: Northstar Engines and System Technical Discussion



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  1. 1998 Northstar FWD torque converter options
  2. 02 DHS Head gasket job question...
  3. Oil Pan Compatibility
  4. What Should I replace While the engine is out?
  5. Upgraded 1998 DeVille Fuel Injectors
  6. 96 SLS Head Bolts
  7. Motor mounts
  8. complete swap
  9. Motor drags... won't start
  10. Stop engine low oil pressure
  11. Northstar water pump replacement
  12. Right side exhaust manifold removal on 1995 Seville STS
  13. Problem with headbolts on HG repair
  14. 2001 STS Hooked up jumper cables wrong now car wont charge
  15. NP rebuilt engine
  16. 99 STS collapsed lifter?
  17. 2002 Deville remove bumper to remove engine cradle
  18. Northstar Performance - Jake's Studs
  19. Truth about Northstar Engine Failure?
  20. Bank 1, Bank 2 which is which
  21. Changed crankshaft position sensors, have oil leak.
  22. Can STS 2001 Northstar be converted to E85
  23. Setting timing on 96 STS
  24. Northstar headgasket repair parts
  25. Replacing Driver's Side Radiator Fan 1998 DeVille
  26. 2003 SLS -High idle and temperature after cleaning throttle body
  27. New Owner--1999 Deville - P0741
  28. 1997 Eldorado surge tank nipple cracked.
  29. New TPS now Code P085
  30. Vacuum leak
  31. Still Holding On to Bernadette... And don't Want to let go
  32. Oh so soft aluminum
  33. 98 DeVille Overheating, Coolant Leak
  34. 2000 ESC overheating
  35. Head Gasket Blown?
  36. LH2 heads on LD8 ?
  37. RE: Where is Coolant Purge Line?
  38. Engine cover gasket.
  39. 2000 northstar timing
  40. head gasket with engine in car still 99 sts
  41. Question about Northstar engines
  42. 2003 SLS Headgasket?
  43. Damaged block. Am I screwed?
  44. Blown Head Gasket ? - 1998 Northstar
  45. ECM Protocol for 2005 SRX with 4.6L LH2
  46. Can I drill the head studs holes deeper?
  47. HG in Fredericksburg, Virginia
  48. High Mile N* motors somehow cause catalytic converter failures? Need real experience
  49. 1998 DeVille/Northstar engine problems and head gasket fix
  50. P0300 code - Idle is perfectly smooth until engine warms up to 170 degrees
  51. Steel Seal? Yes or No
  52. 2003 Deville Headgasket & Cyl head time?
  53. Weird clicking noise on passenger side of motor by belt.
  54. Is it always the threads?
  55. 1998 Deville overheat ?
  56. '99 Plastic Fuel Rail
  57. Spark Plug & Wire Install - 1998 Deville misfires
  58. Performance camshafts for 2009 "STS" ?
  59. How To: 1998 DeVille Accessory Belt Tensioner Interference!
  60. 95 eldorado engine interchangeability
  61. transmission side pan removal
  62. 1998 DeVille: Reset Codes from Digital Panel
  63. 2004 Deville - ignition coil checks
  64. Overheating Issues 1997 STS
  65. Can a Bad Catalytic Converter Cause Overheating Problems?
  66. I'm back, after CCC studs installed two years ago a blown HG and loose stud WTH?
  67. Headgasket Repair Shops - Maryland
  68. 00+ Northstar Intake manifold...why so filthy inside?
  69. Super Star Studs...Anyone Ever Use Them?
  70. 1998 Deville Northstar head bolt hole repair ?
  71. Need info - Northstar engine rebuild/replace ?
  72. Head Gaskets?
  73. 1997 SLS Head Gasket Repair
  74. 2000 Deville Overheating
  75. Overheating problem - 1999 Deville
  76. 4T80E Transmission swapability
  77. 2002 Deville 220,000 miles. Want to change fuel pump.
  78. Eldorado strip times - Tuning thread
  79. 2001 DTS low oil pressure.
