: Northstar Engines and System Technical Discussion



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