: Northstar Engines and System Technical Discussion



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