: Northstar Engines and System Technical Discussion



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  1. North Star head bolt problem
  2. Spark plugs - 1997 Y Northstar
  3. first Cadillac questons about Northstar
  4. Head Bolt/stud question
  5. Just bought a 1995 Eldorado..was wondering what I should be looking at for maintenane
  6. 1999 SLS - apparent overheating ?
  7. Engine tap
  8. Compression And Leak Down Results.....Cam/Valve Timing Observation Discussion
  9. Why at the beginning of fuel rail and not end?
  10. 1999 DeVille coolant leak
  11. '97-won't start (fire)
  12. My Grandmothers Friend's 2000 STS has Misfire. She has a question
  13. P0507 Idle speed high after engine removal
  14. Engine block identification
  15. Cylinder Head Problems - 2005 DTS
  16. '99 Northstar head bolt torque values
  17. 1996 Deville - no fuel at the rail
  18. 2000 Deville - dead batteries, no crank
  19. Engine cradle pulling down...
  20. 1996 Concours Oxygen Sensors
  21. 2000 - 2004 PCV piping question
  22. Help with a possible head gasket issue...2002 SLS
  23. Northstar 2001 Head Gasket Repair - Charlotte, North Carolina
  24. Northstar Engine Problems, were they ever corrected in production by GM??
  25. Anyone Ever Use A Company In Jersey Called Top Line Auto Care
  26. surge tank cap pressure
  27. Heater Pipe Adapter Part #?
  28. What Is This Gasket
  29. Northstar fuel fouling on Bank 2 good on Bank 1
  30. Thought I'd never buy another Northstar but...
  31. 2002 DTS transmission codes P 1860, P 0741
  32. Head gasket replacement
  33. Introduction - 1997 SLS with problems
  34. engine swap 2004 to a 1997 deville
  35. Northstar Engine Build Center, Batavia, NY - Northstar Performance LLC
  36. Snapped Main Bearing Bolts
  37. Head gasket question
  38. '97 DeVille NorthStar location of oil pressure switch?
  39. 2005 STS - Northstar longevity
  40. Cam Removal
  41. 2002 STS More Horsepower (Solid & Safe)
  42. Manifold over pressure valve - 1996 Northstar
  43. 2005 Deville 48k mi rough idle in morning. Thinking it could be HG issue.
  44. Not ready to give up - 1997 VIN Y Deville engine work
  45. 1999 STS Losing Coolant Possible Head Gasket
  46. Northstar wine
  47. Northstar Performance - officially offering custom PCM tuning January 2015
  48. Fuel rail and injector work on 2002 Deville
  49. Northstar VIN 9 - 2002 - engine exhaust work
  50. oil in coolant-'99 deville
  51. Northstar using excessive oil
  52. 2002 Deville AIR pump cover replacement
  53. 2002 Northstar VIN Y>9 cam swap and P/N questions - cam TSB
  54. 97 deville Help with rear coolant leak
  55. Boost and engine management - 1997 Eldorado base
  56. Cam cover bolts loose
  57. Possible HG leak in '01 SLS
  58. Upper front coolant pipe- 2000 ESC
  59. Northstar Motor Swap - 2008 into 2001 car
  60. Weird oil leak - 2002 Deville
  61. 02 Deville base different color valve covers?
  62. Northstar flexplate bolt circle question
  63. LH2 swap into another car ; questions about the northstar and computer
  64. Northstar rebuild 01 eldo
  65. No acceleration... 2003 Deville
  66. 2000 Deville misfire cylinders 1 and 2
  67. Should this come off easily?
  68. Northstar exercise and driving style
  69. 2003 Deville starter motor location
  70. 1993 4.6L Northstar engine swap into hotrod project.
  71. Whining noise at startup - 2001 Eldorado
  72. Rough idle 99'
  73. Installing a crank kit in a 99 sls
  74. very quick temp spike then normal
  75. $150 made $1,000 worth of difference
  76. Question & Video of movement in secondary cam chain
  77. 1994 SLS no-start problems
  78. What is a good operating temperature?
  79. P0336 -Crankshaft Position Sensor 'A'
  80. How to tell which valve lash adjuster is faulty.
  81. Time for HG repair
  82. icm (ignition control module) problem keeps going out
  83. How to know if you have already entered some inserts in my engine?
  84. 2000 Northstar Strange Starter Issue?
