: Northstar Engines and System Technical Discussion



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  1. Nitrous supporting mods
  2. Transmissions to head brace.
  3. Cylinder Head Dowel Pins???
  4. 2000 DTS used bad Intake manifold
  5. Evap purge valve
  6. 2000 DTS started puilling down engine today
  7. So she put the wrong spark plugs into a 2001 DHS . . .
  8. North Star coolant
  9. NorthStar Performance
  10. 2002 Northstar engine repair
  11. NorthStar Performance - rebuilt rngine info
  12. Northstar transmission interchangeability
  13. What's still good and what's not...
  14. Trying to losing crank pulley bolt and it jumped time cant get the bolt to loosen!!
  15. L37 and LD8 engine interchange question
  16. Guess how many 1993-2003 N* are still on the road, without Head Gasket Failure?
  17. NORTHSTAR Head CASTING #12585774 - engine fit ??
  18. 2001 STS Alternator Not Charging
  19. 2002 STS Cooling Fan Operation
  20. snaped bolt
  21. 1998 Northstar FWD torque converter options
  22. 02 DHS Head gasket job question...
  23. Oil Pan Compatibility
  24. What Should I replace While the engine is out?
  25. Upgraded 1998 DeVille Fuel Injectors
  26. 96 SLS Head Bolts
  27. Motor mounts
  28. complete swap
  29. Motor drags... won't start
  30. Stop engine low oil pressure
  31. Northstar water pump replacement
  32. Right side exhaust manifold removal on 1995 Seville STS
  33. Problem with headbolts on HG repair
  34. 2001 STS Hooked up jumper cables wrong now car wont charge
  35. NP rebuilt engine
  36. 99 STS collapsed lifter?
  37. 2002 Deville remove bumper to remove engine cradle
  38. Northstar Performance - Jake's Studs
  39. Truth about Northstar Engine Failure?
  40. Carroll Cadillac now using TimeSerts with ARP studs.
  41. Bank 1, Bank 2 which is which
  42. Changed crankshaft position sensors, have oil leak.
  43. Can STS 2001 Northstar be converted to E85
  44. Setting timing on 96 STS
  45. Northstar headgasket repair parts
  46. Replacing Driver's Side Radiator Fan 1998 DeVille
  47. 2003 SLS -High idle and temperature after cleaning throttle body
  48. New Owner--1999 Deville - P0741
  49. 1997 Eldorado surge tank nipple cracked.
  50. New TPS now Code P085
  51. Vacuum leak
  52. Still Holding On to Bernadette... And don't Want to let go
  53. Oh so soft aluminum
  54. 98 DeVille Overheating, Coolant Leak
  55. 2000 ESC overheating
  56. Head Gasket Blown?
  57. LH2 heads on LD8 ?
  58. RE: Where is Coolant Purge Line?
  59. Engine cover gasket.
  60. 2000 northstar timing
  61. head gasket with engine in car still 99 sts
  62. Question about Northstar engines
  63. 2003 SLS Headgasket?
  64. Damaged block. Am I screwed?
  65. Blown Head Gasket ? - 1998 Northstar
  66. ECM Protocol for 2005 SRX with 4.6L LH2
  67. Can I drill the head studs holes deeper?
  68. HG in Fredericksburg, Virginia
  69. High Mile N* motors somehow cause catalytic converter failures? Need real experience
  70. P0300 code - Idle is perfectly smooth until engine warms up to 170 degrees
  71. Steel Seal? Yes or No
  72. 2003 Deville Headgasket & Cyl head time?
  73. Weird clicking noise on passenger side of motor by belt.
  74. Is it always the threads?
  75. 1998 Deville overheat ?
  76. '99 Plastic Fuel Rail
  77. Spark Plug & Wire Install - 1998 Deville misfires
  78. Performance camshafts for 2009 "STS" ?
  79. How To: 1998 DeVille Accessory Belt Tensioner Interference!
  80. 95 eldorado engine interchangeability
  81. transmission side pan removal
  82. 1998 DeVille: Reset Codes from Digital Panel
  83. 2004 Deville - ignition coil checks
  84. Overheating Issues 1997 STS
  85. Can a Bad Catalytic Converter Cause Overheating Problems?
  86. I'm back, after CCC studs installed two years ago a blown HG and loose stud WTH?
  87. Headgasket Repair Shops - Maryland
  88. 00+ Northstar Intake manifold...why so filthy inside?
