: Northstar Engines and System Technical Discussion



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  1. Throttle Position Sensor relearn ??
  2. 2000 & up Seville air intake resonator
  3. 2001 Seville engine overhaul questions
  4. 2000 Deville Fuel Pressure Specs
  5. 2002 Deville rough idle
  6. 99 eldorado 02 sensors
  7. Oil Pressure Sending Unit - SRX
  8. P0308 #8 Misfire issue... Replaced a lot, still have issue
  9. 99 STS hard cold start. No codes, fpr tests ok and fuel is 44 psi running
  10. A method to remove Crankshaft bolt without locking the flywheel or using the starter.
  11. 2002 Deville AIR pump Vacuum line Routing
  12. 1999 Deville Headgasket - head job or total overhaul ?
  13. 2001 deville engine making kocking noise
  14. 2002 Deville Overheating after Thermostat replacement
  15. Water pump drive pulley
  16. Special tool for Northstar water pump drive pulley
  17. Reliability of 2005 and beyond Northstar-powered cars
  18. Harmonic Balancer Torque
  19. Need advice on who to do a Northstar head job in the Huntsville Alabama area
  20. NGK Spark plugs & coolant level message - 2003 Deville
  21. Get a Free set of Main Studs with Purchase of Sure Grip Cylinder Head Stud Kit
  22. Developed an engine whine... what is it?
  23. Please help with PCM issue on 1993 Allante
  24. limp mode..now misfire
  25. Water cooled alternator - what years/models ?
  26. O2 Sensors in a Hot Rod Set-up
  27. 2002 Northstar WOT, performance brakes, CORSA ?
  28. 1996 and later Northstar performance chips
  29. Magnaflows on a 2003 Deville
  30. socket down camshaft drive chain slot
  31. coolant drip middle front lower
  32. 2005 STS Camshaft Sensor Location? V8 4.6 engine
  33. Pcm issue or camshaft issue any help
  34. Rail / Injector Leak Deville 99
  35. Northstar chips, cold air intakes, and spark plugs
  36. coil on plug ignition modules
  37. Mystery Check Engine Light
  38. Only starts with starting fluid - '97 SLS
  39. 99 STS head gasket repair [ in car]
  40. Problem with 97 Eldorado. P 0300...
  41. 02 Cooling building back pressure. Purge line clear.
  42. 1998 STS coolant change
  43. Mystery Black Wire
  44. Oil pressure
  45. 98 deville, uses oil? but how
  46. What year is my Northstar motor, and what cars will it drop into?
  47. trouble with spark from coil packs
  48. Replace and Reprogram PCM 2001 DTS
  49. 1995 SLS - Poor idle quality
  50. Oil Pan Gasket and Permatex UltraGray placement
  51. 98 Deville, changing the coolant, sealant tabs?
  52. 2000 series Northstar water pump will not come out
  53. Fuel pressure regulator
  54. 2003 Deville - exhaust steaming and coolant loss
  55. Can't remove Water Pump Drive pulley.. ever seen one that is stuck?
  56. Best Rear Main Seal Fix?
  57. Critique my coolant flush method
  58. Oil pressure light - 1998 Deville Northstar
  59. 1994 Eldorado thermostat replacement and coolant leak
  60. EGR Tubing
  61. '02 Seville was running fine, now it's not ?
  62. flex tube exhaust
  63. 01 Northstar Water in oil, high oil use, misses when cold.
  64. Coolant Leak Source? (pictures)
  65. When to reseal case halves?
  66. Look what I found in my engine!
  67. Puzzling Clattering Noise During Warm Startups
  68. HG's vs Pulled Threads
  69. Cat problems?
  70. Oil leaks on 1998 ElDorado
  71. 2000+ Intake Manifold on 1998 Northstar
  72. 2001 Deville - coolant boiling in reservoir
  73. Problem with my 1994 Eldorado engine - smoking
  74. code P 0171, P 0174 - solved
  75. Unable to communicate with the console cluster
  76. North Star Engine Disappointment (copy)
  77. SJ - API oil
  78. 97 ETC exhaust manifold fasterners.
