: Northstar Engines and System Technical Discussion



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  1. Question about the Northstar PCM
  2. 96 Sedan De Ville V8 Northstar Over Heating
  3. po 300, po 507 need help asap!!
  4. 1997 STS N* connecting rod stamped number
  5. Is there an on-line breakdown of N* engine parts with GM part numbers?
  6. Torque specs on fasteners - torque angle?
  7. Northstar headbolt spacing/ pattern
  8. 95 eldorado 8th letter of vin is y
  9. Recently purchaced 2003 Cadillac Dev
  10. engine swap for a 2000 dts to a 2003 devell can it work i
  11. Jake, I REALLY, REALLY want to give you some money!
  12. Saga of a naive Head Gasket repair
  13. Cracked block!!!!
  14. What causes a headgasket failure?
  15. Spark advance/knock - What is tolerance?
  16. Towing with 02 Deville
  17. Northstar Temp sensor & Lock up converter ?'s
  18. P119 and p080
  19. Another (slightly different) Northstar oil consumption question.....
  20. holley injector harness
  21. Northstar oil pump failure
  22. 4.6 Rod Clearance
  23. Determining Headbolt Thread Pitch
  24. Thank You
  25. Scratched Wall
  26. 4T80E Electronically controlled torque converter clutch
  27. Do The 2006 and newer DTS Northstars have the same headgasket issues?
  28. Feels like a miss?
  29. Need some advice for Northstar car purchase...
  30. need help with rough running northstsar
  31. '03 DeVille - Slight shudder under initial acceleration
  32. how can i check if head gasket leaks
  33. 1994 Deville Concours Ignition Control Module Replacement
  34. Get it while you can..........
  35. Backfiring issues
  36. Rear main seal install tool confusion
  37. surges/sputters while driving, but idles perfectly fine?
  38. Code P041 and Code P025 in 1994 Deville Concours
  39. Northstar 4.6 Overheating
  40. Differences of studs vs. Timeserts
  41. 94 deville concours northstar catalytic converter redhot and stalls
  42. dipstick level, which side to believe?
  43. 2002 Eldorado coolant flush what kind?
  44. Heated Seat Issue..Please Help!
  45. Running on 4 Cylinders..not in Overheat mode
  46. 2002 Deville, White Smoke when Ideling
  47. 1999 Deville w/ Northstar coolant issue
  48. Another 2000+ head gasket failure
  49. 01 Deville DHS N* Repair in DFW Metroplex
  50. SureGrip stud kit / jig combo allignment?
  51. How hard to try to pull the head bolts on Northstar?
  52. How do I pull the airbox in my Eldo?
  53. 2000 Deville Crank Sensor Problems.. Please help if you can..
  54. ethanol or not
  55. Areas to look at while doing a HG repair
  56. PCM/EBTCM Pin Diagram, 2001 SLS
  57. Jake, wish you best of Luck !!
  58. What wire for the Speedo?
  59. Time sert kit kit # 500
  60. Torque Converter Whine
  61. PCM and engine switching
  62. 4T80E Viscous Torque Converter Internals / Clutch Failure (Lots of pictures included)
