: Northstar Engines and System Technical Discussion



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  1. Intermediate Timing Chain Gear fit
  2. Fuel pressure jumping up and down on my 1998 Eldorado
  3. Mystery klanking sound.. over 200K N*
  4. GUZZLING GAS!!! 2000 Deville...
  5. 96 Northstar Build
  6. Misfire - 2001 Deville
  7. To fix the Blown Head Gasket, how hard is it if DIY?
  8. Help-Broke Oil Pressure Switch wires while replaceing CKP's 03 Deville
  9. Piston detonation evidence - 1998 Northstar
  10. Coolant crossover
  11. Northstar V8 and 4T80E questions
  12. 2002 SLS Code P 0401
  13. DTS oil level and change oil soon messages
  14. Rough Idle After Retiming.
  15. Yet another oil question - mix SAE 30 with 10W-30 ?
  16. No acceleration... 2000 Deville
  17. Northstar Manual Transmission Possibility?
  18. Idling Trouble for 2004 Deville
  19. Timing chain issue, not lining up? stretched chain possibly?
  20. Rough idle/shuddering and misfires...2004 SRX Northstar
  21. Northstar oil flow diagram - oil in a head bolt hole
  22. Coolant Temperature Problem
  23. SES Light - codes P0171 & P0174 - 2004 Seville
  24. Oil filter
  25. Used Northstar powertrains-FS
  26. production codes
  27. radiator cooling in cold temps
  28. Can anyone identify this?
  29. 2005 Northstar Knock on Start Up
  30. Swap engine from 2006-2007 into 2000 DTS ?
  31. 1994 Concours - head gasket replacement ?
  32. p0154/0151
  33. Engine cover removal
  34. Northstar Overheating Problem- Is it possible to live with or even avoid...?
  35. oops ruined a couple studs by accident
  36. Looking for a cartridge style rear main seal installer
  37. need a new motor!
  38. cataclean info
  39. Northstar Performance SLOW!!!!!!!!!!!!!!
  40. CODES of past ,present,future?
  41. CKP & OP Sensors AND Oil Filter Adapter Sealing, Servicing - Candidate 4 Sticky
  42. 1998 Eldorado failed HG
  43. need a little advice on what im looking at
  44. 97 Concours won't start now
  45. 1997 ETC engine performance upgrades
  46. 2006-2009 DTS Common Problems
  47. Engine randomly stalls when it rains and ran into another problem
  48. Pre-'05 4T80E Torque Converter Upgrade from viscous silicone to '05-later EC3?
  49. Looking for Northstar experts in or around Atlanta, GA
  50. Northstar water pump 2006-2011
  51. STP High mileage oil additive.
  52. Re: 2000+ Northstar Plenum Replacement steps
  53. NO oil war just info on dexos,please
  54. The Stumbling, The Codes and The Solution
  55. Engine knock after rebuild 2005 northstar
  56. 01 STS - Head Gasket - Perm or Temp/Quick Fix Solution
  57. Main Cap Bolt broken in block, UGHH.
  58. location of starter
  59. 1995 STS starter questions and seeking advice
  60. dog bones life span
  61. Engine parts cleaning during overhaul
  62. 2000 STS Northstar coolant problems
  63. Transaxle leaking
  64. Northstar head gasket problem
  65. 2000 Deville Code P0741 & P1860
  66. Motor Mounts
  67. Just bought a 99 Deville - question about the oil
  68. Buyer beware
  69. HOW TO: Change surge tank (and coolant) on a 96 VIN Y DeVille
  70. tapping sound
  71. hard shifting
  72. hard start, hi reving cadillac after storage
  73. oil leak. water pump camshaft
  74. 1998 caddy STS fixed wp pulleys & belt. More issues!!!
  75. Northstar - any thoughts or advice ????
  76. More big props to joe
  77. Plenum Issue??? AIR system issue ???
  78. 1999 Deville PCM codes - can you tune it?
