: Northstar Engines and System Technical Discussion



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  1. more electrical gremlins
  2. No fuel pressure
  3. Photos of the CNC turning center-
  4. 98 STS White smoke on accelation
  5. Should I have my brand new, never fired 4.0 long-block studded?
  6. Found my coolant leak
  7. Oil pump seal/oring
  8. Looking for a SPECIFIC N* Removal Guide
  9. Remote start and push button ignition
  10. Consequences of driving with failed HG
  11. How to space piston rings
  12. Cam journal caps broke
  13. Should I replace PCM? Need 2nd & 3rd opinions
  14. New owner of 1997 Eldorado, many questions
  15. N* To pull or not to pull, A/C is the question.
  16. 2002 Deville; Installing Vin Y Engine Into Vin 9 Car
  17. Northstar PCM Tuning
  18. Cross over gaskets ?
  19. Smells like exhaust in antifreeze again............... ?
  20. Disabling air injection system in 2002 engine?
  21. Couple of problems with my 94 Seville.
  22. 1994 cadillac seville Spark plug change
  23. Bad head gaskets or user error?
  24. northstar pre-trip opinion
  25. Source for engine internal parts?
  26. First post: Anyone know if the RWD and AWD wire harnesses are the same for 04-05 STS?
  27. If Engine has been Studed can you Remove the heads and put the heads back with in car
  28. So where is my oil level sensor?
  29. Curious. . .crankshaft position sensors, are they reversable?
  30. Bad mileage
  31. Taking Pre-Orders for bottom end stud kits-
  32. Any good Northstar shops near Maryland?
  33. Have code P071 & P046
  34. Cost of DIY Headgaskets/studs?
  35. Ceramic coated exhaust manifolds?
  36. What is the timeline for Head Gasket failure
  37. Where are the parts for this build?
  38. MAF Housing R&R
  39. ticking tapping noise in engine video attached
  40. Interesting find........
  41. proper torque-to-yield on 99 sts
  42. Northstar 4.6 bottom end
  43. 1996 ETC Code nightmares p13
  44. 2000 STS Half-case seal gasket P/N
  45. Looks like an early factory "new" create engine
  46. Northstar Shake
  47. 5/16 course Head Bolts?
  48. Time sert removal
  49. tcc solenoid
  50. Just got exhaust work done and now I'm getting some codes... Advice? 2002 DTS
  51. Question regarding slight motor mount/tranny thump
  52. 85 Northstar head gasket jobs completed 85 Cadillacs saved!
  53. Looking for a shop in GA that uses Studs for HG repair
  54. Help with Tune Up Northstar 4.6
  55. Disassembling my first N*
  56. bad ground the route of all evil ??
  57. Mysterious loss of coolant / 7000 miles without a problem since new studs & gaskets..
  58. Engine swap question
  59. New Guy to Northstar and their General Maintaince
  60. Torque Converter Shaft
  61. Painting engine cover and valve cover/s
  62. 1996 Cadillac Seville SLS - Replacing water pump belt HELP!
