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View Full Version : Northstar Engines and System Technical Discussion



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  1. ran out of gas now my SES light turned on any help
  2. Pressure in expansion tank
  3. Questions about pre 00 Northstar oil change and use of additives
  4. Attention all Northstar engine owners - Carroll Cadillac studs
  5. 01 Seville runs rough, 0306 code intermittent
  6. Head porting Northstar...
  7. Northstar overheating-Repair
  8. 2000 head gasket/ insert differences
  9. fuel injector removal
  10. drove over curb in fog 96 cadi died and wont restart
  11. 2001 Deville N* Spark plug boots questions
  12. Melted camshaft water pump drive pulley
  13. My 2000 Deville is back to life
  14. Anyone use "cadillacheadgasketfix.com" in bellflower, ca. to rebuild their Northstar?
  15. Cylinder damage question....extended idling
  16. 2003 STS engine seized
  17. Alt amps too high?
  18. Which Rear Main Seal installer do I need for a 1999 DeVille?
  19. Priming Northstar after total rebuild
  20. Engine miss - 1998 Deville
  21. The InFamous N* Oil Leak - Oil Manifold
  22. Oil Filter Pre-fill
  23. Northstar swap into a 1987 Fiero GT - engines and differences
  24. Water pump? 1999 STS overheating
  25. 2006 Northstar engine problems - Buick Lucerne
  26. 2003 Head Gasket Repair
  27. 1998 Deville has leak at water crossover (150,000 miles)
  28. 2001 Deville oil distribution manifold plate seal leak
  29. Interesting Listing........ pre-2000 Northstar and transmission
  30. Northstar Swap Question
  31. My experience with the water crossover job
  32. 2000 DTS - correct replacement engine ?
  33. Damaged throttle cable (1998 Deville)
  34. Stalling issue - slow speeds - 1998 ETC
  35. Blue devil and Norhtstar:
  36. Mechinical buzzing noise from under hood ( 2002 Deville, 150,000)
  37. 2004 DHS - CMP location ?
  38. 2003 Seville EGR codes
  39. 2000 STS - P 0300 - rough idle
  40. Northstar Vehicle Production Numbers 1993-2009
  41. Northstar head bolt hole thread repair options
  42. 1997 Deville - EGR remove & replace
  43. The Caddy lives again - Life after the dreaded head leakage
  44. 2007 Engine Knock 4.6 Help
  45. Air intake upgrade - DTS Performance ?
  46. 02 N☆ Fuel Pressure
  47. 98 deville coolant smell?
  48. 2000 SLS powertrain/ cradle removal
  49. 2004 DTS Frustrations... misfires and SES
  50. engine oil in intake manifold
  51. 1996 DeVille flex plate replacement
  52. To buy or not to buy.....1998 ESC
  53. 2000 DTS - no power
  54. Running but ............... 2001 Northstar
  55. Northstar and carbon cleaning
  56. headbolt inserts
  57. My sincerest apologies and also thanks -
  58. Lower crankcase reseal - 2005 Deville
  59. 1997 STS - Long crank/start times - (Advice / Ideas)
  60. Vacuum diagram
  61. 2005 Deville oil pan seal leak
  62. The American V8 - Anatomy of a Hydrolock
  63. 2009 Buick Lucerne Headgasket
  64. 1999 deville - replaced water pump - running hot
  65. My 1994 Deville 4.9 is starting to show some signs.
  66. Which alternator? 94 Deville Concours
  67. eldo running hot
  68. Pre-diagnosing HG issues?
  69. 1995 STS - multiple crank cold starts
  70. AIR pump on '99
  71. New business pratices and standards coming into effect Apr 15/2014
  72. Water pump won't break
  73. Deville engine swaps and differences
  74. 1998 STS crankshaft position sensors location
  75. 2000 Deville surging?
  76. EGR Major Issues..help!
  77. Northstar Loan-A-Tool Program, USA shipping on stud kits
  78. radiator cap # ?
