: Northstar Engines and System Technical Discussion



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  1. Northstar in a Fiero?
  2. Overheating problem - Deville
  3. 1995 Deville ignition Coil Replacement
  4. 99 STS Head Gaskets going... Again
  5. 2000 ETC oil leak
  6. Low Oil Pressure and Coolant Temperature Messages On
  7. What kind of code reader?
  8. 99- and 00+ Interchangeability
  9. Strange banging noise - 2002 STS with Japanese-speaking DIC
  10. Tuneup - 1998 Northstar
  11. 03 Deville Motor mount R/I Hrs?
  12. 2004 Deville plenum replacement ?
  13. 1997 STS - Starting Issues and Rough Idle
  14. any help would be great tranny will not shift
  15. serpentine belt replacement
  16. Another overheating thread
  17. 2004 DHS - hard start, engine run problems
  18. Jake - Northstar Performance - your in-box is FULL -
  19. Arizona Northstar repair shop ?
  20. 98 Eldorado water cooled alternator doesn't charge when cold
  21. 1994 Eldorado - coolant leaks
  22. Coppery substance in coolant?
  23. problem with torque converter bolts
  24. 1999 Deville 4.6 Base misfire code
  25. Pre 2000 Northstar Crankshaft Position Sensors
  26. Replacing Coolant Crossover
  27. cooling system seal tablet
  28. 2002 STS Coolant Crossover Gaskets
  29. head gasket
  30. Suprise... Headgaskets
  31. Cost to replace oil pan gasket?
  32. Need help - considering a Northstar build for an ElCamino
  33. Dipstick reading
  34. North Star head bolt problem
  35. Spark plugs - 1997 Y Northstar
  36. first Cadillac questons about Northstar
  37. Head Bolt/stud question
  38. Just bought a 1995 Eldorado..was wondering what I should be looking at for maintenane
  39. 1999 SLS - apparent overheating ?
  40. Engine tap
  41. Compression And Leak Down Results.....Cam/Valve Timing Observation Discussion
  42. Why at the beginning of fuel rail and not end?
  43. 1999 DeVille coolant leak
  44. '97-won't start (fire)
  45. My Grandmothers Friend's 2000 STS has Misfire. She has a question
  46. P0507 Idle speed high after engine removal
  47. Engine block identification
  48. Cylinder Head Problems - 2005 DTS
  49. '99 Northstar head bolt torque values
  50. 1996 Deville - no fuel at the rail
  51. 2003 Deville idle air control valve
  52. 2000 Deville - dead batteries, no crank
  53. Engine cradle pulling down...
  54. 1996 Concours Oxygen Sensors
  55. 2000 - 2004 PCV piping question
  56. Help with a possible head gasket issue...2002 SLS
  57. Northstar 2001 Head Gasket Repair - Charlotte, North Carolina
  58. Northstar Engine Problems, were they ever corrected in production by GM??
  59. Anyone Ever Use A Company In Jersey Called Top Line Auto Care
  60. surge tank cap pressure
  61. Heater Pipe Adapter Part #?
  62. What Is This Gasket
  63. Northstar fuel fouling on Bank 2 good on Bank 1
  64. Thought I'd never buy another Northstar but...
  65. 2002 DTS transmission codes P 1860, P 0741
  66. Head gasket replacement
  67. Introduction - 1997 SLS with problems
  68. engine swap 2004 to a 1997 deville
  69. Northstar Engine Build Center, Batavia, NY - Northstar Performance LLC
  70. Snapped Main Bearing Bolts
  71. Head gasket question
  72. '97 DeVille NorthStar location of oil pressure switch?
  73. 2005 STS - Northstar longevity
  74. Cam Removal
  75. 2002 STS More Horsepower (Solid & Safe)
  76. Manifold over pressure valve - 1996 Northstar
  77. 2005 Deville 48k mi rough idle in morning. Thinking it could be HG issue.
