: Northstar Engines and System Technical Discussion



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  1. P0300 Misfire - My problem and solution + more problems...
  2. Best Engine Mounts - 1993-1994 or the newer?
  3. Blown head gasket repair
  4. occassional stalling problem
  5. 05 Deville
  6. Northstar battery life expectation
  7. 2001 DTS Valve Clearance question
  8. Fuel Pump Longevity/Milage Expectations
  9. Torquing N* head
  10. 96' Northstar cranks, will not start
  11. 01 Deville Cylinder #1 misfire
  12. bucking and kicking
  13. Northstar sitting for 12 years...need new springs?
  14. 2005 Bonneville GXP Northstar jumped time
  15. 2001 ETC Intermittent High Idle
  16. 2001 DTS won't accelerate past 2K rpms after spark plug change
  17. Advice on NorthStar coils - both ignition types
  18. Another Shout Out to Jake!!
  19. Code P 0171 showing - 1999 Deville
  20. 2001 DTS - interference engine 4.6l and timing chain replacement ?
  21. Studded heads update
  22. 1999 STS coolant questions
  23. 2000 STS NS smoking under hood after WOT
  24. Governor in NorthStar V8?
  25. O2 sensor-bank 1 S1
  26. No spark
  27. Please help! 94 SLS water pump cover...
  28. Wherer do these parts go ???
  29. Sudden Increase in Oil Consumption 2003 DHS
  30. Crankshaft pulley wobble
  31. 2001 Deville. Can't start after reinstalling engine
  32. Head gaskets and Time-Serts
  33. Oil pump?
  34. Help find part
  35. Maximum valve lift 04-05 Northstar 4.6
  36. 96' Northstar coolant leak
  37. cooling fan relays
  38. Help - 1993 Eldorado needs new engine
  39. Head Bolt Threads - Bonneville Northstar
  40. DOHC theory, any new information?
  41. Compression Ring Treatment
  42. 300 Northstar Headgasket repairs completed
  43. Where do these go?
  44. New motor to replace the northstar
  45. Northstar Replacement
  46. 2001 Deville hesitates while accelerating
  47. Retirement from the physical repairs to focus on the stud kits-
  48. The Dreaded Northstar Leaking Head Gasket- Fix, Sell or Junk?
  49. Why Leaking Headgaskets
  50. Is it dangerous - cracked flexplate on a Northstar
  51. 2008 STS engin dont swing
  52. fuel pump suddenly stops
  53. Stumble and stall
  54. Valve cover gaskets
  55. On the road again!
  56. 2001 Deville flat or domed pistons
  57. Changing the water pump "Belt?
  58. 1998 STS - Dies at speed and won't restart sometimes.
