: Northstar Engines and System Technical Discussion



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  1. engine oil in intake manifold
  2. 2004 DTS Frustrations... misfires and SES
  3. 2000 SLS powertrain/ cradle removal
  4. 98 deville coolant smell?
  5. 02 N☆ Fuel Pressure
  6. Air intake upgrade - DTS Performance ?
  7. 2007 Engine Knock 4.6 Help
  8. The Caddy lives again - Life after the dreaded head leakage
  9. 1997 Deville - EGR remove & replace
  10. Northstar head bolt hole thread repair options
  11. Northstar Production Numbers 1993-2009
  12. 2000 STS - P 0300 - rough idle
  13. 2003 Seville EGR codes
  14. 2004 DHS - CMP location ?
  15. Mechinical buzzing noise from under hood ( 2002 Deville, 150,000)
  16. Blue devil and Norhtstar:
  17. Stalling issue - slow speeds - 1998 ETC
  18. Damaged throttle cable (1998 Deville)
  19. 2000 DTS - correct replacement engine ?
  20. My experience with the water crossover job
  21. Northstar Swap Question
  22. Interesting Listing........ pre-2000 Northstar and transmission
  23. 2001 Deville oil distribution manifold plate seal leak
  24. 1998 Deville has leak at water crossover (150,000 miles)
  25. 2003 Head Gasket Repair
  26. 2006 Northstar engine problems - Buick Lucerne
  27. Water pump? 1999 STS overheating
  28. Northstar swap into a 1987 Fiero GT - engines and differences
  29. Oil Filter Pre-fill
  30. The InFamous N* Oil Leak - Oil Manifold
  31. Engine miss - 1998 Deville
  32. Priming Northstar after total rebuild
  33. Which Rear Main Seal installer do I need for a 1999 DeVille?
  34. Alt amps too high?
  35. 2003 STS engine seized
  36. Cylinder damage question....extended idling
  37. Anyone use "cadillacheadgasketfix.com" in bellflower, ca. to rebuild their Northstar?
  38. My 2000 Deville is back to life
  39. Melted camshaft water pump drive pulley
  40. 2001 Deville N* Spark plug boots questions
  41. drove over curb in fog 96 cadi died and wont restart
  42. fuel injector removal
  43. 2000 head gasket/ insert differences
  44. Northstar overheating-Repair
  45. Head porting Northstar...
  46. 01 Seville runs rough, 0306 code intermittent
  47. Attention all Northstar engine owners - Carroll Cadillac studs
  48. Questions about pre 00 Northstar oil change and use of additives
  49. Pressure in expansion tank
  50. ran out of gas now my SES light turned on any help
  51. New Northstar Crate Engines
  52. very bad coolant leak
  53. High Idle question
  54. Flowmasters on a 2003 SLS
  55. Simple spark plug question - Northstar "tune up"
  56. Results posted - Christmas Draw - FREE STUD KIT!
  57. 2004 Deville rough idle
  58. 1996 Deville fuel injectors
  59. Cylinder head bolt replacement
  60. Northstar R&D-Bench Test Apparatus
  61. Hello Cadillac/Northstar owners
  62. 1996 Deville...... 4.6 Northstar trouble......lotsa trouble.
  63. P0300 Misfire - My problem and solution + more problems...
  64. Best Engine Mounts - 1993-1994 or the newer?
  65. Blown head gasket repair
  66. occassional stalling problem
  67. 05 Deville
  68. Northstar battery life expectation
  69. 2001 DTS Valve Clearance question
  70. Fuel Pump Longevity/Milage Expectations
  71. Torquing N* head
  72. 96' Northstar cranks, will not start
  73. 01 Deville Cylinder #1 misfire
  74. bucking and kicking
  75. Northstar sitting for 12 years...need new springs?
  76. 2005 Bonneville GXP Northstar jumped time
  77. 2001 ETC Intermittent High Idle
  78. 2001 DTS won't accelerate past 2K rpms after spark plug change
  79. Advice on NorthStar coils - both ignition types
  80. Another Shout Out to Jake!!
  81. Code P 0171 showing - 1999 Deville
  82. 2001 DTS - interference engine 4.6l and timing chain replacement ?
