: Northstar Engines and System Technical Discussion



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  1. Cracked block!!!!
  2. What causes a headgasket failure?
  3. Spark advance/knock - What is tolerance?
  4. Towing with 02 Deville
  5. Northstar Temp sensor & Lock up converter ?'s
  6. P119 and p080
  7. Another (slightly different) Northstar oil consumption question.....
  8. holley injector harness
  9. Northstar oil pump failure
  10. 4.6 Rod Clearance
  11. Thank You
  12. Scratched Wall
  13. 4T80E Electronically controlled torque converter clutch
  14. Do The 2006 and newer DTS Northstars have the same headgasket issues?
  15. Feels like a miss?
  16. Need some advice for Northstar car purchase...
  17. need help with rough running northstsar
  18. '03 DeVille - Slight shudder under initial acceleration
  19. how can i check if head gasket leaks
  20. 1994 Deville Concours Ignition Control Module Replacement
  21. Get it while you can..........
  22. Backfiring issues
  23. Rear main seal install tool confusion
  24. surges/sputters while driving, but idles perfectly fine?
  25. Code P041 and Code P025 in 1994 Deville Concours
  26. Northstar 4.6 Overheating
  27. Differences of studs vs. Timeserts
  28. 94 deville concours northstar catalytic converter redhot and stalls
  29. dipstick level, which side to believe?
  30. 2002 Eldorado coolant flush what kind?
  31. Heated Seat Issue..Please Help!
  32. Running on 4 Cylinders..not in Overheat mode
  33. 2002 Deville, White Smoke when Ideling
  34. 1999 Deville w/ Northstar coolant issue
  35. Another 2000+ head gasket failure
  36. 01 Deville DHS N* Repair in DFW Metroplex
  37. SureGrip stud kit / jig combo allignment?
  38. How hard to try to pull the head bolts on Northstar?
  39. How do I pull the airbox in my Eldo?
  40. 2000 Deville Crank Sensor Problems.. Please help if you can..
  41. ethanol or not
  42. Areas to look at while doing a HG repair
  43. PCM/EBTCM Pin Diagram, 2001 SLS
  44. Jake, wish you best of Luck !!
  45. What wire for the Speedo?
  46. Time sert kit kit # 500
  47. Torque Converter Whine
  48. PCM and engine switching
  49. 4T80E Viscous Torque Converter Internals / Clutch Failure (Lots of pictures included)
