: Northstar Engines and System Technical Discussion



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  1. Help with 98 STS part.
  2. Summit Turbo Mufflers?
  3. advice on correct coolant temps for 92 eldorado
  4. Is your N* running bad, hesitating, missing??
  5. Head gasket replacement
  6. Can DIC messages be cleared for good??
  7. Code I039??
  8. blown head gasket
  9. Strange rhythmic vibration 2000 DTS
  10. Electronic Speedometer Display
  11. Blue Devil Engine & Cooling system Sealer!?
  12. Major problems at 80K miles. Is this normal?
  13. Buzzing and ringing...
  14. Performance mod
  15. "flapper door" replacement?
  16. OBDII Programmers
  17. Limp Home what is it??
  18. 99 N doesnt come with factory strut tower bar?
  19. Before And After....(Mufflers)
  20. witch fuse?
  21. Coolant Change 98 Deville
  22. 96 Sedan Deville-Where is the thermostat located
  23. Engine Codes PC0300 & RF2560
  24. Hotrod with the N*
  25. Engine Swap Info
  26. chugging N*
  27. OK, tired of Headgasket worry...
  28. 96 SLS burning oil like it's gas
  29. Remove the water pump pulley
  30. Tool to remove the water pump pulley
  31. 95 Deville Oil Presure
  32. engine died
  33. Tune Up Time!
  34. 97eldo Need Help
  35. missing bolts on side of oilpan and A-frame...
  36. Torque strut removal and "engine tilt"
  37. Thread inserts?
  38. Can you use 10W-40 in a Northstar
  39. Are AC/Delco parts available only at the dealer?
  40. '98 Deville Rough Idle, Shaking, Stuttering Under Acceleration
  41. How do you properly use pellets? Northstar
  42. Engine seems to misfire a bit when it's cold or damp out
  43. coolant coming out of overflow hose like faucet '97 Eldo
  44. SES Misfiring DTC P0300 My hunch is.....
  45. Oil cooler line leak, 4.6 N*
  46. Tightening time saver and accuracy improved with simple trick
  47. It Happened,the dreaded overheat!
  48. Oil pump - what is the grove and the port for
  49. Any performance parts for the N*?
  50. Intermediate timeing chain shaft - O ring?
  51. 98 Eldo N* 4.6 Overheating
  52. ZEX ordered....
  53. Latest head bolt tightening spec?
  54. Corsa scrwwed me over!
  55. Help with emissions system
  56. Supercharged Northstar
  57. Bbob?? Could you look at this Link?
  58. My water pump belt is dancing around...
  59. Belt Tensioner Condition - Bboby?
  60. Northstar Timing Chain Re-Install & Head Gasket Re-install Feedback........
  61. '98 deville idle
  62. intake kit
  63. WOT advice
  64. SeaFoam Opinions...
  65. GXP-ify my sts?
  66. caprice vs Seville sts
  67. water pump/thermostat crossover housing leaking again
  68. Oil in spark plug chamber, How Bad Is This?
  69. Bizarre Coolant- A/C problem 98 Deville!!!
  70. Anybody got a stock calpack?
  71. Question about climate control.
  72. Remanufactured Northstar Engine
  73. 98 eldo jerking while stopped
  74. Dex Cool.....What going on?
  75. Compression test results 98 Seville
  76. Failed emissions test
  77. just bought 97 eldo std.
  78. Cylinder rings blown on 18 thousand miles??? (cylinder nr 8 totally w/o compression)
  79. Low Coolant Level
  80. Alternative to Platinum Plugs?
  81. Cylinder rings blown on 18 thousand miles??? (cylinder nr 8 totally w/o compression)
  82. Northstar oilpan
  83. 95 deville blown head gasket
  84. 3 qts oil in 3000 miles?
  85. 5% discount on parts!
  86. Things I should do when changing engines
  87. egr bench test / disassembly ?
  88. '98 cam to waterpump belt
  89. direct flow air filter intake
  90. belt
  91. Transmission Problem Not Sure Need Help Bad!!!!!!!
  92. Dex Cool is eating the gaskets?!!!
  93. 2003 SLS ECM code: DTC "P0300
  94. Cleaning fuel injectors
  95. Oversize pistons? Undersize bearings?
  96. HeadGasket
  97. oil smoke -- any suggestions?
  98. New to North stars
  99. AC 41-900 Replaced with the 41-950 plug
  100. Long Crankin
  101. egr valve test?
  102. AC Compressor changeout - success -
  103. Oil Question
  104. Question about the EGR valve
  105. My oil drain plug magnet is missing
  106. Code P1350
  107. aftermarket catalytic converter
  108. 93 STS starting problem
  109. N*--Built by ISUZU????
  110. Few STS questions..engine, suspension??
  111. Average Cost to replace Tranny on N*?
  112. Buying the Juice....
  113. Oil Residue/grease on section of Air filter on 96 N* Why?
  114. Oil level sensor (check oil level)
  115. loud noise in valve cover ?
  116. not licking to stop and slight oil leak
  117. Cracked oil pan...
  118. Magnaflow Hi Flow Cats
  119. Main Acc Drivebelt - Whine & Grind Noises
  120. a few questions i have.
  121. ZDP Right ? Bad ?
  122. Crossover changed, now smoking anit-freeze?
  123. P036 Since changing crossover
  124. Boggy Accel
  125. references for understanding the N*?
