: Northstar Engines and System Technical Discussion



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  1. What is the timeline for Head Gasket failure
  2. Where are the parts for this build?
  3. MAF Housing R&R
  4. ticking tapping noise in engine video attached
  5. Interesting find........
  6. proper torque-to-yield on 99 sts
  7. Northstar 4.6 bottom end
  8. 1996 ETC Code nightmares p13
  9. 2000 STS Half-case seal gasket P/N
  10. Looks like an early factory "new" create engine
  11. Northstar Shake
  12. 5/16 course Head Bolts?
  13. Time sert removal
  14. tcc solenoid
  15. Just got exhaust work done and now I'm getting some codes... Advice? 2002 DTS
  16. Question regarding slight motor mount/tranny thump
  17. 85 Northstar head gasket jobs completed 85 Cadillacs saved!
  18. Looking for a shop in GA that uses Studs for HG repair
  19. Help with Tune Up Northstar 4.6
  20. Disassembling my first N*
  21. bad ground the route of all evil ??
  22. Mysterious loss of coolant / 7000 miles without a problem since new studs & gaskets..
  23. Engine swap question
  24. New Guy to Northstar and their General Maintaince
  25. Torque Converter Shaft
  26. Painting engine cover and valve cover/s
  27. 1996 Cadillac Seville SLS - Replacing water pump belt HELP!
  28. Still getting Missfire-New AC Delco Plugs and new coil packs
  29. Removing exhaust down pipe on 99 Seville
  30. 94 Cadillac Seville SLS flooding out real bad
  31. New Member engine overheating problem...
  32. Oil Pressure...
  33. Pretty sure I have a fuel leak somewhere under the hood
  34. Engine Coolant Temperature Gauges / Cooling Fans Operation Explained
  35. Oil, cams, Northstars, and ZDDP
  36. New member, 1st caddy- low coolant level warning
  37. 2000 SLS engine oddity
  38. 4.0 rebuild
  39. Northstar swap transmission please help
  40. Best method of cleaning
  41. Crank Bolt Removal and free block/tranny
  42. Time Sert Kit Needed.
  43. I’m not Convinced it the Head Gaskets again?
  44. Code question?
  45. Out the top! First time....
  46. cam swap to 4.0l
  47. Timesert Failure
  48. Looking for a GOOD shop in/near MASS for engine install.
  49. HG For Me Too!
  50. Northstar A/C
  51. ECU TROUBLE! IMPORTANT! How to fix or replace cut wires to ecu?
  52. Northstar in a 65 Corsa
  53. crank position sensor relearn
  54. I really need help OBD TROUBLE CODES 96 STS
  55. 2007 DTS Engine noise at start up help
  56. 02 Northstar in 99 sys basically complete
  57. Other Northstar Vehicles (LD8)
  58. Noticeable drop in power in warm weather
  59. norms insert alignment kit for sale
  60. 99 STS stumbles, P1370a, P1371a, P1377a codes; At wits end with this car
  61. 2000 cadillac sts completely stumped, tried everything and new to fourm.
