: Northstar Engines and System Technical Discussion



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  1. head gasket with engine in car still 99 sts
  2. Question about Northstar engines
  3. 2003 SLS Headgasket?
  4. Damaged block. Am I screwed?
  5. Blown Head Gasket ? - 1998 Northstar
  6. ECM Protocol for 2005 SRX with 4.6L LH2
  7. Can I drill the head studs holes deeper?
  8. HG in Fredericksburg, Virginia
  9. High Mile N* motors somehow cause catalytic converter failures? Need real experience
  10. P0300 code - Idle is perfectly smooth until engine warms up to 170 degrees
  11. Steel Seal? Yes or No
  12. Weird clicking noise on passenger side of motor by belt.
  13. Is it always the threads?
  14. 1998 Deville overheat ?
  15. '99 Plastic Fuel Rail
  16. Spark Plug & Wire Install - 1998 Deville misfires
  17. Performance camshafts for 2009 "STS" ?
  18. How To: 1998 DeVille Accessory Belt Tensioner Interference!
  19. 95 eldorado engine interchangeability
  20. transmission side pan removal
  21. 1998 DeVille: Reset Codes from Digital Panel
  22. 2004 Deville - ignition coil checks
  23. Overheating Issues 1997 STS
  24. Can a Bad Catalytic Converter Cause Overheating Problems?
  25. I'm back, after CCC studs installed two years ago a blown HG and loose stud WTH?
  26. Headgasket Repair Shops - Maryland
  27. 00+ Northstar Intake manifold...why so filthy inside?
  28. Super Star Studs...Anyone Ever Use Them?
  29. 1998 Deville Northstar head bolt hole repair ?
  30. Need info - Northstar engine rebuild/replace ?
  31. Head Gaskets?
  32. 1997 SLS Head Gasket Repair
  33. 2000 Deville Overheating
  34. Overheating problem - 1999 Deville
  35. 4T80E Transmission swapability
  36. 2002 Deville 220,000 miles. Want to change fuel pump.
  37. Eldorado strip times - Tuning thread
  38. 2001 DTS low oil pressure.
  39. 2003 DeVille oil pan gasket
  40. Longblock swap 2004 to 1995 4.6 FWD possible with 95 electronics?
  41. 94 Deville Concours - engine oil leak
  42. Sounds like a bearing loose - 1997 Deville
  43. Repair estimate quite high. 2000 Deville engine work
  44. Paging JoeTahoe
  45. What studs to get?
  46. Northstar in a Fiero?
  47. Overheating problem - Deville
  48. 1995 Deville ignition Coil Replacement
  49. 99 STS Head Gaskets going... Again
  50. 2000 ETC oil leak
  51. Low Oil Pressure and Coolant Temperature Messages On
  52. What kind of code reader?
  53. 99- and 00+ Interchangeability
  54. Strange banging noise - 2002 STS with Japanese-speaking DIC
  55. Tuneup - 1998 Northstar
  56. 03 Deville Motor mount R/I Hrs?
  57. 2004 Deville plenum replacement ?
  58. 1997 STS - Starting Issues and Rough Idle
  59. any help would be great tranny will not shift
  60. serpentine belt replacement
  61. Another overheating thread
  62. 2004 DHS - hard start, engine run problems
  63. Jake - Northstar Performance - your in-box is FULL -
  64. Arizona Northstar repair shop ?
  65. 98 Eldorado water cooled alternator doesn't charge when cold
  66. 1994 Eldorado - coolant leaks
  67. Coppery substance in coolant?
  68. problem with torque converter bolts
  69. 1999 Deville 4.6 Base misfire code
  70. Pre 2000 Northstar Crankshaft Position Sensors
  71. Replacing Coolant Crossover
  72. cooling system seal tablet
  73. 2002 STS Coolant Crossover Gaskets
  74. head gasket
  75. Suprise... Headgaskets
  76. Cost to replace oil pan gasket?
  77. Need help - considering a Northstar build for an ElCamino
  78. Dipstick reading
  79. North Star head bolt problem
  80. Spark plugs - 1997 Y Northstar
  81. first Cadillac questons about Northstar
  82. Head Bolt/stud question
  83. Just bought a 1995 Eldorado..was wondering what I should be looking at for maintenane
  84. 1999 SLS - apparent overheating ?
