil pump?
  117. Help find part
  118. Maximum valve lift 04-05 Northstar 4.6
  119. 96' Northstar coolant leak
  120. cooling fan relays
  121. Help - 1993 Eldorado needs new engine
  122. Head Bolt Threads - Bonneville Northstar
  123. DOHC theory, any new information?
  124. Compression Ring Treatment
  125. Where do these go?
  126. New motor to replace the northstar
  127. Northstar Replacement
  128. 2001 Deville hesitates while accelerating
  129. Retirement from the physical repairs to focus on the stud kits-
  130. The Dreaded Northstar Leaking Head Gasket- Fix, Sell or Junk?
  131. Why Leaking Headgaskets
  132. Is it dangerous - cracked flexplate on a Northstar
  133. 2008 STS engin dont swing
  134. fuel pump suddenly stops
  135. Stumble and stall
  136. Valve cover gaskets
  137. On the road again!
  138. 2001 Deville flat or domed pistons
  139. Changing the water pump "Belt?
  140. 1998 STS - Dies at speed and won't restart sometimes.
  141. Is it safe to buy a Northstar now? I can't stop driving Cadillacs!
  142. Northstar size question
  143. Need mechanic - 1994 STS Northstar near Winnipeg
  144. Northstar overheating
  145. Interchangeability of VIN: 9 and VIN: Y transmissions?
  146. Northstar Commander 950 base Map - sand rail install
  147. overheating need help
  148. Just a head gasket failure?
  149. Northstar engine questions from Finland
  150. P 0171 and P 0174 code - 2004 Deville
  151. new generator-->ECM broken
  152. Disconnecting EGR
  153. water crossover
  154. mid case reseal tsb
  155. 4.6 N* Cylinder walls
  156. Replacing the alternator on 97 Deville Concours
  157. Ready to stud another northstar
  158. Heli-Coil removal?
  159. Northstar Performance
  160. Wanted to clean EGR but what have those engineers done now
  161. 99 N* rebuilt and burning lots of oil
  162. Northstar into Chevy Beretta swap
  163. 2001 Deville overheating... block test OK
  164. low oil pressure
  165. Pros & Cons Cadillac 4.6 vs Ford 4.6 (eg lincoln mark viii and others)
  166. Codes P0171, P0174 and P1258 come up on 1997 Deville
  167. Coil pack
  168. Eastern Massachusetts Cadillac shops?
  169. voltage question
  170. Bouncing Idles - 1995 SLS Northstar
  171. 2000 STS question
  172. Northstar maintenance requirements - 2005 Deville
  173. Brand New 1993-1994 Northstar Engine - Oil Leak Modified or Not
  174. Hard Starting Warm - if not Pedal to the Metal
  175. DHS 2000 won't start after changing CranKshaft and CaMshaft Position Sensors
  176. 1996 Deville over heats when ac is on
  177. HG question - 1997 Eldorado, 127000 miles
  178. need help
  179. Now what do I do? Northstar block casting porosity
  180. Coolant all over top of engine?
  181. 97 SLS Overheating - I've checked everything and need ideas
  182. 03 Deville hard idle and bogging out lower speeds
  183. 2003 Deville CKP codes
  184. P 0300 random misfire - 2000 STS
  185. Northstar Performance rebuilt engine
  186. exhaust buzzing noise 2006 dts
  187. Northstar head repair in Chicagoland area
  188. Guide pins
  189. Installing Rear Main Seal with Crank Removed
  190. Heater core follows head gasket ?
  191. 99 SLS overheating, need help
  192. Fixing Head Gasket
  193. Kent-Moore VS Time-sert
  194. Bought 1998 Deville 4 days ago - overheating
  195. Northstar: Did they ever get better?
  196. I need step by step procedure to replace a 2005 STS motor LH2 quickly
  197. HG test and green result
  198. Eliminating/raising the speed limiter - how to?
  199. Water pump removal socket-northstar
  200. Lurching idle
  201. 5.3 motor
  202. 95 Eldorado alternator plug wiring
  203. OVERHEATING (Long)
  204. 2000 Deville Motor Mount Heat Shield
  205. 95-99 Engine Beauty Cover - Intake bolts Not lining up
  206. 1998 STS Trouble Codes & Emission Test
  207. A positive HG repair experience
  208. 2000 DHS transmission light on
  209. Anyone that has pulled an N*? PLEASE! I need some advice.
  210. Blown Head Gasket Help
  211. Sell or Keep N*
  212. Best way to clean the engine bay?
  213. Shops that specilize in head gasket repair.
  214. oil loadup at idle
  215. EGR Cleaning - '97 ETC
  216. engine over heating..
  217. Cleared PCM codes - now emissions test not ready
  218. Madtuner.com
  219. N* 4.6 Bad Compression, Help Please
  220. Best Replacement Mount For 2000 Deville
  221. Do not stud a Northstar
  222. Drilling and Tapping The Northstar V8......my personal experience so far.
  223. Northstar TB upgrade
  224. 2002 Deville Transaxle
  225. clogged heater core
  226. 2000 Deville Base - Front Ground Wire
  227. fuel injectors,1993 4.6 northstar VIn Y
  228. Chips
  229. my STS...its a miracle!
  230. How to clean out fuel system in a 96 Eldorado sitting for 6 years.
  231. low oil pressure-'97 SLS
  232. Northstar exhaust
  233. Update on parts I have/had
  234. Northstar Smoke On Startup
  235. O5 DeVille Is That My Lifters I Hear????
  236. 2006 4.6 northstar performance upgrades
  237. 1995 SLS questions on codes
  238. Recommend Pro Mar in NJ for a Northstar Rebuild. :)
  239. Replacing a Northstar in my 2003 Seville...what should I check for?
  240. HELP! 1999 SLS Coolant leak
  241. 2008 DTS misfire issue
  242. P 0300 code 2005 DTS - can't find the miss
  243. .030" over head gasket?
  244. 4.6L 32 valve water in oil
  245. P 0306 code
  246. 2000 DHS - cooling system problems
  247. 1990 DeVille idles rough
  248. 1997 STS - hard start, backfire when cranking
  249. Tappets or Rocker Followers - Two Different Head Designs???
  250. 2004 0r 2006 ?