: Northstar Engines and System Technical Discussion



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  1. Pros & Cons Cadillac 4.6 vs Ford 4.6 (eg lincoln mark viii and others)
  2. Codes P0171, P0174 and P1258 come up on 1997 Deville
  3. Coil pack
  4. Eastern Massachusetts Cadillac shops?
  5. voltage question
  6. Bouncing Idles - 1995 SLS Northstar
  7. 2000 STS question
  8. Northstar maintenance requirements - 2005 Deville
  9. Brand New 1993-1994 Northstar Engine - Oil Leak Modified or Not
  10. Hard Starting Warm - if not Pedal to the Metal
  11. DHS 2000 won't start after changing CranKshaft and CaMshaft Position Sensors
  12. 1996 Deville over heats when ac is on
  13. HG question - 1997 Eldorado, 127000 miles
  14. need help
  15. Now what do I do? Northstar block casting porosity
  16. Coolant all over top of engine?
  17. 97 SLS Overheating - I've checked everything and need ideas
  18. 03 Deville hard idle and bogging out lower speeds
  19. 2003 Deville CKP codes
  20. P 0300 random misfire - 2000 STS
  21. Northstar Performance rebuilt engine
  22. exhaust buzzing noise 2006 dts
  23. Northstar head repair in Chicagoland area
  24. Guide pins
  25. Installing Rear Main Seal with Crank Removed
  26. Heater core follows head gasket ?
  27. 99 SLS overheating, need help
  28. Fixing Head Gasket
  29. Kent-Moore VS Time-sert
  30. Bought 1998 Deville 4 days ago - overheating
  31. Northstar: Did they ever get better?
  32. I need step by step procedure to replace a 2005 STS motor LH2 quickly
  33. HG test and green result
  34. Eliminating/raising the speed limiter - how to?
  35. Water pump removal socket-northstar
  36. Lurching idle
  37. 5.3 motor
  38. 95 Eldorado alternator plug wiring
  39. OVERHEATING (Long)
  40. 2000 Deville Motor Mount Heat Shield
  41. 95-99 Engine Beauty Cover - Intake bolts Not lining up
  42. 1998 STS Trouble Codes & Emission Test
  43. A positive HG repair experience
  44. 2000 DHS transmission light on
  45. Anyone that has pulled an N*? PLEASE! I need some advice.
  46. Blown Head Gasket Help
  47. Sell or Keep N*
  48. Best way to clean the engine bay?
  49. Shops that specilize in head gasket repair.
  50. oil loadup at idle
  51. EGR Cleaning - '97 ETC
  52. engine over heating..
  53. Cleared PCM codes - now emissions test not ready
  54. Madtuner.com
  55. N* 4.6 Bad Compression, Help Please
  56. Best Replacement Mount For 2000 Deville
  57. Do not stud a Northstar
  58. Drilling and Tapping The Northstar V8......my personal experience so far.
  59. Northstar TB upgrade
  60. 2002 Deville Transaxle
  61. clogged heater core
  62. 2000 Deville Base - Front Ground Wire
  63. fuel injectors,1993 4.6 northstar VIn Y
  64. Chips
  65. my STS...its a miracle!
  66. How to clean out fuel system in a 96 Eldorado sitting for 6 years.
  67. low oil pressure-'97 SLS
  68. Northstar exhaust
  69. Update on parts I have/had
  70. Northstar Smoke On Startup
  71. O5 DeVille Is That My Lifters I Hear????
  72. 2006 4.6 northstar performance upgrades
  73. 1995 SLS questions on codes
  74. Recommend Pro Mar in NJ for a Northstar Rebuild. :)
  75. Replacing a Northstar in my 2003 Seville...what should I check for?
  76. HELP! 1999 SLS Coolant leak
  77. 2008 DTS misfire issue
  78. P 0300 code 2005 DTS - can't find the miss
  79. .030" over head gasket?
  80. 4.6L 32 valve water in oil
  81. P 0306 code
  82. 2000 DHS - cooling system problems
  83. 1990 DeVille idles rough
  84. 1997 STS - hard start, backfire when cranking
  85. Tappets or Rocker Followers - Two Different Head Designs???
  86. 2004 0r 2006 ?
