: Northstar Engines and System Technical Discussion



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  1. Bad news Very Bad news
  2. EGR symptoms
  3. fuel pumps
  4. manifold pressure sensor or mat sensor
  5. Transaxle interchange
  6. TSB for Oil Consumption
  7. N*** PCM hacking Help
  8. Increasing fuel efficiency
  9. 94 Eldorado 4.6 High Idle
  10. photo shop help
  11. high engine rpm at start up
  12. Is it possible to have digital temperature display on 2002 deville ?
  13. 99 STS metallic ticking noise from valve area
  14. Bonneville GXP 1/4 mile times
  15. Time Serts, Norm's, SureGrip Stud Kit??????
  16. p080
  17. 2004 Deville 275hp... a good buy?
  18. I would like to 'update' the Performance Parts Mega-Post
  19. Questions for Ranger and Submariner409
  20. Cleaning Engine what do i cover?
  21. Any Ideas? No codes, backfire, sputter & parking brake get stuck
  22. dropping cradle: what would you replace preemptively
  23. HG and Timesert in car
  24. 1993 Cadillac Seville STS 4.6l engine bog
  25. Shoud i replace input speed sensor on 2002 deville 140k
  26. Go with studs and get warranty on a DIY HG job
  27. 2002 deville HEAD JOB and MORE --PLEASE HELP
  28. Help. 99 sts dash clicking?
  29. The ever present "miss"
  30. new engine ...?
  31. Code P0603
  32. Fire!!! Eh, not so bad..
  33. Fuel pump removal pictures
  34. No more HG jobs. I'm finished.
  35. More problems after a HG job- or are they?
  36. 02 dts high idle prob
  37. What 2 Do About GM's OHC V8 Engine.... How about the Mainstreaming of the 4.4L SC NS?
  38. 94-99 vs. 2000+ N* Oil issues
  39. RWD Northstar
  40. Running a 2005 N* on a 2006 N* PCM
  41. intake blow off flap
  42. PO155 (HO2S) Code
  43. 95 devile no heat on driver side help
  44. Clever stuff...I think?
  45. trading up
  46. Has anyone tried to put sc 3800 v6?
  47. What gives ?
  48. What is the probability of head gasket failure?
  49. Fuel Pump removal
  50. Like my N* but
  51. Motor will be coming back out after HG job!
  52. Check engine light ?
  53. 1997 deville hard start warm engine
  54. Low mileage Northstar
  55. 00 DTS Falls Flat on Face
  56. Fuel Pump repair kit
  57. Compression test for a head gasket failure
  58. Built Buick Lucerne (400HP Northstar Engine)
  59. Head Gasket Repair in Alaska
  60. Headgasket test kit ?
  61. 97 & 99 deville engine swap??????
  62. Problems After HG job!
  63. Cooling Fans
  64. P0300 and just filled coolant
  65. 01 northstar for sale
  66. northstar power
  67. 1998 STS stalling at idle
  68. New '98 Deville Owner with coolant questions
  69. Find the oil leak
  70. $28 Combustion Leak Tester Kit (Lisle)
  71. Vacuun ports on the northstar
  72. TCC converter stuck off
  73. 2002 Cadillac Deville Rad Flush tips?
  74. 99 Cadillac Seville
  75. EGR or something worse? Please help! '96 SLS
  76. adding oil between oil changes
  77. Mods for transmission during HG job?
  78. 98 SLS with valve noise - ????
  79. 98 sts northstar engine swap
  80. Coolant Question
  81. Part Number: Camshaft seal @ water pump pulley?
  82. Supercharge Your NorthStar for Free.
  83. GIVING AWAY 97 & 98 DEVILLES u pay ship
  84. Engine swap????????
  85. Freebie!
  86. How to install an Eaton/GM M90 Supercharger on a 2003 Northstar
  87. Cam Shaft Bolts!!!
  88. 95 Seville SLS cold start problem with instant fuel pressure drop.
  89. 2003 dhs p0300
  90. Just one glitch left '93 North* %$#@!!
  91. replace or rebuild???? northstar
  92. 2000 DeVille oil filter
  93. Where can I get an engine overhaul kit for 97 4.6L Northstar?
  94. blown head gasket test kit
  95. Stubborn Water Pump Removal
  96. 4.6l N* knocks in cold weather, but quiets after operating temp is reached.
  97. Convert OBDII Northstar to OBDI ???
  98. Timing chain routing??
  99. Northstar 6 Speed Manual
  100. New ECM option for Northstar swappers
  101. Arrrghh Won't start
  102. Seville Filter
  103. Cadillac N* redesign is the fastest TQ. Converter?
  104. help identify the problem !
  105. loss of power
  106. Transmission Removal/replacement
  107. Camshaft install bolt pattern
  108. instaling water pump pulley
  109. Source/Recommendations for Rebuilt Northstar Engines?
  110. Stumble at hot idle, stalling
  111. detonation-preignition
  112. 95 Eldorado has SLOW starting Issue.
  113. Problem after 99 STS Headbolt stripped and repaired
  114. Guide Pin / Alignment Pin Removal The Easy Way
  115. My Northstar is running...
  116. 94 Concours intermittant no start
  117. Unique engine swap, need help deciding which N*
  118. Having a lil trouble holding 4th
  119. 2003 Northstar into a 2001 Deville
  120. TCC Solenoid - Please Help!!
  121. Where did the MPG go?
  122. Intake manifold
  123. 01 SLS Problems
  124. Anyone ever do a headgasket in the car?
  125. traction control input and output data
  126. Fly wheel/starter prof replaced, now oil leak?
  127. Keep getting same code.
  128. Cold starts not so good...
  129. 2001 DTS valvetrain noise after HG job?!
