: Northstar Engines and System Technical Discussion



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  1. A few codes to clear up (02 Deville)
  2. Northstar Camshaft Wear - Common? Cause?
  3. My 98 Deville N* HG repair adventure !!
  4. northstar engine several issues--need major help
  5. Water pump removal
  6. Northstar coolant leak
  7. More Northstar repair services......ENJOY
  8. Shell Rimula R6 ME 5W30
  9. Camshaft pulley removal
  10. P0300 Code goes off at high rpm.
  11. Turbo'ed 98-04 STS N*
  12. 99' cadillac head gasket problems
  13. Fuel Injector resistance 1994 Northstar motor
  14. Northstar Main Studs-
  15. $575 99 Seville project Car overheating
  16. My Little Northstar engine Project
  17. Trans question p0748 after trans repaired by rebuilder
  18. 1994 Deville Concours PCM Replacement
  19. 94 Deville Concours PCM Codes P041 and P119
  20. Misfire Cylender 4 Low Compresion after flashing SES and p0300
  21. prospective owner with HG question
  22. tcc solenoid need help asap
  23. egr blockoff
  24. 01 eldorado ESC "hard" starting and once wouldn't start
  25. Shelby 1 Olds Supercharged Aurora - How About LS9 or LSA?
  26. Direct Injection - Technology Question
  27. Bought the '97 etc replacement
  28. Advice from some repair guys on cleaning processes
  29. 94 STS head gasket question
  30. Doesn't seem to be the head gasket but still overheats
  31. Looking for HG Repair Shop in Southeast US
  32. evap solonoid
  33. Ebay: Brand new Vortech Supercharged Aurora 4.0 engine
  34. 1995 elder northstar cooling
  35. how to change camshaft position sensor on 1997 sts
  36. Not happy with Federal Mogul's quality levels anymore. Specifically Fel-Pro.
  37. 1994 SLS Northstar running rich and stalling
  38. Front seal is leaking
  39. Thorttle body problem and code p2135
  40. Ignition drop-outs
  41. L37, ld8, l47 & lx5
  42. My 98 Deville with straight pipes... what do you guys think?
  43. hg repairs
  44. Wierd Temperature spikes 02 deville
  45. There was a thread or sticky that was all about engine oild and dino or conventional
  46. Oil pump prime
  47. Motor Mount project
  48. Hello Everyone, I need help with getting an engine......
  49. P0304 Misfire cylinder 4
  50. N* picky about motor oil?
  51. Timing chain seems loose on a 4.6L Deville.
  52. 99 deville fans just stop both of them
  53. Replacing a TPS in a 99 Deville?
  54. 2000 Deville Idle Relearn
  55. Polishing Cam lobes?
  56. Northstar Tuneup
  57. Felpro intake manifold gaskets
  58. PCM Codes P0171 and P0174
  59. 100 Cadillac head gasket repairs completed
  60. NorthStar Engine Block Crack Have you had one What year and how did it crack
  61. 4.6 N* Crank shaft / oil pump question
  62. hard starting 1997 sts
  63. air in coolant system?