  87. Change cat?
  88. Changing the Serpentine belt on a VIN Y Northstar V8
  89. 2006 Northstar 4.6 overheating
  90. 2002 STS Bottom end repaired early on.........questions
  91. 2002 DTS Northstar questions
  92. Northstar Water Pump Mounting Changes - Year?
  93. 94 SLS feels like its going to stall when at stoplight
  94. 2000 DTS - Overheating Issues
  95. 2001 Northstar piston to rod orientation?
  96. Should I clean my EGR valve also replace air pump
  97. Best transmission for a Northstar to LaSalle Street Rod swap
  98. Would these chain tensioners cause excessive engine noise?
  99. Rebuilt 4.6 from Davis Auto Repair or Cadillac Doctor
  100. Real bad oil leak!
  101. P0719how much coukd this code cost me
  102. Drink coasters from engine cover emblems.
  103. Strange compression test results, oil inside intake manifold & smoke !!
  104. Bore heads for larger headbolts or stud/insert ?
  105. Diffrence from 2000 and 2006 northstar engine?
  106. Exxon valdez
  107. 97 ETC Head Gasket Project
  108. 1998 Deville Northstar - ready to get my hands dirty
  109. Northstar V-8 Engine - Gasoline Issue
  110. Engine shaking
  111. Piston pin
  112. Northstar cam timing and chain problem
  113. Small Oil Leak and Smell in 2000 Cadillac Deville
  114. Are 2001 y code transmissions AAN and VAN interchangeable?
  115. Crank question
  116. Where Does This Bracket Go??
  117. LD8 non-interference motor?
  118. Losing Compression
  119. where is thermostat
  120. Issues with code P 0411 - 2006 DTS
  121. 96 Deville won't idle down, hard start and backfires when cold
  122. 99 DeVille D'elegance
  123. Northstar build
  124. Intermediate Timing Chain Gear fit
  125. Fuel pressure jumping up and down on my 1998 Eldorado
  126. Mystery klanking sound.. over 200K N*
  127. GUZZLING GAS!!! 2000 Deville...
  128. 96 Northstar Build
  129. Misfire - 2001 Deville
  130. To fix the Blown Head Gasket, how hard is it if DIY?
  131. Help-Broke Oil Pressure Switch wires while replaceing CKP's 03 Deville
  132. Piston detonation evidence - 1998 Northstar
  133. Coolant crossover
  134. Northstar V8 and 4T80E questions
  135. 2002 SLS Code P 0401
  136. DTS oil level and change oil soon messages
  137. Rough Idle After Retiming.
  138. Yet another oil question - mix SAE 30 with 10W-30 ?
  139. No acceleration... 2000 Deville
  140. Northstar Manual Transmission Possibility?
  141. Idling Trouble for 2004 Deville
  142. Timing chain issue, not lining up? stretched chain possibly?
  143. Rough idle/shuddering and misfires...2004 SRX Northstar
  144. Northstar oil flow diagram - oil in a head bolt hole
  145. Coolant Temperature Problem
  146. SES Light - codes P0171 & P0174 - 2004 Seville
  147. Oil filter
  148. Used Northstar powertrains-FS
  149. production codes
  150. radiator cooling in cold temps
  151. Can anyone identify this?
  152. 2005 Northstar Knock on Start Up
  153. Swap engine from 2006-2007 into 2000 DTS ?
  154. 1994 Concours - head gasket replacement ?
  155. p0154/0151
  156. Engine cover removal
  157. Northstar Overheating Problem- Is it possible to live with or even avoid...?
  158. oops ruined a couple studs by accident
  159. Looking for a cartridge style rear main seal installer
  160. need a new motor!