  130. Half Case Seal....
  131. P0153 - HO2S Slow Response Bank 2 Sensor 1
  132. Oil leak on STS, oil pan?
  133. 1994 eldorado coolant leak
  134. failed smog test again. the HC is still high @15MPH
  135. what resonator reduces drone, but not volume? (corsa not option)
  136. Water crossover parts to replace?
  137. intake and top cover 94 Seville STS 4.6
  138. 00 STS Air Pumps; how many of them?
  139. oil pressure
  140. Have a Northstar engine, what should I do with it?
  141. Code help...please!!!!!
  142. Help with o2 sensor--no cat--code p0146
  143. Anyone here an attorney - re: Head gasket failures?
  144. what happend to my kruella
  145. 6 of 8 spark plugs are oily!
  146. Code Assistance
  147. HG cause emissions test failure?
  148. new DTS. wide open throttle?
  149. Quick question: about to order from Rockauto
  150. Remote start
  151. 01 dhs over heating HELP!! PLEASE
  152. Questions about my Headgasket Job
  153. Curse stop leak and fast talking sales men!!
  154. Onboard computer and the octane rating of the fuel being used.
  155. 99 Deville Northstar-New fuel pump, but wont start
  156. need help on north star wire replacing...
  157. codes 073 and 1644
  158. Ranger Should Write a Caddy What to Expect Book
  159. 1st Annual Northstar Meet
  160. Dtc 730
  161. Northstar Stud Kits ready to ship!
  162. 98 SLS screeching noise from egen.
  163. ICM weak spark, have questions
  164. How to drop the cradle?
  165. Wheres my coolant going????
  166. front driver o2 sensor, where do connector wire lead to??
  167. Just got Headgaskets done. Still yellow liquid.
  168. Alternator Bearing Replacement?
  169. 01 STS Cracked Block Rebuilt Engine Recomendations
  170. Didn't pass emission. Got a high NO. Shouldn't use regular Gas(87)?
  171. A spike in coolant temp '93 North*
  172. 2007 XLR 4.6 in a Hot Rod!
  173. Testing MAF Sensor on '97 N* ??
  174. 02 SLS not liking the cold weather
  175. New Eldo Owner: Speed Limiter Question
  176. Damned Motor Mounts
  177. weak fuel pump question
  178. Low oil pressure/stop engine message
  179. '03 SLS - "Surges" at slowdown and stoplights
  180. torque convertor clutch solenoid
  181. Service Electrical System
  182. EGR Removal / Steel fuel rails
  183. advice needed - stubborn tight spark plug
  184. Motor swap,
  185. "97 DeVille B1S1 Oxygen Sensor
  186. I need help
  187. Track times
  188. Coolant leak when driving
  189. 96 SLS Electrical Charge System Gremlin
  190. P 420 code-what does it mean?
  191. Heater Core?
  192. Which side of the engine is "left" side?
  193. Vacuun line diagrahm
  194. 96 sls over curb now won't start
  195. electrical humming noise
  196. cam reluctors
  197. crankshaft sensors
  198. confused
  199. Transmission Pressure Control Solenoid 4T80E
  200. Worn Engine Mounts?
  201. strip thread in block
  202. Cadillac techs, can we visit you?
  203. Why remove the strut brace?
  204. oil filter adapter housing broke!
  205. Head gasket
  206. '97 Northstar MAF location and codes
  207. 94 4.6L Northstar stalls after warmup
  208. P024 - current 93 n* 4t80e trans.
  209. Fuel line?/Vacuum Line?
  210. 1993 4T80-E Transmission
  211. 65k mile service
  212. 4.6L Northstar Rattle
  213. '93 North* Glitch out of hand!
  214. 94 Concours Engine Clatter
  215. Any idea what part this is..urgent
  216. 94 N* overheating and leaking -bubba move
  217. What does a missfire feel like?
  218. 94 Concours leaking oil question
  219. Coil Pack Replacement
  220. 4.0L Northstar, more related to vin Y or vin 9?
  221. Converting a Y engine to a 9 in 97 STS
  222. '93 North* RUBBER PARTS!!!!!
  223. Ignition Ground Voltage
  224. Water in the valley
  225. Head Gasket Repair
  226. Would it be worth it?.
  227. TC defeat in 1st gear
  228. Yellow anti-freeze ?. (sorry)
  229. Where is the radiator drain plug?
  230. 4.9L? How can I tell?
  231. My 2 day old SLS is giving me some strange problems
  232. oil overfilled
  233. Reseting the ECU and PCM
  234. Just bought a used 1999 Deville 4.6L
  235. WOT vs HG preservation
  236. 03 Deville Filter Adapter Oil Leak
  237. Towing a FWD N* vehicle on 4 wheels
  238. Coolant in my Oil
  239. Northstar Repair without inserts
  240. 93 eldo northstar engine missing
  241. Help me understand...
  242. 97 sts cadillac turns over, will not start
  243. It overheated again - any idea why?
  244. What should I do about this 1997 Eldorado ETC?
  245. 96' Seville HG Problems.. :-(
  246. 97 SLS hard to start when warm
  247. How does this engine sound?
  248. HELP ASAP Need to Identify Engine in 97 sts
  249. 2000+ Northstars look different??
  250. cylinder guide pin removal