: Northstar Engines and System Technical Discussion



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  1. Idling Trouble for 2004 Deville
  2. Timing chain issue, not lining up? stretched chain possibly?
  3. Rough idle/shuddering and misfires...2004 SRX Northstar
  4. Northstar oil flow diagram - oil in a head bolt hole
  5. Coolant Temperature Problem
  6. SES Light - codes P0171 & P0174 - 2004 Seville
  7. Oil filter
  8. Used Northstar powertrains-FS
  9. production codes
  10. radiator cooling in cold temps
  11. Can anyone identify this?
  12. 2005 Northstar Knock on Start Up
  13. Swap engine from 2006-2007 into 2000 DTS ?
  14. 1994 Concours - head gasket replacement ?
  15. p0154/0151
  16. Engine cover removal
  17. Northstar Overheating Problem- Is it possible to live with or even avoid...?
  18. oops ruined a couple studs by accident
  19. Looking for a cartridge style rear main seal installer
  20. need a new motor!
  21. cataclean info
  22. Northstar Performance SLOW!!!!!!!!!!!!!!
  23. CODES of past ,present,future?
  24. CKP & OP Sensors AND Oil Filter Adapter Sealing, Servicing - Candidate 4 Sticky
  25. 1998 Eldorado failed HG
  26. need a little advice on what im looking at
  27. 97 Concours won't start now
  28. 1997 ETC engine performance upgrades
  29. 2006-2009 DTS Common Problems
  30. Engine randomly stalls when it rains and ran into another problem
  31. Pre-'05 4T80E Torque Converter Upgrade from viscous silicone to '05-later EC3?
  32. Looking for Northstar experts in or around Atlanta, GA
  33. Northstar water pump 2006-2011
  34. STP High mileage oil additive.
  35. Re: 2000+ Northstar Plenum Replacement steps
  36. NO oil war just info on dexos,please
  37. The Stumbling, The Codes and The Solution
  38. Engine knock after rebuild 2005 northstar
  39. 01 STS - Head Gasket - Perm or Temp/Quick Fix Solution
  40. Main Cap Bolt broken in block, UGHH.
  41. location of starter
  42. 1995 STS starter questions and seeking advice
  43. dog bones life span
  44. Engine parts cleaning during overhaul
  45. 2000 STS Northstar coolant problems
  46. Transaxle leaking
  47. Northstar head gasket problem
  48. 2000 Deville Code P0741 & P1860
  49. Motor Mounts
  50. Just bought a 99 Deville - question about the oil
  51. Buyer beware
  52. HOW TO: Change surge tank (and coolant) on a 96 VIN Y DeVille
  53. tapping sound
  54. hard shifting
  55. hard start, hi reving cadillac after storage
  56. oil leak. water pump camshaft
  57. 1998 caddy STS fixed wp pulleys & belt. More issues!!!
  58. Northstar - any thoughts or advice ????
  59. More big props to joe
  60. Plenum Issue??? AIR system issue ???
  61. 1999 Deville PCM codes - can you tune it?
  62. Overheating Northstars and bleeder valves
  63. How do you find tdc on cylinder #1 using timing marks?
  64. Cadillac Deville 2000 plugs and boots
  65. 2000 STS code 9 swapping to 2001 Y code engine
  66. 1996 STS - P1406 DTC with bucking and hesitation
  67. Quick and Dirty 97 Deville HG Job
  68. Check engine light won't go away???
  69. How do I drain ALL the coolant?
  70. High Mileage engine oil question
  71. Northstar Head/Engine removal
  72. A question for the more experienced N* gear-heads on site. Gasket or rings?
  73. Torque Spec for ARP Studs in Northstar
  74. Unusual noises or am I crazy?
  75. Exhaust parts needed
  76. CF chips
  77. Oil percentage - OLM information
  78. False Overheating?
  79. Issues Removing Crank Pulley
  80. Having HG problems and ordered NORTHSTAR PERFORMANCE studs...
  81. help with removing engine from 97 deville
  82. Oil Drain plug seized...can you use an air impact to remove without damage?
  83. 97 Deville Won't Start
  84. 2003 STS Idle/MAF/Coolant temp issues/Driving itself
  85. smokey the bandit!
