: Northstar Engines and System Technical Discussion



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  1. 2001 DTS won't accelerate past 2K rpms after spark plug change
  2. Advice on NorthStar coils - both ignition types
  3. Another Shout Out to Jake!!
  4. Code P 0171 showing - 1999 Deville
  5. 2001 DTS - interference engine 4.6l and timing chain replacement ?
  6. Studded heads update
  7. 1999 STS coolant questions
  8. 2000 STS NS smoking under hood after WOT
  9. Governor in NorthStar V8?
  10. O2 sensor-bank 1 S1
  11. No spark
  12. Please help! 94 SLS water pump cover...
  13. Wherer do these parts go ???
  14. Sudden Increase in Oil Consumption 2003 DHS
  15. Crankshaft pulley wobble
  16. 2001 Deville. Can't start after reinstalling engine
  17. Head gaskets and Time-Serts
  18. Oil pump?
  19. Help find part
  20. Maximum valve lift 04-05 Northstar 4.6
  21. 96' Northstar coolant leak
  22. cooling fan relays
  23. Help - 1993 Eldorado needs new engine
  24. Head Bolt Threads - Bonneville Northstar
  25. DOHC theory, any new information?
  26. Compression Ring Treatment
  27. 300 Northstar Headgasket repairs completed
  28. Where do these go?
  29. New motor to replace the northstar
  30. Northstar Replacement
  31. 2001 Deville hesitates while accelerating
  32. Retirement from the physical repairs to focus on the stud kits-
  33. The Dreaded Northstar Leaking Head Gasket- Fix, Sell or Junk?
  34. Why Leaking Headgaskets
  35. Is it dangerous - cracked flexplate on a Northstar
  36. 2008 STS engin dont swing
  37. fuel pump suddenly stops
  38. Stumble and stall
  39. Valve cover gaskets
  40. On the road again!
  41. 2001 Deville flat or domed pistons
  42. Changing the water pump "Belt?
  43. 1998 STS - Dies at speed and won't restart sometimes.