  126. Vapor lock
  127. Torque Sequence and Lbs for NStar Heads BBob??
  128. Water Pump Housing
  129. Best High-flow cat
  130. the Northstar and cams???
  131. motor swap 94 to 97 Relocation of air sensor
  132. Quick Question
  133. Probly Not a New Question - Oil Pan Leak
  134. starting problem
  135. Idle surging
  136. Northstar Help
  137. Crank Position Sensor Symptoms and Replacement
  138. Water Pump ?
  139. RWD Northstar? Gofast Parts?
  140. My Idea!!!!!!
  141. Main thread pulled out
  142. Tranny trouble again.
  143. 00 DTS - Starting issue
  144. Timesert or not?
  145. 2000 N* into a '96 DeVille?
  146. Run mid-grade every other tank?
  147. P0741 & P1860
  148. How warm do I warm my car up?
  149. Exhaust manifolds: removed with engine in place?
  150. Burning Coolant
  151. Performance questions!!!!
  152. Regular fuel change ecm program
  153. TCS C1233 and ignition problem? 97 SLS
  154. Remote mirror removal & repair questions
  155. Where is my gas filter? 97 STS
  156. Oil Burning Eldo, 1997 Etc..
  157. Northstar Intermittent misfire-Pulling hair out!!
  158. 96 concours code help!!
  159. Performance chips...scam?
  160. Some unanswered throttle body cleaning questions
  161. 1996 sts - "NO IRC DATA"
  162. 1996 DeVille won't start
  163. EGR valve removal.. need a bit of help
  164. lift
  165. Bbob - a leason on sealers, please!
  166. Need Options...coolant blowing out...
  167. Code P0335 on 2001 STS
  168. benlomand
  169. Possible Main Bearing Knock....what to do?
  170. ***********
  171. compression check out of car
  172. n* check coolant level on 97 deville
  173. BBob need help
  174. Air intake "twister"?
  175. smell coolant? check freezeplugs
  176. Help with PC0174 code
  177. rss c1769 code.. help !
  178. NorthStar Reputation..
  179. RTD means??
  180. 1996 SLS Won't Disengage Parking brake when put into gear?
  181. LD8 L37 comparison...which is really quicker?
  182. N* coolant problem
  183. Does A Northstar Have Mds?
  184. thanks to bbob, ranger, etc.
  185. What's up with the new "Universal" coolant? (Bbob?)
  186. I'm being ROBBED! (of hp)
  187. using non-GM spark plug wires?
  188. How many have blown Northstars
  189. Water Pump Replacement
  190. CD-ROM Service Manuals
  191. HELP: BPTB, AC compressor
  192. Replaced A And B Shift Still Actin Funny
  193. p094 code - where is the soleniod located?
  194. service vehicle soon !!!!!!
  195. Help with removing Northstar coolant crossover
  196. error code
  197. supercharger??
  198. OK, who else needs a timesert kit????
  199. Can the Northstar be rebuilt?
  200. Using oil....but where?
  201. VIN Code "9"
  202. Head gasket and mileage...
  203. 96 Eldorado trouble code PC 0420...
  204. My First problem with my 2001 DTS if anyone can help?
  205. 97 deville cooling system
  206. air bag
  207. Dead #1 - Stumped & DisCUSSeded!
  208. Where exactly are the B1S2, B2S1, and B1S3 O2 sensors located?
  209. Northstar Head Gasket.. What Parts Needed???
  210. 94 concours rough idle when hot
  211. Where does a coolant change go into?
  212. Oil Pump - how to inspect and test out of engine
  213. Possible for Trans. Solenoids not to show a code?
  214. Code AC1348 on 1996 seville SlS what does it mean?
  215. AAA Extended Warranty
  216. Technical Service Bulletins
  217. 94 concours, test your knowledge
  218. My car Quacks
  219. 1996 SLS Transmission Reluctant/Studders to go to Overdrive Ideas?
  220. s/s fuel rail removal to get to EGR...
  221. Transmission codes
  222. Which pistons can and should I use
  223. Fastest NORTHSTAR
  224. changing out serpentine tensioner
  225. Service engine soon light-94 concours
  226. High Oil Consumption, Pulled Headbolts, Blown Head Gaskets, Bars Leak, Unstable Temps
  227. Motor Oil Choice
  228. Finding coolant leak...need help
  229. Oil Under Intake 94 Northstar
  230. Engine Coolant Temperature 190-201 F
  231. Engine misfire/stall codes
  232. How do I clear codes?
  233. '95 SLS high idling temperature
  234. Right Milage?
  235. Removing the dowels
  236. What is normal engine temp for the northstar?
  237. What mods is available for my 94 SLS ???
  238. Is There a Bar’s Leak pellet usage limit???
  239. oil pressure low...engine getting hotter
  240. Replacing Belt Idler & belt - HELP!
  241. Head bolts & time-serts?
  242. Fuel filter R&r
  243. 98 SLS Overheating in minutes
  244. 96 deville fuel pressure regulator?
  245. blower motor control issues
  246. '96 Deville SES light on and hard to start
  247. Where can i find a supercharger
  248. Northstar Engine assembly - instructions
  249. 4T80E down shifting RPM 4000
  250. coolant leak