  50. timeserts
  51. Northstar removal
  52. Blocks, cracks and heat
  53. Please help: 1996 deville hard starting ?
  54. 2000 Deville using oil
  55. 2003 Deville engine start problem
  56. What exactly is a "base model" Deville ?
  57. need to replace flywheel
  58. Service engine light
  59. Possible to run northstar on an engine stand or outside of the car?
  60. Oil leak 2004 DHS could switching to Syn oil at 60k cause a leak or make one worse
  61. A few codes to clear up (02 Deville)
  62. Northstar Camshaft Wear - Common? Cause?
  63. My 98 Deville N* HG repair adventure !!
  64. northstar engine several issues--need major help
  65. Water pump removal
  66. Northstar coolant leak
  67. More Northstar repair services......ENJOY
  68. Shell Rimula R6 ME 5W30
  69. Camshaft pulley removal
  70. P0300 Code goes off at high rpm.
  71. Turbo'ed 98-04 STS N*
  72. 99' cadillac head gasket problems
  73. Fuel Injector resistance 1994 Northstar motor
  74. Northstar Main Studs-
  75. $575 99 Seville project Car overheating
  76. My Little Northstar engine Project
  77. Trans question p0748 after trans repaired by rebuilder
  78. 1994 Deville Concours PCM Replacement
  79. 94 Deville Concours PCM Codes P041 and P119
  80. Misfire Cylender 4 Low Compresion after flashing SES and p0300
  81. prospective owner with HG question
  82. tcc solenoid need help asap
  83. egr blockoff
  84. 01 eldorado ESC "hard" starting and once wouldn't start
  85. Shelby 1 Olds Supercharged Aurora - How About LS9 or LSA?
  86. Direct Injection - Technology Question
  87. Bought the '97 etc replacement
  88. Advice from some repair guys on cleaning processes
  89. 94 STS head gasket question
  90. Doesn't seem to be the head gasket but still overheats
  91. Looking for HG Repair Shop in Southeast US
  92. evap solonoid
  93. Ebay: Brand new Vortech Supercharged Aurora 4.0 engine
  94. 1995 elder northstar cooling
  95. how to change camshaft position sensor on 1997 sts
  96. Not happy with Federal Mogul's quality levels anymore. Specifically Fel-Pro.
  97. 1994 SLS Northstar running rich and stalling
  98. Front seal is leaking
  99. Thorttle body problem and code p2135
  100. Ignition drop-outs
  101. L37, ld8, l47 & lx5
  102. My 98 Deville with straight pipes... what do you guys think?
  103. hg repairs
  104. Wierd Temperature spikes 02 deville
  105. There was a thread or sticky that was all about engine oild and dino or conventional
  106. Oil pump prime
  107. Motor Mount project
  108. Hello Everyone, I need help with getting an engine......
  109. P0304 Misfire cylinder 4
  110. N* picky about motor oil?
  111. Timing chain seems loose on a 4.6L Deville.
  112. 99 deville fans just stop both of them
  113. Replacing a TPS in a 99 Deville?
  114. 2000 Deville Idle Relearn
  115. Polishing Cam lobes?
  116. Northstar Tuneup
  117. Felpro intake manifold gaskets
  118. PCM Codes P0171 and P0174
  119. 100 Cadillac head gasket repairs completed
  120. NorthStar Engine Block Crack Have you had one What year and how did it crack
  121. 4.6 N* Crank shaft / oil pump question
  122. hard starting 1997 sts
  123. air in coolant system?
  124. more electrical gremlins
  125. No fuel pressure
  126. Photos of the CNC turning center-
  127. 98 STS White smoke on accelation
  128. Should I have my brand new, never fired 4.0 long-block studded?
  129. Found my coolant leak
  130. Oil pump seal/oring
  131. Looking for a SPECIFIC N* Removal Guide
  132. Remote start and push button ignition
  133. Consequences of driving with failed HG
  134. How to space piston rings
  135. Cam journal caps broke
  136. Should I replace PCM? Need 2nd & 3rd opinions
  137. New owner of 1997 Eldorado, many questions
  138. N* To pull or not to pull, A/C is the question.
  139. 2002 Deville; Installing Vin Y Engine Into Vin 9 Car
  140. Northstar PCM Tuning
  141. Cross over gaskets ?
  142. Smells like exhaust in antifreeze again............... ?
  143. Disabling air injection system in 2002 engine?
  144. Couple of problems with my 94 Seville.
  145. 1994 cadillac seville Spark plug change
  146. Bad head gaskets or user error?
  147. northstar pre-trip opinion
  148. Source for engine internal parts?
  149. First post: Anyone know if the RWD and AWD wire harnesses are the same for 04-05 STS?
  150. If Engine has been Studed can you Remove the heads and put the heads back with in car
  151. So where is my oil level sensor?
  152. Curious. . .crankshaft position sensors, are they reversable?
  153. Bad mileage
  154. Taking Pre-Orders for bottom end stud kits-
  155. Any good Northstar shops near Maryland?
  156. Have code P071 & P046
  157. Cost of DIY Headgaskets/studs?
  158. Ceramic coated exhaust manifolds?
  159. What is the timeline for Head Gasket failure
  160. Where are the parts for this build?
  161. MAF Housing R&R
  162. ticking tapping noise in engine video attached
  163. Interesting find........
  164. proper torque-to-yield on 99 sts
  165. Northstar 4.6 bottom end
  166. 1996 ETC Code nightmares p13
  167. 2000 STS Half-case seal gasket P/N
  168. Looks like an early factory "new" create engine
  169. Northstar Shake
  170. 5/16 course Head Bolts?
