: Northstar Engines and System Technical Discussion



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  1. 2003 SLS ECM code: DTC "P0300
  2. Cleaning fuel injectors
  3. Oversize pistons? Undersize bearings?
  4. HeadGasket
  5. oil smoke -- any suggestions?
  6. New to North stars
  7. AC 41-900 Replaced with the 41-950 plug
  8. Long Crankin
  9. egr valve test?
  10. AC Compressor changeout - success -
  11. Oil Question
  12. Question about the EGR valve
  13. My oil drain plug magnet is missing
  14. Code P1350
  15. aftermarket catalytic converter
  16. 93 STS starting problem
  17. N*--Built by ISUZU????
  18. Few STS questions..engine, suspension??
  19. Average Cost to replace Tranny on N*?
  20. Buying the Juice....
  21. Oil Residue/grease on section of Air filter on 96 N* Why?
  22. Oil level sensor (check oil level)
  23. loud noise in valve cover ?
  24. not licking to stop and slight oil leak
  25. Cracked oil pan...
  26. Magnaflow Hi Flow Cats
  27. Main Acc Drivebelt - Whine & Grind Noises
  28. a few questions i have.
  29. ZDP Right ? Bad ?
  30. Crossover changed, now smoking anit-freeze?
  31. P036 Since changing crossover
  32. Boggy Accel
  33. references for understanding the N*?
  34. Vapor lock
  35. Torque Sequence and Lbs for NStar Heads BBob??
  36. Water Pump Housing
  37. Best High-flow cat
  38. the Northstar and cams???
  39. motor swap 94 to 97 Relocation of air sensor
  40. Quick Question
  41. Probly Not a New Question - Oil Pan Leak
  42. starting problem
  43. Idle surging
  44. Northstar Help
  45. Crank Position Sensor Symptoms and Replacement
  46. Water Pump ?
  47. RWD Northstar? Gofast Parts?
  48. My Idea!!!!!!
  49. Main thread pulled out
  50. Tranny trouble again.
  51. 00 DTS - Starting issue
  52. Timesert or not?
  53. 2000 N* into a '96 DeVille?
  54. Run mid-grade every other tank?
  55. P0741 & P1860
  56. How warm do I warm my car up?
  57. Exhaust manifolds: removed with engine in place?
  58. Burning Coolant
  59. Performance questions!!!!
  60. Regular fuel change ecm program
  61. TCS C1233 and ignition problem? 97 SLS
  62. Remote mirror removal & repair questions
  63. Where is my gas filter? 97 STS
  64. Oil Burning Eldo, 1997 Etc..
  65. Northstar Intermittent misfire-Pulling hair out!!
  66. 96 concours code help!!
  67. Performance chips...scam?
  68. Some unanswered throttle body cleaning questions
  69. 1996 sts - "NO IRC DATA"
  70. 1996 DeVille won't start
  71. EGR valve removal.. need a bit of help
  72. lift
  73. Bbob - a leason on sealers, please!
  74. Need Options...coolant blowing out...
  75. Code P0335 on 2001 STS
  76. benlomand
  77. Possible Main Bearing Knock....what to do?
  78. ***********
  79. compression check out of car
  80. n* check coolant level on 97 deville
  81. BBob need help
  82. Air intake "twister"?
  83. smell coolant? check freezeplugs
  84. Help with PC0174 code
  85. rss c1769 code.. help !
  86. NorthStar Reputation..
  87. RTD means??
  88. 1996 SLS Won't Disengage Parking brake when put into gear?
  89. LD8 L37 comparison...which is really quicker?
  90. N* coolant problem
  91. Does A Northstar Have Mds?
  92. thanks to bbob, ranger, etc.
  93. What's up with the new "Universal" coolant? (Bbob?)
  94. I'm being ROBBED! (of hp)
  95. using non-GM spark plug wires?
  96. How many have blown Northstars
  97. Water Pump Replacement
  98. CD-ROM Service Manuals
  99. HELP: BPTB, AC compressor
  100. Replaced A And B Shift Still Actin Funny
  101. p094 code - where is the soleniod located?
  102. service vehicle soon !!!!!!
  103. Help with removing Northstar coolant crossover
  104. error code
  105. supercharger??
  106. OK, who else needs a timesert kit????
  107. Can the Northstar be rebuilt?
  108. Using oil....but where?
  109. VIN Code "9"
  110. Head gasket and mileage...
  111. 96 Eldorado trouble code PC 0420...
  112. My First problem with my 2001 DTS if anyone can help?
  113. 97 deville cooling system
  114. air bag
  115. Dead #1 - Stumped & DisCUSSeded!
  116. Where exactly are the B1S2, B2S1, and B1S3 O2 sensors located?
  117. Northstar Head Gasket.. What Parts Needed???
  118. 94 concours rough idle when hot
  119. Where does a coolant change go into?
  120. Oil Pump - how to inspect and test out of engine
  121. Possible for Trans. Solenoids not to show a code?
  122. Code AC1348 on 1996 seville SlS what does it mean?
  123. AAA Extended Warranty
  124. Technical Service Bulletins
  125. 94 concours, test your knowledge
  126. My car Quacks
  127. 1996 SLS Transmission Reluctant/Studders to go to Overdrive Ideas?