  63. timeserts
  64. Northstar removal
  65. Blocks, cracks and heat
  66. Please help: 1996 deville hard starting ?
  67. 2000 Deville using oil
  68. 2003 Deville engine start problem
  69. What exactly is a "base model" Deville ?
  70. need to replace flywheel
  71. Service engine light
  72. Possible to run northstar on an engine stand or outside of the car?
  73. Oil leak 2004 DHS could switching to Syn oil at 60k cause a leak or make one worse
  74. A few codes to clear up (02 Deville)
  75. Northstar Camshaft Wear - Common? Cause?
  76. My 98 Deville N* HG repair adventure !!
  77. northstar engine several issues--need major help
  78. Water pump removal
  79. Northstar coolant leak
  80. More Northstar repair services......ENJOY
  81. Shell Rimula R6 ME 5W30
  82. Camshaft pulley removal
  83. P0300 Code goes off at high rpm.
  84. Turbo'ed 98-04 STS N*
  85. 99' cadillac head gasket problems
  86. Fuel Injector resistance 1994 Northstar motor
  87. Northstar Main Studs-
  88. $575 99 Seville project Car overheating
  89. My Little Northstar engine Project
  90. Trans question p0748 after trans repaired by rebuilder
  91. 1994 Deville Concours PCM Replacement
  92. 94 Deville Concours PCM Codes P041 and P119
  93. Misfire Cylender 4 Low Compresion after flashing SES and p0300
  94. prospective owner with HG question
  95. tcc solenoid need help asap
  96. egr blockoff
  97. 01 eldorado ESC "hard" starting and once wouldn't start
  98. Shelby 1 Olds Supercharged Aurora - How About LS9 or LSA?
  99. Direct Injection - Technology Question
  100. Bought the '97 etc replacement
  101. Advice from some repair guys on cleaning processes
  102. 94 STS head gasket question
  103. Doesn't seem to be the head gasket but still overheats
  104. Looking for HG Repair Shop in Southeast US
  105. evap solonoid
  106. Ebay: Brand new Vortech Supercharged Aurora 4.0 engine
  107. 1995 elder northstar cooling
  108. how to change camshaft position sensor on 1997 sts
  109. Not happy with Federal Mogul's quality levels anymore. Specifically Fel-Pro.
  110. 1994 SLS Northstar running rich and stalling
  111. Front seal is leaking
  112. Thorttle body problem and code p2135
  113. Ignition drop-outs
  114. L37, ld8, l47 & lx5
  115. My 98 Deville with straight pipes... what do you guys think?
  116. hg repairs
  117. Wierd Temperature spikes 02 deville
  118. There was a thread or sticky that was all about engine oild and dino or conventional
  119. Oil pump prime
  120. Motor Mount project
  121. Hello Everyone, I need help with getting an engine......
  122. P0304 Misfire cylinder 4
  123. N* picky about motor oil?
  124. Timing chain seems loose on a 4.6L Deville.
  125. 99 deville fans just stop both of them
  126. Replacing a TPS in a 99 Deville?
  127. 2000 Deville Idle Relearn
  128. Polishing Cam lobes?
  129. Northstar Tuneup
  130. Felpro intake manifold gaskets
  131. PCM Codes P0171 and P0174
  132. 100 Cadillac head gasket repairs completed
  133. NorthStar Engine Block Crack Have you had one What year and how did it crack
  134. 4.6 N* Crank shaft / oil pump question
  135. hard starting 1997 sts
  136. air in coolant system?
  137. more electrical gremlins
  138. No fuel pressure
  139. Photos of the CNC turning center-
  140. 98 STS White smoke on accelation
  141. Should I have my brand new, never fired 4.0 long-block studded?
  142. Found my coolant leak
  143. Oil pump seal/oring
  144. Looking for a SPECIFIC N* Removal Guide
  145. Remote start and push button ignition
  146. Consequences of driving with failed HG
  147. How to space piston rings
  148. Cam journal caps broke
  149. Should I replace PCM? Need 2nd & 3rd opinions
  150. New owner of 1997 Eldorado, many questions
  151. N* To pull or not to pull, A/C is the question.
  152. 2002 Deville; Installing Vin Y Engine Into Vin 9 Car
  153. Northstar PCM Tuning
  154. Cross over gaskets ?
  155. Smells like exhaust in antifreeze again............... ?
  156. Disabling air injection system in 2002 engine?
  157. Couple of problems with my 94 Seville.
  158. 1994 cadillac seville Spark plug change
  159. Bad head gaskets or user error?
  160. northstar pre-trip opinion
  161. Source for engine internal parts?
  162. First post: Anyone know if the RWD and AWD wire harnesses are the same for 04-05 STS?
  163. If Engine has been Studed can you Remove the heads and put the heads back with in car
  164. So where is my oil level sensor?
  165. Curious. . .crankshaft position sensors, are they reversable?
  166. Bad mileage
  167. Taking Pre-Orders for bottom end stud kits-
  168. Any good Northstar shops near Maryland?
  169. Have code P071 & P046
  170. Cost of DIY Headgaskets/studs?
  171. Ceramic coated exhaust manifolds?
  172. What is the timeline for Head Gasket failure
  173. Where are the parts for this build?
  174. MAF Housing R&R
  175. ticking tapping noise in engine video attached
  176. Interesting find........
  177. proper torque-to-yield on 99 sts
  178. Northstar 4.6 bottom end
  179. 1996 ETC Code nightmares p13
  180. 2000 STS Half-case seal gasket P/N
  181. Looks like an early factory "new" create engine
  182. Northstar Shake
  183. 5/16 course Head Bolts?
