: Northstar Engines and System Technical Discussion



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