  85. 99 Northstar rebuild questions
  86. Northstars sorted out yet?
  87. 4.6 white smoke issue
  88. Northstar and a turbo
  89. 2003 Deville misfire when warm
  90. 02 Deville 90k - low idle
  91. Need bolt torque specs: Flywheel, Torque Converter, Trans bolts.
  92. All of a sudden 2003 Deville developed a miss
  93. Northstar swap wiring harness question
  94. Any shops that know the N* near Ft. Walton Beach,FL ?
  95. replacing the oil pan in a 2000 deville
  96. Northstar - AIR valves ?
  97. 1994 N* Fuel Pressure Regulator
  98. New Northstar Engines
  99. Timing Chain Guide Adapt - 98+ to the old style engines
  100. 97' ETC check engine gives all O2 codes
  101. Northstar Overhaul Shop near Southern Maine, NH or MA
  102. Finished Replacement Front Engine Mount
  103. Studs officially shipping from the USA - thanks to JoeTahoe
  104. what to check when buying a northstar?
  105. Can I run 40W or 50w OIL on my NORTHSTAR 4.6? I live in very HOT WEATHER
  106. How to check for Hydrolock?
  107. 1999 Deville smokes at idle
  108. 2002 Deville - Knock sensor ?
  109. 96 Deville - Misfire on #8
  110. MAP sensor location critical ?
  111. 93-94 Northstar Water Pump Tensioner
  112. Please post recommended Northstar Repair Shops in Florida
  113. Cradle won't drop on 98 STS
  114. Replaced old radiator due to crack, overheats with new radiator.. PLEASE HELP
  115. 4 Bad Headgaskets
  116. What is involved in swapping a 93 Edo vin9 with a 95 viny (is it doable) ?????
  117. Swap Nightmare
  118. 2000 Deville possible overheat
  119. EVAP code P 0442
  120. Deville Northtar engine swap and PCM problems
  121. 04 Deville - engine upgrades
  122. 2001 Deville: Won't stay running while in drive
  123. Nortstar engine removal.
  124. Engine overheat and oil in coolant - 2001 STS
  125. What do you like about your Northstar powered vehicle?
  126. Is it possible to remove the cams and keep the timing chain tensioner in place?
  127. Low coolant sensor
  128. 1999 STS leaking coolant
  129. My story: HG headgasket failure
  130. LH2 Swap - Issue starting
  131. Oil/coolant mixing
  132. Throttle Position Sensor relearn ??
  133. 2000 & up Seville air intake resonator
  134. 2001 Seville engine overhaul questions
  135. 2000 Deville Fuel Pressure Specs
  136. 2002 Deville rough idle
  137. 99 eldorado 02 sensors
  138. Oil Pressure Sending Unit - SRX
  139. P0308 #8 Misfire issue... Replaced a lot, still have issue
  140. 99 STS hard cold start. No codes, fpr tests ok and fuel is 44 psi running
  141. A method to remove Crankshaft bolt without locking the flywheel or using the starter.
  142. 2002 Deville AIR pump Vacuum line Routing
  143. 1999 Deville Headgasket - head job or total overhaul ?
  144. 2001 deville engine making kocking noise
  145. 2002 Deville Overheating after Thermostat replacement
  146. Water pump drive pulley
  147. Special tool for Northstar water pump drive pulley
  148. Reliability of 2005 and beyond Northstar-powered cars
  149. Harmonic Balancer Torque
  150. Need advice on who to do a Northstar head job in the Huntsville Alabama area
  151. NGK Spark plugs & coolant level message - 2003 Deville
  152. Get a Free set of Main Studs with Purchase of Sure Grip Cylinder Head Stud Kit
  153. Developed an engine whine... what is it?
  154. Please help with PCM issue on 1993 Allante
  155. limp mode..now misfire
  156. Water cooled alternator - what years/models ?
  157. O2 Sensors in a Hot Rod Set-up
  158. 2002 Northstar WOT, performance brakes, CORSA ?
