: Northstar Engines and System Technical Discussion



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  1. Best Replacement Mount For 2000 Deville
  2. Do not stud a Northstar
  3. Drilling and Tapping The Northstar V8......my personal experience so far.
  4. Northstar TB upgrade
  5. 2002 Deville Transaxle
  6. clogged heater core
  7. 2000 Deville Base - Front Ground Wire
  8. fuel injectors,1993 4.6 northstar VIn Y
  9. Chips
  10. my STS...its a miracle!
  11. How to clean out fuel system in a 96 Eldorado sitting for 6 years.
  12. low oil pressure-'97 SLS
  13. Northstar exhaust
  14. Update on parts I have/had
  15. Northstar Smoke On Startup
  16. O5 DeVille Is That My Lifters I Hear????
  17. 2006 4.6 northstar performance upgrades
  18. 1995 SLS questions on codes
  19. Recommend Pro Mar in NJ for a Northstar Rebuild. :)
  20. Replacing a Northstar in my 2003 Seville...what should I check for?
  21. HELP! 1999 SLS Coolant leak
  22. 2008 DTS misfire issue
  23. P 0300 code 2005 DTS - can't find the miss
  24. .030" over head gasket?
  25. 4.6L 32 valve water in oil
  26. P 0306 code
  27. 2000 DHS - cooling system problems
  28. 1990 DeVille idles rough
  29. 1997 STS - hard start, backfire when cranking
  30. Tappets or Rocker Followers - Two Different Head Designs???
  31. 2004 0r 2006 ?
  32. Change cat?
  33. Changing the Serpentine belt on a VIN Y Northstar V8
  34. 2006 Northstar 4.6 overheating
  35. 2002 STS Bottom end repaired early on.........questions
  36. 2002 DTS Northstar questions
  37. Northstar Water Pump Mounting Changes - Year?
  38. 94 SLS feels like its going to stall when at stoplight
  39. 2000 DTS - Overheating Issues
  40. 2001 Northstar piston to rod orientation?