  78. Not ready to give up - 1997 VIN Y Deville engine work
  79. 1999 STS Losing Coolant Possible Head Gasket
  80. Northstar wine
  81. Northstar Performance - officially offering custom PCM tuning January 2015
  82. Fuel rail and injector work on 2002 Deville
  83. Northstar VIN 9 - 2002 - engine exhaust work
  84. oil in coolant-'99 deville
  85. Northstar using excessive oil
  86. 2002 Deville AIR pump cover replacement
  87. 2002 Northstar VIN Y>9 cam swap and P/N questions - cam TSB
  88. 97 deville Help with rear coolant leak
  89. Boost and engine management - 1997 Eldorado base
  90. Cam cover bolts loose
  91. Possible HG leak in '01 SLS
  92. Upper front coolant pipe- 2000 ESC
  93. Northstar Motor Swap - 2008 into 2001 car
  94. Weird oil leak - 2002 Deville
  95. 02 Deville base different color valve covers?
  96. Northstar flexplate bolt circle question
  97. LH2 swap into another car ; questions about the northstar and computer
  98. Northstar rebuild 01 eldo
  99. No acceleration... 2003 Deville
  100. 2000 Deville misfire cylinders 1 and 2
  101. Should this come off easily?
  102. Northstar exercise and driving style
  103. 2003 Deville starter motor location
  104. 1993 4.6L Northstar engine swap into hotrod project.
  105. Whining noise at startup - 2001 Eldorado
  106. Rough idle 99'
  107. Installing a crank kit in a 99 sls
  108. very quick temp spike then normal
  109. $150 made $1,000 worth of difference
  110. Question & Video of movement in secondary cam chain
  111. 1994 SLS no-start problems
  112. What is a good operating temperature?
  113. P0336 -Crankshaft Position Sensor 'A'
  114. How to tell which valve lash adjuster is faulty.
  115. Time for HG repair
  116. icm (ignition control module) problem keeps going out
  117. How to know if you have already entered some inserts in my engine?
  118. 2000 Northstar Strange Starter Issue?
  119. 99 Northstar rebuild questions
  120. Northstars sorted out yet?
  121. 4.6 white smoke issue
  122. Northstar and a turbo
  123. 2003 Deville misfire when warm
  124. 02 Deville 90k - low idle
  125. Need bolt torque specs: Flywheel, Torque Converter, Trans bolts.
  126. All of a sudden 2003 Deville developed a miss
  127. Northstar swap wiring harness question
  128. Please post a State & City guide to Northstar Head Gasket repair shops that you know
  129. replacing the oil pan in a 2000 deville
  130. Northstar - AIR valves ?
  131. 1994 N* Fuel Pressure Regulator
  132. New Northstar Engines
  133. Timing Chain Guide Adapt - 98+ to the old style engines
  134. 97' ETC check engine gives all O2 codes
  135. Northstar Overhaul Shop near Southern Maine, NH or MA
  136. Finished Replacement Front Engine Mount
  137. Studs officially shipping from the USA - thanks to JoeTahoe
  138. what to check when buying a northstar?
  139. Can I run 40W or 50w OIL on my NORTHSTAR 4.6? I live in very HOT WEATHER
  140. How to check for Hydrolock?
  141. 1999 Deville smokes at idle
  142. 2002 Deville - Knock sensor ?
  143. 96 Deville - Misfire on #8
  144. MAP sensor location critical ?
  145. 93-94 Northstar Water Pump Tensioner
  146. Please post recommended Northstar Repair Shops in Florida
  147. Cradle won't drop on 98 STS
  148. Replaced old radiator due to crack, overheats with new radiator.. PLEASE HELP
  149. 4 Bad Headgaskets
  150. What is involved in swapping a 93 Edo vin9 with a 95 viny (is it doable) ?????
  151. Swap Nightmare
  152. 2000 Deville possible overheat
  153. EVAP code P 0442
  154. Deville Northtar engine swap and PCM problems
  155. 04 Deville - engine upgrades
  156. 2001 Deville: Won't stay running while in drive
  157. Nortstar engine removal.
  158. Engine overheat and oil in coolant - 2001 STS
  159. What do you like about your Northstar powered vehicle?
  160. Is it possible to remove the cams and keep the timing chain tensioner in place?
  161. Low coolant sensor
  162. 1999 STS leaking coolant
  163. My story: HG headgasket failure
  164. LH2 Swap - Issue starting
  165. Oil/coolant mixing
  166. Throttle Position Sensor relearn ??
  167. 2000 & up Seville air intake resonator
  168. 2001 Seville engine overhaul questions
  169. 2000 Deville Fuel Pressure Specs
  170. 2002 Deville rough idle
  171. 99 eldorado 02 sensors
  172. Oil Pressure Sending Unit - SRX
  173. P0308 #8 Misfire issue... Replaced a lot, still have issue
  174. 99 STS hard cold start. No codes, fpr tests ok and fuel is 44 psi running
  175. A method to remove Crankshaft bolt without locking the flywheel or using the starter.
  176. 2002 Deville AIR pump Vacuum line Routing
  177. 1999 Deville Headgasket - head job or total overhaul ?
