: Northstar Engines and System Technical Discussion



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