  79. Overheating Northstars and bleeder valves
  80. How do you find tdc on cylinder #1 using timing marks?
  81. Cadillac Deville 2000 plugs and boots
  82. 2000 STS code 9 swapping to 2001 Y code engine
  83. 1996 STS - P1406 DTC with bucking and hesitation
  84. Quick and Dirty 97 Deville HG Job
  85. Check engine light won't go away???
  86. How do I drain ALL the coolant?
  87. High Mileage engine oil question
  88. Northstar Head/Engine removal
  89. A question for the more experienced N* gear-heads on site. Gasket or rings?
  90. Torque Spec for ARP Studs in Northstar
  91. Unusual noises or am I crazy?
  92. Exhaust parts needed
  93. CF chips
  94. Oil percentage - OLM information
  95. False Overheating?
  96. Issues Removing Crank Pulley
  97. Having HG problems and ordered NORTHSTAR PERFORMANCE studs...
  98. help with removing engine from 97 deville
  99. Oil Drain plug seized...can you use an air impact to remove without damage?
  100. 97 Deville Won't Start
  101. 2003 STS Idle/MAF/Coolant temp issues/Driving itself
  102. smokey the bandit!
  103. Engine misfire at certain times of the day - 2003 STS
  104. Can I use regular torque numbers on my cylinder heads?
  105. Concerns with my 1997 Northstar Engine
  106. 99 Deville Concours with cracked block!
  107. heater tube connection leak
  108. How To Remove Heater Core Hoses ? - 1997 Deville
  109. Northstar rev limiter
  110. New Owner 93 Eldorado pic. ? about HG issues in the early Northstars
  111. Is this the worst rusty engine you have seen?
  112. small coolant drip where sensor mounts
  113. Best way to flush cooling system
  114. For those that wish to "plug in & play"....late 90's N* crate engine
  115. 4.0 Northstar Performance Upgrade
  116. Seeking N* help in VA.....
  117. 98 Deville D'Elegance Stays At 222 F
  118. 1998 Eldorado - DexCool mix
  119. Size of hose used to connect heater line tubing
  120. 99DeVille_NrthSt*r's Project Thread
  121. 97 Deville Concours - Rough Starting
  122. Top pullers, I need help with a bolt
  123. 99 DeVille Electrical Harness
  124. Northstar Performance - Cylinder Head Studs. Stock Issues Resolved.
  125. 96 deville crossover gasket
  126. The best sealant for the oil pan gasket
  127. Vacuum Leak after WOT (P0101) - 2003 STS
  128. Does anyone know a good Cadillac mechanic in the NYC area
  129. Great deal on Rear Main Seal installer... but better hurry!
  130. Head Gasket Kit Verification
  131. Is it worth it?
  132. Results of coolant in oil
  133. 2000 Deville shakes at Idle, No DTC's
  134. Engine block cracked - Northstar Performance, where are you ?
  135. Cradle swapping possibilities
  136. Non Production VVT Northstar
  137. Jake Northstar Performance - stud problems
  138. Update on remanufactured Northstar Performance engine. 1 year later
  139. Head Gasket Questions
  140. Another overheating northstar....
  141. Northstar interesting stuff....
  142. '00 Deville sat for year. Coolant, Battery, Misfire, Brake fluid problems HELP
  143. Northstar Water Pump Housing Replacment
  144. my 1995 Cadillac Eldorado Overheating
  145. Seafoam - do you use it?
  146. Another N* Oil Pump question
  147. 2005 DTS Head gasket still a problem?
