: Northstar Engines and System Technical Discussion



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  1. STS low power
  2. Northstar engine miss
  3. 2002 Deville P3008 code
  4. Real Performance Parts for the L37
  5. HELP outta town with tranny issues
  6. Cooling fans and hard driving- temp spikes
  7. Convert 98 SLS motor into STS motor?
  8. NO Codes but stalls...
  9. Stand-alone Northstar engine/trans for swap
  10. 4T80E solenoid shift replacement
  11. N* Swap with Factory ECM and avoiding DTC's
  12. Vin lookup for engine history
  13. 1999 STS Traction Control off......Unable to turn it on.
  14. 98 deville no fan / tech 2 commanded fan on
  15. 1999 Cadillac Seville OVERHEATING :(
  16. Any differences in an Export N* Engine and a Domestic One?
  17. To much Antifreez
  18. Synthetic or Regular Oil in 08 Escalade ESV?
  19. Stalling when wet
  20. 1998 STS : Code v
  21. 02 Deville plenum question
  22. MSD Timing Controller - Question for AJ
  23. Cranshaft Main Bolts
  24. Rear Main Seal Install
  25. Where to find coolant test?
  26. Can I put a 2001 Northstar in a 1997 Eldorado?
  27. Major coolant leak
  28. I think i'm ready
  29. what to look for buying a used northstar powered car
  30. Happy ending to overheating problem
  31. 2000 sts
  32. Fully Polished Aluminum Strut Tower Brace for 98+Seville and 00+ Deville
  33. o2 sensor thread repair
  34. Bypass AC pump 94 Eldorado
  35. Northstar oil leak, main bolts
  36. 1993 Eldorado Northstar running rough
  37. Limp Mode?
  38. STS N* Rough Idle/Miss at Startup
  39. northstar aurora alternator
  40. Swap 4.9l v8 and 4.6l v8 northstar
  41. '99 STS stuck water water pump
  42. Water pump drive pulley
  43. heater on bench 1?
  44. Hello all
  45. wide engine temp swing
  46. Oil pan gasket
  47. I allmost died in my sts !!!!!, P065 drives itself
  48. 1993 seville STS
  49. cooling fan electrical diagram
  50. Fuel Injectors Revisited
  51. head gasket replacement in louisville kentucky area
  52. Cam Replacement in Car
  53. Northstar block #'s info needed on a used engine.
  54. oil filter for northstar
  55. 2000 sls overheating
  56. SLS overheating help? please?
  57. testing for bad HG
  58. 94 STS Coolant leak between block and flywheel
  59. Valve cover gaskets
  60. Hitting rev limiter in idle after startup
  61. Bad news Very Bad news
  62. EGR symptoms
  63. fuel pumps
  64. manifold pressure sensor or mat sensor
  65. Transaxle interchange
  66. TSB for Oil Consumption
  67. N*** PCM hacking Help
  68. Increasing fuel efficiency
  69. 94 Eldorado 4.6 High Idle
  70. photo shop help
  71. high engine rpm at start up
  72. Is it possible to have digital temperature display on 2002 deville ?
  73. 99 STS metallic ticking noise from valve area
  74. Bonneville GXP 1/4 mile times
  75. Time Serts, Norm's, SureGrip Stud Kit??????
  76. p080
  77. 2004 Deville 275hp... a good buy?
  78. I would like to 'update' the Performance Parts Mega-Post
  79. Questions for Ranger and Submariner409
  80. Cleaning Engine what do i cover?
  81. Any Ideas? No codes, backfire, sputter & parking brake get stuck
  82. dropping cradle: what would you replace preemptively
  83. HG and Timesert in car
  84. 1993 Cadillac Seville STS 4.6l engine bog
  85. Shoud i replace input speed sensor on 2002 deville 140k
  86. Go with studs and get warranty on a DIY HG job
  87. 2002 deville HEAD JOB and MORE --PLEASE HELP
  88. Help. 99 sts dash clicking?
  89. The ever present "miss"
  90. new engine ...?
  91. Code P0603
  92. Fire!!! Eh, not so bad..
  93. Fuel pump removal pictures
  94. No more HG jobs. I'm finished.
  95. More problems after a HG job- or are they?
  96. 02 dts high idle prob
  97. What 2 Do About GM's OHC V8 Engine.... How about the Mainstreaming of the 4.4L SC NS?
  98. 94-99 vs. 2000+ N* Oil issues
  99. RWD Northstar
  100. Running a 2005 N* on a 2006 N* PCM
  101. intake blow off flap
  102. PO155 (HO2S) Code
  103. 95 devile no heat on driver side help
  104. Clever stuff...I think?
  105. trading up
  106. Has anyone tried to put sc 3800 v6?
  107. What gives ?
  108. What is the probability of head gasket failure?
  109. Fuel Pump removal
  110. Like my N* but
  111. Motor will be coming back out after HG job!
  112. Check engine light ?
  113. 1997 deville hard start warm engine
  114. Low mileage Northstar
  115. 00 DTS Falls Flat on Face
  116. Fuel Pump repair kit
  117. Compression test for a head gasket failure
  118. Built Buick Lucerne (400HP Northstar Engine)
  119. Head Gasket Repair in Alaska
  120. Headgasket test kit ?
  121. 97 & 99 deville engine swap??????
  122. Problems After HG job!
  123. Cooling Fans
  124. P0300 and just filled coolant
  125. 01 northstar for sale
  126. northstar power
  127. 1998 STS stalling at idle
  128. New '98 Deville Owner with coolant questions
  129. Find the oil leak
  130. $28 Combustion Leak Tester Kit (Lisle)
  131. Vacuun ports on the northstar
  132. TCC converter stuck off
  133. 2002 Cadillac Deville Rad Flush tips?