  86. Engine misfire at certain times of the day - 2003 STS
  87. Can I use regular torque numbers on my cylinder heads?
  88. Concerns with my 1997 Northstar Engine
  89. 99 Deville Concours with cracked block!
  90. heater tube connection leak
  91. How To Remove Heater Core Hoses ? - 1997 Deville
  92. Northstar rev limiter
  93. New Owner 93 Eldorado pic. ? about HG issues in the early Northstars
  94. Is this the worst rusty engine you have seen?
  95. small coolant drip where sensor mounts
  96. Best way to flush cooling system
  97. For those that wish to "plug in & play"....late 90's N* crate engine
  98. 4.0 Northstar Performance Upgrade
  99. Seeking N* help in VA.....
  100. 98 Deville D'Elegance Stays At 222 F
  101. 1998 Eldorado - DexCool mix
  102. Size of hose used to connect heater line tubing
  103. 99DeVille_NrthSt*r's Project Thread
  104. 97 Deville Concours - Rough Starting
  105. Top pullers, I need help with a bolt
  106. 99 DeVille Electrical Harness
  107. Northstar Performance - Cylinder Head Studs. Stock Issues Resolved.
  108. 96 deville crossover gasket
  109. The best sealant for the oil pan gasket
  110. Vacuum Leak after WOT (P0101) - 2003 STS
  111. Does anyone know a good Cadillac mechanic in the NYC area
  112. Great deal on Rear Main Seal installer... but better hurry!
  113. Head Gasket Kit Verification
  114. Is it worth it?
  115. Results of coolant in oil
  116. 2000 Deville shakes at Idle, No DTC's
  117. Engine block cracked - Northstar Performance, where are you ?
  118. Cradle swapping possibilities
  119. Non Production VVT Northstar
  120. Jake Northstar Performance - stud problems
  121. Update on remanufactured Northstar Performance engine. 1 year later
  122. Head Gasket Questions
  123. Another overheating northstar....
  124. Northstar interesting stuff....
  125. '00 Deville sat for year. Coolant, Battery, Misfire, Brake fluid problems HELP
  126. Northstar Water Pump Housing Replacment
  127. my 1995 Cadillac Eldorado Overheating
  128. Seafoam - do you use it?
  129. Another N* Oil Pump question
  130. 2005 DTS Head gasket still a problem?
  131. Gforce performance "chip" ?
  132. SureGrip studded Eldo for sale?!!
  133. I'm relocating,,,,new complaints section....
  134. Remote key fob
  135. oil manifold question
  136. How do you clean ring grooves on pistons?
  137. Video. For those who want to see CNC machining in action.
  138. Plugs - Spark plugs for a Northstar ??
  139. Want To Buy N* stud tool kit
  140. What happened? Stored 1996 Deville engine knock
  141. Northstar head gasket repair
  142. WOT problem and P0300 - 2000 Eldorado
  143. Marks Turbocharged 99 STS
  144. water pump leak after replacing pump/seal
  145. Missing shield in cam cover?
  146. tight northstar cam chain
  147. front motor mounts
  148. northstar studs
  149. 2000 Deville - high pitched whistle
  150. 99 Deville HG job 4-2012
  151. I have a set of studs available if someone needs them thanks to my previous thread
  152. DIY Northstar Head Gasket / Crankcase Leak Repair
  153. 1997 Seville temperature problems
  154. Don't Wait More Than 120 days
  155. How to tell if head gaskets have been done before?
  156. Need top compression ring 98 N*....ugghhh
  157. 18mm Northstar Crankbolt needed
  158. 98 Eldorado replacing Engine Torque Mounts
  159. Troubleshooting help
  160. New Northstar Crate Engine
  161. Valve stem seal tool?
  162. Code P070 with stalling and surging-TPS or ISC?
  163. Huge thanks to Joe at Midwest Cadillac Repair
  164. Factory air intake question
  165. Bent pushrod - valvetrain noise ?
  166. '01 DTS Misfire.