  79. Service fuel system
  80. Car keeps overheating
  81. I'm gonna do a block test today
  82. 2002 Deville misfire on Northstar
  83. Oil Pan Leak?
  84. Water Pump - Failing When Hot
  85. 98 Deville Water Pump Fail After Serpentine Belt Replaced
  86. Water pump issue, mostly? 1994 STS
  87. Anyone used Lucas Engine Stop Leak?
  88. combustion leak tester
  89. Pics of my oil leaks
  90. PCV Valve Elbow?
  91. Where does this go...?
  92. Fix the engine, (HG), replace the engine?
  93. 97 ETC exhaust manifold fasterners.
  94. SJ - API oil
  95. North Star Engine Disappointment (copy)
  96. Unable to communicate with the console cluster
  97. code P 0171, P 0174 - solved
  98. Problem with my 1994 Eldorado engine - smoking
  99. 2001 Deville - coolant boiling in reservoir
  100. 2000+ Intake Manifold on 1998 Northstar
  101. Oil leaks on 1998 ElDorado
  102. Cat problems?
  103. HG's vs Pulled Threads
  104. Puzzling Clattering Noise During Warm Startups
  105. Look what I found in my engine!
  106. When to reseal case halves?
  107. Coolant Leak Source? (pictures)
  108. 01 Northstar Water in oil, high oil use, misses when cold.
  109. flex tube exhaust
  110. '02 Seville was running fine, now it's not ?
  111. EGR Tubing
  112. 1994 Eldorado thermostat replacement and coolant leak
  113. Oil pressure light - 1998 Deville Northstar
  114. Critique my coolant flush method
  115. Best Rear Main Seal Fix?
  116. Can't remove Water Pump Drive pulley.. ever seen one that is stuck?
  117. 2003 Deville - exhaust steaming and coolant loss
  118. Fuel pressure regulator
  119. 2000 series Northstar water pump will not come out
  120. 98 Deville, changing the coolant, sealant tabs?
  121. Oil Pan Gasket and Permatex UltraGray placement
  122. 1995 SLS - Poor idle quality
  123. Replace and Reprogram PCM 2001 DTS
  124. trouble with spark from coil packs
  125. What year is my Northstar motor, and what cars will it drop into?
  126. 98 deville, uses oil? but how
  127. Oil pressure
  128. Mystery Black Wire
  129. 1998 STS coolant change
  130. 02 Cooling building back pressure. Purge line clear.
  131. Problem with 97 Eldorado. P 0300...
  132. 99 STS head gasket repair [ in car]
  133. Only starts with starting fluid - '97 SLS
  134. Mystery Check Engine Light
  135. coil on plug ignition modules
  136. Northstar chips, cold air intakes, and spark plugs
  137. Rail / Injector Leak Deville 99
  138. Pcm issue or camshaft issue any help
  139. 2005 STS Camshaft Sensor Location? V8 4.6 engine
  140. coolant drip middle front lower
  141. socket down camshaft drive chain slot
  142. Magnaflows on a 2003 Deville
  143. 1996 and later Northstar performance chips
  144. 2002 Northstar WOT, performance brakes, CORSA ?
  145. O2 Sensors in a Hot Rod Set-up
  146. Water cooled alternator - what years/models ?
  147. limp mode..now misfire
  148. Please help with PCM issue on 1993 Allante
  149. Developed an engine whine... what is it?
  150. Get a Free set of Main Studs with Purchase of Sure Grip Cylinder Head Stud Kit
  151. NGK Spark plugs & coolant level message - 2003 Deville
  152. Need advice on who to do a Northstar head job in the Huntsville Alabama area
  153. Harmonic Balancer Torque
  154. Reliability of 2005 and beyond Northstar-powered cars
  155. Special tool for Northstar water pump drive pulley
  156. Water pump drive pulley
  157. 2002 Deville Overheating after Thermostat replacement
  158. 2001 deville engine making kocking noise
  159. 1999 Deville Headgasket - head job or total overhaul ?