  159. 1996 and later Northstar performance chips
  160. Magnaflows on a 2003 Deville
  161. socket down camshaft drive chain slot
  162. coolant drip middle front lower
  163. 2005 STS Camshaft Sensor Location? V8 4.6 engine
  164. Pcm issue or camshaft issue any help
  165. Rail / Injector Leak Deville 99
  166. Northstar chips, cold air intakes, and spark plugs
  167. coil on plug ignition modules
  168. Mystery Check Engine Light
  169. Only starts with starting fluid - '97 SLS
  170. 99 STS head gasket repair [ in car]
  171. Problem with 97 Eldorado. P 0300...
  172. 02 Cooling building back pressure. Purge line clear.
  173. 1998 STS coolant change
  174. Mystery Black Wire
  175. Oil pressure
  176. 98 deville, uses oil? but how
  177. What year is my Northstar motor, and what cars will it drop into?
  178. trouble with spark from coil packs
  179. Replace and Reprogram PCM 2001 DTS
  180. 1995 SLS - Poor idle quality
  181. Oil Pan Gasket and Permatex UltraGray placement
  182. 98 Deville, changing the coolant, sealant tabs?
  183. 2000 series Northstar water pump will not come out
  184. Fuel pressure regulator
  185. 2003 Deville - exhaust steaming and coolant loss
  186. Can't remove Water Pump Drive pulley.. ever seen one that is stuck?
  187. Best Rear Main Seal Fix?
  188. Critique my coolant flush method
  189. Oil pressure light - 1998 Deville Northstar
  190. 1994 Eldorado thermostat replacement and coolant leak
  191. EGR Tubing
  192. '02 Seville was running fine, now it's not ?
  193. flex tube exhaust
  194. 01 Northstar Water in oil, high oil use, misses when cold.
  195. Coolant Leak Source? (pictures)
  196. When to reseal case halves?
  197. Look what I found in my engine!
  198. Puzzling Clattering Noise During Warm Startups
  199. HG's vs Pulled Threads
  200. Cat problems?
  201. Oil leaks on 1998 ElDorado
  202. 2000+ Intake Manifold on 1998 Northstar
  203. 2001 Deville - coolant boiling in reservoir
  204. Problem with my 1994 Eldorado engine - smoking
  205. code P 0171, P 0174 - solved
  206. Unable to communicate with the console cluster
  207. North Star Engine Disappointment (copy)
  208. SJ - API oil
  209. 97 ETC exhaust manifold fasterners.
  210. Fix the engine, (HG), replace the engine?
  211. Where does this go...?
  212. PCV Valve Elbow?
  213. Pics of my oil leaks
  214. combustion leak tester
  215. Anyone used Lucas Engine Stop Leak?
  216. Water pump issue, mostly? 1994 STS
  217. 98 Deville Water Pump Fail After Serpentine Belt Replaced
  218. Water Pump - Failing When Hot
  219. Oil Pan Leak?
  220. 2002 Deville misfire on Northstar
  221. I'm gonna do a block test today
  222. Car keeps overheating
  223. Service fuel system
  224. radiator cap # ?
  225. Northstar Loan-A-Tool Program, USA shipping on stud kits
  226. EGR Major Issues..help!
  227. 2000 Deville surging?
  228. 1998 STS crankshaft position sensors location
  229. Deville engine swaps and differences
  230. Water pump won't break
  231. New business pratices and standards coming into effect Apr 15/2014
  232. AIR pump on '99
  233. 1995 STS - multiple crank cold starts
  234. Pre-diagnosing HG issues?
  235. eldo running hot
  236. Which alternator? 94 Deville Concours
  237. My 1994 Deville 4.9 is starting to show some signs.
  238. 1999 deville - replaced water pump - running hot
  239. 2009 Buick Lucerne Headgasket
  240. The American V8 - Anatomy of a Hydrolock
  241. 2005 Deville oil pan seal leak
  242. Vacuum diagram
  243. 1997 STS - Long crank/start times - (Advice / Ideas)
  244. Lower crankcase reseal - 2005 Deville
  245. My sincerest apologies and also thanks -
  246. headbolt inserts
  247. Northstar and carbon cleaning
  248. Running but ............... 2001 Northstar
  249. 2000 DTS - no power
  250. To buy or not to buy.....1998 ESC