  167. Thread size for Jake's studs?
  168. Drive Train Hum & No Overdrive
  169. Towing in third gear
  170. 2004 Deville PCM
  171. 01 Deville OverHeating Issue
  172. Please help diagnose my cooling system problem
  173. Overheating
  174. Is there an alternate way to lock the flywheel?
  175. northstar stud kit
  176. What engines are compatible with 2000 seville sts.... Coil to spark plug type.....
  177. Coolant Reservoir Overflow Line
  178. N* Upper to Lower block half sealing procedure.
  179. To re-seal or not?
  180. How do you SAFELY clean the valve covers?
  181. 98 ETC Head Gasket project started today...
  182. 2002 Eldorado ETC Head Gasket Project
  183. 97 N* Crank Pulley / Oil Pump Torque setting
  184. WP cam price
  185. 2001 Deville VIN Y - head gasket repair on Long Island ?
  186. Anyone want to compare MAF readings?
  187. Wheres Jake? We need studs and engines !!!
  188. serp belt
  189. Question about the Northstar PCM
  190. 96 Sedan De Ville V8 Northstar Over Heating
  191. po 300, po 507 need help asap!!
  192. 1997 STS N* connecting rod stamped number
  193. Is there an on-line breakdown of N* engine parts with GM part numbers?
  194. Torque specs on fasteners - torque angle?
  195. Northstar headbolt spacing/ pattern
  196. 95 eldorado 8th letter of vin is y
  197. Recently purchaced 2003 Cadillac Dev
  198. engine swap for a 2000 dts to a 2003 devell can it work i
  199. Jake, I REALLY, REALLY want to give you some money!
  200. Saga of a naive Head Gasket repair
  201. Cracked block!!!!
  202. What causes a headgasket failure?
  203. Spark advance/knock - What is tolerance?
  204. Towing with 02 Deville
  205. Northstar Temp sensor & Lock up converter ?'s
  206. P119 and p080
  207. Another (slightly different) Northstar oil consumption question.....
  208. holley injector harness
  209. Northstar oil pump failure
  210. 4.6 Rod Clearance
  211. Determining Headbolt Thread Pitch
  212. Thank You
  213. Scratched Wall
  214. 4T80E Electronically controlled torque converter clutch
  215. Do The 2006 and newer DTS Northstars have the same headgasket issues?
  216. Feels like a miss?
  217. Need some advice for Northstar car purchase...
  218. need help with rough running northstsar
  219. '03 DeVille - Slight shudder under initial acceleration
  220. how can i check if head gasket leaks
  221. 1994 Deville Concours Ignition Control Module Replacement
  222. Get it while you can..........
  223. Backfiring issues
  224. Rear main seal install tool confusion
  225. surges/sputters while driving, but idles perfectly fine?
  226. Code P041 and Code P025 in 1994 Deville Concours
  227. Northstar 4.6 Overheating
  228. Differences of studs vs. Timeserts
  229. 94 deville concours northstar catalytic converter redhot and stalls
  230. dipstick level, which side to believe?
  231. 2002 Eldorado coolant flush what kind?
  232. Heated Seat Issue..Please Help!
  233. Running on 4 Cylinders..not in Overheat mode
  234. 2002 Deville, White Smoke when Ideling
  235. 1999 Deville w/ Northstar coolant issue
  236. Another 2000+ head gasket failure
  237. 01 Deville DHS N* Repair in DFW Metroplex
  238. SureGrip stud kit / jig combo allignment?
  239. How hard to try to pull the head bolts on Northstar?
  240. How do I pull the airbox in my Eldo?
  241. 2000 Deville Crank Sensor Problems.. Please help if you can..
  242. ethanol or not
  243. Areas to look at while doing a HG repair
  244. PCM/EBTCM Pin Diagram, 2001 SLS
  245. Jake, wish you best of Luck !!
  246. What wire for the Speedo?
  247. Time sert kit kit # 500
  248. Torque Converter Whine
  249. PCM and engine switching
  250. 4T80E Viscous Torque Converter Internals / Clutch Failure (Lots of pictures included)