: Northstar Engines and System Technical Discussion



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  1. Attention all Northstar engine owners - Carroll Cadillac studs
  2. Questions about pre 00 Northstar oil change and use of additives
  3. Pressure in expansion tank
  4. ran out of gas now my SES light turned on any help
  5. New Northstar Crate Engines
  6. very bad coolant leak
  7. High Idle question
  8. Flowmasters on a 2003 SLS
  9. Simple spark plug question - Northstar "tune up"
  10. Results posted - Christmas Draw - FREE STUD KIT!
  11. 2004 Deville rough idle
  12. 1996 Deville fuel injectors
  13. Cylinder head bolt replacement
  14. Northstar R&D-Bench Test Apparatus
  15. Hello Cadillac/Northstar owners
  16. 1996 Deville...... 4.6 Northstar trouble......lotsa trouble.
  17. P0300 Misfire - My problem and solution + more problems...
  18. Best Engine Mounts - 1993-1994 or the newer?
  19. Blown head gasket repair
  20. occassional stalling problem
  21. 05 Deville
  22. Northstar battery life expectation
  23. 2001 DTS Valve Clearance question
  24. Fuel Pump Longevity/Milage Expectations
  25. Torquing N* head
  26. 96' Northstar cranks, will not start
  27. 01 Deville Cylinder #1 misfire
  28. bucking and kicking
  29. Northstar sitting for 12 years...need new springs?
  30. 2005 Bonneville GXP Northstar jumped time
  31. 2001 ETC Intermittent High Idle
  32. 2001 DTS won't accelerate past 2K rpms after spark plug change
  33. Advice on NorthStar coils - both ignition types
  34. Another Shout Out to Jake!!
  35. Code P 0171 showing - 1999 Deville
  36. 2001 DTS - interference engine 4.6l and timing chain replacement ?
  37. Studded heads update
  38. 1999 STS coolant questions
  39. 2000 STS NS smoking under hood after WOT
  40. Governor in NorthStar V8?
  41. O2 sensor-bank 1 S1
  42. No spark
  43. Please help! 94 SLS water pump cover...
  44. Wherer do these parts go ???
  45. Sudden Increase in Oil Consumption 2003 DHS
  46. Crankshaft pulley wobble
  47. 2001 Deville. Can't start after reinstalling engine
  48. Head gaskets and Time-Serts
  49. Oil pump?
  50. Help find part
  51. Maximum valve lift 04-05 Northstar 4.6
  52. 96' Northstar coolant leak
  53. cooling fan relays
  54. Help - 1993 Eldorado needs new engine
  55. Head Bolt Threads - Bonneville Northstar
  56. DOHC theory, any new information?
  57. Compression Ring Treatment
  58. 300 Northstar Headgasket repairs completed
  59. Where do these go?
  60. New motor to replace the northstar
  61. Northstar Replacement
  62. 2001 Deville hesitates while accelerating
  63. Retirement from the physical repairs to focus on the stud kits-
  64. The Dreaded Northstar Leaking Head Gasket- Fix, Sell or Junk?
  65. Why Leaking Headgaskets
  66. Is it dangerous - cracked flexplate on a Northstar
  67. 2008 STS engin dont swing
  68. fuel pump suddenly stops
  69. Stumble and stall
  70. Valve cover gaskets
  71. On the road again!
  72. 2001 Deville flat or domed pistons
  73. Changing the water pump "Belt?
  74. 1998 STS - Dies at speed and won't restart sometimes.