  41. Should I clean my EGR valve also replace air pump
  42. Best transmission for a Northstar to LaSalle Street Rod swap
  43. Would these chain tensioners cause excessive engine noise?
  44. Rebuilt 4.6 from Davis Auto Repair or Cadillac Doctor
  45. Real bad oil leak!
  46. P0719how much coukd this code cost me
  47. Drink coasters from engine cover emblems.
  48. Strange compression test results, oil inside intake manifold & smoke !!
  49. Bore heads for larger headbolts or stud/insert ?
  50. Diffrence from 2000 and 2006 northstar engine?
  51. Exxon valdez
  52. 97 ETC Head Gasket Project
  53. 1998 Deville Northstar - ready to get my hands dirty
  54. Northstar V-8 Engine - Gasoline Issue
  55. Engine shaking
  56. Piston pin
  57. Northstar cam timing and chain problem
  58. Small Oil Leak and Smell in 2000 Cadillac Deville
  59. Are 2001 y code transmissions AAN and VAN interchangeable?
  60. Crank question
  61. Where Does This Bracket Go??
  62. LD8 non-interference motor?
  63. Losing Compression
  64. where is thermostat
  65. Issues with code P 0411 - 2006 DTS
  66. 96 Deville won't idle down, hard start and backfires when cold
  67. 99 DeVille D'elegance
  68. Northstar build
  69. Intermediate Timing Chain Gear fit
  70. Fuel pressure jumping up and down on my 1998 Eldorado
  71. Mystery klanking sound.. over 200K N*
  72. GUZZLING GAS!!! 2000 Deville...
  73. 96 Northstar Build
  74. Misfire - 2001 Deville
  75. To fix the Blown Head Gasket, how hard is it if DIY?
  76. Help-Broke Oil Pressure Switch wires while replaceing CKP's 03 Deville
  77. Piston detonation evidence - 1998 Northstar
  78. Coolant crossover
  79. Northstar V8 and 4T80E questions
  80. 2002 SLS Code P 0401
  81. DTS oil level and change oil soon messages
  82. Rough Idle After Retiming.
  83. Yet another oil question - mix SAE 30 with 10W-30 ?
  84. No acceleration... 2000 Deville
  85. Northstar Manual Transmission Possibility?
  86. Idling Trouble for 2004 Deville
  87. Timing chain issue, not lining up? stretched chain possibly?
  88. Rough idle/shuddering and misfires...2004 SRX Northstar
  89. Northstar oil flow diagram - oil in a head bolt hole
  90. Coolant Temperature Problem
  91. SES Light - codes P0171 & P0174 - 2004 Seville
  92. Oil filter
  93. Used Northstar powertrains-FS
  94. production codes
  95. radiator cooling in cold temps
  96. Can anyone identify this?
  97. 2005 Northstar Knock on Start Up
  98. Swap engine from 2006-2007 into 2000 DTS ?
  99. 1994 Concours - head gasket replacement ?
  100. p0154/0151
  101. Engine cover removal
  102. Northstar Overheating Problem- Is it possible to live with or even avoid...?
  103. oops ruined a couple studs by accident
  104. Looking for a cartridge style rear main seal installer
  105. need a new motor!
  106. cataclean info
  107. Northstar Performance SLOW!!!!!!!!!!!!!!
  108. CODES of past ,present,future?
  109. CKP & OP Sensors AND Oil Filter Adapter Sealing, Servicing - Candidate 4 Sticky
  110. 1998 Eldorado failed HG
  111. need a little advice on what im looking at
  112. 97 Concours won't start now
  113. 1997 ETC engine performance upgrades
  114. 2006-2009 DTS Common Problems
  115. Engine randomly stalls when it rains and ran into another problem
  116. Pre-'05 4T80E Torque Converter Upgrade from viscous silicone to '05-later EC3?
  117. Looking for Northstar experts in or around Atlanta, GA
  118. Northstar water pump 2006-2011
  119. STP High mileage oil additive.
  120. Re: 2000+ Northstar Plenum Replacement steps
  121. NO oil war just info on dexos,please
  122. The Stumbling, The Codes and The Solution
  123. Engine knock after rebuild 2005 northstar
  124. 01 STS - Head Gasket - Perm or Temp/Quick Fix Solution
  125. Main Cap Bolt broken in block, UGHH.
  126. location of starter
  127. 1995 STS starter questions and seeking advice
  128. dog bones life span
  129. Engine parts cleaning during overhaul
  130. 2000 STS Northstar coolant problems
  131. Transaxle leaking
  132. Northstar head gasket problem
  133. 2000 Deville Code P0741 & P1860
  134. Motor Mounts
  135. Just bought a 99 Deville - question about the oil
  136. Buyer beware
  137. HOW TO: Change surge tank (and coolant) on a 96 VIN Y DeVille
  138. tapping sound
  139. hard shifting
  140. hard start, hi reving cadillac after storage
  141. oil leak. water pump camshaft
  142. 1998 caddy STS fixed wp pulleys & belt. More issues!!!
  143. Northstar - any thoughts or advice ????
  144. More big props to joe
  145. Plenum Issue??? AIR system issue ???
  146. 1999 Deville PCM codes - can you tune it?
  147. Overheating Northstars and bleeder valves
  148. How do you find tdc on cylinder #1 using timing marks?
  149. Cadillac Deville 2000 plugs and boots
  150. 2000 STS code 9 swapping to 2001 Y code engine
  151. 1996 STS - P1406 DTC with bucking and hesitation
  152. Quick and Dirty 97 Deville HG Job
  153. Check engine light won't go away???
  154. How do I drain ALL the coolant?
  155. High Mileage engine oil question
  156. Northstar Head/Engine removal
  157. A question for the more experienced N* gear-heads on site. Gasket or rings?
  158. Torque Spec for ARP Studs in Northstar
  159. Unusual noises or am I crazy?
  160. Exhaust parts needed
  161. CF chips
  162. Oil percentage - OLM information
  163. False Overheating?
  164. Issues Removing Crank Pulley
  165. Having HG problems and ordered NORTHSTAR PERFORMANCE studs...
  166. help with removing engine from 97 deville
  167. Oil Drain plug seized...can you use an air impact to remove without damage?
  168. 97 Deville Won't Start
  169. 2003 STS Idle/MAF/Coolant temp issues/Driving itself
  170. smokey the bandit!
