: Northstar Engines and System Technical Discussion



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  1. Northstar wine
  2. Northstar Performance - officially offering custom PCM tuning January 2015
  3. Fuel rail and injector work on 2002 Deville
  4. Northstar VIN 9 - 2002 - engine exhaust work
  5. oil in coolant-'99 deville
  6. Northstar using excessive oil
  7. 2002 Deville AIR pump cover replacement
  8. 2002 Northstar VIN Y>9 cam swap and P/N questions
  9. 97 deville Help with rear coolant leak
  10. Boost and engine management - 1997 Eldorado base
  11. Cam cover bolts loose
  12. Possible HG leak in '01 SLS
  13. Upper front coolant pipe- 2000 ESC
  14. Northstar Motor Swap - 2008 into 2001 car
  15. Weird oil leak - 2002 Deville
  16. 02 Deville base different color valve covers?
  17. Northstar flexplate bolt circle question
  18. LH2 swap into another car ; questions about the northstar and computer
  19. Northstar rebuild 01 eldo
  20. No acceleration... 2003 Deville
  21. 2000 Deville misfire cylinders 1 and 2
  22. Should this come off easily?
  23. Northstar exercise and driving style
  24. 2003 Deville starter motor location
  25. 1993 4.6L Northstar engine swap into hotrod project.
  26. Whining noise at startup - 2001 Eldorado
  27. Rough idle 99'
  28. Installing a crank kit in a 99 sls
  29. very quick temp spike then normal
  30. $150 made $1,000 worth of difference
  31. Question & Video of movement in secondary cam chain
  32. 1994 SLS no-start problems
  33. What is a good operating temperature?
  34. P0336 -Crankshaft Position Sensor 'A'
  35. How to tell which valve lash adjuster is faulty.
  36. Time for HG repair
  37. icm (ignition control module) problem keeps going out
  38. How to know if you have already entered some inserts in my engine?
  39. 2000 Northstar Strange Starter Issue?
  40. 99 Northstar rebuild questions
  41. Northstars sorted out yet?
  42. 4.6 white smoke issue
  43. Northstar and a turbo
  44. 2003 Deville misfire when warm
  45. 02 Deville 90k - low idle
  46. Need bolt torque specs: Flywheel, Torque Converter, Trans bolts.
  47. All of a sudden 2003 Deville developed a miss
  48. Northstar swap wiring harness question
  49. Any shops that know the N* near Ft. Walton Beach,FL ?
  50. replacing the oil pan in a 2000 deville
  51. Northstar - AIR valves ?
  52. 1994 N* Fuel Pressure Regulator
  53. New Northstar Engines
  54. Timing Chain Guide Adapt - 98+ to the old style engines
  55. 97' ETC check engine gives all O2 codes
  56. Northstar Overhaul Shop near Southern Maine, NH or MA
  57. Finished Replacement Front Engine Mount
  58. Studs officially shipping from the USA - thanks to JoeTahoe
  59. what to check when buying a northstar?
  60. Can I run 40W or 50w OIL on my NORTHSTAR 4.6? I live in very HOT WEATHER
  61. How to check for Hydrolock?
  62. 1999 Deville smokes at idle
  63. 2002 Deville - Knock sensor ?
