: Northstar Engines and System Technical Discussion



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