: Northstar Engines and System Technical Discussion



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  1. 2000 - 2004 PCV piping question
  2. Help with a possible head gasket issue...2002 SLS
  3. Northstar 2001 Head Gasket Repair - Charlotte, North Carolina
  4. Northstar Engine Problems, were they ever corrected in production by GM??
  5. Anyone Ever Use A Company In Jersey Called Top Line Auto Care
  6. surge tank cap pressure
  7. Heater Pipe Adapter Part #?
  8. What Is This Gasket
  9. Northstar fuel fouling on Bank 2 good on Bank 1
  10. Thought I'd never buy another Northstar but...
  11. 2002 DTS transmission codes P 1860, P 0741
  12. Head gasket replacement
  13. Introduction - 1997 SLS with problems
  14. engine swap 2004 to a 1997 deville
  15. Northstar Engine Build Center, Batavia, NY - Northstar Performance LLC
  16. Snapped Main Bearing Bolts
  17. Head gasket question
  18. '97 DeVille NorthStar location of oil pressure switch?
  19. 2005 STS - Northstar longevity
  20. Cam Removal
  21. 2002 STS More Horsepower (Solid & Safe)
  22. Manifold over pressure valve - 1996 Northstar
  23. 2005 Deville 48k mi rough idle in morning. Thinking it could be HG issue.
  24. Not ready to give up - 1997 VIN Y Deville engine work
  25. 1999 STS Losing Coolant Possible Head Gasket
  26. Northstar wine
  27. Northstar Performance - officially offering custom PCM tuning January 2015
  28. Fuel rail and injector work on 2002 Deville
  29. Northstar VIN 9 - 2002 - engine exhaust work
  30. oil in coolant-'99 deville
  31. Northstar using excessive oil
  32. 2002 Deville AIR pump cover replacement
  33. 2002 Northstar VIN Y>9 cam swap and P/N questions - cam TSB
  34. 97 deville Help with rear coolant leak
  35. Boost and engine management - 1997 Eldorado base
  36. Cam cover bolts loose
  37. Possible HG leak in '01 SLS
  38. Upper front coolant pipe- 2000 ESC
  39. Northstar Motor Swap - 2008 into 2001 car
  40. Weird oil leak - 2002 Deville
  41. 02 Deville base different color valve covers?
  42. Northstar flexplate bolt circle question
  43. LH2 swap into another car ; questions about the northstar and computer
  44. Northstar rebuild 01 eldo
  45. No acceleration... 2003 Deville
  46. 2000 Deville misfire cylinders 1 and 2
  47. Should this come off easily?
  48. Northstar exercise and driving style
  49. 2003 Deville starter motor location
  50. 1993 4.6L Northstar engine swap into hotrod project.
  51. Whining noise at startup - 2001 Eldorado
  52. Rough idle 99'
  53. Installing a crank kit in a 99 sls
  54. very quick temp spike then normal
  55. $150 made $1,000 worth of difference
  56. Question & Video of movement in secondary cam chain
  57. 1994 SLS no-start problems
  58. What is a good operating temperature?
  59. P0336 -Crankshaft Position Sensor 'A'
  60. How to tell which valve lash adjuster is faulty.
  61. Time for HG repair
  62. icm (ignition control module) problem keeps going out
  63. How to know if you have already entered some inserts in my engine?
  64. 2000 Northstar Strange Starter Issue?
  65. 99 Northstar rebuild questions
  66. Northstars sorted out yet?
  67. 4.6 white smoke issue
  68. Northstar and a turbo
  69. 2003 Deville misfire when warm
  70. 02 Deville 90k - low idle
  71. Need bolt torque specs: Flywheel, Torque Converter, Trans bolts.
  72. All of a sudden 2003 Deville developed a miss
  73. Northstar swap wiring harness question
  74. Any shops that know the N* near Ft. Walton Beach,FL ?
  75. replacing the oil pan in a 2000 deville
  76. Northstar - AIR valves ?
  77. 1994 N* Fuel Pressure Regulator
  78. New Northstar Engines
  79. Timing Chain Guide Adapt - 98+ to the old style engines
  80. 97' ETC check engine gives all O2 codes
  81. Northstar Overhaul Shop near Southern Maine, NH or MA
  82. Finished Replacement Front Engine Mount
  83. Studs officially shipping from the USA - thanks to JoeTahoe
  84. what to check when buying a northstar?
