: Northstar Engines and System Technical Discussion



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  1. Shops that specilize in head gasket repair.
  2. oil loadup at idle
  3. EGR Cleaning - '97 ETC
  4. engine over heating..
  5. Cleared PCM codes - now emissions test not ready
  6. Madtuner.com
  7. N* 4.6 Bad Compression, Help Please
  8. Best Replacement Mount For 2000 Deville
  9. Do not stud a Northstar
  10. Drilling and Tapping The Northstar V8......my personal experience so far.
  11. Northstar TB upgrade
  12. 2002 Deville Transaxle
  13. clogged heater core
  14. 2000 Deville Base - Front Ground Wire
  15. fuel injectors,1993 4.6 northstar VIn Y
  16. Chips
  17. my STS...its a miracle!
  18. How to clean out fuel system in a 96 Eldorado sitting for 6 years.
  19. low oil pressure-'97 SLS
  20. Northstar exhaust
  21. Update on parts I have/had
  22. Northstar Smoke On Startup
  23. O5 DeVille Is That My Lifters I Hear????
  24. 2006 4.6 northstar performance upgrades
  25. 1995 SLS questions on codes
  26. Recommend Pro Mar in NJ for a Northstar Rebuild. :)
  27. Replacing a Northstar in my 2003 Seville...what should I check for?
  28. HELP! 1999 SLS Coolant leak
  29. 2008 DTS misfire issue
  30. P 0300 code 2005 DTS - can't find the miss
  31. .030" over head gasket?
  32. 4.6L 32 valve water in oil
  33. P 0306 code
  34. 2000 DHS - cooling system problems
  35. 1990 DeVille idles rough
  36. 1997 STS - hard start, backfire when cranking
  37. Tappets or Rocker Followers - Two Different Head Designs???
  38. 2004 0r 2006 ?
  39. Change cat?
  40. Changing the Serpentine belt on a VIN Y Northstar V8
  41. 2006 Northstar 4.6 overheating
  42. 2002 STS Bottom end repaired early on.........questions
  43. 2002 DTS Northstar questions
  44. Northstar Water Pump Mounting Changes - Year?
  45. 94 SLS feels like its going to stall when at stoplight
  46. 2000 DTS - Overheating Issues
  47. 2001 Northstar piston to rod orientation?