  59. Is it safe to buy a Northstar now? I can't stop driving Cadillacs!
  60. Northstar size question
  61. Need mechanic - 1994 STS Northstar near Winnipeg
  62. Northstar overheating
  63. Interchangeability of VIN: 9 and VIN: Y transmissions?
  64. Northstar Commander 950 base Map - sand rail install
  65. overheating need help
  66. Just a head gasket failure?
  67. Northstar engine questions from Finland
  68. P 0171 and P 0174 code - 2004 Deville
  69. new generator-->ECM broken
  70. Disconnecting EGR
  71. water crossover
  72. mid case reseal tsb
  73. 4.6 N* Cylinder walls
  74. Replacing the alternator on 97 Deville Concours
  75. Ready to stud another northstar
  76. Heli-Coil removal?
  77. Northstar Performance
  78. Wanted to clean EGR but what have those engineers done now
  79. 99 N* rebuilt and burning lots of oil
  80. Northstar into Chevy Beretta swap
  81. 2001 Deville overheating... block test OK
  82. low oil pressure
  83. Pros & Cons Cadillac 4.6 vs Ford 4.6 (eg lincoln mark viii and others)
  84. Codes P0171, P0174 and P1258 come up on 1997 Deville
  85. Coil pack
  86. Eastern Massachusetts Cadillac shops?
  87. voltage question
  88. Bouncing Idles - 1995 SLS Northstar
  89. 2000 STS question
  90. Northstar maintenance requirements - 2005 Deville
  91. Brand New 1993-1994 Northstar Engine - Oil Leak Modified or Not
  92. Hard Starting Warm - if not Pedal to the Metal
  93. DHS 2000 won't start after changing CranKshaft and CaMshaft Position Sensors
  94. 1996 Deville over heats when ac is on
  95. HG question - 1997 Eldorado, 127000 miles
  96. need help
  97. Now what do I do? Northstar block casting porosity
  98. Coolant all over top of engine?
  99. 97 SLS Overheating - I've checked everything and need ideas
  100. 03 Deville hard idle and bogging out lower speeds
  101. 2003 Deville CKP codes
  102. P 0300 random misfire - 2000 STS
  103. Northstar Performance rebuilt engine
  104. exhaust buzzing noise 2006 dts
  105. Northstar head repair in Chicagoland area
  106. Guide pins
  107. Installing Rear Main Seal with Crank Removed
  108. Heater core follows head gasket ?
  109. 99 SLS overheating, need help
  110. Fixing Head Gasket
  111. Kent-Moore VS Time-sert
  112. Bought 1998 Deville 4 days ago - overheating
  113. Northstar: Did they ever get better?
  114. I need step by step procedure to replace a 2005 STS motor LH2 quickly
  115. HG test and green result
  116. Eliminating/raising the speed limiter - how to?
  117. Water pump removal socket-northstar
  118. Lurching idle
  119. 5.3 motor
  120. 95 Eldorado alternator plug wiring
  121. OVERHEATING (Long)
  122. 2000 Deville Motor Mount Heat Shield
  123. 95-99 Engine Beauty Cover - Intake bolts Not lining up
  124. 1998 STS Trouble Codes & Emission Test
  125. A positive HG repair experience
  126. 2000 DHS transmission light on
  127. Anyone that has pulled an N*? PLEASE! I need some advice.
  128. Blown Head Gasket Help
  129. Sell or Keep N*
  130. Best way to clean the engine bay?
  131. Shops that specilize in head gasket repair.
  132. oil loadup at idle
  133. EGR Cleaning - '97 ETC
  134. engine over heating..
  135. Cleared PCM codes - now emissions test not ready
  136. Madtuner.com
  137. N* 4.6 Bad Compression, Help Please
  138. Best Replacement Mount For 2000 Deville
  139. Do not stud a Northstar
  140. Drilling and Tapping The Northstar V8......my personal experience so far.
  141. Northstar TB upgrade
  142. 2002 Deville Transaxle
  143. clogged heater core
  144. 2000 Deville Base - Front Ground Wire
  145. fuel injectors,1993 4.6 northstar VIn Y
  146. Chips
  147. my STS...its a miracle!
  148. How to clean out fuel system in a 96 Eldorado sitting for 6 years.
  149. low oil pressure-'97 SLS
  150. Northstar exhaust
  151. Update on parts I have/had
  152. Northstar Smoke On Startup
  153. O5 DeVille Is That My Lifters I Hear????
  154. 2006 4.6 northstar performance upgrades
  155. 1995 SLS questions on codes
  156. Recommend Pro Mar in NJ for a Northstar Rebuild. :)
  157. Replacing a Northstar in my 2003 Seville...what should I check for?
  158. HELP! 1999 SLS Coolant leak
  159. 2008 DTS misfire issue
  160. P 0300 code 2005 DTS - can't find the miss
  161. .030" over head gasket?
  162. 4.6L 32 valve water in oil
  163. P 0306 code
  164. 2000 DHS - cooling system problems
  165. 1990 DeVille idles rough
  166. 1997 STS - hard start, backfire when cranking
  167. Tappets or Rocker Followers - Two Different Head Designs???
  168. 2004 0r 2006 ?