  63. Still getting Missfire-New AC Delco Plugs and new coil packs
  64. Removing exhaust down pipe on 99 Seville
  65. 94 Cadillac Seville SLS flooding out real bad
  66. New Member engine overheating problem...
  67. Oil Pressure...
  68. Pretty sure I have a fuel leak somewhere under the hood
  69. Engine Coolant Temperature Gauges / Cooling Fans Operation Explained
  70. Oil, cams, Northstars, and ZDDP
  71. New member, 1st caddy- low coolant level warning
  72. 2000 SLS engine oddity
  73. 4.0 rebuild
  74. Northstar swap transmission please help
  75. Best method of cleaning
  76. Crank Bolt Removal and free block/tranny
  77. Time Sert Kit Needed.
  78. I’m not Convinced it the Head Gaskets again?
  79. Code question?
  80. Out the top! First time....
  81. cam swap to 4.0l
  82. Timesert Failure
  83. Looking for a GOOD shop in/near MASS for engine install.
  84. HG For Me Too!
  85. Northstar A/C
  86. ECU TROUBLE! IMPORTANT! How to fix or replace cut wires to ecu?
  87. Northstar in a 65 Corsa
  88. crank position sensor relearn
  89. I really need help OBD TROUBLE CODES 96 STS
  90. 2007 DTS Engine noise at start up help
  91. 02 Northstar in 99 sys basically complete
  92. Other Northstar Vehicles (LD8)
  93. Noticeable drop in power in warm weather
  94. norms insert alignment kit for sale
  95. 99 STS stumbles, P1370a, P1371a, P1377a codes; At wits end with this car
  96. 2000 cadillac sts completely stumped, tried everything and new to fourm.
  97. 2006 DTS Intermittent Leakage Causing Battery to go Dead Overnight
  98. new guy with 99 eldorado etc
  99. Anyone need a Stud Kit?
  100. Question about stud kit install?
  101. Timing question
  102. 94 eldo cooling problem
  103. Rear main (probable) seal leaking... talk to "Northstar performance" or no?
  104. Convert from Dex-Cool to green antifreeze
  105. Cracked Blocks. CKP swap to 00+ blocks?
  106. '96 STS starting trouble & heat only on right side
  107. how to replace a1994 sls map sensor, code p032
  108. Can anyone comment on the differences in '06 to '10 Vin Y (LD8) engines from '05
  109. 2002 Northstar security
  110. EMERGENCY! I have an interview tomorrow and my Car (2000 Eldo) is down!
  111. 2002 4t80e tranny
  112. Internal Engine Questions!
  113. Trouble communicating with Northstar Performance.
  114. It's been asked before, but more specifically.ACD 41-OEM Sparkplugs vs Denso Iridium
  115. Who has done the Most head gasket jobs on N's
  116. New supplier for a high performance exhaust crossover pipe
  117. Who has used studs from Northstar Performance ?
  118. Northstar XV12 engine
  119. Message to all stud kit customers, past, present, and future.
  120. Lower crankcase reseal questions
  121. Best Reasonably Priced Socket Tools?
  122. 2000 Eldo front cam cover gasket replacement
  123. P1599 - Engine Stall or Near Stall Detected
  124. No longer a Cadillac owner :-(
  125. PVC valve,where are you?
  126. Replaced head gaskets and northstar performance studs with egine in car
  127. Problem solved!
  128. Greetings all, Newby here. Got a '94 Eldo Northstar w/ zero problems and...
  129. new spark plugs and radio static
  130. Northstar removal guide - feedback wanted
  131. Crankcase half leak?
  132. 05 Northstar Timing Chain Failure?
  133. another shop pulling a scam?
  134. MAF SENSOR ISSUE 2000 Cadillac Seville SLS
  135. spark plugs
  136. Is it just me or does it seem like there are a lot more bad head gaskets, esp 2000+
  137. ignition switch keeps blowing on 02 deville
  138. idle vibration and no other codes/symptoms
  139. fuel pump info please
  140. 95 seville smokes tons at idle after sitting for a year
  141. Tapping Noise
  142. Coolant temp sensor
  143. 2002 Deville Mechanics are stumped
  144. white/blue smoke
  145. Fel-Pro or OEM gaskets?
  146. change to synthetic to help oil consumption?
  147. Steel of a deal?
  148. 94 top intake cover bolts- which side up
  149. 2002 Deville completely died at 80 mph
  150. pulsating engine and trans kickdown too high
  151. P0101 and P0741 -2000 Deville
  152. Cam shaft code 99 deville ongoing project with hg repair
  153. Blown Head Gasket 00 Deville
  154. God Bless America - stud kits to ship from new USA location
  155. Any differences between N* in 98 Deville and 98 Seville?
  156. 98 Deville HG failure
  157. Minimum idle speed adjustment on 1996 throttle body
  158. My NorthStar Head Stud installation picture
  159. bad idle and shuts off
  160. Question on Northstar small cover bolts, what size wrench?
  161. 2002 Cadillac DeVille and engine skip
  162. dropping Northstar
  163. Scan Tools For The DIY
  164. engine form 97 into 99?