  64. more electrical gremlins
  65. No fuel pressure
  66. Photos of the CNC turning center-
  67. 98 STS White smoke on accelation
  68. Should I have my brand new, never fired 4.0 long-block studded?
  69. Found my coolant leak
  70. Oil pump seal/oring
  71. Looking for a SPECIFIC N* Removal Guide
  72. Remote start and push button ignition
  73. Consequences of driving with failed HG
  74. How to space piston rings
  75. Cam journal caps broke
  76. Should I replace PCM? Need 2nd & 3rd opinions
  77. New owner of 1997 Eldorado, many questions
  78. N* To pull or not to pull, A/C is the question.
  79. 2002 Deville; Installing Vin Y Engine Into Vin 9 Car
  80. Northstar PCM Tuning
  81. Cross over gaskets ?
  82. Smells like exhaust in antifreeze again............... ?
  83. Disabling air injection system in 2002 engine?
  84. Couple of problems with my 94 Seville.
  85. 1994 cadillac seville Spark plug change
  86. Bad head gaskets or user error?
  87. northstar pre-trip opinion
  88. Source for engine internal parts?
  89. First post: Anyone know if the RWD and AWD wire harnesses are the same for 04-05 STS?
  90. If Engine has been Studed can you Remove the heads and put the heads back with in car
  91. So where is my oil level sensor?
  92. Curious. . .crankshaft position sensors, are they reversable?
  93. Bad mileage
  94. Taking Pre-Orders for bottom end stud kits-
  95. Any good Northstar shops near Maryland?
  96. Have code P071 & P046
  97. Cost of DIY Headgaskets/studs?
  98. Ceramic coated exhaust manifolds?
  99. What is the timeline for Head Gasket failure
  100. Where are the parts for this build?
  101. MAF Housing R&R
  102. ticking tapping noise in engine video attached
  103. Interesting find........
  104. proper torque-to-yield on 99 sts
  105. Northstar 4.6 bottom end
  106. 1996 ETC Code nightmares p13
  107. 2000 STS Half-case seal gasket P/N
  108. Looks like an early factory "new" create engine
  109. Northstar Shake
  110. 5/16 course Head Bolts?
  111. Time sert removal
  112. tcc solenoid
  113. Just got exhaust work done and now I'm getting some codes... Advice? 2002 DTS
  114. Question regarding slight motor mount/tranny thump
  115. 85 Northstar head gasket jobs completed 85 Cadillacs saved!
  116. Looking for a shop in GA that uses Studs for HG repair
  117. Help with Tune Up Northstar 4.6
  118. Disassembling my first N*
  119. bad ground the route of all evil ??
  120. Mysterious loss of coolant / 7000 miles without a problem since new studs & gaskets..
  121. Engine swap question
  122. New Guy to Northstar and their General Maintaince
  123. Torque Converter Shaft
  124. Painting engine cover and valve cover/s
  125. 1996 Cadillac Seville SLS - Replacing water pump belt HELP!
  126. Still getting Missfire-New AC Delco Plugs and new coil packs
  127. Removing exhaust down pipe on 99 Seville
  128. 94 Cadillac Seville SLS flooding out real bad
  129. New Member engine overheating problem...
  130. Oil Pressure...
  131. Pretty sure I have a fuel leak somewhere under the hood
  132. Engine Coolant Temperature Gauges / Cooling Fans Operation Explained
  133. Oil, cams, Northstars, and ZDDP
  134. New member, 1st caddy- low coolant level warning
  135. 2000 SLS engine oddity
  136. 4.0 rebuild
  137. Northstar swap transmission please help
  138. Best method of cleaning
  139. Crank Bolt Removal and free block/tranny
  140. Time Sert Kit Needed.
  141. I’m not Convinced it the Head Gaskets again?
  142. Code question?
  143. Out the top! First time....
  144. cam swap to 4.0l
  145. Timesert Failure
  146. Looking for a GOOD shop in/near MASS for engine install.
  147. HG For Me Too!
  148. Northstar A/C
  149. ECU TROUBLE! IMPORTANT! How to fix or replace cut wires to ecu?
  150. Northstar in a 65 Corsa
  151. crank position sensor relearn
  152. I really need help OBD TROUBLE CODES 96 STS
  153. 2007 DTS Engine noise at start up help
  154. 02 Northstar in 99 sys basically complete
  155. Other Northstar Vehicles (LD8)
  156. Noticeable drop in power in warm weather
  157. norms insert alignment kit for sale
  158. 99 STS stumbles, P1370a, P1371a, P1377a codes; At wits end with this car
  159. 2000 cadillac sts completely stumped, tried everything and new to fourm.