  85. Engine tap
  86. Compression And Leak Down Results.....Cam/Valve Timing Observation Discussion
  87. Why at the beginning of fuel rail and not end?
  88. 1999 DeVille coolant leak
  89. '97-won't start (fire)
  90. My Grandmothers Friend's 2000 STS has Misfire. She has a question
  91. P0507 Idle speed high after engine removal
  92. Engine block identification
  93. Cylinder Head Problems - 2005 DTS
  94. '99 Northstar head bolt torque values
  95. 1996 Deville - no fuel at the rail
  96. 2003 Deville idle air control valve
  97. 2000 Deville - dead batteries, no crank
  98. Engine cradle pulling down...
  99. 1996 Concours Oxygen Sensors
  100. 2000 - 2004 PCV piping question
  101. Help with a possible head gasket issue...2002 SLS
  102. Northstar 2001 Head Gasket Repair - Charlotte, North Carolina
  103. Northstar Engine Problems, were they ever corrected in production by GM??
  104. Anyone Ever Use A Company In Jersey Called Top Line Auto Care
  105. surge tank cap pressure
  106. Heater Pipe Adapter Part #?
  107. What Is This Gasket
  108. Northstar fuel fouling on Bank 2 good on Bank 1
  109. Thought I'd never buy another Northstar but...
  110. 2002 DTS transmission codes P 1860, P 0741
  111. Head gasket replacement
  112. Introduction - 1997 SLS with problems
  113. engine swap 2004 to a 1997 deville
  114. Northstar Engine Build Center, Batavia, NY - Northstar Performance LLC
  115. Snapped Main Bearing Bolts
  116. Head gasket question
  117. '97 DeVille NorthStar location of oil pressure switch?
  118. 2005 STS - Northstar longevity
  119. Cam Removal
  120. 2002 STS More Horsepower (Solid & Safe)
  121. Manifold over pressure valve - 1996 Northstar
  122. 2005 Deville 48k mi rough idle in morning. Thinking it could be HG issue.
  123. Not ready to give up - 1997 VIN Y Deville engine work
  124. 1999 STS Losing Coolant Possible Head Gasket
  125. Northstar wine
  126. Northstar Performance - officially offering custom PCM tuning January 2015
  127. Fuel rail and injector work on 2002 Deville
  128. Northstar VIN 9 - 2002 - engine exhaust work
  129. oil in coolant-'99 deville
  130. Northstar using excessive oil
  131. 2002 Deville AIR pump cover replacement
  132. 2002 Northstar VIN Y>9 cam swap and P/N questions - cam TSB
  133. 97 deville Help with rear coolant leak
  134. Boost and engine management - 1997 Eldorado base
  135. Cam cover bolts loose
  136. Possible HG leak in '01 SLS
  137. Upper front coolant pipe- 2000 ESC
  138. Northstar Motor Swap - 2008 into 2001 car
  139. Weird oil leak - 2002 Deville
  140. 02 Deville base different color valve covers?
  141. Northstar flexplate bolt circle question
  142. LH2 swap into another car ; questions about the northstar and computer
  143. Northstar rebuild 01 eldo
  144. No acceleration... 2003 Deville
  145. 2000 Deville misfire cylinders 1 and 2
  146. Should this come off easily?
  147. Northstar exercise and driving style
  148. 2003 Deville starter motor location
  149. 1993 4.6L Northstar engine swap into hotrod project.
  150. Whining noise at startup - 2001 Eldorado
  151. Rough idle 99'
  152. Installing a crank kit in a 99 sls
  153. very quick temp spike then normal
  154. $150 made $1,000 worth of difference
  155. Question & Video of movement in secondary cam chain
  156. 1994 SLS no-start problems
  157. What is a good operating temperature?
  158. P0336 -Crankshaft Position Sensor 'A'
  159. How to tell which valve lash adjuster is faulty.
  160. Time for HG repair
  161. icm (ignition control module) problem keeps going out
  162. How to know if you have already entered some inserts in my engine?
  163. 2000 Northstar Strange Starter Issue?