  79. Fix the engine, (HG), replace the engine?
  80. Where does this go...?
  81. PCV Valve Elbow?
  82. Pics of my oil leaks
  83. combustion leak tester
  84. Anyone used Lucas Engine Stop Leak?
  85. Water pump issue, mostly? 1994 STS
  86. 98 Deville Water Pump Fail After Serpentine Belt Replaced
  87. Water Pump - Failing When Hot
  88. Oil Pan Leak?
  89. 2002 Deville misfire on Northstar
  90. I'm gonna do a block test today
  91. Car keeps overheating
  92. Service fuel system
  93. radiator cap # ?
  94. Northstar Loan-A-Tool Program, USA shipping on stud kits
  95. EGR Major Issues..help!
  96. 2000 Deville surging?
  97. 1998 STS crankshaft position sensors location
  98. Deville engine swaps and differences
  99. Water pump won't break
  100. New business pratices and standards coming into effect Apr 15/2014
  101. AIR pump on '99
  102. 1995 STS - multiple crank cold starts
  103. Pre-diagnosing HG issues?
  104. eldo running hot
  105. Which alternator? 94 Deville Concours
  106. My 1994 Deville 4.9 is starting to show some signs.
  107. 1999 deville - replaced water pump - running hot
  108. 2009 Buick Lucerne Headgasket
  109. The American V8 - Anatomy of a Hydrolock
  110. 2005 Deville oil pan seal leak
  111. Vacuum diagram
  112. 1997 STS - Long crank/start times - (Advice / Ideas)
  113. Lower crankcase reseal - 2005 Deville
  114. My sincerest apologies and also thanks -
  115. headbolt inserts
  116. Northstar and carbon cleaning
  117. Running but ............... 2001 Northstar
  118. 2000 DTS - no power
  119. To buy or not to buy.....1998 ESC
  120. 1996 DeVille flex plate replacement
  121. engine oil in intake manifold
  122. 2004 DTS Frustrations... misfires and SES
  123. 2000 SLS powertrain/ cradle removal
  124. 98 deville coolant smell?
  125. 02 N☆ Fuel Pressure
  126. Air intake upgrade - DTS Performance ?
  127. 2007 Engine Knock 4.6 Help
  128. The Caddy lives again - Life after the dreaded head leakage
  129. 1997 Deville - EGR remove & replace
  130. Northstar head bolt hole thread repair options
  131. Northstar Vehicle Production Numbers 1993-2009
  132. 2000 STS - P 0300 - rough idle
  133. 2003 Seville EGR codes
  134. 2004 DHS - CMP location ?
  135. Mechinical buzzing noise from under hood ( 2002 Deville, 150,000)
  136. Blue devil and Norhtstar:
  137. Stalling issue - slow speeds - 1998 ETC
  138. Damaged throttle cable (1998 Deville)
  139. 2000 DTS - correct replacement engine ?
  140. My experience with the water crossover job
  141. Northstar Swap Question
  142. Interesting Listing........ pre-2000 Northstar and transmission
  143. 2001 Deville oil distribution manifold plate seal leak
  144. 1998 Deville has leak at water crossover (150,000 miles)
