: Northstar Engines and System Technical Discussion



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  1. production codes
  2. radiator cooling in cold temps
  3. Can anyone identify this?
  4. 2005 Northstar Knock on Start Up
  5. Swap engine from 2006-2007 into 2000 DTS ?
  6. 1994 Concours - head gasket replacement ?
  7. p0154/0151
  8. Engine cover removal
  9. Northstar Overheating Problem- Is it possible to live with or even avoid...?
  10. oops ruined a couple studs by accident
  11. Looking for a cartridge style rear main seal installer
  12. need a new motor!
  13. cataclean info
  14. Northstar Performance SLOW!!!!!!!!!!!!!!
  15. CODES of past ,present,future?
  16. CKP & OP Sensors AND Oil Filter Adapter Sealing, Servicing - Candidate 4 Sticky
  17. 1998 Eldorado failed HG
  18. need a little advice on what im looking at
  19. 97 Concours won't start now
  20. 1997 ETC engine performance upgrades
  21. 2006-2009 DTS Common Problems
  22. Engine randomly stalls when it rains and ran into another problem
  23. Pre-'05 4T80E Torque Converter Upgrade from viscous silicone to '05-later EC3?
  24. Looking for Northstar experts in or around Atlanta, GA
  25. Northstar water pump 2006-2011
  26. STP High mileage oil additive.
  27. Re: 2000+ Northstar Plenum Replacement steps
  28. NO oil war just info on dexos,please
  29. The Stumbling, The Codes and The Solution
  30. Engine knock after rebuild 2005 northstar
  31. 01 STS - Head Gasket - Perm or Temp/Quick Fix Solution
  32. Main Cap Bolt broken in block, UGHH.
  33. location of starter
  34. 1995 STS starter questions and seeking advice
  35. dog bones life span
  36. Engine parts cleaning during overhaul
  37. 2000 STS Northstar coolant problems
  38. Transaxle leaking
  39. Northstar head gasket problem
  40. 2000 Deville Code P0741 & P1860
  41. Motor Mounts
  42. Just bought a 99 Deville - question about the oil
  43. Buyer beware
  44. HOW TO: Change surge tank (and coolant) on a 96 VIN Y DeVille
  45. tapping sound
  46. hard shifting
  47. hard start, hi reving cadillac after storage
  48. oil leak. water pump camshaft
  49. 1998 caddy STS fixed wp pulleys & belt. More issues!!!
  50. Northstar - any thoughts or advice ????
  51. More big props to joe
  52. Plenum Issue??? AIR system issue ???
  53. 1999 Deville PCM codes - can you tune it?
  54. Overheating Northstars and bleeder valves
  55. How do you find tdc on cylinder #1 using timing marks?
  56. Cadillac Deville 2000 plugs and boots
  57. 2000 STS code 9 swapping to 2001 Y code engine
  58. 1996 STS - P1406 DTC with bucking and hesitation
  59. Quick and Dirty 97 Deville HG Job
  60. Check engine light won't go away???
  61. How do I drain ALL the coolant?
  62. High Mileage engine oil question
  63. Northstar Head/Engine removal
  64. A question for the more experienced N* gear-heads on site. Gasket or rings?
  65. Torque Spec for ARP Studs in Northstar
  66. Unusual noises or am I crazy?
  67. Exhaust parts needed
  68. CF chips
  69. Oil percentage - OLM information
  70. False Overheating?
  71. Issues Removing Crank Pulley
  72. Having HG problems and ordered NORTHSTAR PERFORMANCE studs...
  73. help with removing engine from 97 deville
  74. Oil Drain plug seized...can you use an air impact to remove without damage?
  75. 97 Deville Won't Start
  76. 2003 STS Idle/MAF/Coolant temp issues/Driving itself
  77. smokey the bandit!
  78. Engine misfire at certain times of the day - 2003 STS
  79. Can I use regular torque numbers on my cylinder heads?
  80. Concerns with my 1997 Northstar Engine
  81. 99 Deville Concours with cracked block!
