: Northstar Engines and System Technical Discussion



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  1. 2000 northstar timing
  2. head gasket with engine in car still 99 sts
  3. Question about Northstar engines
  4. 2003 SLS Headgasket?
  5. Damaged block. Am I screwed?
  6. Blown Head Gasket ? - 1998 Northstar
  7. ECM Protocol for 2005 SRX with 4.6L LH2
  8. Can I drill the head studs holes deeper?
  9. HG in Fredericksburg, Virginia
  10. High Mile N* motors somehow cause catalytic converter failures? Need real experience
  11. 1998 DeVille/Northstar engine problems and head gasket fix
  12. P0300 code - Idle is perfectly smooth until engine warms up to 170 degrees
  13. Steel Seal? Yes or No
  14. 2003 Deville Headgasket & Cyl head time?
  15. Weird clicking noise on passenger side of motor by belt.
  16. Is it always the threads?
  17. 1998 Deville overheat ?
  18. '99 Plastic Fuel Rail
  19. Spark Plug & Wire Install - 1998 Deville misfires
  20. Performance camshafts for 2009 "STS" ?
  21. How To: 1998 DeVille Accessory Belt Tensioner Interference!
  22. 95 eldorado engine interchangeability
  23. transmission side pan removal
  24. 1998 DeVille: Reset Codes from Digital Panel
  25. 2004 Deville - ignition coil checks
  26. Overheating Issues 1997 STS
  27. Can a Bad Catalytic Converter Cause Overheating Problems?
  28. I'm back, after CCC studs installed two years ago a blown HG and loose stud WTH?
  29. Headgasket Repair Shops - Maryland
  30. 00+ Northstar Intake manifold...why so filthy inside?
  31. Super Star Studs...Anyone Ever Use Them?
  32. 1998 Deville Northstar head bolt hole repair ?
  33. Need info - Northstar engine rebuild/replace ?
  34. Head Gaskets?
  35. 1997 SLS Head Gasket Repair
  36. 2000 Deville Overheating
  37. Overheating problem - 1999 Deville
  38. 4T80E Transmission swapability
  39. 2002 Deville 220,000 miles. Want to change fuel pump.
  40. Eldorado strip times - Tuning thread
  41. 2001 DTS low oil pressure.
  42. 2003 DeVille oil pan gasket
  43. Longblock swap 2004 to 1995 4.6 FWD possible with 95 electronics?
  44. 94 Deville Concours - engine oil leak
  45. Sounds like a bearing loose - 1997 Deville
  46. Repair estimate quite high. 2000 Deville engine work
  47. Paging JoeTahoe
  48. What studs to get?
  49. Northstar in a Fiero?
  50. Overheating problem - Deville
  51. 1995 Deville ignition Coil Replacement
  52. 99 STS Head Gaskets going... Again
  53. 2000 ETC oil leak
  54. Low Oil Pressure and Coolant Temperature Messages On
  55. What kind of code reader?
  56. 99- and 00+ Interchangeability
  57. Strange banging noise - 2002 STS with Japanese-speaking DIC
  58. Tuneup - 1998 Northstar
  59. 03 Deville Motor mount R/I Hrs?
  60. 2004 Deville plenum replacement ?
  61. 1997 STS - Starting Issues and Rough Idle
  62. any help would be great tranny will not shift
  63. serpentine belt replacement
  64. Another overheating thread
  65. 2004 DHS - hard start, engine run problems
  66. Jake - Northstar Performance - your in-box is FULL -
  67. Arizona Northstar repair shop ?
  68. 98 Eldorado water cooled alternator doesn't charge when cold
  69. 1994 Eldorado - coolant leaks
  70. Coppery substance in coolant?
  71. problem with torque converter bolts
  72. 1999 Deville 4.6 Base misfire code
  73. Pre 2000 Northstar Crankshaft Position Sensors
  74. Replacing Coolant Crossover
  75. cooling system seal tablet
  76. 2002 STS Coolant Crossover Gaskets
  77. head gasket
  78. Suprise... Headgaskets
  79. Cost to replace oil pan gasket?
  80. Need help - considering a Northstar build for an ElCamino
  81. Dipstick reading
  82. North Star head bolt problem
  83. Spark plugs - 1997 Y Northstar
  84. first Cadillac questons about Northstar
  85. Head Bolt/stud question
  86. Just bought a 1995 Eldorado..was wondering what I should be looking at for maintenane
  87. 1999 SLS - apparent overheating ?