  160. 2006 DTS Intermittent Leakage Causing Battery to go Dead Overnight
  161. new guy with 99 eldorado etc
  162. Anyone need a Stud Kit?
  163. Question about stud kit install?
  164. Timing question
  165. 94 eldo cooling problem
  166. Rear main (probable) seal leaking... talk to "Northstar performance" or no?
  167. Convert from Dex-Cool to green antifreeze
  168. Cracked Blocks. CKP swap to 00+ blocks?
  169. '96 STS starting trouble & heat only on right side
  170. how to replace a1994 sls map sensor, code p032
  171. Can anyone comment on the differences in '06 to '10 Vin Y (LD8) engines from '05
  172. 2002 Northstar security
  173. EMERGENCY! I have an interview tomorrow and my Car (2000 Eldo) is down!
  174. 2002 4t80e tranny
  175. Internal Engine Questions!
  176. Trouble communicating with Northstar Performance.
  177. It's been asked before, but more specifically.ACD 41-OEM Sparkplugs vs Denso Iridium
  178. Who has done the Most head gasket jobs on N's
  179. New supplier for a high performance exhaust crossover pipe
  180. Who has used studs from Northstar Performance ?
  181. Northstar XV12 engine
  182. Message to all stud kit customers, past, present, and future.
  183. Lower crankcase reseal questions
  184. Best Reasonably Priced Socket Tools?
  185. 2000 Eldo front cam cover gasket replacement
  186. P1599 - Engine Stall or Near Stall Detected
  187. No longer a Cadillac owner :-(
  188. PVC valve,where are you?
  189. Replaced head gaskets and northstar performance studs with egine in car
  190. Problem solved!
  191. Greetings all, Newby here. Got a '94 Eldo Northstar w/ zero problems and...
  192. new spark plugs and radio static
  193. Northstar removal guide - feedback wanted
  194. Crankcase half leak?
  195. 05 Northstar Timing Chain Failure?
  196. another shop pulling a scam?
  197. MAF SENSOR ISSUE 2000 Cadillac Seville SLS
  198. spark plugs
  199. Is it just me or does it seem like there are a lot more bad head gaskets, esp 2000+
  200. ignition switch keeps blowing on 02 deville
  201. idle vibration and no other codes/symptoms
  202. fuel pump info please
  203. 95 seville smokes tons at idle after sitting for a year
  204. Tapping Noise
  205. Coolant temp sensor
  206. 2002 Deville Mechanics are stumped
  207. white/blue smoke
  208. Fel-Pro or OEM gaskets?
  209. change to synthetic to help oil consumption?
  210. Steel of a deal?
  211. 94 top intake cover bolts- which side up
  212. 2002 Deville completely died at 80 mph
  213. pulsating engine and trans kickdown too high
  214. P0101 and P0741 -2000 Deville
  215. Cam shaft code 99 deville ongoing project with hg repair
  216. Blown Head Gasket 00 Deville
  217. God Bless America - stud kits to ship from new USA location
  218. Any differences between N* in 98 Deville and 98 Seville?
  219. 98 Deville HG failure
  220. Minimum idle speed adjustment on 1996 throttle body
  221. My NorthStar Head Stud installation picture
  222. bad idle and shuts off
  223. Question on Northstar small cover bolts, what size wrench?
  224. 2002 Cadillac DeVille and engine skip
  225. dropping Northstar
  226. Scan Tools For The DIY
  227. engine form 97 into 99?
  228. 94 4.6 Water Pump Housing question
  229. Northstar Performance - 24 hour head gasket repair & bottom end re-seal
  230. 1998 Deville, Both Cooling Fans fail to turn on when commanded with TECH II
  231. 1998 Deville Waterpump housing cover gasket is it reall a dealer only item
  232. Radiator Flush 02 deville
  233. Cannot remove spark plugs
  234. Crankshaft Sensors
  235. Crankshaft sensor?
  236. Fixed - Map sensors keep failing on 94 NorthStar
  237. Which motor mount is this?
  238. Stalls when stopping/stopped
  239. Help!!
  240. ♠ The never had a headgasket problem club…
  241. Cam Cover Colors
  242. P0410 and P0418 on 2005 Bonneville GXP
  243. Spark plug replacment
  244. 94 STS Acceleration issue
  245. EGR or IAC problem on -95 Eldo
  246. Northstar Headgasket Leak/Headbolts......Northstar Performance Bolts
  247. Sticky gas pedal
  248. Cannonball Run Sept 3/2011
  249. Would my baby make it?
  250. GM's response to ZDDP reduction in oil