  161. cataclean info
  162. Northstar Performance SLOW!!!!!!!!!!!!!!
  163. CODES of past ,present,future?
  164. CKP & OP Sensors AND Oil Filter Adapter Sealing, Servicing - Candidate 4 Sticky
  165. 1998 Eldorado failed HG
  166. need a little advice on what im looking at
  167. 97 Concours won't start now
  168. 1997 ETC engine performance upgrades
  169. 2006-2009 DTS Common Problems
  170. Engine randomly stalls when it rains and ran into another problem
  171. Pre-'05 4T80E Torque Converter Upgrade from viscous silicone to '05-later EC3?
  172. Looking for Northstar experts in or around Atlanta, GA
  173. Northstar water pump 2006-2011
  174. STP High mileage oil additive.
  175. Re: 2000+ Northstar Plenum Replacement steps
  176. NO oil war just info on dexos,please
  177. The Stumbling, The Codes and The Solution
  178. Engine knock after rebuild 2005 northstar
  179. 01 STS - Head Gasket - Perm or Temp/Quick Fix Solution
  180. Main Cap Bolt broken in block, UGHH.
  181. location of starter
  182. 1995 STS starter questions and seeking advice
  183. dog bones life span
  184. Engine parts cleaning during overhaul
  185. 2000 STS Northstar coolant problems
  186. Transaxle leaking
  187. Northstar head gasket problem
  188. 2000 Deville Code P0741 & P1860
  189. Motor Mounts
  190. Just bought a 99 Deville - question about the oil
  191. Buyer beware
  192. HOW TO: Change surge tank (and coolant) on a 96 VIN Y DeVille
  193. tapping sound
  194. hard shifting
  195. hard start, hi reving cadillac after storage
  196. oil leak. water pump camshaft
  197. 1998 caddy STS fixed wp pulleys & belt. More issues!!!
  198. Northstar - any thoughts or advice ????
  199. More big props to joe
  200. Plenum Issue??? AIR system issue ???
  201. 1999 Deville PCM codes - can you tune it?
  202. Overheating Northstars and bleeder valves
  203. How do you find tdc on cylinder #1 using timing marks?
  204. Cadillac Deville 2000 plugs and boots
  205. 2000 STS code 9 swapping to 2001 Y code engine
  206. 1996 STS - P1406 DTC with bucking and hesitation
  207. Quick and Dirty 97 Deville HG Job
  208. Check engine light won't go away???
  209. How do I drain ALL the coolant?
  210. High Mileage engine oil question
  211. Northstar Head/Engine removal
  212. A question for the more experienced N* gear-heads on site. Gasket or rings?
  213. Torque Spec for ARP Studs in Northstar
  214. Unusual noises or am I crazy?
  215. Exhaust parts needed
  216. CF chips
  217. Oil percentage - OLM information
  218. False Overheating?
  219. Issues Removing Crank Pulley
  220. Having HG problems and ordered NORTHSTAR PERFORMANCE studs...
  221. help with removing engine from 97 deville
  222. Oil Drain plug seized...can you use an air impact to remove without damage?
  223. 97 Deville Won't Start
  224. 2003 STS Idle/MAF/Coolant temp issues/Driving itself
  225. smokey the bandit!
  226. Engine misfire at certain times of the day - 2003 STS
  227. Can I use regular torque numbers on my cylinder heads?
  228. Concerns with my 1997 Northstar Engine
  229. 99 Deville Concours with cracked block!
  230. heater tube connection leak
  231. How To Remove Heater Core Hoses ? - 1997 Deville
  232. Northstar rev limiter
  233. New Owner 93 Eldorado pic. ? about HG issues in the early Northstars
  234. Is this the worst rusty engine you have seen?
  235. small coolant drip where sensor mounts
  236. Best way to flush cooling system
  237. For those that wish to "plug in & play"....late 90's N* crate engine
  238. 4.0 Northstar Performance Upgrade
  239. Seeking N* help in VA.....
  240. 98 Deville D'Elegance Stays At 222 F
  241. 1998 Eldorado - DexCool mix
  242. Size of hose used to connect heater line tubing
  243. 99DeVille_NrthSt*r's Project Thread
  244. 97 Deville Concours - Rough Starting
  245. Top pullers, I need help with a bolt
  246. 99 DeVille Electrical Harness
  247. Northstar Performance - Cylinder Head Studs. Stock Issues Resolved.
  248. 96 deville crossover gasket
  249. The best sealant for the oil pan gasket
  250. Vacuum Leak after WOT (P0101) - 2003 STS