  85. Can I run 40W or 50w OIL on my NORTHSTAR 4.6? I live in very HOT WEATHER
  86. How to check for Hydrolock?
  87. 1999 Deville smokes at idle
  88. 2002 Deville - Knock sensor ?
  89. 96 Deville - Misfire on #8
  90. MAP sensor location critical ?
  91. 93-94 Northstar Water Pump Tensioner
  92. Please post recommended Northstar Repair Shops in Florida
  93. Cradle won't drop on 98 STS
  94. Replaced old radiator due to crack, overheats with new radiator.. PLEASE HELP
  95. 4 Bad Headgaskets
  96. What is involved in swapping a 93 Edo vin9 with a 95 viny (is it doable) ?????
  97. Swap Nightmare
  98. 2000 Deville possible overheat
  99. EVAP code P 0442
  100. Deville Northtar engine swap and PCM problems
  101. 04 Deville - engine upgrades
  102. 2001 Deville: Won't stay running while in drive
  103. Nortstar engine removal.
  104. Engine overheat and oil in coolant - 2001 STS
  105. What do you like about your Northstar powered vehicle?
  106. Is it possible to remove the cams and keep the timing chain tensioner in place?
  107. Low coolant sensor
  108. 1999 STS leaking coolant
  109. My story: HG headgasket failure
  110. LH2 Swap - Issue starting
  111. Oil/coolant mixing
  112. Throttle Position Sensor relearn ??
  113. 2000 & up Seville air intake resonator
  114. 2001 Seville engine overhaul questions
  115. 2000 Deville Fuel Pressure Specs
  116. 2002 Deville rough idle
  117. 99 eldorado 02 sensors
  118. Oil Pressure Sending Unit - SRX
  119. P0308 #8 Misfire issue... Replaced a lot, still have issue
  120. 99 STS hard cold start. No codes, fpr tests ok and fuel is 44 psi running
  121. A method to remove Crankshaft bolt without locking the flywheel or using the starter.
  122. 2002 Deville AIR pump Vacuum line Routing
  123. 1999 Deville Headgasket - head job or total overhaul ?
  124. 2001 deville engine making kocking noise
  125. 2002 Deville Overheating after Thermostat replacement
  126. Water pump drive pulley
  127. Special tool for Northstar water pump drive pulley
  128. Reliability of 2005 and beyond Northstar-powered cars
  129. Harmonic Balancer Torque
  130. Need advice on who to do a Northstar head job in the Huntsville Alabama area
  131. NGK Spark plugs & coolant level message - 2003 Deville
  132. Get a Free set of Main Studs with Purchase of Sure Grip Cylinder Head Stud Kit
  133. Developed an engine whine... what is it?
  134. Please help with PCM issue on 1993 Allante
  135. limp mode..now misfire
  136. Water cooled alternator - what years/models ?
  137. O2 Sensors in a Hot Rod Set-up
  138. 2002 Northstar WOT, performance brakes, CORSA ?
  139. 1996 and later Northstar performance chips
  140. Magnaflows on a 2003 Deville
  141. socket down camshaft drive chain slot
  142. coolant drip middle front lower
  143. 2005 STS Camshaft Sensor Location? V8 4.6 engine
  144. Pcm issue or camshaft issue any help
  145. Rail / Injector Leak Deville 99
  146. Northstar chips, cold air intakes, and spark plugs
  147. coil on plug ignition modules
  148. Mystery Check Engine Light
  149. Only starts with starting fluid - '97 SLS
  150. 99 STS head gasket repair [ in car]
  151. Problem with 97 Eldorado. P 0300...
  152. 02 Cooling building back pressure. Purge line clear.
  153. 1998 STS coolant change
  154. Mystery Black Wire
  155. Oil pressure
  156. 98 deville, uses oil? but how
  157. What year is my Northstar motor, and what cars will it drop into?
  158. trouble with spark from coil packs
  159. Replace and Reprogram PCM 2001 DTS
  160. 1995 SLS - Poor idle quality
  161. Oil Pan Gasket and Permatex UltraGray placement
  162. 98 Deville, changing the coolant, sealant tabs?
