: Northstar Engines and System Technical Discussion



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  1. 2000 Deville Overheating
  2. Overheating problem - 1999 Deville
  3. 4T80E Transmission swapability
  4. 2002 Deville 220,000 miles. Want to change fuel pump.
  5. Eldorado strip times - Tuning thread
  6. 2001 DTS low oil pressure.
  7. 2003 DeVille oil pan gasket
  8. Longblock swap 2004 to 1995 4.6 FWD possible with 95 electronics?
  9. 94 Deville Concours - engine oil leak
  10. Sounds like a bearing loose - 1997 Deville
  11. Repair estimate quite high. 2000 Deville engine work
  12. Paging JoeTahoe
  13. Head gasket bolt hole repair - 1998 Eldorado
  14. Northstar in a Fiero?
  15. Overheating problem - Deville
  16. 1995 Deville ignition Coil Replacement
  17. 99 STS Head Gaskets going... Again
  18. 2000 ETC oil leak
  19. Low Oil Pressure and Coolant Temperature Messages On
  20. What kind of code reader?
  21. 99- and 00+ Interchangeability
  22. Strange banging noise - 2002 STS with Japanese-speaking DIC
  23. Tuneup - 1998 Northstar
  24. 03 Deville Motor mount R/I Hrs?
  25. 2004 Deville plenum replacement ?
  26. 1997 STS - Starting Issues and Rough Idle
  27. any help would be great tranny will not shift
  28. serpentine belt replacement
  29. Another overheating thread
  30. 2004 DHS - hard start, engine run problems
  31. Jake - Northstar Performance - your in-box is FULL -
  32. Arizona Northstar repair shop ?
  33. 98 Eldorado water cooled alternator doesn't charge when cold
  34. 1994 Eldorado - coolant leaks
  35. Coppery substance in coolant?
  36. problem with torque converter bolts
  37. 1999 Deville 4.6 Base misfire code
  38. Pre 2000 Northstar Crankshaft Position Sensors
  39. Replacing Coolant Crossover
  40. cooling system seal tablet
  41. 2002 STS Coolant Crossover Gaskets
  42. head gasket
  43. Suprise... Headgaskets
  44. Cost to replace oil pan gasket?
  45. Need help - considering a Northstar build for an ElCamino
  46. Dipstick reading
  47. North Star head bolt problem
  48. Spark plugs - 1997 Y Northstar
  49. first Cadillac questons about Northstar
  50. Head Bolt/stud question
  51. Just bought a 1995 Eldorado..was wondering what I should be looking at for maintenane
  52. 1999 SLS - apparent overheating ?
  53. Engine tap
  54. Compression And Leak Down Results.....Cam/Valve Timing Observation Discussion
  55. Why at the beginning of fuel rail and not end?
  56. 1999 DeVille coolant leak
  57. '97-won't start (fire)
  58. My Grandmothers Friend's 2000 STS has Misfire. She has a question
  59. P0507 Idle speed high after engine removal
  60. Engine block identification
  61. Cylinder Head Problems - 2005 DTS
  62. '99 Northstar head bolt torque values
  63. 1996 Deville - no fuel at the rail
  64. 2003 Deville idle air control valve
  65. 2000 Deville - dead batteries, no crank
  66. Engine cradle pulling down...
  67. 1996 Concours Oxygen Sensors
  68. 2000 - 2004 PCV piping question
  69. Help with a possible head gasket issue...2002 SLS
  70. Northstar 2001 Head Gasket Repair - Charlotte, North Carolina
  71. Northstar Engine Problems, were they ever corrected in production by GM??
  72. Anyone Ever Use A Company In Jersey Called Top Line Auto Care
  73. surge tank cap pressure
  74. Heater Pipe Adapter Part #?
  75. What Is This Gasket
  76. Northstar fuel fouling on Bank 2 good on Bank 1
  77. Thought I'd never buy another Northstar but...
  78. 2002 DTS transmission codes P 1860, P 0741
  79. Head gasket replacement
  80. Introduction - 1997 SLS with problems
  81. engine swap 2004 to a 1997 deville
  82. Northstar Engine Build Center, Batavia, NY - Northstar Performance LLC
  83. Snapped Main Bearing Bolts
  84. Head gasket question
  85. '97 DeVille NorthStar location of oil pressure switch?