  82. heater tube connection leak
  83. How To Remove Heater Core Hoses ? - 1997 Deville
  84. Northstar rev limiter
  85. New Owner 93 Eldorado pic. ? about HG issues in the early Northstars
  86. Is this the worst rusty engine you have seen?
  87. small coolant drip where sensor mounts
  88. Best way to flush cooling system
  89. For those that wish to "plug in & play"....late 90's N* crate engine
  90. 4.0 Northstar Performance Upgrade
  91. Seeking N* help in VA.....
  92. 98 Deville D'Elegance Stays At 222 F
  93. 1998 Eldorado - DexCool mix
  94. Size of hose used to connect heater line tubing
  95. 99DeVille_NrthSt*r's Project Thread
  96. 97 Deville Concours - Rough Starting
  97. Top pullers, I need help with a bolt
  98. 99 DeVille Electrical Harness
  99. Northstar Performance - Cylinder Head Studs. Stock Issues Resolved.
  100. 96 deville crossover gasket
  101. The best sealant for the oil pan gasket
  102. Vacuum Leak after WOT (P0101) - 2003 STS
  103. Does anyone know a good Cadillac mechanic in the NYC area
  104. Great deal on Rear Main Seal installer... but better hurry!
  105. Head Gasket Kit Verification
  106. Is it worth it?
  107. Results of coolant in oil
  108. 2000 Deville shakes at Idle, No DTC's
  109. Engine block cracked - Northstar Performance, where are you ?
  110. Cradle swapping possibilities
  111. Non Production VVT Northstar
  112. Jake Northstar Performance - stud problems
  113. Update on remanufactured Northstar Performance engine. 1 year later
  114. Head Gasket Questions
  115. Another overheating northstar....
  116. Northstar interesting stuff....
  117. '00 Deville sat for year. Coolant, Battery, Misfire, Brake fluid problems HELP
  118. Northstar Water Pump Housing Replacment
  119. my 1995 Cadillac Eldorado Overheating
  120. Seafoam - do you use it?
  121. Another N* Oil Pump question
  122. 2005 DTS Head gasket still a problem?
  123. Gforce performance "chip" ?
  124. SureGrip studded Eldo for sale?!!
  125. I'm relocating,,,,new complaints section....
  126. Remote key fob
  127. oil manifold question
  128. How do you clean ring grooves on pistons?
  129. Video. For those who want to see CNC machining in action.
  130. Plugs - Spark plugs for a Northstar ??
  131. Want To Buy N* stud tool kit
  132. What happened? Stored 1996 Deville engine knock
  133. Northstar head gasket repair
  134. WOT problem and P0300 - 2000 Eldorado
  135. Marks Turbocharged 99 STS
  136. water pump leak after replacing pump/seal
  137. Missing shield in cam cover?
  138. tight northstar cam chain
  139. front motor mounts
  140. northstar studs
  141. 2000 Deville - high pitched whistle
  142. 99 Deville HG job 4-2012
  143. I have a set of studs available if someone needs them thanks to my previous thread
  144. DIY Northstar Head Gasket / Crankcase Leak Repair
  145. 1997 Seville temperature problems
  146. Don't Wait More Than 120 days
  147. How to tell if head gaskets have been done before?
  148. Need top compression ring 98 N*....ugghhh
  149. 18mm Northstar Crankbolt needed
  150. 98 Eldorado replacing Engine Torque Mounts
  151. Troubleshooting help
  152. New Northstar Crate Engine
  153. Valve stem seal tool?
  154. Code P070 with stalling and surging-TPS or ISC?
  155. Huge thanks to Joe at Midwest Cadillac Repair
  156. Factory air intake question
  157. Bent pushrod - valvetrain noise ?
  158. '01 DTS Misfire.
