: Northstar Engines and System Technical Discussion



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