: Northstar Engines and System Technical Discussion



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