  159. Thread size for Jake's studs?
  160. Drive Train Hum & No Overdrive
  161. Towing in third gear
  162. 2004 Deville PCM
  163. 01 Deville OverHeating Issue
  164. Please help diagnose my cooling system problem
  165. Overheating
  166. Is there an alternate way to lock the flywheel?
  167. northstar stud kit
  168. What engines are compatible with 2000 seville sts.... Coil to spark plug type.....
  169. Coolant Reservoir Overflow Line
  170. N* Upper to Lower block half sealing procedure.
  171. To re-seal or not?
  172. How do you SAFELY clean the valve covers?
  173. 98 ETC Head Gasket project started today...
  174. 2002 Eldorado ETC Head Gasket Project
  175. 97 N* Crank Pulley / Oil Pump Torque setting
  176. WP cam price
  177. 2001 Deville VIN Y - head gasket repair on Long Island ?
  178. Anyone want to compare MAF readings?
  179. Wheres Jake? We need studs and engines !!!
  180. serp belt
  181. Question about the Northstar PCM
  182. 96 Sedan De Ville V8 Northstar Over Heating
  183. po 300, po 507 need help asap!!
  184. 1997 STS N* connecting rod stamped number
  185. Is there an on-line breakdown of N* engine parts with GM part numbers?
  186. Torque specs on fasteners - torque angle?
  187. Northstar headbolt spacing/ pattern
  188. 95 eldorado 8th letter of vin is y
  189. Recently purchaced 2003 Cadillac Dev
  190. engine swap for a 2000 dts to a 2003 devell can it work i
  191. Jake, I REALLY, REALLY want to give you some money!
  192. Saga of a naive Head Gasket repair
  193. Cracked block!!!!
  194. What causes a headgasket failure?
  195. Spark advance/knock - What is tolerance?
  196. Towing with 02 Deville
  197. Northstar Temp sensor & Lock up converter ?'s
  198. P119 and p080
  199. Another (slightly different) Northstar oil consumption question.....
  200. holley injector harness
  201. Northstar oil pump failure
  202. 4.6 Rod Clearance
  203. Thank You
  204. Scratched Wall
  205. 4T80E Electronically controlled torque converter clutch
  206. Do The 2006 and newer DTS Northstars have the same headgasket issues?
  207. Feels like a miss?
  208. Need some advice for Northstar car purchase...
  209. need help with rough running northstsar
  210. '03 DeVille - Slight shudder under initial acceleration
  211. how can i check if head gasket leaks
  212. 1994 Deville Concours Ignition Control Module Replacement
  213. Get it while you can..........
  214. Backfiring issues
  215. Rear main seal install tool confusion
  216. surges/sputters while driving, but idles perfectly fine?
  217. Code P041 and Code P025 in 1994 Deville Concours
  218. Northstar 4.6 Overheating
  219. Differences of studs vs. Timeserts
  220. 94 deville concours northstar catalytic converter redhot and stalls
  221. dipstick level, which side to believe?
  222. 2002 Eldorado coolant flush what kind?
  223. Heated Seat Issue..Please Help!
  224. Running on 4 Cylinders..not in Overheat mode
  225. 2002 Deville, White Smoke when Ideling
  226. 1999 Deville w/ Northstar coolant issue
  227. Another 2000+ head gasket failure
  228. 01 Deville DHS N* Repair in DFW Metroplex
  229. SureGrip stud kit / jig combo allignment?
  230. How hard to try to pull the head bolts on Northstar?
  231. How do I pull the airbox in my Eldo?
  232. 2000 Deville Crank Sensor Problems.. Please help if you can..
  233. ethanol or not
  234. Areas to look at while doing a HG repair
  235. PCM/EBTCM Pin Diagram, 2001 SLS
  236. Jake, wish you best of Luck !!
  237. What wire for the Speedo?
  238. Time sert kit kit # 500
  239. Torque Converter Whine
  240. PCM and engine switching
  241. 4T80E Viscous Torque Converter Internals / Clutch Failure (Lots of pictures included)
  242. timeserts
  243. Northstar removal
  244. Blocks, cracks and heat
  245. Please help: 1996 deville hard starting ?
  246. 2000 deville using oil HELP !
  247. 2003 Deville engine start problem
  248. What exactly is a "base model" Deville ?
  249. need to replace flywheel
  250. Service engine light