: Northstar Engines and System Technical Discussion



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