  163. 2000 Deville Water Pump will Not Come Out
  164. Fuel pressure regulator
  165. 2003 Deville - exhaust steaming and coolant loss
  166. Can't remove Water Pump Drive pulley.. ever seen one that is stuck?
  167. Best Rear Main Seal Fix?
  168. Critique my coolant flush method
  169. Oil pressure light - 1998 Deville Northstar
  170. 1994 Eldorado thermostat replacement and coolant leak
  171. EGR Tubing
  172. '02 Seville was running fine, now it's not ?
  173. flex tube exhaust
  174. 01 Northstar Water in oil, high oil use, misses when cold.
  175. Coolant Leak Source? (pictures)
  176. When to reseal case halves?
  177. Look what I found in my engine!
  178. Puzzling Clattering Noise During Warm Startups
  179. HG's vs Pulled Threads
  180. Cat problems?
  181. Oil leaks on 1998 ElDorado
  182. 2000+ Intake Manifold on 1998 Northstar
  183. 2001 Deville - coolant boiling in reservoir
  184. Problem with my 1994 Eldorado engine - smoking
  185. code P 0171, P 0174 - solved
  186. Unable to communicate with the console cluster
  187. North Star Engine Disappointment (copy)
  188. SJ - API oil
  189. 97 ETC exhaust manifold fasterners.
  190. Fix the engine, (HG), replace the engine?
  191. Where does this go...?
  192. PCV Valve Elbow?
  193. Pics of my oil leaks
  194. combustion leak tester
  195. Anyone used Lucas Engine Stop Leak?
  196. Water pump issue, mostly? 1994 STS
  197. 98 Deville Water Pump Fail After Serpentine Belt Replaced
  198. Water Pump - Failing When Hot
  199. Oil Pan Leak?
  200. 2002 Deville misfire on Northstar
  201. I'm gonna do a block test today
  202. Car keeps overheating
  203. Service fuel system
  204. radiator cap # ?
  205. Northstar Loan-A-Tool Program, USA shipping on stud kits
  206. EGR Major Issues..help!
  207. 2000 Deville surging?
  208. 1998 STS crankshaft position sensors location
  209. Deville engine swaps and differences
  210. Water pump won't break
  211. New business pratices and standards coming into effect Apr 15/2014
  212. AIR pump on '99
  213. 1995 STS - multiple crank cold starts
  214. Pre-diagnosing HG issues?
  215. eldo running hot
  216. Which alternator? 94 Deville Concours
  217. My 1994 Deville 4.9 is starting to show some signs.
  218. 1999 deville - replaced water pump - running hot
  219. 2009 Buick Lucerne Headgasket
  220. The American V8 - Anatomy of a Hydrolock
  221. 2005 Deville oil pan seal leak
  222. Vacuum diagram
  223. 1997 STS - Long crank/start times - (Advice / Ideas)
  224. Lower crankcase reseal - 2005 Deville
  225. My sincerest apologies and also thanks -
  226. headbolt inserts
  227. Northstar and carbon cleaning
  228. Running but ............... 2001 Northstar
  229. 2000 DTS - no power
  230. To buy or not to buy.....1998 ESC
  231. 1996 DeVille flex plate replacement
  232. engine oil in intake manifold
  233. 2004 DTS Frustrations... misfires and SES
  234. 2000 SLS powertrain/ cradle removal
  235. 98 deville coolant smell?
  236. 02 N☆ Fuel Pressure
  237. Air intake upgrade - DTS Performance ?
  238. 2007 Engine Knock 4.6 Help
  239. The Caddy lives again - Life after the dreaded head leakage
  240. 1997 Deville - EGR remove & replace
  241. Northstar head bolt hole thread repair options
  242. Northstar Production Numbers 1993-2009
  243. 2000 STS - P 0300 - rough idle
  244. 2003 Seville EGR codes
  245. 2004 DHS - CMP location ?
  246. Mechinical buzzing noise from under hood ( 2002 Deville, 150,000)
  247. Blue devil and Norhtstar:
  248. Stalling issue - slow speeds - 1998 ETC
  249. Damaged throttle cable (1998 Deville)
  250. 2000 DTS - correct replacement engine ?