: Northstar Engines and System Technical Discussion



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