: Northstar Engines and System Technical Discussion



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