: Northstar Engines and System Technical Discussion



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