: Northstar Engines and System Technical Discussion



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