  83. Studded heads update
  84. 1999 STS coolant questions
  85. 2000 STS NS smoking under hood after WOT
  86. Governor in NorthStar V8?
  87. O2 sensor-bank 1 S1
  88. No spark
  89. Please help! 94 SLS water pump cover...
  90. Wherer do these parts go ???
  91. Sudden Increase in Oil Consumption 2003 DHS
  92. Crankshaft pulley wobble
  93. 2001 Deville. Can't start after reinstalling engine
  94. Head gaskets and Time-Serts
  95. Oil pump?
  96. Help find part
  97. Maximum valve lift 04-05 Northstar 4.6
  98. 96' Northstar coolant leak
  99. cooling fan relays
  100. Help - 1993 Eldorado needs new engine
  101. Head Bolt Threads - Bonneville Northstar
  102. DOHC theory, any new information?
  103. Compression Ring Treatment
  104. Where do these go?
  105. New motor to replace the northstar
  106. Northstar Replacement
  107. 2001 Deville hesitates while accelerating
  108. Retirement from the physical repairs to focus on the stud kits-
  109. The Dreaded Northstar Leaking Head Gasket- Fix, Sell or Junk?
  110. Why Leaking Headgaskets
  111. Is it dangerous - cracked flexplate on a Northstar
  112. 2008 STS engin dont swing
  113. fuel pump suddenly stops
  114. Stumble and stall
  115. Valve cover gaskets
  116. On the road again!
  117. 2001 Deville flat or domed pistons
  118. Changing the water pump "Belt?
  119. 1998 STS - Dies at speed and won't restart sometimes.