  62. 2006 DTS Intermittent Leakage Causing Battery to go Dead Overnight
  63. new guy with 99 eldorado etc
  64. Anyone need a Stud Kit?
  65. Question about stud kit install?
  66. Timing question
  67. 94 eldo cooling problem
  68. Rear main (probable) seal leaking... talk to "Northstar performance" or no?
  69. Convert from Dex-Cool to green antifreeze
  70. Cracked Blocks. CKP swap to 00+ blocks?
  71. '96 STS starting trouble & heat only on right side
  72. how to replace a1994 sls map sensor, code p032
  73. Can anyone comment on the differences in '06 to '10 Vin Y (LD8) engines from '05
  74. 2002 Northstar security
  75. EMERGENCY! I have an interview tomorrow and my Car (2000 Eldo) is down!
  76. 2002 4t80e tranny
  77. Internal Engine Questions!
  78. Trouble communicating with Northstar Performance.
  79. It's been asked before, but more specifically.ACD 41-OEM Sparkplugs vs Denso Iridium
  80. Who has done the Most head gasket jobs on N's
  81. New supplier for a high performance exhaust crossover pipe
  82. Who has used studs from Northstar Performance ?
  83. Northstar XV12 engine
  84. Message to all stud kit customers, past, present, and future.
  85. Lower crankcase reseal questions
  86. Best Reasonably Priced Socket Tools?
  87. 2000 Eldo front cam cover gasket replacement
  88. P1599 - Engine Stall or Near Stall Detected
  89. No longer a Cadillac owner :-(
  90. PVC valve,where are you?
  91. Replaced head gaskets and northstar performance studs with egine in car
  92. Problem solved!
  93. Greetings all, Newby here. Got a '94 Eldo Northstar w/ zero problems and...
  94. new spark plugs and radio static
  95. Northstar removal guide - feedback wanted
  96. Crankcase half leak?
  97. 05 Northstar Timing Chain Failure?
  98. another shop pulling a scam?
  99. MAF SENSOR ISSUE 2000 Cadillac Seville SLS
  100. spark plugs
  101. Is it just me or does it seem like there are a lot more bad head gaskets, esp 2000+
  102. ignition switch keeps blowing on 02 deville
  103. idle vibration and no other codes/symptoms
  104. fuel pump info please
  105. 95 seville smokes tons at idle after sitting for a year
  106. Tapping Noise
  107. Coolant temp sensor
  108. 2002 Deville Mechanics are stumped
  109. white/blue smoke
  110. Fel-Pro or OEM gaskets?
  111. change to synthetic to help oil consumption?
  112. Steel of a deal?
  113. 94 top intake cover bolts- which side up
  114. 2002 Deville completely died at 80 mph
  115. pulsating engine and trans kickdown too high
  116. P0101 and P0741 -2000 Deville
  117. Cam shaft code 99 deville ongoing project with hg repair
  118. Blown Head Gasket 00 Deville
  119. God Bless America - stud kits to ship from new USA location
  120. Any differences between N* in 98 Deville and 98 Seville?
  121. 98 Deville HG failure
  122. Minimum idle speed adjustment on 1996 throttle body
  123. My NorthStar Head Stud installation picture
  124. bad idle and shuts off
  125. Question on Northstar small cover bolts, what size wrench?
  126. 2002 Cadillac DeVille and engine skip
  127. dropping Northstar
  128. Scan Tools For The DIY
  129. engine form 97 into 99?
  130. 94 4.6 Water Pump Housing question
  131. Northstar Performance - 24 hour head gasket repair & bottom end re-seal
  132. 1998 Deville, Both Cooling Fans fail to turn on when commanded with TECH II
  133. 1998 Deville Waterpump housing cover gasket is it reall a dealer only item
  134. Radiator Flush 02 deville
  135. Cannot remove spark plugs
  136. Crankshaft Sensors
  137. Crankshaft sensor?
  138. Fixed - Map sensors keep failing on 94 NorthStar
  139. Which motor mount is this?
  140. Stalls when stopping/stopped
  141. Help!!
  142. ♠ The never had a headgasket problem club…
  143. Cam Cover Colors
  144. P0410 and P0418 on 2005 Bonneville GXP
  145. Spark plug replacment
  146. 94 STS Acceleration issue
  147. EGR or IAC problem on -95 Eldo
  148. Northstar Headgasket Leak/Headbolts......Northstar Performance Bolts
  149. Sticky gas pedal
  150. Cannonball Run Sept 3/2011
  151. Would my baby make it?
  152. GM's response to ZDDP reduction in oil
  153. 1998 Cadillac STS overheating
  154. steel sleeve/block
  155. water pump cover gasket
  156. p0300
  157. New owner of a 98 Eldorado and need some advice
  158. Sub: The wikipedia of Cadillacs
  159. water pump cover leak
  160. headgasket thickness?!
  161. Garage sale
  162. Jake's studs make me happy in the pants.
  163. Any Previously tuned 2000 to 2003 PCM have lifetime tune upgrade
  164. 98 deville concour... correct spark plug gap
  165. Introduction and a little desperate for a fix
  166. 1998 Northstar throttle sticking.