  184. Time sert removal
  185. tcc solenoid
  186. Just got exhaust work done and now I'm getting some codes... Advice? 2002 DTS
  187. Question regarding slight motor mount/tranny thump
  188. 85 Northstar head gasket jobs completed 85 Cadillacs saved!
  189. Looking for a shop in GA that uses Studs for HG repair
  190. Help with Tune Up Northstar 4.6
  191. Disassembling my first N*
  192. bad ground the route of all evil ??
  193. Mysterious loss of coolant / 7000 miles without a problem since new studs & gaskets..
  194. Engine swap question
  195. New Guy to Northstar and their General Maintaince
  196. Torque Converter Shaft
  197. Painting engine cover and valve cover/s
  198. 1996 Cadillac Seville SLS - Replacing water pump belt HELP!
  199. Still getting Missfire-New AC Delco Plugs and new coil packs
  200. Removing exhaust down pipe on 99 Seville
  201. 94 Cadillac Seville SLS flooding out real bad
  202. New Member engine overheating problem...
  203. Oil Pressure...
  204. Pretty sure I have a fuel leak somewhere under the hood
  205. Engine Coolant Temperature Gauges / Cooling Fans Operation Explained
  206. Oil, cams, Northstars, and ZDDP
  207. New member, 1st caddy- low coolant level warning
  208. 2000 SLS engine oddity
  209. 4.0 rebuild
  210. Northstar swap transmission please help
  211. Best method of cleaning
  212. Crank Bolt Removal and free block/tranny
  213. Time Sert Kit Needed.
  214. Iím not Convinced it the Head Gaskets again?
  215. Code question?
  216. Out the top! First time....
  217. cam swap to 4.0l
  218. Timesert Failure
  219. Looking for a GOOD shop in/near MASS for engine install.
  220. HG For Me Too!
  221. Northstar A/C
  222. ECU TROUBLE! IMPORTANT! How to fix or replace cut wires to ecu?
  223. Northstar in a 65 Corsa
  224. crank position sensor relearn
  225. I really need help OBD TROUBLE CODES 96 STS
  226. 2007 DTS Engine noise at start up help
  227. 02 Northstar in 99 sys basically complete
  228. Other Northstar Vehicles (LD8)
  229. Noticeable drop in power in warm weather
  230. norms insert alignment kit for sale
  231. 99 STS stumbles, P1370a, P1371a, P1377a codes; At wits end with this car
  232. 2000 cadillac sts completely stumped, tried everything and new to fourm.
  233. 2006 DTS Intermittent Leakage Causing Battery to go Dead Overnight
  234. new guy with 99 eldorado etc
  235. Anyone need a Stud Kit?
  236. Question about stud kit install?
  237. Timing question
  238. 94 eldo cooling problem
  239. Rear main (probable) seal leaking... talk to "Northstar performance" or no?
  240. Convert from Dex-Cool to green antifreeze
  241. Cracked Blocks. CKP swap to 00+ blocks?
  242. '96 STS starting trouble & heat only on right side
  243. how to replace a1994 sls map sensor, code p032
  244. Can anyone comment on the differences in '06 to '10 Vin Y (LD8) engines from '05
  245. 2002 Northstar security
  246. EMERGENCY! I have an interview tomorrow and my Car (2000 Eldo) is down!
  247. 2002 4t80e tranny
  248. Internal Engine Questions!
  249. Trouble communicating with Northstar Performance.
  250. It's been asked before, but more specifically.ACD 41-OEM Sparkplugs vs Denso Iridium