: Northstar Engines and System Technical Discussion



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  1. Finished Replacement Front Engine Mount
  2. Studs officially shipping from the USA - thanks to JoeTahoe
  3. what to check when buying a northstar?
  4. Can I run 40W or 50w OIL on my NORTHSTAR 4.6? I live in very HOT WEATHER
  5. How to check for Hydrolock?
  6. 1999 Deville smokes at idle
  7. 2002 Deville - Knock sensor ?
  8. 96 Deville - Misfire on #8
  9. MAP sensor location critical ?
  10. 93-94 Northstar Water Pump Tensioner
  11. Please post recommended Northstar Repair Shops in Florida
  12. Cradle won't drop on 98 STS
  13. Replaced old radiator due to crack, overheats with new radiator.. PLEASE HELP
  14. 4 Bad Headgaskets
  15. What is involved in swapping a 93 Edo vin9 with a 95 viny (is it doable) ?????
  16. Swap Nightmare
  17. 2000 Deville possible overheat
  18. EVAP code P 0442
  19. Deville Northtar engine swap and PCM problems
  20. 04 Deville - engine upgrades
  21. 2001 Deville: Won't stay running while in drive
  22. Nortstar engine removal.
  23. Engine overheat and oil in coolant - 2001 STS
  24. What do you like about your Northstar powered vehicle?
  25. Is it possible to remove the cams and keep the timing chain tensioner in place?
  26. Low coolant sensor
  27. 1999 STS leaking coolant
  28. My story: HG headgasket failure
  29. LH2 Swap - Issue starting
  30. Oil/coolant mixing
  31. Throttle Position Sensor relearn ??
  32. 2000 & up Seville air intake resonator
  33. 2001 Seville engine overhaul questions
  34. 2000 Deville Fuel Pressure Specs
  35. 2002 Deville rough idle
  36. 99 eldorado 02 sensors
  37. Oil Pressure Sending Unit - SRX
  38. P0308 #8 Misfire issue... Replaced a lot, still have issue
  39. 99 STS hard cold start. No codes, fpr tests ok and fuel is 44 psi running
  40. A method to remove Crankshaft bolt without locking the flywheel or using the starter.
  41. 2002 Deville AIR pump Vacuum line Routing
  42. 1999 Deville Headgasket - head job or total overhaul ?
  43. 2001 deville engine making kocking noise
  44. 2002 Deville Overheating after Thermostat replacement
  45. Water pump drive pulley
  46. Special tool for Northstar water pump drive pulley
  47. Reliability of 2005 and beyond Northstar-powered cars
  48. Harmonic Balancer Torque
  49. Need advice on who to do a Northstar head job in the Huntsville Alabama area
  50. NGK Spark plugs & coolant level message - 2003 Deville
  51. Get a Free set of Main Studs with Purchase of Sure Grip Cylinder Head Stud Kit
  52. Developed an engine whine... what is it?
  53. Please help with PCM issue on 1993 Allante
  54. limp mode..now misfire
  55. Water cooled alternator - what years/models ?
  56. O2 Sensors in a Hot Rod Set-up
  57. 2002 Northstar WOT, performance brakes, CORSA ?
  58. 1996 and later Northstar performance chips
  59. Magnaflows on a 2003 Deville
  60. socket down camshaft drive chain slot
  61. coolant drip middle front lower
  62. 2005 STS Camshaft Sensor Location? V8 4.6 engine
  63. Pcm issue or camshaft issue any help
  64. Rail / Injector Leak Deville 99
  65. Northstar chips, cold air intakes, and spark plugs
  66. coil on plug ignition modules
  67. Mystery Check Engine Light
  68. Only starts with starting fluid-Help
  69. 99 STS head gasket repair [ in car]
  70. Problem with 97 Eldorado. P 0300...
  71. 02 Cooling building back pressure. Purge line clear.
  72. 1998 STS coolant change
  73. Mystery Black Wire
  74. Oil pressure
  75. 98 deville, uses oil? but how
  76. What year is my Northstar motor, and what cars will it drop into?
  77. trouble with spark from coil packs
  78. Replace and Reprogram PCM 2001 DTS
  79. 1995 SLS - Poor idle quality
  80. Oil Pan Gasket and Permatex UltraGray placement
  81. 98 Deville, changing the coolant, sealant tabs?
