: Northstar Engines and System Technical Discussion



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