  80. 2003 DeVille oil pan gasket
  81. Longblock swap 2004 to 1995 4.6 FWD possible with 95 electronics?
  82. 94 Deville Concours - engine oil leak
  83. Sounds like a bearing loose - 1997 Deville
  84. Repair estimate quite high. 2000 Deville engine work
  85. Paging JoeTahoe
  86. What studs to get?
  87. Northstar in a Fiero?
  88. Overheating problem - Deville
  89. 1995 Deville ignition Coil Replacement
  90. 99 STS Head Gaskets going... Again
  91. 2000 ETC oil leak
  92. Low Oil Pressure and Coolant Temperature Messages On
  93. What kind of code reader?
  94. 99- and 00+ Interchangeability
  95. Strange banging noise - 2002 STS with Japanese-speaking DIC
  96. Tuneup - 1998 Northstar
  97. 03 Deville Motor mount R/I Hrs?
  98. 2004 Deville plenum replacement ?
  99. 1997 STS - Starting Issues and Rough Idle
  100. any help would be great tranny will not shift
  101. serpentine belt replacement
  102. Another overheating thread
  103. 2004 DHS - hard start, engine run problems
  104. Jake - Northstar Performance - your in-box is FULL -
  105. Arizona Northstar repair shop ?
  106. 98 Eldorado water cooled alternator doesn't charge when cold
  107. 1994 Eldorado - coolant leaks
  108. Coppery substance in coolant?
  109. problem with torque converter bolts
  110. 1999 Deville 4.6 Base misfire code
  111. Pre 2000 Northstar Crankshaft Position Sensors
  112. Replacing Coolant Crossover
  113. cooling system seal tablet
  114. 2002 STS Coolant Crossover Gaskets
  115. head gasket
  116. Suprise... Headgaskets
  117. Cost to replace oil pan gasket?
  118. Need help - considering a Northstar build for an ElCamino
  119. Dipstick reading
  120. North Star head bolt problem
  121. Spark plugs - 1997 Y Northstar
  122. first Cadillac questons about Northstar
  123. Head Bolt/stud question
  124. Just bought a 1995 Eldorado..was wondering what I should be looking at for maintenane
  125. 1999 SLS - apparent overheating ?
  126. Engine tap
  127. Compression And Leak Down Results.....Cam/Valve Timing Observation Discussion
  128. Why at the beginning of fuel rail and not end?
  129. 1999 DeVille coolant leak
  130. '97-won't start (fire)
  131. My Grandmothers Friend's 2000 STS has Misfire. She has a question
  132. P0507 Idle speed high after engine removal
  133. Engine block identification
  134. Cylinder Head Problems - 2005 DTS
  135. '99 Northstar head bolt torque values
  136. 1996 Deville - no fuel at the rail
  137. 2003 Deville idle air control valve
  138. 2000 Deville - dead batteries, no crank
  139. Engine cradle pulling down...
  140. 1996 Concours Oxygen Sensors
  141. 2000 - 2004 PCV piping question
  142. Help with a possible head gasket issue...2002 SLS
  143. Northstar 2001 Head Gasket Repair - Charlotte, North Carolina
  144. Northstar Engine Problems, were they ever corrected in production by GM??
  145. Anyone Ever Use A Company In Jersey Called Top Line Auto Care
  146. surge tank cap pressure
  147. Heater Pipe Adapter Part #?
  148. What Is This Gasket
  149. Northstar fuel fouling on Bank 2 good on Bank 1
  150. Thought I'd never buy another Northstar but...
  151. 2002 DTS transmission codes P 1860, P 0741
  152. Head gasket replacement
  153. Introduction - 1997 SLS with problems
  154. engine swap 2004 to a 1997 deville
  155. Northstar Engine Build Center, Batavia, NY - Northstar Performance LLC
  156. Snapped Main Bearing Bolts
  157. Head gasket question
  158. '97 DeVille NorthStar location of oil pressure switch?
  159. 2005 STS - Northstar longevity
  160. Cam Removal
  161. 2002 STS More Horsepower (Solid & Safe)
  162. Manifold over pressure valve - 1996 Northstar
  163. 2005 Deville 48k mi rough idle in morning. Thinking it could be HG issue.