  88. Engine tap
  89. Compression And Leak Down Results.....Cam/Valve Timing Observation Discussion
  90. Why at the beginning of fuel rail and not end?
  91. 1999 DeVille coolant leak
  92. '97-won't start (fire)
  93. My Grandmothers Friend's 2000 STS has Misfire. She has a question
  94. P0507 Idle speed high after engine removal
  95. Engine block identification
  96. Cylinder Head Problems - 2005 DTS
  97. '99 Northstar head bolt torque values
  98. 1996 Deville - no fuel at the rail
  99. 2003 Deville idle air control valve
  100. 2000 Deville - dead batteries, no crank
  101. Engine cradle pulling down...
  102. 1996 Concours Oxygen Sensors
  103. 2000 - 2004 PCV piping question
  104. Help with a possible head gasket issue...2002 SLS
  105. Northstar 2001 Head Gasket Repair - Charlotte, North Carolina
  106. Northstar Engine Problems, were they ever corrected in production by GM??
  107. Anyone Ever Use A Company In Jersey Called Top Line Auto Care
  108. surge tank cap pressure
  109. Heater Pipe Adapter Part #?
  110. What Is This Gasket
  111. Northstar fuel fouling on Bank 2 good on Bank 1
  112. Thought I'd never buy another Northstar but...
  113. 2002 DTS transmission codes P 1860, P 0741
  114. Head gasket replacement
  115. Introduction - 1997 SLS with problems
  116. engine swap 2004 to a 1997 deville
  117. Northstar Engine Build Center, Batavia, NY - Northstar Performance LLC
  118. Snapped Main Bearing Bolts
  119. Head gasket question
  120. '97 DeVille NorthStar location of oil pressure switch?
  121. 2005 STS - Northstar longevity
  122. Cam Removal
  123. 2002 STS More Horsepower (Solid & Safe)
  124. Manifold over pressure valve - 1996 Northstar
  125. 2005 Deville 48k mi rough idle in morning. Thinking it could be HG issue.
  126. Not ready to give up - 1997 VIN Y Deville engine work
  127. 1999 STS Losing Coolant Possible Head Gasket
  128. Northstar wine
  129. Northstar Performance - officially offering custom PCM tuning January 2015
  130. Fuel rail and injector work on 2002 Deville
  131. Northstar VIN 9 - 2002 - engine exhaust work
  132. oil in coolant-'99 deville
  133. Northstar using excessive oil
  134. 2002 Deville AIR pump cover replacement
  135. 2002 Northstar VIN Y>9 cam swap and P/N questions - cam TSB
  136. 97 deville Help with rear coolant leak
  137. Boost and engine management - 1997 Eldorado base
  138. Cam cover bolts loose
  139. Possible HG leak in '01 SLS
  140. Upper front coolant pipe- 2000 ESC
  141. Northstar Motor Swap - 2008 into 2001 car
  142. Weird oil leak - 2002 Deville
  143. 02 Deville base different color valve covers?
  144. Northstar flexplate bolt circle question
  145. LH2 swap into another car ; questions about the northstar and computer
  146. Northstar rebuild 01 eldo
  147. No acceleration... 2003 Deville
  148. 2000 Deville misfire cylinders 1 and 2
  149. Should this come off easily?
  150. Northstar exercise and driving style
  151. 2003 Deville starter motor location
  152. 1993 4.6L Northstar engine swap into hotrod project.
  153. Whining noise at startup - 2001 Eldorado
  154. Rough idle 99'
  155. Installing a crank kit in a 99 sls
  156. very quick temp spike then normal
  157. $150 made $1,000 worth of difference
  158. Question & Video of movement in secondary cam chain
  159. 1994 SLS no-start problems
  160. What is a good operating temperature?
  161. P0336 -Crankshaft Position Sensor 'A'
  162. How to tell which valve lash adjuster is faulty.
  163. Time for HG repair
  164. icm (ignition control module) problem keeps going out
  165. How to know if you have already entered some inserts in my engine?
  166. 2000 Northstar Strange Starter Issue?