  75. Is it safe to buy a Northstar now? I can't stop driving Cadillacs!
  76. Northstar size question
  77. Need mechanic - 1994 STS Northstar near Winnipeg
  78. Northstar overheating
  79. Interchangeability of VIN: 9 and VIN: Y transmissions?
  80. Northstar Commander 950 base Map - sand rail install
  81. overheating need help
  82. Just a head gasket failure?
  83. Northstar engine questions from Finland
  84. P 0171 and P 0174 code - 2004 Deville
  85. new generator-->ECM broken
  86. Disconnecting EGR
  87. water crossover
  88. mid case reseal tsb
  89. 4.6 N* Cylinder walls
  90. Replacing the alternator on 97 Deville Concours
  91. Ready to stud another northstar
  92. Heli-Coil removal?
  93. Northstar Performance
  94. Wanted to clean EGR but what have those engineers done now
  95. 99 N* rebuilt and burning lots of oil
  96. Northstar into Chevy Beretta swap
  97. 2001 Deville overheating... block test OK
  98. low oil pressure
  99. Pros & Cons Cadillac 4.6 vs Ford 4.6 (eg lincoln mark viii and others)
  100. Codes P0171, P0174 and P1258 come up on 1997 Deville
  101. Coil pack
  102. Eastern Massachusetts Cadillac shops?
  103. voltage question
  104. Bouncing Idles - 1995 SLS Northstar
  105. 2000 STS question
  106. Northstar maintenance requirements - 2005 Deville
  107. Brand New 1993-1994 Northstar Engine - Oil Leak Modified or Not
  108. Hard Starting Warm - if not Pedal to the Metal
  109. DHS 2000 won't start after changing CranKshaft and CaMshaft Position Sensors
  110. 1996 Deville over heats when ac is on
  111. HG question - 1997 Eldorado, 127000 miles
  112. need help
  113. Now what do I do? Northstar block casting porosity
  114. Coolant all over top of engine?
  115. 97 SLS Overheating - I've checked everything and need ideas
  116. 03 Deville hard idle and bogging out lower speeds
  117. 2003 Deville CKP codes
  118. P 0300 random misfire - 2000 STS
  119. Northstar Performance rebuilt engine
  120. exhaust buzzing noise 2006 dts
  121. Northstar head repair in Chicagoland area
  122. Guide pins
  123. Installing Rear Main Seal with Crank Removed
  124. Heater core follows head gasket ?
  125. 99 SLS overheating, need help
  126. Fixing Head Gasket
  127. Kent-Moore VS Time-sert
  128. Bought 1998 Deville 4 days ago - overheating
  129. Northstar: Did they ever get better?
  130. I need step by step procedure to replace a 2005 STS motor LH2 quickly
  131. HG test and green result
  132. Eliminating/raising the speed limiter - how to?
  133. Water pump removal socket-northstar
  134. Lurching idle
  135. 5.3 motor
  136. 95 Eldorado alternator plug wiring
  137. OVERHEATING (Long)
  138. 2000 Deville Motor Mount Heat Shield
  139. 95-99 Engine Beauty Cover - Intake bolts Not lining up
  140. 1998 STS Trouble Codes & Emission Test
  141. A positive HG repair experience
  142. 2000 DHS transmission light on
  143. Anyone that has pulled an N*? PLEASE! I need some advice.
  144. Blown Head Gasket Help
  145. Sell or Keep N*
  146. Best way to clean the engine bay?
  147. Shops that specilize in head gasket repair.
  148. oil loadup at idle
  149. EGR Cleaning - '97 ETC
  150. engine over heating..
  151. Cleared PCM codes - now emissions test not ready
  152. Madtuner.com
  153. N* 4.6 Bad Compression, Help Please
  154. Best Replacement Mount For 2000 Deville
  155. Do not stud a Northstar
  156. Drilling and Tapping The Northstar V8......my personal experience so far.
  157. Northstar TB upgrade
  158. 2002 Deville Transaxle
  159. clogged heater core
  160. 2000 Deville Base - Front Ground Wire
  161. fuel injectors,1993 4.6 northstar VIn Y
  162. Chips
  163. my STS...its a miracle!