  64. 96 Deville - Misfire on #8
  65. MAP sensor location critical ?
  66. 93-94 Northstar Water Pump Tensioner
  67. Please post recommended Northstar Repair Shops in Florida
  68. Cradle won't drop on 98 STS
  69. Replaced old radiator due to crack, overheats with new radiator.. PLEASE HELP
  70. 4 Bad Headgaskets
  71. What is involved in swapping a 93 Edo vin9 with a 95 viny (is it doable) ?????
  72. Swap Nightmare
  73. 2000 Deville possible overheat
  74. EVAP code P 0442
  75. Deville Northtar engine swap and PCM problems
  76. 04 Deville - engine upgrades
  77. 2001 Deville: Won't stay running while in drive
  78. Nortstar engine removal.
  79. Engine overheat and oil in coolant - 2001 STS
  80. What do you like about your Northstar powered vehicle?
  81. Is it possible to remove the cams and keep the timing chain tensioner in place?
  82. Low coolant sensor
  83. 1999 STS leaking coolant
  84. My story: HG headgasket failure
  85. LH2 Swap - Issue starting
  86. Oil/coolant mixing
  87. Throttle Position Sensor relearn ??
  88. 2000 & up Seville air intake resonator
  89. 2001 Seville engine overhaul questions
  90. 2000 Deville Fuel Pressure Specs
  91. 2002 Deville rough idle
  92. 99 eldorado 02 sensors
  93. Oil Pressure Sending Unit - SRX
  94. P0308 #8 Misfire issue... Replaced a lot, still have issue
  95. 99 STS hard cold start. No codes, fpr tests ok and fuel is 44 psi running
  96. A method to remove Crankshaft bolt without locking the flywheel or using the starter.
  97. 2002 Deville AIR pump Vacuum line Routing
  98. 1999 Deville Headgasket - head job or total overhaul ?
  99. 2001 deville engine making kocking noise
  100. 2002 Deville Overheating after Thermostat replacement
  101. Water pump drive pulley
  102. Special tool for Northstar water pump drive pulley
  103. Reliability of 2005 and beyond Northstar-powered cars
  104. Harmonic Balancer Torque
  105. Need advice on who to do a Northstar head job in the Huntsville Alabama area
  106. NGK Spark plugs & coolant level message - 2003 Deville
  107. Get a Free set of Main Studs with Purchase of Sure Grip Cylinder Head Stud Kit
  108. Developed an engine whine... what is it?
  109. Please help with PCM issue on 1993 Allante
  110. limp mode..now misfire
  111. Water cooled alternator - what years/models ?
  112. O2 Sensors in a Hot Rod Set-up
  113. 2002 Northstar WOT, performance brakes, CORSA ?
  114. 1996 and later Northstar performance chips
  115. Magnaflows on a 2003 Deville
  116. socket down camshaft drive chain slot
  117. coolant drip middle front lower
  118. 2005 STS Camshaft Sensor Location? V8 4.6 engine
  119. Pcm issue or camshaft issue any help
  120. Rail / Injector Leak Deville 99
  121. Northstar chips, cold air intakes, and spark plugs
  122. coil on plug ignition modules
  123. Mystery Check Engine Light
  124. Only starts with starting fluid - '97 SLS
  125. 99 STS head gasket repair [ in car]
  126. Problem with 97 Eldorado. P 0300...
  127. 02 Cooling building back pressure. Purge line clear.
  128. 1998 STS coolant change
  129. Mystery Black Wire
  130. Oil pressure
  131. 98 deville, uses oil? but how
  132. What year is my Northstar motor, and what cars will it drop into?
  133. trouble with spark from coil packs
  134. Replace and Reprogram PCM 2001 DTS
  135. 1995 SLS - Poor idle quality
  136. Oil Pan Gasket and Permatex UltraGray placement
  137. 98 Deville, changing the coolant, sealant tabs?
  138. 2000 Deville Water Pump will Not Come Out
  139. Fuel pressure regulator
  140. 2003 Deville - exhaust steaming and coolant loss
  141. Can't remove Water Pump Drive pulley.. ever seen one that is stuck?
  142. Best Rear Main Seal Fix?
  143. Critique my coolant flush method
  144. Oil pressure light - 1998 Deville Northstar
  145. 1994 Eldorado thermostat replacement and coolant leak
  146. EGR Tubing
  147. '02 Seville was running fine, now it's not ?
  148. flex tube exhaust
  149. 01 Northstar Water in oil, high oil use, misses when cold.
  150. Coolant Leak Source? (pictures)
  151. When to reseal case halves?
  152. Look what I found in my engine!
  153. Puzzling Clattering Noise During Warm Startups
  154. HG's vs Pulled Threads
  155. Cat problems?
  156. Oil leaks on 1998 ElDorado
  157. 2000+ Intake Manifold on 1998 Northstar
  158. 2001 Deville - coolant boiling in reservoir
  159. Problem with my 1994 Eldorado engine - smoking
  160. code P 0171, P 0174 - solved
  161. Unable to communicate with the console cluster
  162. North Star Engine Disappointment (copy)
  163. SJ - API oil
  164. 97 ETC exhaust manifold fasterners.