  148. Gforce performance "chip" ?
  149. SureGrip studded Eldo for sale?!!
  150. I'm relocating,,,,new complaints section....
  151. Remote key fob
  152. oil manifold question
  153. How do you clean ring grooves on pistons?
  154. Video. For those who want to see CNC machining in action.
  155. Plugs - Spark plugs for a Northstar ??
  156. Want To Buy N* stud tool kit
  157. What happened? Stored 1996 Deville engine knock
  158. Northstar head gasket repair
  159. WOT problem and P0300 - 2000 Eldorado
  160. Marks Turbocharged 99 STS
  161. water pump leak after replacing pump/seal
  162. Missing shield in cam cover?
  163. tight northstar cam chain
  164. front motor mounts
  165. northstar studs
  166. 2000 Deville - high pitched whistle
  167. 99 Deville HG job 4-2012
  168. I have a set of studs available if someone needs them thanks to my previous thread
  169. DIY Northstar Head Gasket / Crankcase Leak Repair
  170. 1997 Seville temperature problems
  171. Don't Wait More Than 120 days
  172. How to tell if head gaskets have been done before?
  173. Need top compression ring 98 N*....ugghhh
  174. 18mm Northstar Crankbolt needed
  175. 98 Eldorado replacing Engine Torque Mounts
  176. Troubleshooting help
  177. New Northstar Crate Engine
  178. Valve stem seal tool?
  179. Code P070 with stalling and surging-TPS or ISC?
  180. Huge thanks to Joe at Midwest Cadillac Repair
  181. Factory air intake question
  182. Bent pushrod - valvetrain noise ?
  183. '01 DTS Misfire.
  184. Thread size for Jake's studs?
  185. Drive Train Hum & No Overdrive
  186. Towing in third gear
  187. 2004 Deville PCM
  188. 01 Deville OverHeating Issue
  189. Please help diagnose my cooling system problem
  190. Overheating
  191. Is there an alternate way to lock the flywheel?
  192. northstar stud kit
  193. What engines are compatible with 2000 seville sts.... Coil to spark plug type.....
  194. Coolant Reservoir Overflow Line
  195. N* Upper to Lower block half sealing procedure.
  196. To re-seal or not?
  197. How do you SAFELY clean the valve covers?
  198. 98 ETC Head Gasket project started today...
  199. 2002 Eldorado ETC Head Gasket Project
  200. 97 N* Crank Pulley / Oil Pump Torque setting
  201. WP cam price
  202. 2001 Deville VIN Y - head gasket repair on Long Island ?
  203. Anyone want to compare MAF readings?
  204. Wheres Jake? We need studs and engines !!!
  205. serp belt
  206. Question about the Northstar PCM
  207. 96 Sedan De Ville V8 Northstar Over Heating
  208. po 300, po 507 need help asap!!
  209. 1997 STS N* connecting rod stamped number
  210. Is there an on-line breakdown of N* engine parts with GM part numbers?
  211. Torque specs on fasteners - torque angle?
  212. Northstar headbolt spacing/ pattern
  213. 95 eldorado 8th letter of vin is y
  214. Recently purchaced 2003 Cadillac Dev
  215. engine swap for a 2000 dts to a 2003 devell can it work i
  216. Jake, I REALLY, REALLY want to give you some money!
  217. Saga of a naive Head Gasket repair
  218. Cracked block!!!!
  219. What causes a headgasket failure?
  220. Spark advance/knock - What is tolerance?
  221. Towing with 02 Deville
  222. Northstar Temp sensor & Lock up converter ?'s
  223. P119 and p080
  224. Another (slightly different) Northstar oil consumption question.....
  225. holley injector harness
  226. Northstar oil pump failure
  227. 4.6 Rod Clearance
  228. Thank You
  229. Scratched Wall
  230. 4T80E Electronically controlled torque converter clutch
  231. Do The 2006 and newer DTS Northstars have the same headgasket issues?
  232. Feels like a miss?
  233. Need some advice for Northstar car purchase...
  234. need help with rough running northstsar
  235. '03 DeVille - Slight shudder under initial acceleration
  236. how can i check if head gasket leaks
  237. 1994 Deville Concours Ignition Control Module Replacement
  238. Get it while you can..........
  239. Backfiring issues
  240. Rear main seal install tool confusion
  241. surges/sputters while driving, but idles perfectly fine?
  242. Code P041 and Code P025 in 1994 Deville Concours
  243. Northstar 4.6 Overheating
  244. Differences of studs vs. Timeserts
  245. 94 deville concours northstar catalytic converter redhot and stalls
  246. dipstick level, which side to believe?
  247. 2002 Eldorado coolant flush what kind?
  248. Heated Seat Issue..Please Help!
  249. Running on 4 Cylinders..not in Overheat mode
  250. 2002 Deville, White Smoke when Ideling