: Northstar Engines and System Technical Discussion



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