: Northstar Engines and System Technical Discussion



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