  134. 99 Cadillac Seville
  135. EGR or something worse? Please help! '96 SLS
  136. adding oil between oil changes
  137. Mods for transmission during HG job?
  138. 98 SLS with valve noise - ????
  139. 98 sts northstar engine swap
  140. Coolant Question
  141. Part Number: Camshaft seal @ water pump pulley?
  142. Supercharge Your NorthStar for Free.
  143. GIVING AWAY 97 & 98 DEVILLES u pay ship
  144. Engine swap????????
  145. Freebie!
  146. How to install an Eaton/GM M90 Supercharger on a 2003 Northstar
  147. Cam Shaft Bolts!!!
  148. 95 Seville SLS cold start problem with instant fuel pressure drop.
  149. 2003 dhs p0300
  150. Just one glitch left '93 North* %$#@!!
  151. replace or rebuild???? northstar
  152. 2000 DeVille oil filter
  153. Where can I get an engine overhaul kit for 97 4.6L Northstar?
  154. blown head gasket test kit
  155. Stubborn Water Pump Removal
  156. 4.6l N* knocks in cold weather, but quiets after operating temp is reached.
  157. Convert OBDII Northstar to OBDI ???
  158. Timing chain routing??
  159. Northstar 6 Speed Manual
  160. New ECM option for Northstar swappers
  161. Arrrghh Won't start
  162. Seville Filter
  163. Cadillac N* redesign is the fastest TQ. Converter?
  164. help identify the problem !
  165. loss of power
  166. Transmission Removal/replacement
  167. Camshaft install bolt pattern
  168. instaling water pump pulley
  169. Source/Recommendations for Rebuilt Northstar Engines?
  170. Stumble at hot idle, stalling
  171. detonation-preignition
  172. 95 Eldorado has SLOW starting Issue.
  173. Problem after 99 STS Headbolt stripped and repaired
  174. Guide Pin / Alignment Pin Removal The Easy Way
  175. My Northstar is running...
  176. 94 Concours intermittant no start
  177. Unique engine swap, need help deciding which N*
  178. Having a lil trouble holding 4th
  179. 2003 Northstar into a 2001 Deville
  180. TCC Solenoid - Please Help!!
  181. Where did the MPG go?
  182. Intake manifold
  183. 01 SLS Problems
  184. Anyone ever do a headgasket in the car?
  185. traction control input and output data
  186. Fly wheel/starter prof replaced, now oil leak?
  187. Keep getting same code.
  188. Cold starts not so good...
  189. 2001 DTS valvetrain noise after HG job?!
  190. Half Case Seal....
  191. P0153 - HO2S Slow Response Bank 2 Sensor 1
  192. Oil leak on STS, oil pan?
  193. 1994 eldorado coolant leak
  194. failed smog test again. the HC is still high @15MPH
  195. what resonator reduces drone, but not volume? (corsa not option)
  196. Water crossover parts to replace?
  197. intake and top cover 94 Seville STS 4.6
  198. 00 STS Air Pumps; how many of them?
  199. oil pressure
  200. Have a Northstar engine, what should I do with it?
  201. Code help...please!!!!!
  202. Help with o2 sensor--no cat--code p0146
  203. Anyone here an attorney - re: Head gasket failures?
  204. what happend to my kruella
  205. 6 of 8 spark plugs are oily!
  206. Code Assistance
  207. HG cause emissions test failure?
  208. new DTS. wide open throttle?
  209. Quick question: about to order from Rockauto
  210. Remote start
  211. 01 dhs over heating HELP!! PLEASE
  212. Questions about my Headgasket Job
  213. Curse stop leak and fast talking sales men!!
  214. Onboard computer and the octane rating of the fuel being used.
  215. 99 Deville Northstar-New fuel pump, but wont start
  216. need help on north star wire replacing...
  217. codes 073 and 1644
  218. Ranger Should Write a Caddy What to Expect Book
  219. 1st Annual Northstar Meet
  220. Dtc 730
  221. Northstar Stud Kits ready to ship!
  222. 98 SLS screeching noise from egen.
  223. ICM weak spark, have questions
  224. How to drop the cradle?
  225. Wheres my coolant going????
  226. front driver o2 sensor, where do connector wire lead to??
  227. Just got Headgaskets done. Still yellow liquid.
  228. Alternator Bearing Replacement?
  229. 01 STS Cracked Block Rebuilt Engine Recomendations
  230. Didn't pass emission. Got a high NO. Shouldn't use regular Gas(87)?
  231. A spike in coolant temp '93 North*
  232. 2007 XLR 4.6 in a Hot Rod!
  233. Testing MAF Sensor on '97 N* ??
  234. 02 SLS not liking the cold weather
  235. New Eldo Owner: Speed Limiter Question
  236. Damned Motor Mounts
  237. weak fuel pump question
  238. Low oil pressure/stop engine message
  239. '03 SLS - "Surges" at slowdown and stoplights
  240. torque convertor clutch solenoid
  241. Service Electrical System
  242. EGR Removal / Steel fuel rails
  243. advice needed - stubborn tight spark plug
  244. Motor swap,
  245. "97 DeVille B1S1 Oxygen Sensor
  246. I need help
  247. Track times
  248. Coolant leak when driving
  249. 96 SLS Electrical Charge System Gremlin
  250. P 420 code-what does it mean?