  164. Not ready to give up - 1997 VIN Y Deville engine work
  165. 1999 STS Losing Coolant Possible Head Gasket
  166. Northstar wine
  167. Northstar Performance - officially offering custom PCM tuning January 2015
  168. Fuel rail and injector work on 2002 Deville
  169. Northstar VIN 9 - 2002 - engine exhaust work
  170. oil in coolant-'99 deville
  171. Northstar using excessive oil
  172. 2002 Deville AIR pump cover replacement
  173. 2002 Northstar VIN Y>9 cam swap and P/N questions - cam TSB
  174. 97 deville Help with rear coolant leak
  175. Boost and engine management - 1997 Eldorado base
  176. Cam cover bolts loose
  177. Possible HG leak in '01 SLS
  178. Upper front coolant pipe- 2000 ESC
  179. Northstar Motor Swap - 2008 into 2001 car
  180. Weird oil leak - 2002 Deville
  181. 02 Deville base different color valve covers?
  182. Northstar flexplate bolt circle question
  183. LH2 swap into another car ; questions about the northstar and computer
  184. Northstar rebuild 01 eldo
  185. No acceleration... 2003 Deville
  186. 2000 Deville misfire cylinders 1 and 2
  187. Should this come off easily?
  188. Northstar exercise and driving style
  189. 2003 Deville starter motor location
  190. 1993 4.6L Northstar engine swap into hotrod project.
  191. Whining noise at startup - 2001 Eldorado
  192. Rough idle 99'
  193. Installing a crank kit in a 99 sls
  194. very quick temp spike then normal
  195. $150 made $1,000 worth of difference
  196. Question & Video of movement in secondary cam chain
  197. 1994 SLS no-start problems
  198. What is a good operating temperature?
  199. P0336 -Crankshaft Position Sensor 'A'
  200. How to tell which valve lash adjuster is faulty.
  201. Time for HG repair
  202. icm (ignition control module) problem keeps going out
  203. How to know if you have already entered some inserts in my engine?
  204. 2000 Northstar Strange Starter Issue?
  205. 99 Northstar rebuild questions
  206. Northstars sorted out yet?
  207. 4.6 white smoke issue
  208. Northstar and a turbo
  209. 2003 Deville misfire when warm
  210. 02 Deville 90k - low idle
  211. Need bolt torque specs: Flywheel, Torque Converter, Trans bolts.
  212. All of a sudden 2003 Deville developed a miss
  213. Northstar swap wiring harness question
  214. Please post a State & City guide to Northstar Head Gasket repair shops that you know
  215. replacing the oil pan in a 2000 deville
  216. Northstar - AIR valves ?
  217. 1994 N* Fuel Pressure Regulator
  218. New Northstar Engines
  219. Timing Chain Guide Adapt - 98+ to the old style engines
  220. 97' ETC check engine gives all O2 codes
  221. Northstar Overhaul Shop near Southern Maine, NH or MA
  222. Finished Replacement Front Engine Mount
  223. Studs officially shipping from the USA - thanks to JoeTahoe
  224. what to check when buying a northstar?
  225. Can I run 40W or 50w OIL on my NORTHSTAR 4.6? I live in very HOT WEATHER
  226. How to check for Hydrolock?
  227. 1999 Deville smokes at idle
  228. 2002 Deville - Knock sensor ?
  229. 96 Deville - Misfire on #8
  230. MAP sensor location critical ?
  231. 93-94 Northstar Water Pump Tensioner
  232. Please post recommended Northstar Repair Shops in Florida
  233. Cradle won't drop on 98 STS
  234. Replaced old radiator due to crack, overheats with new radiator.. PLEASE HELP
  235. 4 Bad Headgaskets
  236. What is involved in swapping a 93 Edo vin9 with a 95 viny (is it doable) ?????
  237. Swap Nightmare
  238. 2000 Deville possible overheat
  239. EVAP code P 0442
  240. Deville Northtar engine swap and PCM problems
  241. 04 Deville - engine upgrades
  242. 2001 Deville: Won't stay running while in drive
  243. Nortstar engine removal.
  244. Engine overheat and oil in coolant - 2001 STS
  245. What do you like about your Northstar powered vehicle?
  246. Is it possible to remove the cams and keep the timing chain tensioner in place?
  247. Low coolant sensor
  248. 1999 STS leaking coolant
  249. My story: HG headgasket failure
  250. LH2 Swap - Issue starting