: Northstar Engines and System Technical Discussion



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  1. intake kit
  2. WOT advice
  3. SeaFoam Opinions...
  4. GXP-ify my sts?
  5. caprice vs Seville sts
  6. water pump/thermostat crossover housing leaking again
  7. Oil in spark plug chamber, How Bad Is This?
  8. Bizarre Coolant- A/C problem 98 Deville!!!
  9. Anybody got a stock calpack?
  10. Question about climate control.
  11. Remanufactured Northstar Engine
  12. 98 eldo jerking while stopped
  13. Dex Cool.....What going on?
  14. Compression test results 98 Seville
  15. Failed emissions test
  16. just bought 97 eldo std.
  17. Cylinder rings blown on 18 thousand miles??? (cylinder nr 8 totally w/o compression)
  18. Low Coolant Level
  19. Alternative to Platinum Plugs?
  20. Cylinder rings blown on 18 thousand miles??? (cylinder nr 8 totally w/o compression)
  21. Northstar oilpan
  22. 95 deville blown head gasket
  23. 3 qts oil in 3000 miles?
  24. 5% discount on parts!
  25. Things I should do when changing engines
  26. egr bench test / disassembly ?
  27. '98 cam to waterpump belt
  28. direct flow air filter intake
  29. belt
  30. Transmission Problem Not Sure Need Help Bad!!!!!!!
  31. Dex Cool is eating the gaskets?!!!
  32. 2003 SLS ECM code: DTC "P0300
  33. Cleaning fuel injectors
  34. Oversize pistons? Undersize bearings?
  35. HeadGasket
  36. oil smoke -- any suggestions?
  37. New to North stars
  38. AC 41-900 Replaced with the 41-950 plug
  39. Long Crankin
  40. egr valve test?
  41. AC Compressor changeout - success -
  42. Oil Question
  43. Question about the EGR valve
  44. My oil drain plug magnet is missing
  45. Code P1350
  46. aftermarket catalytic converter
  47. 93 STS starting problem
  48. N*--Built by ISUZU????
  49. Few STS questions..engine, suspension??
  50. Average Cost to replace Tranny on N*?
  51. Buying the Juice....
  52. Oil Residue/grease on section of Air filter on 96 N* Why?
  53. Oil level sensor (check oil level)
  54. loud noise in valve cover ?
  55. not licking to stop and slight oil leak
  56. Cracked oil pan...
  57. Magnaflow Hi Flow Cats
  58. Main Acc Drivebelt - Whine & Grind Noises
  59. a few questions i have.
  60. ZDP Right ? Bad ?
  61. Crossover changed, now smoking anit-freeze?
  62. P036 Since changing crossover
  63. Boggy Accel
  64. references for understanding the N*?
  65. Vapor lock
  66. Torque Sequence and Lbs for NStar Heads BBob??
  67. Water Pump Housing
  68. Best High-flow cat
  69. the Northstar and cams???
  70. motor swap 94 to 97 Relocation of air sensor
  71. Quick Question
  72. Probly Not a New Question - Oil Pan Leak
  73. starting problem
  74. Idle surging
  75. Northstar Help
  76. Crank Position Sensor Symptoms and Replacement
  77. Water Pump ?
  78. RWD Northstar? Gofast Parts?
  79. My Idea!!!!!!
  80. Main thread pulled out
  81. Tranny trouble again.
  82. 00 DTS - Starting issue
  83. Timesert or not?
  84. 2000 N* into a '96 DeVille?
  85. Run mid-grade every other tank?
  86. P0741 & P1860
  87. How warm do I warm my car up?
  88. Exhaust manifolds: removed with engine in place?
  89. Burning Coolant
  90. Performance questions!!!!
  91. Regular fuel change ecm program
  92. TCS C1233 and ignition problem? 97 SLS
  93. Remote mirror removal & repair questions
  94. Where is my gas filter? 97 STS
  95. Oil Burning Eldo, 1997 Etc..
  96. Northstar Intermittent misfire-Pulling hair out!!
  97. 96 concours code help!!
  98. Performance chips...scam?
  99. Some unanswered throttle body cleaning questions
  100. 1996 sts - "NO IRC DATA"
  101. 1996 DeVille won't start
  102. EGR valve removal.. need a bit of help
  103. lift
  104. Bbob - a leason on sealers, please!
  105. Need Options...coolant blowing out...
  106. Code P0335 on 2001 STS
  107. benlomand
  108. Possible Main Bearing Knock....what to do?
  109. ***********
  110. compression check out of car
  111. n* check coolant level on 97 deville
  112. BBob need help
  113. Air intake "twister"?
  114. smell coolant? check freezeplugs
  115. Help with PC0174 code
  116. rss c1769 code.. help !
  117. NorthStar Reputation..
  118. RTD means??
  119. 1996 SLS Won't Disengage Parking brake when put into gear?
  120. LD8 L37 comparison...which is really quicker?
  121. N* coolant problem
  122. Does A Northstar Have Mds?
  123. thanks to bbob, ranger, etc.
  124. What's up with the new "Universal" coolant? (Bbob?)
  125. I'm being ROBBED! (of hp)
  126. using non-GM spark plug wires?