  165. Fix the engine, (HG), replace the engine?
  166. Where does this go...?
  167. PCV Valve Elbow?
  168. Pics of my oil leaks
  169. combustion leak tester
  170. Anyone used Lucas Engine Stop Leak?
  171. Water pump issue, mostly? 1994 STS
  172. 98 Deville Water Pump Fail After Serpentine Belt Replaced
  173. Water Pump - Failing When Hot
  174. Oil Pan Leak?
  175. 2002 Deville misfire on Northstar
  176. I'm gonna do a block test today
  177. Car keeps overheating
  178. Service fuel system
  179. radiator cap # ?
  180. Northstar Loan-A-Tool Program, USA shipping on stud kits
  181. EGR Major Issues..help!
  182. 2000 Deville surging?
  183. 1998 STS crankshaft position sensors location
  184. Deville engine swaps and differences
  185. Water pump won't break
  186. New business pratices and standards coming into effect Apr 15/2014
  187. AIR pump on '99
  188. 1995 STS - multiple crank cold starts
  189. Pre-diagnosing HG issues?
  190. eldo running hot
  191. Which alternator? 94 Deville Concours
  192. My 1994 Deville 4.9 is starting to show some signs.
  193. 1999 deville - replaced water pump - running hot
  194. 2009 Buick Lucerne Headgasket
  195. The American V8 - Anatomy of a Hydrolock
  196. 2005 Deville oil pan seal leak
  197. Vacuum diagram
  198. 1997 STS - Long crank/start times - (Advice / Ideas)
  199. Lower crankcase reseal - 2005 Deville
  200. My sincerest apologies and also thanks -
  201. headbolt inserts
  202. Northstar and carbon cleaning
  203. Running but ............... 2001 Northstar
  204. 2000 DTS - no power
  205. To buy or not to buy.....1998 ESC
  206. 1996 DeVille flex plate replacement
  207. engine oil in intake manifold
  208. 2004 DTS Frustrations... misfires and SES
  209. 2000 SLS powertrain/ cradle removal
  210. 98 deville coolant smell?
  211. 02 N☆ Fuel Pressure
  212. Air intake upgrade - DTS Performance ?
  213. 2007 Engine Knock 4.6 Help
  214. The Caddy lives again - Life after the dreaded head leakage
  215. 1997 Deville - EGR remove & replace
  216. Northstar head bolt hole thread repair options
  217. Northstar Production Numbers 1993-2009
  218. 2000 STS - P 0300 - rough idle
  219. 2003 Seville EGR codes
  220. 2004 DHS - CMP location ?
  221. Mechinical buzzing noise from under hood ( 2002 Deville, 150,000)
  222. Blue devil and Norhtstar:
  223. Stalling issue - slow speeds - 1998 ETC
  224. Damaged throttle cable (1998 Deville)
  225. 2000 DTS - correct replacement engine ?
  226. My experience with the water crossover job
  227. Northstar Swap Question
  228. Interesting Listing........ pre-2000 Northstar and transmission
  229. 2001 Deville oil distribution manifold plate seal leak
  230. 1998 Deville has leak at water crossover (150,000 miles)
  231. 2003 Head Gasket Repair
  232. 2006 Northstar engine problems - Buick Lucerne
  233. Water pump? 1999 STS overheating
  234. Northstar swap into a 1987 Fiero GT - engines and differences
  235. Oil Filter Pre-fill
  236. The InFamous N* Oil Leak - Oil Manifold
  237. Engine miss - 1998 Deville
  238. Priming Northstar after total rebuild
  239. Which Rear Main Seal installer do I need for a 1999 DeVille?
  240. Alt amps too high?
  241. 2003 STS engine seized
  242. Cylinder damage question....extended idling
  243. Anyone use "cadillacheadgasketfix.com" in bellflower, ca. to rebuild their Northstar?
  244. My 2000 Deville is back to life
  245. Melted camshaft water pump drive pulley
  246. 2001 Deville N* Spark plug boots questions
  247. drove over curb in fog 96 cadi died and wont restart
  248. fuel injector removal
  249. 2000 head gasket/ insert differences
  250. Northstar overheating-Repair