  167. Coolant System Questions 1996 Cadillac Deville
  168. 98 seville sts white smoke
  169. Note to all stud kit customers, effective immediately pricing and policy changes.
  170. 2000 Deville Misfire
  171. Northstar Blown Head gasket problem
  172. Frequency of HG Failure by Age & Miles
  173. why is over filling bad ?
  174. Removing front valve covers from 99 STS engine in car.
  175. Catalytic Converter operating temp specs
  176. For those of you who've successfully rebuilt a northstar engine. . .
  177. cold carbon rap
  178. Note from grampa
  179. Jake i hope you are still here and have not left Thank you Jake for all you do
  180. when i get the heater core replaced to i stay Dex or go green
  181. Swapping PCM
  182. 99 STS running cold (yes cold!!)
  183. Denso Products
  184. '98 DeVille Northstar dies while coasting.
  185. 2000 seville SLS engine removal
  186. 94 Northstar Ecm options
  187. 500+ Northstar Headgasket repairs completed
  188. 4.6 northstar injector information
  189. '99 STS with 16k miles, go for it or no?
  190. Bad MPG is freezing weather
  191. The dreaded weekly P0741 engine code & a fix
  192. Northstar Making a Loud Noise - Need Help!
  193. 99 STS Project
  194. Dead starter?
  195. looking for mechanic who does Time sert
  196. Northstar Engine Swap
  197. codes
  198. 2001 Northstar - Head Gaskets blown or not?? I'm stumped!!
  199. About to pull engine for head gaskets, mods and other repairs while engine is out
  200. Sea foaming l37
  201. Olds Aurora Hesitating
  202. Does anyone know how the steering wheel position sensor works?
  203. Delco has new oil filter design
  204. need an northstar engine block ,northstar performance?
  205. Best Economical Way to Get A Car to Jake in Canada
  206. Well, yard engine and tranny installed and took it on a test drive for a hundred mile
  207. Doing HG 1997 STS: questions!
  208. What would it take to mount this on an Eldorado?
  209. Why me? Two Northstars with failed head bolts/gaskets
  210. 96 Deville high idle.
  211. hard cold starting
  212. Wonders if I could run drano thru my heater core to unclog? Lol
  213. Modified Olds Aurora. Merry Christmas everyone!
  214. Torque converter.
  215. anyone here done the ring cleaning procedure?
  216. Bucks, sometimes stalls only under load
  217. 1997 eldorado with northstar
  218. 2000 no roller cams i thout they where 2000 and up
  219. Got the Seville Back today Engine totaly rebuit with studs perfect
  220. Anyone know where the ground wires are for the ignition modules on 00+ Northstars?
  221. Verge of business closure and loss of the stud repair system
  222. When I put my half axles back in the trans one is out further than the other
  223. leaking Water Pump 2000 dts cadillac
  224. No cost HG replacement job, hopefully for a worthy cause this Christmas -
  225. Anyone have Picture of there Stud Job ?
  226. Anyone know what the washer and speednut on the rear transaxle mount is for?
  227. Jake, please get in contact with me
  228. carbonized pistons what does it mean ?
  229. 2000 and Newer Head Gaskets?
  230. RIP my 98. Engine goes boom at < 25,000 miles.
  231. couple questions on 2 loose ends...
  232. Suggestions for keeping 05 4.6L in mint condition?
  233. Can a torn plenum cause P0106?
  234. Best way to mate the engine to the transmission, flowers and wine?
  235. 3 out of 3: Intake Plenum
  236. Work has Been Started ThisMorning on my Baby
  237. 01 ESC project
  238. JoeTahoe you Need to Make Some Space in Your in Box
  239. To: Pete1996
  240. What Crankshaft Position Sensors should be used...brand and color...some were problem
  241. 1998 Seville stalling at stop light issues
  242. Head gasket repair, a intense project for a landscaper with little tech knowledge
  243. Need help identifying a part on the trans...
  244. Major oil leak in '98 Seville STS Northstar engine
  245. Catalyst not ready
  246. Proven NorthStar head gasket repair in Toronto
  247. Ignition quirks with built Northstar
  248. Oil pump and main seal for built Northstar
  249. Conventional oil first 2 oil changes better then full synthetic after new engine is ?
  250. How to identify VIN 9 vs VIN Y transmissions and engines