  128. s/s fuel rail removal to get to EGR...
  129. Transmission codes
  130. Which pistons can and should I use
  131. Fastest NORTHSTAR
  132. changing out serpentine tensioner
  133. Service engine soon light-94 concours
  134. High Oil Consumption, Pulled Headbolts, Blown Head Gaskets, Bars Leak, Unstable Temps
  135. Motor Oil Choice
  136. Finding coolant leak...need help
  137. Oil Under Intake 94 Northstar
  138. Engine Coolant Temperature 190-201 F
  139. Engine misfire/stall codes
  140. How do I clear codes?
  141. '95 SLS high idling temperature
  142. Right Milage?
  143. Removing the dowels
  144. What is normal engine temp for the northstar?
  145. What mods is available for my 94 SLS ???
  146. Is There a Bar’s Leak pellet usage limit???
  147. oil pressure low...engine getting hotter
  148. Replacing Belt Idler & belt - HELP!
  149. Head bolts & time-serts?
  150. Fuel filter R&r
  151. 98 SLS Overheating in minutes
  152. 96 deville fuel pressure regulator?
  153. blower motor control issues
  154. '96 Deville SES light on and hard to start
  155. Where can i find a supercharger
  156. Northstar Engine assembly - instructions
  157. 4T80E down shifting RPM 4000
  158. coolant leak
  159. Low Oil Pressure???
  160. Bar's Leaks "Head Gasket Repair"
  161. 96 Deville No Start condition, help
  162. 94 N* swap in 96 Eldo
  163. Preventing head gasket and cooling system failures...
  164. Engine oil life % - Who uses it?
  165. GM Dealer Coolant Procedure?
  166. Another Coolant Question
  167. Oil Additives... BBOB?? and others....
  168. 98 deville ses lights
  169. can '98 Northstar be tuned to take Regular Gas?
  170. gas in oil
  171. engine code 9 with a trouble code 53.
  172. 2001 eldorado engine quits momentarily
  173. 2002 Escalade 70k miles QUESTIONS???
  174. Re-Set Codes
  175. Codes and Coolant Mistery, Hesitation
  176. Synth ATF
  177. Check engine light
  178. Code Buttons
  179. EGR removal on 1997 seville w/ northstar?
  180. northstar 32v V8 2001 eldorado engine
  181. Engine wont rev Bad Tranny
  182. 4t80E will not shift into third
  183. Installed Magnaflows.........
  184. P039 VCC Lockup Problem: Read Archives, Still Have Questions
  185. EGR Trouble HELP???
  186. OBD? DTC? How do I access these?
  187. Heater hoses
  188. Heater hoses
  189. Radiator tablets redux
  190. "CHECK COOLANT LEVEL" 14 months after fluid change
  191. what does this code pertain to? pc0153 current
  192. i need help with my deville
  193. what is wrong with my 1996 deville
  194. Little green hoses
  195. DTS MODs?
  196. Trouble Codes and Car Shuddering
  197. EBTCM traction control module
  198. will purchase 98 Eldo ETC... who should inspect/work on car? EXT Warranty Info help
  199. Read This, Need Help!!! Egr??? Fpr???
  200. 98 deville
  201. Eldo Mods? chip, exhaust, nos, ect.
  202. 3 more radiator queries
  203. 2 more radiator drain queries
  204. Transmission Pressuse Solenoid
  205. 95 Concours Put Barsleak in canister
  206. 96 Deville codes pco603 and pco717
  207. Reset codes?
  208. "Flush" coolant?
  209. ETCBM (traction control computer)
  210. 1996 DeVille Northstar
  211. Motor mount help needed!
  212. 1994 STS First Roadtrip Coolant Temp
  213. Break In Oil
  214. question about N* headgasket
  215. trans code
  216. No 4th gear...
  217. 02 sensor
  218. Northstar longevity! 323,000 miles!
  219. 95 Seville SLS Major Problems
  220. Found the SES P102 issue! Now A/C issue
  221. TPS and/or EGR needed?
  222. OBDII diagnostic codes
  223. P0102/B1009/U1301 and others HELP!!!
  224. Max throtle angle
  225. Throttle Position Sensor relearn
  226. Original or swapped N*
  227. New cdes!!!!
  228. 1995 Concours, Fuel injector size?
  229. Reading .Bins from proms?
  230. Coolant changed to green... problem?
  231. Northstar Rebuild --- Chime In, I have questions...
  232. Preventive Maintenance While Engines Out
  233. burn out? burn not.
  234. Removing Heli-coils
  235. DIC items???
  236. cost?
  237. Oil Cooler Lines
  238. Smell Coolant but from what?
  239. VIN and Performance Questions
  240. Small coolant leak
  241. check engine soon
  242. 1994 Northstar Swap
  243. Bbob, Purging/exchanging tranny fluid
  244. Rough running 2000 Seville
  245. northstar motor swap
  246. oil pan gasket change
  247. 4T80E hard shift
  248. black box under car????
  249. 93 eldorado
  250. 1987 Deville Stereo Question, Please help?