  120. Is it safe to buy a Northstar now? I can't stop driving Cadillacs!
  121. Northstar size question
  122. Need mechanic - 1994 STS Northstar near Winnipeg
  123. Northstar overheating
  124. Interchangeability of VIN: 9 and VIN: Y transmissions?
  125. Northstar Commander 950 base Map - sand rail install
  126. overheating need help
  127. Just a head gasket failure?
  128. Northstar engine questions from Finland
  129. P 0171 and P 0174 code - 2004 Deville
  130. new generator-->ECM broken
  131. Disconnecting EGR
  132. water crossover
  133. mid case reseal tsb
  134. 4.6 N* Cylinder walls
  135. Replacing the alternator on 97 Deville Concours
  136. Ready to stud another northstar
  137. Heli-Coil removal?
  138. Northstar Performance
  139. Wanted to clean EGR but what have those engineers done now
  140. 99 N* rebuilt and burning lots of oil
  141. Northstar into Chevy Beretta swap
  142. 2001 Deville overheating... block test OK
  143. low oil pressure
  144. Pros & Cons Cadillac 4.6 vs Ford 4.6 (eg lincoln mark viii and others)
  145. Codes P0171, P0174 and P1258 come up on 1997 Deville
  146. Coil pack
  147. Eastern Massachusetts Cadillac shops?
  148. voltage question
  149. Bouncing Idles - 1995 SLS Northstar
  150. 2000 STS question
  151. Northstar maintenance requirements - 2005 Deville
  152. Brand New 1993-1994 Northstar Engine - Oil Leak Modified or Not
  153. Hard Starting Warm - if not Pedal to the Metal
  154. DHS 2000 won't start after changing CranKshaft and CaMshaft Position Sensors
  155. 1996 Deville over heats when ac is on
  156. HG question - 1997 Eldorado, 127000 miles
  157. need help
  158. Now what do I do? Northstar block casting porosity
  159. Coolant all over top of engine?
  160. 97 SLS Overheating - I've checked everything and need ideas
  161. 03 Deville hard idle and bogging out lower speeds
  162. 2003 Deville CKP codes
  163. P 0300 random misfire - 2000 STS
  164. Northstar Performance rebuilt engine
  165. exhaust buzzing noise 2006 dts
  166. Northstar head repair in Chicagoland area
  167. Guide pins
  168. Installing Rear Main Seal with Crank Removed
  169. Heater core follows head gasket ?
  170. 99 SLS overheating, need help
  171. Fixing Head Gasket
  172. Kent-Moore VS Time-sert
  173. Bought 1998 Deville 4 days ago - overheating
  174. Northstar: Did they ever get better?
  175. I need step by step procedure to replace a 2005 STS motor LH2 quickly
  176. HG test and green result
  177. Eliminating/raising the speed limiter - how to?
  178. Water pump removal socket-northstar
  179. Lurching idle
  180. 5.3 motor
  181. 95 Eldorado alternator plug wiring
  182. OVERHEATING (Long)
  183. 2000 Deville Motor Mount Heat Shield
  184. 95-99 Engine Beauty Cover - Intake bolts Not lining up
  185. 1998 STS Trouble Codes & Emission Test
  186. A positive HG repair experience
  187. 2000 DHS transmission light on
  188. Anyone that has pulled an N*? PLEASE! I need some advice.
  189. Blown Head Gasket Help
  190. Sell or Keep N*
  191. Best way to clean the engine bay?
  192. Shops that specilize in head gasket repair.
  193. oil loadup at idle
  194. EGR Cleaning - '97 ETC
  195. engine over heating..
  196. Cleared PCM codes - now emissions test not ready
  197. Madtuner.com
  198. N* 4.6 Bad Compression, Help Please
  199. Best Replacement Mount For 2000 Deville
  200. Do not stud a Northstar
  201. Drilling and Tapping The Northstar V8......my personal experience so far.
  202. Northstar TB upgrade
  203. 2002 Deville Transaxle
  204. clogged heater core
  205. 2000 Deville Base - Front Ground Wire
  206. fuel injectors,1993 4.6 northstar VIn Y
  207. Chips
  208. my STS...its a miracle!
  209. How to clean out fuel system in a 96 Eldorado sitting for 6 years.
  210. low oil pressure-'97 SLS
  211. Northstar exhaust
  212. Update on parts I have/had
  213. Northstar Smoke On Startup
  214. O5 DeVille Is That My Lifters I Hear????
  215. 2006 4.6 northstar performance upgrades
  216. 1995 SLS questions on codes
  217. Recommend Pro Mar in NJ for a Northstar Rebuild. :)
  218. Replacing a Northstar in my 2003 Seville...what should I check for?
  219. HELP! 1999 SLS Coolant leak
  220. 2008 DTS misfire issue
  221. P 0300 code 2005 DTS - can't find the miss
  222. .030" over head gasket?
  223. 4.6L 32 valve water in oil
  224. P 0306 code
  225. 2000 DHS - cooling system problems
  226. 1990 DeVille idles rough
  227. 1997 STS - hard start, backfire when cranking
  228. Tappets or Rocker Followers - Two Different Head Designs???
  229. 2004 0r 2006 ?
  230. Change cat?
  231. Changing the Serpentine belt on a VIN Y Northstar V8
  232. 2006 Northstar 4.6 overheating
  233. 2002 STS Bottom end repaired early on.........questions
  234. 2002 DTS Northstar questions
  235. Northstar Water Pump Mounting Changes - Year?
  236. 94 SLS feels like its going to stall when at stoplight
  237. 2000 DTS - Overheating Issues
  238. 2001 Northstar piston to rod orientation?
  239. Should I clean my EGR valve also replace air pump
  240. Best transmission for a Northstar to LaSalle Street Rod swap
  241. Would these chain tensioners cause excessive engine noise?
  242. Rebuilt 4.6 from Davis Auto Repair or Cadillac Doctor
  243. Real bad oil leak!
  244. P0719how much coukd this code cost me
  245. Drink coasters from engine cover emblems.
  246. Strange compression test results, oil inside intake manifold & smoke !!
  247. Bore heads for larger headbolts or stud/insert ?
  248. Diffrence from 2000 and 2006 northstar engine?
  249. Exxon valdez
  250. 97 ETC Head Gasket Project