  178. 2001 deville engine making kocking noise
  179. 2002 Deville Overheating after Thermostat replacement
  180. Water pump drive pulley
  181. Special tool for Northstar water pump drive pulley
  182. Reliability of 2005 and beyond Northstar-powered cars
  183. Harmonic Balancer Torque
  184. Need advice on who to do a Northstar head job in the Huntsville Alabama area
  185. NGK Spark plugs & coolant level message - 2003 Deville
  186. Get a Free set of Main Studs with Purchase of Sure Grip Cylinder Head Stud Kit
  187. Developed an engine whine... what is it?
  188. Please help with PCM issue on 1993 Allante
  189. limp mode..now misfire
  190. Water cooled alternator - what years/models ?
  191. O2 Sensors in a Hot Rod Set-up
  192. 2002 Northstar WOT, performance brakes, CORSA ?
  193. 1996 and later Northstar performance chips
  194. Magnaflows on a 2003 Deville
  195. socket down camshaft drive chain slot
  196. coolant drip middle front lower
  197. 2005 STS Camshaft Sensor Location? V8 4.6 engine
  198. Pcm issue or camshaft issue any help
  199. Rail / Injector Leak Deville 99
  200. Northstar chips, cold air intakes, and spark plugs
  201. coil on plug ignition modules
  202. Mystery Check Engine Light
  203. Only starts with starting fluid - '97 SLS
  204. 99 STS head gasket repair [ in car]
  205. Problem with 97 Eldorado. P 0300...
  206. 02 Cooling building back pressure. Purge line clear.
  207. 1998 STS coolant change
  208. Mystery Black Wire
  209. Oil pressure
  210. 98 deville, uses oil? but how
  211. What year is my Northstar motor, and what cars will it drop into?
  212. trouble with spark from coil packs
  213. Replace and Reprogram PCM 2001 DTS
  214. 1995 SLS - Poor idle quality
  215. Oil Pan Gasket and Permatex UltraGray placement
  216. 98 Deville, changing the coolant, sealant tabs?
  217. 2000 series Northstar water pump will not come out
  218. Fuel pressure regulator
  219. 2003 Deville - exhaust steaming and coolant loss
  220. Can't remove Water Pump Drive pulley.. ever seen one that is stuck?
  221. Best Rear Main Seal Fix?
  222. Critique my coolant flush method
  223. Oil pressure light - 1998 Deville Northstar
  224. 1994 Eldorado thermostat replacement and coolant leak
  225. EGR Tubing
  226. '02 Seville was running fine, now it's not ?
  227. flex tube exhaust
  228. 01 Northstar Water in oil, high oil use, misses when cold.
  229. Coolant Leak Source? (pictures)
  230. When to reseal case halves?
  231. Look what I found in my engine!
  232. Puzzling Clattering Noise During Warm Startups
  233. HG's vs Pulled Threads
  234. Cat problems?
  235. Oil leaks on 1998 ElDorado
  236. 2000+ Intake Manifold on 1998 Northstar
  237. 2001 Deville - coolant boiling in reservoir
  238. Problem with my 1994 Eldorado engine - smoking
  239. code P 0171, P 0174 - solved
  240. Unable to communicate with the console cluster
  241. North Star Engine Disappointment (copy)
  242. SJ - API oil
  243. 97 ETC exhaust manifold fasterners.
  244. Fix the engine, (HG), replace the engine?
  245. Where does this go...?
  246. PCV Valve Elbow?
  247. Pics of my oil leaks
  248. combustion leak tester
  249. Anyone used Lucas Engine Stop Leak?
  250. Water pump issue, mostly? 1994 STS