  171. Engine misfire at certain times of the day - 2003 STS
  172. Can I use regular torque numbers on my cylinder heads?
  173. Concerns with my 1997 Northstar Engine
  174. 99 Deville Concours with cracked block!
  175. heater tube connection leak
  176. How To Remove Heater Core Hoses ? - 1997 Deville
  177. Northstar rev limiter
  178. New Owner 93 Eldorado pic. ? about HG issues in the early Northstars
  179. Is this the worst rusty engine you have seen?
  180. small coolant drip where sensor mounts
  181. Best way to flush cooling system
  182. For those that wish to "plug in & play"....late 90's N* crate engine
  183. 4.0 Northstar Performance Upgrade
  184. Seeking N* help in VA.....
  185. 98 Deville D'Elegance Stays At 222 F
  186. 1998 Eldorado - DexCool mix
  187. Size of hose used to connect heater line tubing
  188. 99DeVille_NrthSt*r's Project Thread
  189. 97 Deville Concours - Rough Starting
  190. Top pullers, I need help with a bolt
  191. 99 DeVille Electrical Harness
  192. Northstar Performance - Cylinder Head Studs. Stock Issues Resolved.
  193. 96 deville crossover gasket
  194. The best sealant for the oil pan gasket
  195. Vacuum Leak after WOT (P0101) - 2003 STS
  196. Does anyone know a good Cadillac mechanic in the NYC area
  197. Great deal on Rear Main Seal installer... but better hurry!
  198. Head Gasket Kit Verification
  199. Is it worth it?
  200. Results of coolant in oil
  201. 2000 Deville shakes at Idle, No DTC's
  202. Engine block cracked - Northstar Performance, where are you ?
  203. Cradle swapping possibilities
  204. Non Production VVT Northstar
  205. Jake Northstar Performance - stud problems
  206. Update on remanufactured Northstar Performance engine. 1 year later
  207. Head Gasket Questions
  208. Another overheating northstar....
  209. Northstar interesting stuff....
  210. '00 Deville sat for year. Coolant, Battery, Misfire, Brake fluid problems HELP
  211. Northstar Water Pump Housing Replacment
  212. my 1995 Cadillac Eldorado Overheating
  213. Seafoam - do you use it?
  214. Another N* Oil Pump question
  215. 2005 DTS Head gasket still a problem?
  216. Gforce performance "chip" ?
  217. SureGrip studded Eldo for sale?!!
  218. I'm relocating,,,,new complaints section....
  219. Remote key fob
  220. oil manifold question
  221. How do you clean ring grooves on pistons?
  222. Video. For those who want to see CNC machining in action.
  223. Plugs - Spark plugs for a Northstar ??
  224. Want To Buy N* stud tool kit
  225. What happened? Stored 1996 Deville engine knock
  226. Northstar head gasket repair
  227. WOT problem and P0300 - 2000 Eldorado
  228. Marks Turbocharged 99 STS
  229. water pump leak after replacing pump/seal
  230. Missing shield in cam cover?
  231. tight northstar cam chain
  232. front motor mounts
  233. northstar studs
  234. 2000 Deville - high pitched whistle
  235. 99 Deville HG job 4-2012
  236. I have a set of studs available if someone needs them thanks to my previous thread
  237. DIY Northstar Head Gasket / Crankcase Leak Repair
  238. 1997 Seville temperature problems
  239. Don't Wait More Than 120 days
  240. How to tell if head gaskets have been done before?
  241. Need top compression ring 98 N*....ugghhh
  242. 18mm Northstar Crankbolt needed
  243. 98 Eldorado replacing Engine Torque Mounts
  244. Troubleshooting help
  245. New Northstar Crate Engine
  246. Valve stem seal tool?
  247. Code P070 with stalling and surging-TPS or ISC?
  248. Huge thanks to Joe at Midwest Cadillac Repair
  249. Factory air intake question
  250. Bent pushrod - valvetrain noise ?