  89. Super Star Studs...Anyone Ever Use Them?
  90. 1998 Deville Northstar head bolt hole repair ?
  91. Need info - Northstar engine rebuild/replace ?
  92. Head Gaskets?
  93. 1997 SLS Head Gasket Repair
  94. 2000 Deville Overheating
  95. Overheating problem - 1999 Deville
  96. 4T80E Transmission swapability
  97. 2002 Deville 220,000 miles. Want to change fuel pump.
  98. Eldorado strip times - Tuning thread
  99. 2001 DTS low oil pressure.
  100. 2003 DeVille oil pan gasket
  101. Longblock swap 2004 to 1995 4.6 FWD possible with 95 electronics?
  102. 94 Deville Concours - engine oil leak
  103. Sounds like a bearing loose - 1997 Deville
  104. Repair estimate quite high. 2000 Deville engine work
  105. Paging JoeTahoe
  106. What studs to get?
  107. Northstar in a Fiero?
  108. Overheating problem - Deville
  109. 1995 Deville ignition Coil Replacement
  110. 99 STS Head Gaskets going... Again
  111. 2000 ETC oil leak
  112. Low Oil Pressure and Coolant Temperature Messages On
  113. What kind of code reader?
  114. 99- and 00+ Interchangeability
  115. Strange banging noise - 2002 STS with Japanese-speaking DIC
  116. Tuneup - 1998 Northstar
  117. 03 Deville Motor mount R/I Hrs?
  118. 2004 Deville plenum replacement ?
  119. 1997 STS - Starting Issues and Rough Idle
  120. any help would be great tranny will not shift
  121. serpentine belt replacement
  122. Another overheating thread
  123. 2004 DHS - hard start, engine run problems
  124. Jake - Northstar Performance - your in-box is FULL -
  125. Arizona Northstar repair shop ?
  126. 98 Eldorado water cooled alternator doesn't charge when cold
  127. 1994 Eldorado - coolant leaks
  128. Coppery substance in coolant?
  129. problem with torque converter bolts
  130. 1999 Deville 4.6 Base misfire code
  131. Pre 2000 Northstar Crankshaft Position Sensors
  132. Replacing Coolant Crossover
  133. cooling system seal tablet
  134. 2002 STS Coolant Crossover Gaskets
  135. head gasket
  136. Suprise... Headgaskets
  137. Cost to replace oil pan gasket?
  138. Need help - considering a Northstar build for an ElCamino
  139. Dipstick reading
  140. North Star head bolt problem
  141. Spark plugs - 1997 Y Northstar
  142. first Cadillac questons about Northstar
  143. Head Bolt/stud question
  144. Just bought a 1995 Eldorado..was wondering what I should be looking at for maintenane
  145. 1999 SLS - apparent overheating ?
  146. Engine tap
  147. Compression And Leak Down Results.....Cam/Valve Timing Observation Discussion
  148. Why at the beginning of fuel rail and not end?
  149. 1999 DeVille coolant leak
  150. '97-won't start (fire)
  151. My Grandmothers Friend's 2000 STS has Misfire. She has a question
  152. P0507 Idle speed high after engine removal
  153. Engine block identification
  154. Cylinder Head Problems - 2005 DTS
  155. '99 Northstar head bolt torque values
  156. 1996 Deville - no fuel at the rail
  157. 2003 Deville idle air control valve
  158. 2000 Deville - dead batteries, no crank
  159. Engine cradle pulling down...
  160. 1996 Concours Oxygen Sensors
  161. 2000 - 2004 PCV piping question
  162. Help with a possible head gasket issue...2002 SLS
  163. Northstar 2001 Head Gasket Repair - Charlotte, North Carolina
  164. Northstar Engine Problems, were they ever corrected in production by GM??
  165. Anyone Ever Use A Company In Jersey Called Top Line Auto Care
  166. surge tank cap pressure
  167. Heater Pipe Adapter Part #?
  168. What Is This Gasket
  169. Northstar fuel fouling on Bank 2 good on Bank 1
  170. Thought I'd never buy another Northstar but...
  171. 2002 DTS transmission codes P 1860, P 0741
  172. Head gasket replacement
  173. Introduction - 1997 SLS with problems
  174. engine swap 2004 to a 1997 deville
  175. Northstar Engine Build Center, Batavia, NY - Northstar Performance LLC
  176. Snapped Main Bearing Bolts
  177. Head gasket question
  178. '97 DeVille NorthStar location of oil pressure switch?