  169. Change cat?
  170. Changing the Serpentine belt on a VIN Y Northstar V8
  171. 2006 Northstar 4.6 overheating
  172. 2002 STS Bottom end repaired early on.........questions
  173. 2002 DTS Northstar questions
  174. Northstar Water Pump Mounting Changes - Year?
  175. 94 SLS feels like its going to stall when at stoplight
  176. 2000 DTS - Overheating Issues
  177. 2001 Northstar piston to rod orientation?
  178. Should I clean my EGR valve also replace air pump
  179. Best transmission for a Northstar to LaSalle Street Rod swap
  180. Would these chain tensioners cause excessive engine noise?
  181. Rebuilt 4.6 from Davis Auto Repair or Cadillac Doctor
  182. Real bad oil leak!
  183. P0719how much coukd this code cost me
  184. Drink coasters from engine cover emblems.
  185. Strange compression test results, oil inside intake manifold & smoke !!
  186. Bore heads for larger headbolts or stud/insert ?
  187. Diffrence from 2000 and 2006 northstar engine?
  188. Exxon valdez
  189. 97 ETC Head Gasket Project
  190. 1998 Deville Northstar - ready to get my hands dirty
  191. Northstar V-8 Engine - Gasoline Issue
  192. Engine shaking
  193. Piston pin
  194. Northstar cam timing and chain problem
  195. Small Oil Leak and Smell in 2000 Cadillac Deville
  196. Are 2001 y code transmissions AAN and VAN interchangeable?
  197. Crank question
  198. Where Does This Bracket Go??
  199. LD8 non-interference motor?
  200. Losing Compression
  201. where is thermostat
  202. Issues with code P 0411 - 2006 DTS
  203. 96 Deville won't idle down, hard start and backfires when cold
  204. 99 DeVille D'elegance
  205. Northstar build
  206. Intermediate Timing Chain Gear fit
  207. Fuel pressure jumping up and down on my 1998 Eldorado
  208. Mystery klanking sound.. over 200K N*
  209. GUZZLING GAS!!! 2000 Deville...
  210. 96 Northstar Build
  211. Misfire - 2001 Deville
  212. To fix the Blown Head Gasket, how hard is it if DIY?
  213. Help-Broke Oil Pressure Switch wires while replaceing CKP's 03 Deville
  214. Piston detonation evidence - 1998 Northstar
  215. Coolant crossover
  216. Northstar V8 and 4T80E questions
  217. 2002 SLS Code P 0401
  218. DTS oil level and change oil soon messages
  219. Rough Idle After Retiming.
  220. Yet another oil question - mix SAE 30 with 10W-30 ?
  221. No acceleration... 2000 Deville
  222. Northstar Manual Transmission Possibility?
  223. Idling Trouble for 2004 Deville
  224. Timing chain issue, not lining up? stretched chain possibly?
  225. Rough idle/shuddering and misfires...2004 SRX Northstar
  226. Northstar oil flow diagram - oil in a head bolt hole
  227. Coolant Temperature Problem
  228. SES Light - codes P0171 & P0174 - 2004 Seville
  229. Oil filter
  230. Used Northstar powertrains-FS
  231. production codes
  232. radiator cooling in cold temps
  233. Can anyone identify this?
  234. 2005 Northstar Knock on Start Up
  235. Swap engine from 2006-2007 into 2000 DTS ?
  236. 1994 Concours - head gasket replacement ?
  237. p0154/0151
  238. Engine cover removal
  239. Northstar Overheating Problem- Is it possible to live with or even avoid...?
  240. oops ruined a couple studs by accident
  241. Looking for a cartridge style rear main seal installer
  242. need a new motor!
  243. cataclean info
  244. Northstar Performance SLOW!!!!!!!!!!!!!!
  245. CODES of past ,present,future?
  246. CKP & OP Sensors AND Oil Filter Adapter Sealing, Servicing - Candidate 4 Sticky
  247. 1998 Eldorado failed HG
  248. need a little advice on what im looking at
  249. 97 Concours won't start now
  250. 1997 ETC engine performance upgrades