  82. 2000 Deville Water Pump will Not Come Out
  83. Fuel pressure regulator
  84. 2003 Deville - exhaust steaming and coolant loss
  85. Can't remove Water Pump Drive pulley.. ever seen one that is stuck?
  86. Best Rear Main Seal Fix?
  87. Critique my coolant flush method
  88. Oil pressure light - 1998 Deville Northstar
  89. 1994 Eldorado thermostat replacement and coolant leak
  90. EGR Tubing
  91. '02 Seville was running fine, now it's not ?
  92. flex tube exhaust
  93. 01 Northstar Water in oil, high oil use, misses when cold.
  94. Coolant Leak Source? (pictures)
  95. When to reseal case halves?
  96. Look what I found in my engine!
  97. Puzzling Clattering Noise During Warm Startups
  98. HG's vs Pulled Threads
  99. Cat problems?
  100. Oil leaks on 1998 ElDorado
  101. 2000+ Intake Manifold on 1998 Northstar
  102. 2001 Deville - coolant boiling in reservoir
  103. Problem with my 1994 Eldorado engine - smoking
  104. code P 0171, P 0174 - solved
  105. Unable to communicate with the console cluster
  106. North Star Engine Disappointment (copy)
  107. SJ - API oil
  108. 97 ETC exhaust manifold fasterners.
  109. Fix the engine, (HG), replace the engine?
  110. Where does this go...?
  111. PCV Valve Elbow?
  112. Pics of my oil leaks
  113. combustion leak tester
  114. Anyone used Lucas Engine Stop Leak?
  115. Water pump issue, mostly? 1994 STS
  116. 98 Deville Water Pump Fail After Serpentine Belt Replaced
  117. Water Pump - Failing When Hot
  118. Oil Pan Leak?
  119. 2002 Deville misfire on Northstar
  120. I'm gonna do a block test today
  121. Car keeps overheating
  122. Service fuel system
  123. radiator cap # ?
  124. Northstar Loan-A-Tool Program, USA shipping on stud kits
  125. EGR Major Issues..help!
  126. 2000 Deville surging?
  127. 1998 STS crankshaft position sensors location
  128. Deville engine swaps and differences
  129. Water pump won't break
  130. New business pratices and standards coming into effect Apr 15/2014
  131. AIR pump on '99
  132. 1995 STS - multiple crank cold starts
  133. Pre-diagnosing HG issues?
  134. eldo running hot
  135. Which alternator? 94 Deville Concours
  136. My 1994 Deville 4.9 is starting to show some signs.
  137. 1999 deville - replaced water pump - running hot
  138. 2009 Buick Lucerne Headgasket
  139. The American V8 - Anatomy of a Hydrolock
  140. 2005 Deville oil pan seal leak
  141. Vacuum diagram
  142. 1997 STS - Long crank/start times - (Advice / Ideas)
  143. Lower crankcase reseal - 2005 Deville
  144. My sincerest apologies and also thanks -
  145. headbolt inserts
  146. Northstar and carbon cleaning
  147. Running but ............... 2001 Northstar
  148. 2000 DTS - no power
  149. To buy or not to buy.....1998 ESC
  150. 1996 DeVille flex plate replacement
  151. engine oil in intake manifold
  152. 2004 DTS Frustrations... misfires and SES
  153. 2000 SLS powertrain/ cradle removal
  154. 98 deville coolant smell?
  155. 02 N☆ Fuel Pressure
  156. Air intake upgrade - DTS Performance ?
  157. 2007 Engine Knock 4.6 Help
  158. The Caddy lives again - Life after the dreaded head leakage
  159. 1997 Deville - EGR remove & replace
  160. Northstar head bolt hole thread repair options
  161. Northstar Production Numbers 1993-2009
  162. 2000 STS - P 0300 - rough idle
  163. 2003 Seville EGR codes
  164. 2004 DHS - CMP location ?
