: Northstar Engines and System Technical Discussion



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