  145. 2003 Head Gasket Repair
  146. 2006 Northstar engine problems - Buick Lucerne
  147. Water pump? 1999 STS overheating
  148. Northstar swap into a 1987 Fiero GT - engines and differences
  149. Oil Filter Pre-fill
  150. The InFamous N* Oil Leak - Oil Manifold
  151. Engine miss - 1998 Deville
  152. Priming Northstar after total rebuild
  153. Which Rear Main Seal installer do I need for a 1999 DeVille?
  154. Alt amps too high?
  155. 2003 STS engine seized
  156. Cylinder damage question....extended idling
  157. Anyone use "cadillacheadgasketfix.com" in bellflower, ca. to rebuild their Northstar?
  158. My 2000 Deville is back to life
  159. Melted camshaft water pump drive pulley
  160. 2001 Deville N* Spark plug boots questions
  161. drove over curb in fog 96 cadi died and wont restart
  162. fuel injector removal
  163. 2000 head gasket/ insert differences
  164. Northstar overheating-Repair
  165. Head porting Northstar...
  166. 01 Seville runs rough, 0306 code intermittent
  167. Attention all Northstar engine owners - Carroll Cadillac studs
  168. Questions about pre 00 Northstar oil change and use of additives
  169. Pressure in expansion tank
  170. ran out of gas now my SES light turned on any help
  171. New Northstar Crate Engines
  172. very bad coolant leak
  173. High Idle question
  174. Flowmasters on a 2003 SLS
  175. Simple spark plug question - Northstar "tune up"
  176. Results posted - Christmas Draw - FREE STUD KIT!
  177. 2004 Deville rough idle
  178. 1996 Deville fuel injectors
  179. Cylinder head bolt replacement
  180. Northstar R&D-Bench Test Apparatus
  181. Hello Cadillac/Northstar owners
  182. 1996 Deville...... 4.6 Northstar trouble......lotsa trouble.
  183. P0300 Misfire - My problem and solution + more problems...
  184. Best Engine Mounts - 1993-1994 or the newer?
  185. Blown head gasket repair
  186. occassional stalling problem
  187. 05 Deville
  188. Northstar battery life expectation
  189. 2001 DTS Valve Clearance question
  190. Fuel Pump Longevity/Milage Expectations
  191. Torquing N* head
  192. 96' Northstar cranks, will not start
  193. 01 Deville Cylinder #1 misfire
  194. bucking and kicking
  195. Northstar sitting for 12 years...need new springs?
  196. 2005 Bonneville GXP Northstar jumped time
  197. 2001 ETC Intermittent High Idle
  198. 2001 DTS won't accelerate past 2K rpms after spark plug change
  199. Advice on NorthStar coils - both ignition types
  200. Another Shout Out to Jake!!
  201. Code P 0171 showing - 1999 Deville
  202. 2001 DTS - interference engine 4.6l and timing chain replacement ?
  203. Studded heads update
  204. 1999 STS coolant questions
  205. 2000 STS NS smoking under hood after WOT
  206. Governor in NorthStar V8?
  207. O2 sensor-bank 1 S1
  208. No spark
  209. Please help! 94 SLS water pump cover...
  210. Wherer do these parts go ???
  211. Sudden Increase in Oil Consumption 2003 DHS
  212. Crankshaft pulley wobble
  213. 2001 Deville. Can't start after reinstalling engine
  214. Head gaskets and Time-Serts
  215. Oil pump?
  216. Help find part
  217. Maximum valve lift 04-05 Northstar 4.6
  218. 96' Northstar coolant leak
  219. cooling fan relays
  220. Help - 1993 Eldorado needs new engine
  221. Head Bolt Threads - Bonneville Northstar
  222. DOHC theory, any new information?
  223. Compression Ring Treatment
  224. Where do these go?
  225. New motor to replace the northstar
  226. Northstar Replacement
  227. 2001 Deville hesitates while accelerating
  228. Retirement from the physical repairs to focus on the stud kits-
  229. The Dreaded Northstar Leaking Head Gasket- Fix, Sell or Junk?
  230. Why Leaking Headgaskets
  231. Is it dangerous - cracked flexplate on a Northstar
  232. 2008 STS engin dont swing
  233. fuel pump suddenly stops
  234. Stumble and stall
  235. Valve cover gaskets
  236. On the road again!
  237. 2001 Deville flat or domed pistons
  238. Changing the water pump "Belt?
  239. 1998 STS - Dies at speed and won't restart sometimes.
  240. Is it safe to buy a Northstar now? I can't stop driving Cadillacs!
  241. Northstar size question
  242. Need mechanic - 1994 STS Northstar near Winnipeg
  243. Northstar overheating
  244. Interchangeability of VIN: 9 and VIN: Y transmissions?
  245. Northstar Commander 950 base Map - sand rail install
  246. overheating need help
  247. Just a head gasket failure?
  248. Northstar engine questions from Finland
  249. P 0171 and P 0174 code - 2004 Deville
  250. new generator-->ECM broken