  164. How to clean out fuel system in a 96 Eldorado sitting for 6 years.
  165. low oil pressure-'97 SLS
  166. Northstar exhaust
  167. Update on parts I have/had
  168. Northstar Smoke On Startup
  169. O5 DeVille Is That My Lifters I Hear????
  170. 2006 4.6 northstar performance upgrades
  171. 1995 SLS questions on codes
  172. Recommend Pro Mar in NJ for a Northstar Rebuild. :)
  173. Replacing a Northstar in my 2003 Seville...what should I check for?
  174. HELP! 1999 SLS Coolant leak
  175. 2008 DTS misfire issue
  176. P 0300 code 2005 DTS - can't find the miss
  177. .030" over head gasket?
  178. 4.6L 32 valve water in oil
  179. P 0306 code
  180. 2000 DHS - cooling system problems
  181. 1990 DeVille idles rough
  182. 1997 STS - hard start, backfire when cranking
  183. Tappets or Rocker Followers - Two Different Head Designs???
  184. 2004 0r 2006 ?
  185. Change cat?
  186. Changing the Serpentine belt on a VIN Y Northstar V8
  187. 2006 Northstar 4.6 overheating
  188. 2002 STS Bottom end repaired early on.........questions
  189. 2002 DTS Northstar questions
  190. Northstar Water Pump Mounting Changes - Year?
  191. 94 SLS feels like its going to stall when at stoplight
  192. 2000 DTS - Overheating Issues
  193. 2001 Northstar piston to rod orientation?
  194. Should I clean my EGR valve also replace air pump
  195. Best transmission for a Northstar to LaSalle Street Rod swap
  196. Would these chain tensioners cause excessive engine noise?
  197. Rebuilt 4.6 from Davis Auto Repair or Cadillac Doctor
  198. Real bad oil leak!
  199. P0719how much coukd this code cost me
  200. Drink coasters from engine cover emblems.
  201. Strange compression test results, oil inside intake manifold & smoke !!
  202. Bore heads for larger headbolts or stud/insert ?
  203. Diffrence from 2000 and 2006 northstar engine?
  204. Exxon valdez
  205. 97 ETC Head Gasket Project
  206. 1998 Deville Northstar - ready to get my hands dirty
  207. Northstar V-8 Engine - Gasoline Issue
  208. Engine shaking
  209. Piston pin
  210. Northstar cam timing and chain problem
  211. Small Oil Leak and Smell in 2000 Cadillac Deville
  212. Are 2001 y code transmissions AAN and VAN interchangeable?
  213. Crank question
  214. Where Does This Bracket Go??
  215. LD8 non-interference motor?
  216. Losing Compression
  217. where is thermostat
  218. Issues with code P 0411 - 2006 DTS
  219. 96 Deville won't idle down, hard start and backfires when cold
  220. 99 DeVille D'elegance
  221. Northstar build
  222. Intermediate Timing Chain Gear fit
  223. Fuel pressure jumping up and down on my 1998 Eldorado
  224. Mystery klanking sound.. over 200K N*
  225. GUZZLING GAS!!! 2000 Deville...
  226. 96 Northstar Build
  227. Misfire - 2001 Deville
  228. To fix the Blown Head Gasket, how hard is it if DIY?
  229. Help-Broke Oil Pressure Switch wires while replaceing CKP's 03 Deville
  230. Piston detonation evidence - 1998 Northstar
  231. Coolant crossover
  232. Northstar V8 and 4T80E questions
  233. 2002 SLS Code P 0401
  234. DTS oil level and change oil soon messages
  235. Rough Idle After Retiming.
  236. Yet another oil question - mix SAE 30 with 10W-30 ?
  237. No acceleration... 2000 Deville
  238. Northstar Manual Transmission Possibility?
  239. Idling Trouble for 2004 Deville
  240. Timing chain issue, not lining up? stretched chain possibly?
  241. Rough idle/shuddering and misfires...2004 SRX Northstar
  242. Northstar oil flow diagram - oil in a head bolt hole
  243. Coolant Temperature Problem
  244. SES Light - codes P0171 & P0174 - 2004 Seville
  245. Oil filter
  246. Used Northstar powertrains-FS
  247. production codes
  248. radiator cooling in cold temps
  249. Can anyone identify this?
  250. 2005 Northstar Knock on Start Up