  165. 94 4.6 Water Pump Housing question
  166. Northstar Performance - 24 hour head gasket repair & bottom end re-seal
  167. 1998 Deville, Both Cooling Fans fail to turn on when commanded with TECH II
  168. 1998 Deville Waterpump housing cover gasket is it reall a dealer only item
  169. Radiator Flush 02 deville
  170. Cannot remove spark plugs
  171. Crankshaft Sensors
  172. Crankshaft sensor?
  173. Fixed - Map sensors keep failing on 94 NorthStar
  174. Which motor mount is this?
  175. Stalls when stopping/stopped
  176. Help!!
  177. ♠ The never had a headgasket problem club…
  178. Cam Cover Colors
  179. P0410 and P0418 on 2005 Bonneville GXP
  180. Spark plug replacment
  181. 94 STS Acceleration issue
  182. EGR or IAC problem on -95 Eldo
  183. Northstar Headgasket Leak/Headbolts......Northstar Performance Bolts
  184. Sticky gas pedal
  185. Cannonball Run Sept 3/2011
  186. Would my baby make it?
  187. GM's response to ZDDP reduction in oil
  188. 1998 Cadillac STS overheating
  189. steel sleeve/block
  190. water pump cover gasket
  191. p0300
  192. New owner of a 98 Eldorado and need some advice
  193. Sub: The wikipedia of Cadillacs
  194. water pump cover leak
  195. headgasket thickness?!
  196. Garage sale
  197. Jake's studs make me happy in the pants.
  198. Any Previously tuned 2000 to 2003 PCM have lifetime tune upgrade
  199. 98 deville concour... correct spark plug gap
  200. Introduction and a little desperate for a fix
  201. 1998 Northstar throttle sticking.
  202. Coolant System Questions 1996 Cadillac Deville
  203. 98 seville sts white smoke
  204. Note to all stud kit customers, effective immediately pricing and policy changes.
  205. 2000 Deville Misfire
  206. Northstar Blown Head gasket problem
  207. Frequency of HG Failure by Age & Miles
  208. why is over filling bad ?
  209. Removing front valve covers from 99 STS engine in car.
  210. Catalytic Converter operating temp specs
  211. For those of you who've successfully rebuilt a northstar engine. . .
  212. cold carbon rap
  213. Note from grampa
  214. Jake i hope you are still here and have not left Thank you Jake for all you do
  215. when i get the heater core replaced to i stay Dex or go green
  216. Swapping PCM
  217. 99 STS running cold (yes cold!!)
  218. Denso Products
  219. '98 DeVille Northstar dies while coasting.
  220. 2000 seville SLS engine removal
  221. 94 Northstar Ecm options
  222. 400 Northstar Headgasket repairs completed
  223. 4.6 northstar injector information
  224. '99 STS with 16k miles, go for it or no?
  225. Bad MPG is freezing weather
  226. The dreaded weekly P0741 engine code & a fix
  227. Northstar Making a Loud Noise - Need Help!
  228. 99 STS Project
  229. Dead starter?
  230. looking for mechanic who does Time sert
  231. Northstar Engine Swap
  232. codes
  233. 2001 Northstar - Head Gaskets blown or not?? I'm stumped!!
  234. About to pull engine for head gaskets, mods and other repairs while engine is out
  235. Sea foaming l37
  236. Olds Aurora Hesitating
  237. Does anyone know how the steering wheel position sensor works?
  238. Delco has new oil filter design
  239. need an northstar engine block ,northstar performance?
  240. Best Economical Way to Get A Car to Jake in Canada
  241. Well, yard engine and tranny installed and took it on a test drive for a hundred mile
  242. Doing HG 1997 STS: questions!
  243. What would it take to mount this on an Eldorado?
  244. Why me? Two Northstars with failed head bolts/gaskets
  245. 96 Deville high idle.
  246. hard cold starting
  247. Wonders if I could run drano thru my heater core to unclog? Lol
  248. Modified Olds Aurora. Merry Christmas everyone!
  249. Torque converter.
  250. anyone here done the ring cleaning procedure?