  44. Is it safe to buy a Northstar now? I can't stop driving Cadillacs!
  45. Northstar size question
  46. Need mechanic - 1994 STS Northstar near Winnipeg
  47. Northstar overheating
  48. Interchangeability of VIN: 9 and VIN: Y transmissions?
  49. Northstar Commander 950 base Map - sand rail install
  50. overheating need help
  51. Just a head gasket failure?
  52. Northstar engine questions from Finland
  53. P 0171 and P 0174 code - 2004 Deville
  54. new generator-->ECM broken
  55. Disconnecting EGR
  56. water crossover
  57. mid case reseal tsb
  58. 4.6 N* Cylinder walls
  59. Replacing the alternator on 97 Deville Concours
  60. Ready to stud another northstar
  61. Heli-Coil removal?
  62. Northstar Performance
  63. Wanted to clean EGR but what have those engineers done now
  64. 99 N* rebuilt and burning lots of oil
  65. Northstar into Chevy Beretta swap
  66. 2001 Deville overheating... block test OK
  67. low oil pressure
  68. Pros & Cons Cadillac 4.6 vs Ford 4.6 (eg lincoln mark viii and others)
  69. Codes P0171, P0174 and P1258 come up on 1997 Deville
  70. Coil pack
  71. Eastern Massachusetts Cadillac shops?
  72. voltage question
  73. Bouncing Idles - 1995 SLS Northstar
  74. 2000 STS question
  75. Northstar maintenance requirements - 2005 Deville
  76. Brand New 1993-1994 Northstar Engine - Oil Leak Modified or Not
  77. Hard Starting Warm - if not Pedal to the Metal
  78. DHS 2000 won't start after changing CranKshaft and CaMshaft Position Sensors
  79. 1996 Deville over heats when ac is on
  80. HG question - 1997 Eldorado, 127000 miles
  81. need help
  82. Now what do I do? Northstar block casting porosity
  83. Coolant all over top of engine?
  84. 97 SLS Overheating - I've checked everything and need ideas
  85. 03 Deville hard idle and bogging out lower speeds
  86. 2003 Deville CKP codes
  87. P 0300 random misfire - 2000 STS
  88. Northstar Performance rebuilt engine
  89. exhaust buzzing noise 2006 dts
  90. Northstar head repair in Chicagoland area
  91. Guide pins
  92. Installing Rear Main Seal with Crank Removed
  93. Heater core follows head gasket ?
  94. 99 SLS overheating, need help
  95. Fixing Head Gasket
  96. Kent-Moore VS Time-sert
  97. Bought 1998 Deville 4 days ago - overheating
  98. Northstar: Did they ever get better?
  99. I need step by step procedure to replace a 2005 STS motor LH2 quickly
  100. HG test and green result
  101. Eliminating/raising the speed limiter - how to?
  102. Water pump removal socket-northstar
  103. Lurching idle
  104. 5.3 motor
  105. 95 Eldorado alternator plug wiring
  106. OVERHEATING (Long)
  107. 2000 Deville Motor Mount Heat Shield
  108. 95-99 Engine Beauty Cover - Intake bolts Not lining up
  109. 1998 STS Trouble Codes & Emission Test
  110. A positive HG repair experience
  111. 2000 DHS transmission light on
  112. Anyone that has pulled an N*? PLEASE! I need some advice.
  113. Blown Head Gasket Help
  114. Sell or Keep N*
  115. Best way to clean the engine bay?
  116. Shops that specilize in head gasket repair.
  117. oil loadup at idle
  118. EGR Cleaning - '97 ETC
  119. engine over heating..
  120. Cleared PCM codes - now emissions test not ready
  121. Madtuner.com
  122. N* 4.6 Bad Compression, Help Please
  123. Best Replacement Mount For 2000 Deville
  124. Do not stud a Northstar
  125. Drilling and Tapping The Northstar V8......my personal experience so far.
  126. Northstar TB upgrade
  127. 2002 Deville Transaxle
  128. clogged heater core
  129. 2000 Deville Base - Front Ground Wire
  130. fuel injectors,1993 4.6 northstar VIn Y
  131. Chips
  132. my STS...its a miracle!
  133. How to clean out fuel system in a 96 Eldorado sitting for 6 years.
  134. low oil pressure-'97 SLS
  135. Northstar exhaust
  136. Update on parts I have/had
  137. Northstar Smoke On Startup
  138. O5 DeVille Is That My Lifters I Hear????
  139. 2006 4.6 northstar performance upgrades
  140. 1995 SLS questions on codes
  141. Recommend Pro Mar in NJ for a Northstar Rebuild. :)
  142. Replacing a Northstar in my 2003 Seville...what should I check for?
  143. HELP! 1999 SLS Coolant leak
  144. 2008 DTS misfire issue
  145. P 0300 code 2005 DTS - can't find the miss
  146. .030" over head gasket?
  147. 4.6L 32 valve water in oil
  148. P 0306 code
  149. 2000 DHS - cooling system problems
  150. 1990 DeVille idles rough
  151. 1997 STS - hard start, backfire when cranking
  152. Tappets or Rocker Followers - Two Different Head Designs???
  153. 2004 0r 2006 ?
  154. Change cat?
  155. Changing the Serpentine belt on a VIN Y Northstar V8
  156. 2006 Northstar 4.6 overheating
  157. 2002 STS Bottom end repaired early on.........questions
  158. 2002 DTS Northstar questions
  159. Northstar Water Pump Mounting Changes - Year?
  160. 94 SLS feels like its going to stall when at stoplight
  161. 2000 DTS - Overheating Issues
  162. 2001 Northstar piston to rod orientation?
