: Northstar Engines and System Technical Discussion



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