: Northstar Engines and System Technical Discussion



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