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View Full Version : Northstar Engines and System Technical Discussion



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