  48. Should I clean my EGR valve also replace air pump
  49. Best transmission for a Northstar to LaSalle Street Rod swap
  50. Would these chain tensioners cause excessive engine noise?
  51. Rebuilt 4.6 from Davis Auto Repair or Cadillac Doctor
  52. Real bad oil leak!
  53. P0719how much coukd this code cost me
  54. Drink coasters from engine cover emblems.
  55. Strange compression test results, oil inside intake manifold & smoke !!
  56. Bore heads for larger headbolts or stud/insert ?
  57. Diffrence from 2000 and 2006 northstar engine?
  58. Exxon valdez
  59. 97 ETC Head Gasket Project
  60. 1998 Deville Northstar - ready to get my hands dirty
  61. Northstar V-8 Engine - Gasoline Issue
  62. Engine shaking
  63. Piston pin
  64. Northstar cam timing and chain problem
  65. Small Oil Leak and Smell in 2000 Cadillac Deville
  66. Are 2001 y code transmissions AAN and VAN interchangeable?
  67. Crank question
  68. Where Does This Bracket Go??
  69. LD8 non-interference motor?
  70. Losing Compression
  71. where is thermostat
  72. Issues with code P 0411 - 2006 DTS
  73. 96 Deville won't idle down, hard start and backfires when cold
  74. 99 DeVille D'elegance
  75. Northstar build
  76. Intermediate Timing Chain Gear fit
  77. Fuel pressure jumping up and down on my 1998 Eldorado
  78. Mystery klanking sound.. over 200K N*
  79. GUZZLING GAS!!! 2000 Deville...
  80. 96 Northstar Build
  81. Misfire - 2001 Deville
  82. To fix the Blown Head Gasket, how hard is it if DIY?
  83. Help-Broke Oil Pressure Switch wires while replaceing CKP's 03 Deville
  84. Piston detonation evidence - 1998 Northstar
  85. Coolant crossover
  86. Northstar V8 and 4T80E questions
  87. 2002 SLS Code P 0401
  88. DTS oil level and change oil soon messages
  89. Rough Idle After Retiming.
  90. Yet another oil question - mix SAE 30 with 10W-30 ?
  91. No acceleration... 2000 Deville
  92. Northstar Manual Transmission Possibility?
  93. Idling Trouble for 2004 Deville
  94. Timing chain issue, not lining up? stretched chain possibly?
  95. Rough idle/shuddering and misfires...2004 SRX Northstar
  96. Northstar oil flow diagram - oil in a head bolt hole
  97. Coolant Temperature Problem
  98. SES Light - codes P0171 & P0174 - 2004 Seville
  99. Oil filter
  100. Used Northstar powertrains-FS
  101. production codes
  102. radiator cooling in cold temps
  103. Can anyone identify this?
  104. 2005 Northstar Knock on Start Up
  105. Swap engine from 2006-2007 into 2000 DTS ?
  106. 1994 Concours - head gasket replacement ?
  107. p0154/0151
  108. Engine cover removal
  109. Northstar Overheating Problem- Is it possible to live with or even avoid...?
  110. oops ruined a couple studs by accident
  111. Looking for a cartridge style rear main seal installer
  112. need a new motor!
  113. cataclean info
  114. Northstar Performance SLOW!!!!!!!!!!!!!!
  115. CODES of past ,present,future?
  116. CKP & OP Sensors AND Oil Filter Adapter Sealing, Servicing - Candidate 4 Sticky
  117. 1998 Eldorado failed HG
  118. need a little advice on what im looking at
  119. 97 Concours won't start now
  120. 1997 ETC engine performance upgrades
  121. 2006-2009 DTS Common Problems
  122. Engine randomly stalls when it rains and ran into another problem
  123. Pre-'05 4T80E Torque Converter Upgrade from viscous silicone to '05-later EC3?
  124. Looking for Northstar experts in or around Atlanta, GA
  125. Northstar water pump 2006-2011
  126. STP High mileage oil additive.
  127. Re: 2000+ Northstar Plenum Replacement steps
  128. NO oil war just info on dexos,please
  129. The Stumbling, The Codes and The Solution
  130. Engine knock after rebuild 2005 northstar
  131. 01 STS - Head Gasket - Perm or Temp/Quick Fix Solution
  132. Main Cap Bolt broken in block, UGHH.
  133. location of starter
  134. 1995 STS starter questions and seeking advice
  135. dog bones life span
  136. Engine parts cleaning during overhaul
  137. 2000 STS Northstar coolant problems
  138. Transaxle leaking
  139. Northstar head gasket problem
  140. 2000 Deville Code P0741 & P1860
  141. Motor Mounts
  142. Just bought a 99 Deville - question about the oil
  143. Buyer beware
  144. HOW TO: Change surge tank (and coolant) on a 96 VIN Y DeVille
  145. tapping sound
  146. hard shifting
  147. hard start, hi reving cadillac after storage
  148. oil leak. water pump camshaft
  149. 1998 caddy STS fixed wp pulleys & belt. More issues!!!
  150. Northstar - any thoughts or advice ????
  151. More big props to joe
  152. Plenum Issue??? AIR system issue ???
  153. 1999 Deville PCM codes - can you tune it?
  154. Overheating Northstars and bleeder valves
  155. How do you find tdc on cylinder #1 using timing marks?
  156. Cadillac Deville 2000 plugs and boots
  157. 2000 STS code 9 swapping to 2001 Y code engine
  158. 1996 STS - P1406 DTC with bucking and hesitation
  159. Quick and Dirty 97 Deville HG Job
  160. Check engine light won't go away???
  161. How do I drain ALL the coolant?
  162. High Mileage engine oil question
  163. Northstar Head/Engine removal
  164. A question for the more experienced N* gear-heads on site. Gasket or rings?
  165. Torque Spec for ARP Studs in Northstar
  166. Unusual noises or am I crazy?
  167. Exhaust parts needed
  168. CF chips
  169. Oil percentage - OLM information
  170. False Overheating?
  171. Issues Removing Crank Pulley
  172. Having HG problems and ordered NORTHSTAR PERFORMANCE studs...
  173. help with removing engine from 97 deville
  174. Oil Drain plug seized...can you use an air impact to remove without damage?
  175. 97 Deville Won't Start
  176. 2003 STS Idle/MAF/Coolant temp issues/Driving itself
  177. smokey the bandit!