  86. 2005 STS - Northstar longevity
  87. Cam Removal
  88. 2002 STS More Horsepower (Solid & Safe)
  89. Manifold over pressure valve - 1996 Northstar
  90. 2005 Deville 48k mi rough idle in morning. Thinking it could be HG issue.
  91. Not ready to give up - 1997 VIN Y Deville engine work
  92. 1999 STS Losing Coolant Possible Head Gasket
  93. Northstar wine
  94. Northstar Performance - officially offering custom PCM tuning January 2015
  95. Fuel rail and injector work on 2002 Deville
  96. Northstar VIN 9 - 2002 - engine exhaust work
  97. oil in coolant-'99 deville
  98. Northstar using excessive oil
  99. 2002 Deville AIR pump cover replacement
  100. 2002 Northstar VIN Y>9 cam swap and P/N questions - cam TSB
  101. 97 deville Help with rear coolant leak
  102. Boost and engine management - 1997 Eldorado base
  103. Cam cover bolts loose
  104. Possible HG leak in '01 SLS
  105. Upper front coolant pipe- 2000 ESC
  106. Northstar Motor Swap - 2008 into 2001 car
  107. Weird oil leak - 2002 Deville
  108. 02 Deville base different color valve covers?
  109. Northstar flexplate bolt circle question
  110. LH2 swap into another car ; questions about the northstar and computer
  111. Northstar rebuild 01 eldo
  112. No acceleration... 2003 Deville
  113. 2000 Deville misfire cylinders 1 and 2
  114. Should this come off easily?
  115. Northstar exercise and driving style
  116. 2003 Deville starter motor location
  117. 1993 4.6L Northstar engine swap into hotrod project.
  118. Whining noise at startup - 2001 Eldorado
  119. Rough idle 99'
  120. Installing a crank kit in a 99 sls
  121. very quick temp spike then normal
  122. $150 made $1,000 worth of difference
  123. Question & Video of movement in secondary cam chain
  124. 1994 SLS no-start problems
  125. What is a good operating temperature?
  126. P0336 -Crankshaft Position Sensor 'A'
  127. How to tell which valve lash adjuster is faulty.
  128. Time for HG repair
  129. icm (ignition control module) problem keeps going out
  130. How to know if you have already entered some inserts in my engine?
  131. 2000 Northstar Strange Starter Issue?
  132. 99 Northstar rebuild questions
  133. Northstars sorted out yet?
  134. 4.6 white smoke issue
  135. Northstar and a turbo
  136. 2003 Deville misfire when warm
  137. 02 Deville 90k - low idle
  138. Need bolt torque specs: Flywheel, Torque Converter, Trans bolts.
  139. All of a sudden 2003 Deville developed a miss
  140. Northstar swap wiring harness question
  141. Any shops that know the N* near Ft. Walton Beach,FL ?
  142. replacing the oil pan in a 2000 deville
  143. Northstar - AIR valves ?
  144. 1994 N* Fuel Pressure Regulator
  145. New Northstar Engines
  146. Timing Chain Guide Adapt - 98+ to the old style engines
  147. 97' ETC check engine gives all O2 codes
  148. Northstar Overhaul Shop near Southern Maine, NH or MA
  149. Finished Replacement Front Engine Mount
  150. Studs officially shipping from the USA - thanks to JoeTahoe
  151. what to check when buying a northstar?
  152. Can I run 40W or 50w OIL on my NORTHSTAR 4.6? I live in very HOT WEATHER
  153. How to check for Hydrolock?
  154. 1999 Deville smokes at idle
  155. 2002 Deville - Knock sensor ?