  164. 99 Northstar rebuild questions
  165. Northstars sorted out yet?
  166. 4.6 white smoke issue
  167. Northstar and a turbo
  168. 2003 Deville misfire when warm
  169. 02 Deville 90k - low idle
  170. Need bolt torque specs: Flywheel, Torque Converter, Trans bolts.
  171. All of a sudden 2003 Deville developed a miss
  172. Northstar swap wiring harness question
  173. Any shops that know the N* near Ft. Walton Beach,FL ?
  174. replacing the oil pan in a 2000 deville
  175. Northstar - AIR valves ?
  176. 1994 N* Fuel Pressure Regulator
  177. New Northstar Engines
  178. Timing Chain Guide Adapt - 98+ to the old style engines
  179. 97' ETC check engine gives all O2 codes
  180. Northstar Overhaul Shop near Southern Maine, NH or MA
  181. Finished Replacement Front Engine Mount
  182. Studs officially shipping from the USA - thanks to JoeTahoe
  183. what to check when buying a northstar?
  184. Can I run 40W or 50w OIL on my NORTHSTAR 4.6? I live in very HOT WEATHER
  185. How to check for Hydrolock?
  186. 1999 Deville smokes at idle
  187. 2002 Deville - Knock sensor ?
  188. 96 Deville - Misfire on #8
  189. MAP sensor location critical ?
  190. 93-94 Northstar Water Pump Tensioner
  191. Please post recommended Northstar Repair Shops in Florida
  192. Cradle won't drop on 98 STS
  193. Replaced old radiator due to crack, overheats with new radiator.. PLEASE HELP
  194. 4 Bad Headgaskets
  195. What is involved in swapping a 93 Edo vin9 with a 95 viny (is it doable) ?????
  196. Swap Nightmare
  197. 2000 Deville possible overheat
  198. EVAP code P 0442
  199. Deville Northtar engine swap and PCM problems
  200. 04 Deville - engine upgrades
  201. 2001 Deville: Won't stay running while in drive
  202. Nortstar engine removal.
  203. Engine overheat and oil in coolant - 2001 STS
  204. What do you like about your Northstar powered vehicle?
  205. Is it possible to remove the cams and keep the timing chain tensioner in place?
  206. Low coolant sensor
  207. 1999 STS leaking coolant
  208. My story: HG headgasket failure
  209. LH2 Swap - Issue starting
  210. Oil/coolant mixing
  211. Throttle Position Sensor relearn ??
  212. 2000 & up Seville air intake resonator
  213. 2001 Seville engine overhaul questions
  214. 2000 Deville Fuel Pressure Specs
  215. 2002 Deville rough idle
  216. 99 eldorado 02 sensors
  217. Oil Pressure Sending Unit - SRX
  218. P0308 #8 Misfire issue... Replaced a lot, still have issue
  219. 99 STS hard cold start. No codes, fpr tests ok and fuel is 44 psi running
  220. A method to remove Crankshaft bolt without locking the flywheel or using the starter.
  221. 2002 Deville AIR pump Vacuum line Routing
  222. 1999 Deville Headgasket - head job or total overhaul ?
  223. 2001 deville engine making kocking noise
  224. 2002 Deville Overheating after Thermostat replacement
  225. Water pump drive pulley
  226. Special tool for Northstar water pump drive pulley
  227. Reliability of 2005 and beyond Northstar-powered cars
  228. Harmonic Balancer Torque
  229. Need advice on who to do a Northstar head job in the Huntsville Alabama area
  230. NGK Spark plugs & coolant level message - 2003 Deville
  231. Get a Free set of Main Studs with Purchase of Sure Grip Cylinder Head Stud Kit
  232. Developed an engine whine... what is it?
  233. Please help with PCM issue on 1993 Allante
  234. limp mode..now misfire
  235. Water cooled alternator - what years/models ?
  236. O2 Sensors in a Hot Rod Set-up
  237. 2002 Northstar WOT, performance brakes, CORSA ?
  238. 1996 and later Northstar performance chips
  239. Magnaflows on a 2003 Deville
  240. socket down camshaft drive chain slot
  241. coolant drip middle front lower
  242. 2005 STS Camshaft Sensor Location? V8 4.6 engine
  243. Pcm issue or camshaft issue any help
  244. Rail / Injector Leak Deville 99
  245. Northstar chips, cold air intakes, and spark plugs
  246. coil on plug ignition modules
  247. Mystery Check Engine Light
  248. Only starts with starting fluid - '97 SLS
  249. 99 STS head gasket repair [ in car]
  250. Problem with 97 Eldorado. P 0300...