: Northstar Engines and System Technical Discussion



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  1. Head Bolt Threads - Bonneville Northstar
  2. DOHC theory, any new information?
  3. Compression Ring Treatment
  4. 300 Northstar Headgasket repairs completed
  5. Where do these go?
  6. New motor to replace the northstar
  7. Northstar Replacement
  8. 2001 Deville hesitates while accelerating
  9. Retirement from the physical repairs to focus on the stud kits-
  10. The Dreaded Northstar Leaking Head Gasket- Fix, Sell or Junk?
  11. Why Leaking Headgaskets
  12. Is it dangerous - cracked flexplate on a Northstar
  13. 2008 STS engin dont swing
  14. fuel pump suddenly stops
  15. Stumble and stall
  16. Valve cover gaskets
  17. On the road again!
  18. 2001 Deville flat or domed pistons
  19. Changing the water pump "Belt?
  20. 1998 STS - Dies at speed and won't restart sometimes.
  21. Is it safe to buy a Northstar now? I can't stop driving Cadillacs!
  22. Northstar size question
  23. Need mechanic - 1994 STS Northstar near Winnipeg
  24. Northstar overheating
  25. Interchangeability of VIN: 9 and VIN: Y transmissions?
  26. Northstar Commander 950 base Map - sand rail install
  27. overheating need help
  28. Just a head gasket failure?
  29. Northstar engine questions from Finland
  30. P 0171 and P 0174 code - 2004 Deville
  31. new generator-->ECM broken
  32. Disconnecting EGR
  33. water crossover
  34. mid case reseal tsb
  35. 4.6 N* Cylinder walls
  36. Replacing the alternator on 97 Deville Concours
  37. Ready to stud another northstar
  38. Heli-Coil removal?
  39. Northstar Performance
  40. Wanted to clean EGR but what have those engineers done now
  41. 99 N* rebuilt and burning lots of oil
  42. Northstar into Chevy Beretta swap
  43. 2001 Deville overheating... block test OK
  44. low oil pressure
  45. Pros & Cons Cadillac 4.6 vs Ford 4.6 (eg lincoln mark viii and others)
  46. Codes P0171, P0174 and P1258 come up on 1997 Deville
  47. Coil pack
  48. Eastern Massachusetts Cadillac shops?
  49. voltage question
  50. Bouncing Idles - 1995 SLS Northstar
  51. 2000 STS question
  52. Northstar maintenance requirements - 2005 Deville
  53. Brand New 1993-1994 Northstar Engine - Oil Leak Modified or Not
  54. Hard Starting Warm - if not Pedal to the Metal
  55. DHS 2000 won't start after changing CranKshaft and CaMshaft Position Sensors
  56. 1996 Deville over heats when ac is on
  57. HG question - 1997 Eldorado, 127000 miles
  58. need help
  59. Now what do I do? Northstar block casting porosity
  60. Coolant all over top of engine?
  61. 97 SLS Overheating - I've checked everything and need ideas
  62. 03 Deville hard idle and bogging out lower speeds
  63. 2003 Deville CKP codes
  64. P 0300 random misfire - 2000 STS
  65. Northstar Performance rebuilt engine
  66. exhaust buzzing noise 2006 dts
  67. Northstar head repair in Chicagoland area
  68. Guide pins
  69. Installing Rear Main Seal with Crank Removed
  70. Heater core follows head gasket ?
  71. 99 SLS overheating, need help
  72. Fixing Head Gasket
  73. Kent-Moore VS Time-sert
  74. Bought 1998 Deville 4 days ago - overheating
  75. Northstar: Did they ever get better?
  76. I need step by step procedure to replace a 2005 STS motor LH2 quickly
  77. HG test and green result
  78. Eliminating/raising the speed limiter - how to?
  79. Water pump removal socket-northstar
  80. Lurching idle
  81. 5.3 motor
  82. 95 Eldorado alternator plug wiring
  83. OVERHEATING (Long)
  84. 2000 Deville Motor Mount Heat Shield
  85. 95-99 Engine Beauty Cover - Intake bolts Not lining up
  86. 1998 STS Trouble Codes & Emission Test
  87. A positive HG repair experience
  88. 2000 DHS transmission light on
  89. Anyone that has pulled an N*? PLEASE! I need some advice.
  90. Blown Head Gasket Help
  91. Sell or Keep N*
  92. Best way to clean the engine bay?
  93. Shops that specilize in head gasket repair.
  94. oil loadup at idle
  95. EGR Cleaning - '97 ETC
  96. engine over heating..