  165. Mechinical buzzing noise from under hood ( 2002 Deville, 150,000)
  166. Blue devil and Norhtstar:
  167. Stalling issue - slow speeds - 1998 ETC
  168. Damaged throttle cable (1998 Deville)
  169. 2000 DTS - correct replacement engine ?
  170. My experience with the water crossover job
  171. Northstar Swap Question
  172. Interesting Listing........ pre-2000 Northstar and transmission
  173. 2001 Deville oil distribution manifold plate seal leak
  174. 1998 Deville has leak at water crossover (150,000 miles)
  175. 2003 Head Gasket Repair
  176. 2006 Northstar engine problems - Buick Lucerne
  177. Water pump? 1999 STS overheating
  178. Northstar swap into a 1987 Fiero GT - engines and differences
  179. Oil Filter Pre-fill
  180. The InFamous N* Oil Leak - Oil Manifold
  181. Engine miss - 1998 Deville
  182. Priming Northstar after total rebuild
  183. Which Rear Main Seal installer do I need for a 1999 DeVille?
  184. Alt amps too high?
  185. 2003 STS engine seized
  186. Cylinder damage question....extended idling
  187. Anyone use "cadillacheadgasketfix.com" in bellflower, ca. to rebuild their Northstar?
  188. My 2000 Deville is back to life
  189. Melted camshaft water pump drive pulley
  190. 2001 Deville N* Spark plug boots questions
  191. drove over curb in fog 96 cadi died and wont restart
  192. fuel injector removal
  193. 2000 head gasket/ insert differences
  194. Northstar overheating-Repair
  195. Head porting Northstar...
  196. 01 Seville runs rough, 0306 code intermittent
  197. Attention all Northstar engine owners - Carroll Cadillac studs
  198. Questions about pre 00 Northstar oil change and use of additives
  199. Pressure in expansion tank
  200. ran out of gas now my SES light turned on any help
  201. New Northstar Crate Engines
  202. very bad coolant leak
  203. High Idle question
  204. Flowmasters on a 2003 SLS
  205. Simple spark plug question - Northstar "tune up"
  206. Results posted - Christmas Draw - FREE STUD KIT!
  207. 2004 Deville rough idle
  208. 1996 Deville fuel injectors
  209. Cylinder head bolt replacement
  210. Northstar R&D-Bench Test Apparatus
  211. Hello Cadillac/Northstar owners
  212. 1996 Deville...... 4.6 Northstar trouble......lotsa trouble.
  213. P0300 Misfire - My problem and solution + more problems...
  214. Best Engine Mounts - 1993-1994 or the newer?
  215. Blown head gasket repair
  216. occassional stalling problem
  217. 05 Deville
  218. Northstar battery life expectation
  219. 2001 DTS Valve Clearance question
  220. Fuel Pump Longevity/Milage Expectations
  221. Torquing N* head
  222. 96' Northstar cranks, will not start
  223. 01 Deville Cylinder #1 misfire
  224. bucking and kicking
  225. Northstar sitting for 12 years...need new springs?
  226. 2005 Bonneville GXP Northstar jumped time
  227. 2001 ETC Intermittent High Idle
  228. 2001 DTS won't accelerate past 2K rpms after spark plug change
  229. Advice on NorthStar coils - both ignition types
  230. Another Shout Out to Jake!!
  231. Code P 0171 showing - 1999 Deville
  232. 2001 DTS - interference engine 4.6l and timing chain replacement ?
  233. Studded heads update
  234. 1999 STS coolant questions
  235. 2000 STS NS smoking under hood after WOT
  236. Governor in NorthStar V8?
  237. O2 sensor-bank 1 S1
  238. No spark
  239. Please help! 94 SLS water pump cover...
  240. Wherer do these parts go ???
  241. Sudden Increase in Oil Consumption 2003 DHS
  242. Crankshaft pulley wobble
  243. 2001 Deville. Can't start after reinstalling engine
  244. Head gaskets and Time-Serts
  245. Oil pump?
  246. Help find part
  247. Maximum valve lift 04-05 Northstar 4.6
  248. 96' Northstar coolant leak
  249. cooling fan relays
  250. Help - 1993 Eldorado needs new engine