: Northstar Engines and System Technical Discussion



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