  97. Cleared PCM codes - now emissions test not ready
  98. Madtuner.com
  99. N* 4.6 Bad Compression, Help Please
  100. Best Replacement Mount For 2000 Deville
  101. Do not stud a Northstar
  102. Drilling and Tapping The Northstar V8......my personal experience so far.
  103. Northstar TB upgrade
  104. 2002 Deville Transaxle
  105. clogged heater core
  106. 2000 Deville Base - Front Ground Wire
  107. fuel injectors,1993 4.6 northstar VIn Y
  108. Chips
  109. my STS...its a miracle!
  110. How to clean out fuel system in a 96 Eldorado sitting for 6 years.
  111. low oil pressure-'97 SLS
  112. Northstar exhaust
  113. Update on parts I have/had
  114. Northstar Smoke On Startup
  115. O5 DeVille Is That My Lifters I Hear????
  116. 2006 4.6 northstar performance upgrades
  117. 1995 SLS questions on codes
  118. Recommend Pro Mar in NJ for a Northstar Rebuild. :)
  119. Replacing a Northstar in my 2003 Seville...what should I check for?
  120. HELP! 1999 SLS Coolant leak
  121. 2008 DTS misfire issue
  122. P 0300 code 2005 DTS - can't find the miss
  123. .030" over head gasket?
  124. 4.6L 32 valve water in oil
  125. P 0306 code
  126. 2000 DHS - cooling system problems
  127. 1990 DeVille idles rough
  128. 1997 STS - hard start, backfire when cranking
  129. Tappets or Rocker Followers - Two Different Head Designs???
  130. 2004 0r 2006 ?
  131. Change cat?
  132. Changing the Serpentine belt on a VIN Y Northstar V8
  133. 2006 Northstar 4.6 overheating
  134. 2002 STS Bottom end repaired early on.........questions
  135. 2002 DTS Northstar questions
  136. Northstar Water Pump Mounting Changes - Year?
  137. 94 SLS feels like its going to stall when at stoplight
  138. 2000 DTS - Overheating Issues
  139. 2001 Northstar piston to rod orientation?