  163. Should I clean my EGR valve also replace air pump
  164. Best transmission for a Northstar to LaSalle Street Rod swap
  165. Would these chain tensioners cause excessive engine noise?
  166. Rebuilt 4.6 from Davis Auto Repair or Cadillac Doctor
  167. Real bad oil leak!
  168. P0719how much coukd this code cost me
  169. Drink coasters from engine cover emblems.
  170. Strange compression test results, oil inside intake manifold & smoke !!
  171. Bore heads for larger headbolts or stud/insert ?
  172. Diffrence from 2000 and 2006 northstar engine?
  173. Exxon valdez
  174. 97 ETC Head Gasket Project
  175. 1998 Deville Northstar - ready to get my hands dirty
  176. Northstar V-8 Engine - Gasoline Issue
  177. Engine shaking
  178. Piston pin
  179. Northstar cam timing and chain problem
  180. Small Oil Leak and Smell in 2000 Cadillac Deville
  181. Are 2001 y code transmissions AAN and VAN interchangeable?
  182. Crank question
  183. Where Does This Bracket Go??
  184. LD8 non-interference motor?
  185. Losing Compression
  186. where is thermostat
  187. Issues with code P 0411 - 2006 DTS
  188. 96 Deville won't idle down, hard start and backfires when cold
  189. 99 DeVille D'elegance
  190. Northstar build
  191. Intermediate Timing Chain Gear fit
  192. Fuel pressure jumping up and down on my 1998 Eldorado
  193. Mystery klanking sound.. over 200K N*
  194. GUZZLING GAS!!! 2000 Deville...
  195. 96 Northstar Build
  196. Misfire - 2001 Deville
  197. To fix the Blown Head Gasket, how hard is it if DIY?
  198. Help-Broke Oil Pressure Switch wires while replaceing CKP's 03 Deville
  199. Piston detonation evidence - 1998 Northstar
  200. Coolant crossover
  201. Northstar V8 and 4T80E questions
  202. 2002 SLS Code P 0401
  203. DTS oil level and change oil soon messages
  204. Rough Idle After Retiming.
  205. Yet another oil question - mix SAE 30 with 10W-30 ?
  206. No acceleration... 2000 Deville
  207. Northstar Manual Transmission Possibility?
  208. Idling Trouble for 2004 Deville
  209. Timing chain issue, not lining up? stretched chain possibly?
  210. Rough idle/shuddering and misfires...2004 SRX Northstar
  211. Northstar oil flow diagram - oil in a head bolt hole
  212. Coolant Temperature Problem
  213. SES Light - codes P0171 & P0174 - 2004 Seville
  214. Oil filter
  215. Used Northstar powertrains-FS
  216. production codes
  217. radiator cooling in cold temps
  218. Can anyone identify this?
  219. 2005 Northstar Knock on Start Up
  220. Swap engine from 2006-2007 into 2000 DTS ?
  221. 1994 Concours - head gasket replacement ?
  222. p0154/0151
  223. Engine cover removal
  224. Northstar Overheating Problem- Is it possible to live with or even avoid...?
  225. oops ruined a couple studs by accident
  226. Looking for a cartridge style rear main seal installer
  227. need a new motor!
  228. cataclean info
  229. Northstar Performance SLOW!!!!!!!!!!!!!!
  230. CODES of past ,present,future?
  231. CKP & OP Sensors AND Oil Filter Adapter Sealing, Servicing - Candidate 4 Sticky
  232. 1998 Eldorado failed HG
  233. need a little advice on what im looking at
  234. 97 Concours won't start now
  235. 1997 ETC engine performance upgrades
  236. 2006-2009 DTS Common Problems
  237. Engine randomly stalls when it rains and ran into another problem
  238. Pre-'05 4T80E Torque Converter Upgrade from viscous silicone to '05-later EC3?
  239. Looking for Northstar experts in or around Atlanta, GA
  240. Northstar water pump 2006-2011
  241. STP High mileage oil additive.
  242. Re: 2000+ Northstar Plenum Replacement steps
  243. NO oil war just info on dexos,please
  244. The Stumbling, The Codes and The Solution
  245. Engine knock after rebuild 2005 northstar
  246. 01 STS - Head Gasket - Perm or Temp/Quick Fix Solution
  247. Main Cap Bolt broken in block, UGHH.
  248. location of starter
  249. 1995 STS starter questions and seeking advice
  250. dog bones life span