  156. 96 Deville - Misfire on #8
  157. MAP sensor location critical ?
  158. 93-94 Northstar Water Pump Tensioner
  159. Please post recommended Northstar Repair Shops in Florida
  160. Cradle won't drop on 98 STS
  161. Replaced old radiator due to crack, overheats with new radiator.. PLEASE HELP
  162. 4 Bad Headgaskets
  163. What is involved in swapping a 93 Edo vin9 with a 95 viny (is it doable) ?????
  164. Swap Nightmare
  165. 2000 Deville possible overheat
  166. EVAP code P 0442
  167. Deville Northtar engine swap and PCM problems
  168. 04 Deville - engine upgrades
  169. 2001 Deville: Won't stay running while in drive
  170. Nortstar engine removal.
  171. Engine overheat and oil in coolant - 2001 STS
  172. What do you like about your Northstar powered vehicle?
  173. Is it possible to remove the cams and keep the timing chain tensioner in place?
  174. Low coolant sensor
  175. 1999 STS leaking coolant
  176. My story: HG headgasket failure
  177. LH2 Swap - Issue starting
  178. Oil/coolant mixing
  179. Throttle Position Sensor relearn ??
  180. 2000 & up Seville air intake resonator
  181. 2001 Seville engine overhaul questions
  182. 2000 Deville Fuel Pressure Specs
  183. 2002 Deville rough idle
  184. 99 eldorado 02 sensors
  185. Oil Pressure Sending Unit - SRX
  186. P0308 #8 Misfire issue... Replaced a lot, still have issue
  187. 99 STS hard cold start. No codes, fpr tests ok and fuel is 44 psi running
  188. A method to remove Crankshaft bolt without locking the flywheel or using the starter.
  189. 2002 Deville AIR pump Vacuum line Routing
  190. 1999 Deville Headgasket - head job or total overhaul ?
  191. 2001 deville engine making kocking noise
  192. 2002 Deville Overheating after Thermostat replacement
  193. Water pump drive pulley
  194. Special tool for Northstar water pump drive pulley
  195. Reliability of 2005 and beyond Northstar-powered cars
  196. Harmonic Balancer Torque
  197. Need advice on who to do a Northstar head job in the Huntsville Alabama area
  198. NGK Spark plugs & coolant level message - 2003 Deville
  199. Get a Free set of Main Studs with Purchase of Sure Grip Cylinder Head Stud Kit
  200. Developed an engine whine... what is it?
  201. Please help with PCM issue on 1993 Allante
  202. limp mode..now misfire
  203. Water cooled alternator - what years/models ?
  204. O2 Sensors in a Hot Rod Set-up
  205. 2002 Northstar WOT, performance brakes, CORSA ?
  206. 1996 and later Northstar performance chips
  207. Magnaflows on a 2003 Deville
  208. socket down camshaft drive chain slot
  209. coolant drip middle front lower
  210. 2005 STS Camshaft Sensor Location? V8 4.6 engine
  211. Pcm issue or camshaft issue any help
  212. Rail / Injector Leak Deville 99
  213. Northstar chips, cold air intakes, and spark plugs
  214. coil on plug ignition modules
  215. Mystery Check Engine Light
  216. Only starts with starting fluid - '97 SLS
  217. 99 STS head gasket repair [ in car]
  218. Problem with 97 Eldorado. P 0300...
  219. 02 Cooling building back pressure. Purge line clear.
  220. 1998 STS coolant change
  221. Mystery Black Wire
  222. Oil pressure
  223. 98 deville, uses oil? but how
  224. What year is my Northstar motor, and what cars will it drop into?
  225. trouble with spark from coil packs
  226. Replace and Reprogram PCM 2001 DTS
  227. 1995 SLS - Poor idle quality
  228. Oil Pan Gasket and Permatex UltraGray placement
  229. 98 Deville, changing the coolant, sealant tabs?
  230. 2000 series Northstar water pump will not come out
  231. Fuel pressure regulator
  232. 2003 Deville - exhaust steaming and coolant loss
  233. Can't remove Water Pump Drive pulley.. ever seen one that is stuck?
  234. Best Rear Main Seal Fix?
  235. Critique my coolant flush method
  236. Oil pressure light - 1998 Deville Northstar
  237. 1994 Eldorado thermostat replacement and coolant leak
  238. EGR Tubing
  239. '02 Seville was running fine, now it's not ?
  240. flex tube exhaust
  241. 01 Northstar Water in oil, high oil use, misses when cold.
  242. Coolant Leak Source? (pictures)
  243. When to reseal case halves?
  244. Look what I found in my engine!
  245. Puzzling Clattering Noise During Warm Startups
  246. HG's vs Pulled Threads
  247. Cat problems?
  248. Oil leaks on 1998 ElDorado
  249. 2000+ Intake Manifold on 1998 Northstar
  250. 2001 Deville - coolant boiling in reservoir