  167. 99 Northstar rebuild questions
  168. Northstars sorted out yet?
  169. 4.6 white smoke issue
  170. Northstar and a turbo
  171. 2003 Deville misfire when warm
  172. 02 Deville 90k - low idle
  173. Need bolt torque specs: Flywheel, Torque Converter, Trans bolts.
  174. All of a sudden 2003 Deville developed a miss
  175. Northstar swap wiring harness question
  176. Please post a State & City guide to Northstar Head Gasket repair shops that you know
  177. replacing the oil pan in a 2000 deville
  178. Northstar - AIR valves ?
  179. 1994 N* Fuel Pressure Regulator
  180. New Northstar Engines
  181. Timing Chain Guide Adapt - 98+ to the old style engines
  182. 97' ETC check engine gives all O2 codes
  183. Northstar Overhaul Shop near Southern Maine, NH or MA
  184. Finished Replacement Front Engine Mount
  185. Studs officially shipping from the USA - thanks to JoeTahoe
  186. what to check when buying a northstar?
  187. Can I run 40W or 50w OIL on my NORTHSTAR 4.6? I live in very HOT WEATHER
  188. How to check for Hydrolock?
  189. 1999 Deville smokes at idle
  190. 2002 Deville - Knock sensor ?
  191. 96 Deville - Misfire on #8
  192. MAP sensor location critical ?
  193. 93-94 Northstar Water Pump Tensioner
  194. Please post recommended Northstar Repair Shops in Florida
  195. Cradle won't drop on 98 STS
  196. Replaced old radiator due to crack, overheats with new radiator.. PLEASE HELP
  197. 4 Bad Headgaskets
  198. What is involved in swapping a 93 Edo vin9 with a 95 viny (is it doable) ?????
  199. Swap Nightmare
  200. 2000 Deville possible overheat
  201. EVAP code P 0442
  202. Deville Northtar engine swap and PCM problems
  203. 04 Deville - engine upgrades
  204. 2001 Deville: Won't stay running while in drive
  205. Nortstar engine removal.
  206. Engine overheat and oil in coolant - 2001 STS
  207. What do you like about your Northstar powered vehicle?
  208. Is it possible to remove the cams and keep the timing chain tensioner in place?
  209. Low coolant sensor
  210. 1999 STS leaking coolant
  211. My story: HG headgasket failure
  212. LH2 Swap - Issue starting
  213. Oil/coolant mixing
  214. Throttle Position Sensor relearn ??
  215. 2000 & up Seville air intake resonator
  216. 2001 Seville engine overhaul questions
  217. 2000 Deville Fuel Pressure Specs
  218. 2002 Deville rough idle
  219. 99 eldorado 02 sensors
  220. Oil Pressure Sending Unit - SRX
  221. P0308 #8 Misfire issue... Replaced a lot, still have issue
  222. 99 STS hard cold start. No codes, fpr tests ok and fuel is 44 psi running
  223. A method to remove Crankshaft bolt without locking the flywheel or using the starter.
  224. 2002 Deville AIR pump Vacuum line Routing
  225. 1999 Deville Headgasket - head job or total overhaul ?
  226. 2001 deville engine making kocking noise
  227. 2002 Deville Overheating after Thermostat replacement
  228. Water pump drive pulley
  229. Special tool for Northstar water pump drive pulley
  230. Reliability of 2005 and beyond Northstar-powered cars
  231. Harmonic Balancer Torque
  232. Need advice on who to do a Northstar head job in the Huntsville Alabama area
  233. NGK Spark plugs & coolant level message - 2003 Deville
  234. Get a Free set of Main Studs with Purchase of Sure Grip Cylinder Head Stud Kit
  235. Developed an engine whine... what is it?
  236. Please help with PCM issue on 1993 Allante
  237. limp mode..now misfire
  238. Water cooled alternator - what years/models ?
  239. O2 Sensors in a Hot Rod Set-up
  240. 2002 Northstar WOT, performance brakes, CORSA ?
  241. 1996 and later Northstar performance chips
  242. Magnaflows on a 2003 Deville
  243. socket down camshaft drive chain slot
  244. coolant drip middle front lower
  245. 2005 STS Camshaft Sensor Location? V8 4.6 engine
  246. Pcm issue or camshaft issue any help
  247. Rail / Injector Leak Deville 99
  248. Northstar chips, cold air intakes, and spark plugs
  249. coil on plug ignition modules
  250. Mystery Check Engine Light