  179. 2005 STS - Northstar longevity
  180. Cam Removal
  181. 2002 STS More Horsepower (Solid & Safe)
  182. Manifold over pressure valve - 1996 Northstar
  183. 2005 Deville 48k mi rough idle in morning. Thinking it could be HG issue.
  184. Not ready to give up - 1997 VIN Y Deville engine work
  185. 1999 STS Losing Coolant Possible Head Gasket
  186. Northstar wine
  187. Northstar Performance - officially offering custom PCM tuning January 2015
  188. Fuel rail and injector work on 2002 Deville
  189. Northstar VIN 9 - 2002 - engine exhaust work
  190. oil in coolant-'99 deville
  191. Northstar using excessive oil
  192. 2002 Deville AIR pump cover replacement
  193. 2002 Northstar VIN Y>9 cam swap and P/N questions - cam TSB
  194. 97 deville Help with rear coolant leak
  195. Boost and engine management - 1997 Eldorado base
  196. Cam cover bolts loose
  197. Possible HG leak in '01 SLS
  198. Upper front coolant pipe- 2000 ESC
  199. Northstar Motor Swap - 2008 into 2001 car
  200. Weird oil leak - 2002 Deville
  201. 02 Deville base different color valve covers?
  202. Northstar flexplate bolt circle question
  203. LH2 swap into another car ; questions about the northstar and computer
  204. Northstar rebuild 01 eldo
  205. No acceleration... 2003 Deville
  206. 2000 Deville misfire cylinders 1 and 2
  207. Should this come off easily?
  208. Northstar exercise and driving style
  209. 2003 Deville starter motor location
  210. 1993 4.6L Northstar engine swap into hotrod project.
  211. Whining noise at startup - 2001 Eldorado
  212. Rough idle 99'
  213. Installing a crank kit in a 99 sls
  214. very quick temp spike then normal
  215. $150 made $1,000 worth of difference
  216. Question & Video of movement in secondary cam chain
  217. 1994 SLS no-start problems
  218. What is a good operating temperature?
  219. P0336 -Crankshaft Position Sensor 'A'
  220. How to tell which valve lash adjuster is faulty.
  221. Time for HG repair
  222. icm (ignition control module) problem keeps going out
  223. How to know if you have already entered some inserts in my engine?
  224. 2000 Northstar Strange Starter Issue?
  225. 99 Northstar rebuild questions
  226. Northstars sorted out yet?
  227. 4.6 white smoke issue
  228. Northstar and a turbo
  229. 2003 Deville misfire when warm
  230. 02 Deville 90k - low idle
  231. Need bolt torque specs: Flywheel, Torque Converter, Trans bolts.
  232. All of a sudden 2003 Deville developed a miss
  233. Northstar swap wiring harness question
  234. Please post a State & City guide to Northstar Head Gasket repair shops that you know
  235. replacing the oil pan in a 2000 deville
  236. Northstar - AIR valves ?
  237. 1994 N* Fuel Pressure Regulator
  238. New Northstar Engines
  239. Timing Chain Guide Adapt - 98+ to the old style engines
  240. 97' ETC check engine gives all O2 codes
  241. Northstar Overhaul Shop near Southern Maine, NH or MA
  242. Finished Replacement Front Engine Mount
  243. Studs officially shipping from the USA - thanks to JoeTahoe
  244. what to check when buying a northstar?
  245. Can I run 40W or 50w OIL on my NORTHSTAR 4.6? I live in very HOT WEATHER
  246. How to check for Hydrolock?
  247. 1999 Deville smokes at idle
  248. 2002 Deville - Knock sensor ?
  249. 96 Deville - Misfire on #8
  250. MAP sensor location critical ?