  160. 2002 Deville AIR pump Vacuum line Routing
  161. A method to remove Crankshaft bolt without locking the flywheel or using the starter.
  162. 99 STS hard cold start. No codes, fpr tests ok and fuel is 44 psi running
  163. P0308 #8 Misfire issue... Replaced a lot, still have issue
  164. Oil Pressure Sending Unit - SRX
  165. 99 eldorado 02 sensors
  166. 2002 Deville rough idle
  167. 2000 Deville Fuel Pressure Specs
  168. 2001 Seville engine overhaul questions
  169. 2000 & up Seville air intake resonator
  170. Throttle Position Sensor relearn ??
  171. Oil/coolant mixing
  172. LH2 Swap - Issue starting
  173. My story: HG headgasket failure
  174. 1999 STS leaking coolant
  175. Low coolant sensor
  176. Is it possible to remove the cams and keep the timing chain tensioner in place?
  177. What do you like about your Northstar powered vehicle?
  178. Engine overheat and oil in coolant - 2001 STS
  179. Nortstar engine removal.
  180. 2001 Deville: Won't stay running while in drive
  181. 04 Deville - engine upgrades
  182. Deville Northtar engine swap and PCM problems
  183. EVAP code P 0442
  184. 2000 Deville possible overheat
  185. Swap Nightmare
  186. What is involved in swapping a 93 Edo vin9 with a 95 viny (is it doable) ?????
  187. 4 Bad Headgaskets
  188. Replaced old radiator due to crack, overheats with new radiator.. PLEASE HELP
  189. Cradle won't drop on 98 STS
  190. Please post recommended Northstar Repair Shops in Florida
  191. 93-94 Northstar Water Pump Tensioner
  192. MAP sensor location critical ?
  193. 96 Deville - Misfire on #8
  194. 2002 Deville - Knock sensor ?
  195. 1999 Deville smokes at idle
  196. How to check for Hydrolock?
  197. Can I run 40W or 50w OIL on my NORTHSTAR 4.6? I live in very HOT WEATHER
  198. what to check when buying a northstar?
  199. Studs officially shipping from the USA - thanks to JoeTahoe
  200. Finished Replacement Front Engine Mount
  201. Northstar Overhaul Shop near Southern Maine, NH or MA
  202. 97' ETC check engine gives all O2 codes
  203. Timing Chain Guide Adapt - 98+ to the old style engines
  204. New Northstar Engines
  205. 1994 N* Fuel Pressure Regulator
  206. Northstar - AIR valves ?
  207. replacing the oil pan in a 2000 deville
  208. Please post a State & City guide to Northstar Head Gasket repair shops that you know
  209. Northstar swap wiring harness question
  210. All of a sudden 2003 Deville developed a miss
  211. Need bolt torque specs: Flywheel, Torque Converter, Trans bolts.
  212. 02 Deville 90k - low idle
  213. 2003 Deville misfire when warm
  214. Northstar and a turbo
  215. 4.6 white smoke issue
  216. Northstars sorted out yet?
  217. 99 Northstar rebuild questions
  218. 2000 Northstar Strange Starter Issue?
  219. How to know if you have already entered some inserts in my engine?
  220. icm (ignition control module) problem keeps going out
  221. Time for HG repair
  222. How to tell which valve lash adjuster is faulty.
  223. P0336 -Crankshaft Position Sensor 'A'
  224. What is a good operating temperature?
  225. 1994 SLS no-start problems
  226. Question & Video of movement in secondary cam chain
  227. $150 made $1,000 worth of difference
  228. very quick temp spike then normal
  229. Installing a crank kit in a 99 sls
  230. Rough idle 99'
  231. Whining noise at startup - 2001 Eldorado
  232. 1993 4.6L Northstar engine swap into hotrod project.
  233. 2003 Deville starter motor location
  234. Northstar exercise and driving style
  235. Should this come off easily?
  236. 2000 Deville misfire cylinders 1 and 2
  237. No acceleration... 2003 Deville
  238. Northstar rebuild 01 eldo
  239. LH2 swap into another car ; questions about the northstar and computer
  240. Northstar flexplate bolt circle question
  241. 02 Deville base different color valve covers?
  242. Weird oil leak - 2002 Deville
  243. Northstar Motor Swap - 2008 into 2001 car
  244. Upper front coolant pipe- 2000 ESC
  245. Possible HG leak in '01 SLS
  246. Cam cover bolts loose
  247. Boost and engine management - 1997 Eldorado base
  248. 97 deville Help with rear coolant leak
  249. 2002 Northstar VIN Y>9 cam swap and P/N questions - cam TSB
  250. 2002 Deville AIR pump cover replacement