  140. Should I clean my EGR valve also replace air pump
  141. Best transmission for a Northstar to LaSalle Street Rod swap
  142. Would these chain tensioners cause excessive engine noise?
  143. Rebuilt 4.6 from Davis Auto Repair or Cadillac Doctor
  144. Real bad oil leak!
  145. P0719how much coukd this code cost me
  146. Drink coasters from engine cover emblems.
  147. Strange compression test results, oil inside intake manifold & smoke !!
  148. Bore heads for larger headbolts or stud/insert ?
  149. Diffrence from 2000 and 2006 northstar engine?
  150. Exxon valdez
  151. 97 ETC Head Gasket Project
  152. 1998 Deville Northstar - ready to get my hands dirty
  153. Northstar V-8 Engine - Gasoline Issue
  154. Engine shaking
  155. Piston pin
  156. Northstar cam timing and chain problem
  157. Small Oil Leak and Smell in 2000 Cadillac Deville
  158. Are 2001 y code transmissions AAN and VAN interchangeable?
  159. Crank question
  160. Where Does This Bracket Go??
  161. LD8 non-interference motor?
  162. Losing Compression
  163. where is thermostat
  164. Issues with code P 0411 - 2006 DTS
  165. 96 Deville won't idle down, hard start and backfires when cold
  166. 99 DeVille D'elegance
  167. Northstar build
  168. Intermediate Timing Chain Gear fit
  169. Fuel pressure jumping up and down on my 1998 Eldorado
  170. Mystery klanking sound.. over 200K N*
  171. GUZZLING GAS!!! 2000 Deville...
  172. 96 Northstar Build
  173. Misfire - 2001 Deville
  174. To fix the Blown Head Gasket, how hard is it if DIY?
  175. Help-Broke Oil Pressure Switch wires while replaceing CKP's 03 Deville
  176. Piston detonation evidence - 1998 Northstar
  177. Coolant crossover
  178. Northstar V8 and 4T80E questions
  179. 2002 SLS Code P 0401
  180. DTS oil level and change oil soon messages
  181. Rough Idle After Retiming.
  182. Yet another oil question - mix SAE 30 with 10W-30 ?
  183. No acceleration... 2000 Deville
  184. Northstar Manual Transmission Possibility?
  185. Idling Trouble for 2004 Deville
  186. Timing chain issue, not lining up? stretched chain possibly?
  187. Rough idle/shuddering and misfires...2004 SRX Northstar
  188. Northstar oil flow diagram - oil in a head bolt hole
  189. Coolant Temperature Problem
  190. SES Light - codes P0171 & P0174 - 2004 Seville
  191. Oil filter
  192. Used Northstar powertrains-FS
  193. production codes
  194. radiator cooling in cold temps
  195. Can anyone identify this?
  196. 2005 Northstar Knock on Start Up
  197. Swap engine from 2006-2007 into 2000 DTS ?
  198. 1994 Concours - head gasket replacement ?
  199. p0154/0151
  200. Engine cover removal
  201. Northstar Overheating Problem- Is it possible to live with or even avoid...?
  202. oops ruined a couple studs by accident
  203. Looking for a cartridge style rear main seal installer
  204. need a new motor!
  205. cataclean info
  206. Northstar Performance SLOW!!!!!!!!!!!!!!
  207. CODES of past ,present,future?
  208. CKP & OP Sensors AND Oil Filter Adapter Sealing, Servicing - Candidate 4 Sticky
  209. 1998 Eldorado failed HG
  210. need a little advice on what im looking at
  211. 97 Concours won't start now
  212. 1997 ETC engine performance upgrades
  213. 2006-2009 DTS Common Problems
  214. Engine randomly stalls when it rains and ran into another problem
  215. Pre-'05 4T80E Torque Converter Upgrade from viscous silicone to '05-later EC3?
  216. Looking for Northstar experts in or around Atlanta, GA
  217. Northstar water pump 2006-2011
  218. STP High mileage oil additive.
  219. Re: 2000+ Northstar Plenum Replacement steps
  220. NO oil war just info on dexos,please
  221. The Stumbling, The Codes and The Solution
  222. Engine knock after rebuild 2005 northstar
  223. 01 STS - Head Gasket - Perm or Temp/Quick Fix Solution
  224. Main Cap Bolt broken in block, UGHH.
  225. location of starter
  226. 1995 STS starter questions and seeking advice
  227. dog bones life span
  228. Engine parts cleaning during overhaul
  229. 2000 STS Northstar coolant problems
  230. Transaxle leaking
  231. Northstar head gasket problem
  232. 2000 Deville Code P0741 & P1860
  233. Motor Mounts
  234. Just bought a 99 Deville - question about the oil
  235. Buyer beware
  236. HOW TO: Change surge tank (and coolant) on a 96 VIN Y DeVille
  237. tapping sound
  238. hard shifting
  239. hard start, hi reving cadillac after storage
  240. oil leak. water pump camshaft
  241. 1998 caddy STS fixed wp pulleys & belt. More issues!!!
  242. Northstar - any thoughts or advice ????
  243. More big props to joe
  244. Plenum Issue??? AIR system issue ???
  245. 1999 Deville PCM codes - can you tune it?
  246. Overheating Northstars and bleeder valves
  247. How do you find tdc on cylinder #1 using timing marks?
  248. Cadillac Deville 2000 plugs and boots
  249. 2000 STS code 9 swapping to 2001 Y code engine
  250. 1996 STS - P1406 DTC with bucking and hesitation