  127. How many have blown Northstars
  128. Water Pump Replacement
  129. CD-ROM Service Manuals
  130. HELP: BPTB, AC compressor
  131. Replaced A And B Shift Still Actin Funny
  132. p094 code - where is the soleniod located?
  133. service vehicle soon !!!!!!
  134. Help with removing Northstar coolant crossover
  135. error code
  136. supercharger??
  137. OK, who else needs a timesert kit????
  138. Can the Northstar be rebuilt?
  139. Using oil....but where?
  140. VIN Code "9"
  141. Head gasket and mileage...
  142. 96 Eldorado trouble code PC 0420...
  143. My First problem with my 2001 DTS if anyone can help?
  144. 97 deville cooling system
  145. air bag
  146. Dead #1 - Stumped & DisCUSSeded!
  147. Where exactly are the B1S2, B2S1, and B1S3 O2 sensors located?
  148. Northstar Head Gasket.. What Parts Needed???
  149. 94 concours rough idle when hot
  150. Where does a coolant change go into?
  151. Oil Pump - how to inspect and test out of engine
  152. Possible for Trans. Solenoids not to show a code?
  153. Code AC1348 on 1996 seville SlS what does it mean?
  154. AAA Extended Warranty
  155. Technical Service Bulletins
  156. 94 concours, test your knowledge
  157. My car Quacks
  158. 1996 SLS Transmission Reluctant/Studders to go to Overdrive Ideas?
  159. s/s fuel rail removal to get to EGR...
  160. Transmission codes
  161. Which pistons can and should I use
  162. Fastest NORTHSTAR
  163. changing out serpentine tensioner
  164. Service engine soon light-94 concours
  165. High Oil Consumption, Pulled Headbolts, Blown Head Gaskets, Bars Leak, Unstable Temps
  166. Motor Oil Choice
  167. Finding coolant leak...need help
  168. Oil Under Intake 94 Northstar
  169. Engine Coolant Temperature 190-201 F
  170. Engine misfire/stall codes
  171. How do I clear codes?
  172. '95 SLS high idling temperature
  173. Right Milage?
  174. Removing the dowels
  175. What is normal engine temp for the northstar?
  176. What mods is available for my 94 SLS ???
  177. Is There a Bar’s Leak pellet usage limit???
  178. oil pressure low...engine getting hotter
  179. Replacing Belt Idler & belt - HELP!
  180. Head bolts & time-serts?
  181. Fuel filter R&r
  182. 98 SLS Overheating in minutes
  183. 96 deville fuel pressure regulator?
  184. blower motor control issues
  185. '96 Deville SES light on and hard to start
  186. Where can i find a supercharger
  187. Northstar Engine assembly - instructions
  188. 4T80E down shifting RPM 4000
  189. coolant leak
  190. Low Oil Pressure???
  191. Bar's Leaks "Head Gasket Repair"
  192. 96 Deville No Start condition, help
  193. 94 N* swap in 96 Eldo
  194. Preventing head gasket and cooling system failures...
  195. Engine oil life % - Who uses it?
  196. GM Dealer Coolant Procedure?
  197. Another Coolant Question
  198. Oil Additives... BBOB?? and others....
  199. 98 deville ses lights
  200. can '98 Northstar be tuned to take Regular Gas?
  201. gas in oil
  202. engine code 9 with a trouble code 53.
  203. 2001 eldorado engine quits momentarily
  204. 2002 Escalade 70k miles QUESTIONS???
  205. Re-Set Codes
  206. Codes and Coolant Mistery, Hesitation
  207. Synth ATF
  208. Check engine light
  209. Code Buttons
  210. EGR removal on 1997 seville w/ northstar?
  211. northstar 32v V8 2001 eldorado engine
  212. Engine wont rev Bad Tranny
  213. 4t80E will not shift into third
  214. Installed Magnaflows.........
  215. P039 VCC Lockup Problem: Read Archives, Still Have Questions
  216. EGR Trouble HELP???
  217. OBD? DTC? How do I access these?
  218. Heater hoses
  219. Heater hoses
  220. Radiator tablets redux
  221. "CHECK COOLANT LEVEL" 14 months after fluid change
  222. what does this code pertain to? pc0153 current
  223. i need help with my deville
  224. what is wrong with my 1996 deville
  225. Little green hoses
  226. DTS MODs?
  227. Trouble Codes and Car Shuddering
  228. EBTCM traction control module
  229. will purchase 98 Eldo ETC... who should inspect/work on car? EXT Warranty Info help
  230. Read This, Need Help!!! Egr??? Fpr???
  231. 98 deville
  232. Eldo Mods? chip, exhaust, nos, ect.
  233. 3 more radiator queries
  234. 2 more radiator drain queries
  235. Transmission Pressuse Solenoid
  236. 95 Concours Put Barsleak in canister
  237. 96 Deville codes pco603 and pco717
  238. Reset codes?
  239. "Flush" coolant?
  240. ETCBM (traction control computer)
  241. 1996 DeVille Northstar
  242. Motor mount help needed!
  243. 1994 STS First Roadtrip Coolant Temp
  244. Break In Oil
  245. question about N* headgasket
  246. trans code
  247. No 4th gear...
  248. 02 sensor
  249. Northstar longevity! 323,000 miles!
  250. 95 Seville SLS Major Problems