  171. Time sert removal
  172. tcc solenoid
  173. Just got exhaust work done and now I'm getting some codes... Advice? 2002 DTS
  174. Question regarding slight motor mount/tranny thump
  175. 85 Northstar head gasket jobs completed 85 Cadillacs saved!
  176. Looking for a shop in GA that uses Studs for HG repair
  177. Help with Tune Up Northstar 4.6
  178. Disassembling my first N*
  179. bad ground the route of all evil ??
  180. Mysterious loss of coolant / 7000 miles without a problem since new studs & gaskets..
  181. Engine swap question
  182. New Guy to Northstar and their General Maintaince
  183. Torque Converter Shaft
  184. Painting engine cover and valve cover/s
  185. 1996 Cadillac Seville SLS - Replacing water pump belt HELP!
  186. Still getting Missfire-New AC Delco Plugs and new coil packs
  187. Removing exhaust down pipe on 99 Seville
  188. 94 Cadillac Seville SLS flooding out real bad
  189. New Member engine overheating problem...
  190. Oil Pressure...
  191. Pretty sure I have a fuel leak somewhere under the hood
  192. Engine Coolant Temperature Gauges / Cooling Fans Operation Explained
  193. Oil, cams, Northstars, and ZDDP
  194. New member, 1st caddy- low coolant level warning
  195. 2000 SLS engine oddity
  196. 4.0 rebuild
  197. Northstar swap transmission please help
  198. Best method of cleaning
  199. Crank Bolt Removal and free block/tranny
  200. Time Sert Kit Needed.
  201. Iím not Convinced it the Head Gaskets again?
  202. Code question?
  203. Out the top! First time....
  204. cam swap to 4.0l
  205. Timesert Failure
  206. Looking for a GOOD shop in/near MASS for engine install.
  207. HG For Me Too!
  208. Northstar A/C
  209. ECU TROUBLE! IMPORTANT! How to fix or replace cut wires to ecu?
  210. Northstar in a 65 Corsa
  211. crank position sensor relearn
  212. I really need help OBD TROUBLE CODES 96 STS
  213. 2007 DTS Engine noise at start up help
  214. 02 Northstar in 99 sys basically complete
  215. Other Northstar Vehicles (LD8)
  216. Noticeable drop in power in warm weather
  217. norms insert alignment kit for sale
  218. 99 STS stumbles, P1370a, P1371a, P1377a codes; At wits end with this car
  219. 2000 cadillac sts completely stumped, tried everything and new to fourm.
  220. 2006 DTS Intermittent Leakage Causing Battery to go Dead Overnight
  221. new guy with 99 eldorado etc
  222. Anyone need a Stud Kit?
  223. Question about stud kit install?
  224. Timing question
  225. 94 eldo cooling problem
  226. Rear main (probable) seal leaking... talk to "Northstar performance" or no?
  227. Convert from Dex-Cool to green antifreeze
  228. Cracked Blocks. CKP swap to 00+ blocks?
  229. '96 STS starting trouble & heat only on right side
  230. how to replace a1994 sls map sensor, code p032
  231. Can anyone comment on the differences in '06 to '10 Vin Y (LD8) engines from '05
  232. 2002 Northstar security
  233. EMERGENCY! I have an interview tomorrow and my Car (2000 Eldo) is down!
  234. 2002 4t80e tranny
  235. Internal Engine Questions!
  236. Trouble communicating with Northstar Performance.
  237. It's been asked before, but more specifically.ACD 41-OEM Sparkplugs vs Denso Iridium
  238. Who has done the Most head gasket jobs on N's
  239. New supplier for a high performance exhaust crossover pipe
  240. Who has used studs from Northstar Performance ?
  241. Northstar XV12 engine
  242. Message to all stud kit customers, past, present, and future.
  243. Lower crankcase reseal questions
  244. Best Reasonably Priced Socket Tools?
  245. 2000 Eldo front cam cover gasket replacement
  246. P1599 - Engine Stall or Near Stall Detected
  247. No longer a Cadillac owner :-(
  248. PVC valve,where are you?
  249. Replaced head gaskets and northstar performance studs with egine in car
  250. Problem solved!