: Northstar Engines and System Technical Discussion



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