  178. Engine misfire at certain times of the day - 2003 STS
  179. Can I use regular torque numbers on my cylinder heads?
  180. Concerns with my 1997 Northstar Engine
  181. 99 Deville Concours with cracked block!
  182. heater tube connection leak
  183. How To Remove Heater Core Hoses ? - 1997 Deville
  184. Northstar rev limiter
  185. New Owner 93 Eldorado pic. ? about HG issues in the early Northstars
  186. Is this the worst rusty engine you have seen?
  187. small coolant drip where sensor mounts
  188. Best way to flush cooling system
  189. For those that wish to "plug in & play"....late 90's N* crate engine
  190. 4.0 Northstar Performance Upgrade
  191. Seeking N* help in VA.....
  192. 98 Deville D'Elegance Stays At 222 F
  193. 1998 Eldorado - DexCool mix
  194. Size of hose used to connect heater line tubing
  195. 99DeVille_NrthSt*r's Project Thread
  196. 97 Deville Concours - Rough Starting
  197. Top pullers, I need help with a bolt
  198. 99 DeVille Electrical Harness
  199. Northstar Performance - Cylinder Head Studs. Stock Issues Resolved.
  200. 96 deville crossover gasket
  201. The best sealant for the oil pan gasket
  202. Vacuum Leak after WOT (P0101) - 2003 STS
  203. Does anyone know a good Cadillac mechanic in the NYC area
  204. Great deal on Rear Main Seal installer... but better hurry!
  205. Head Gasket Kit Verification
  206. Is it worth it?
  207. Results of coolant in oil
  208. 2000 Deville shakes at Idle, No DTC's
  209. Engine block cracked - Northstar Performance, where are you ?
  210. Cradle swapping possibilities
  211. Non Production VVT Northstar
  212. Jake Northstar Performance - stud problems
  213. Update on remanufactured Northstar Performance engine. 1 year later
  214. Head Gasket Questions
  215. Another overheating northstar....
  216. Northstar interesting stuff....
  217. '00 Deville sat for year. Coolant, Battery, Misfire, Brake fluid problems HELP
  218. Northstar Water Pump Housing Replacment
  219. my 1995 Cadillac Eldorado Overheating
  220. Seafoam - do you use it?
  221. Another N* Oil Pump question
  222. 2005 DTS Head gasket still a problem?
  223. Gforce performance "chip" ?
  224. SureGrip studded Eldo for sale?!!
  225. I'm relocating,,,,new complaints section....
  226. Remote key fob
  227. oil manifold question
  228. How do you clean ring grooves on pistons?
  229. Video. For those who want to see CNC machining in action.
  230. Plugs - Spark plugs for a Northstar ??
  231. Want To Buy N* stud tool kit
  232. What happened? Stored 1996 Deville engine knock
  233. Northstar head gasket repair
  234. WOT problem and P0300 - 2000 Eldorado
  235. Marks Turbocharged 99 STS
  236. water pump leak after replacing pump/seal
  237. Missing shield in cam cover?
  238. tight northstar cam chain
  239. front motor mounts
  240. northstar studs
  241. 2000 Deville - high pitched whistle
  242. 99 Deville HG job 4-2012
  243. I have a set of studs available if someone needs them thanks to my previous thread
  244. DIY Northstar Head Gasket / Crankcase Leak Repair
  245. 1997 Seville temperature problems
  246. Don't Wait More Than 120 days
  247. How to tell if head gaskets have been done before?
  248. Need top compression ring 98 N*....ugghhh
  249. 18mm Northstar Crankbolt needed
  250. 98 Eldorado replacing Engine Torque Mounts