: Northstar Engines and System Technical Discussion



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  1. Where exactly are the B1S2, B2S1, and B1S3 O2 sensors located?
  2. Northstar Head Gasket.. What Parts Needed???
  3. 94 concours rough idle when hot
  4. Where does a coolant change go into?
  5. Oil Pump - how to inspect and test out of engine
  6. Possible for Trans. Solenoids not to show a code?
  7. Code AC1348 on 1996 seville SlS what does it mean?
  8. AAA Extended Warranty
  9. Technical Service Bulletins
  10. 94 concours, test your knowledge
  11. My car Quacks
  12. 1996 SLS Transmission Reluctant/Studders to go to Overdrive Ideas?
  13. s/s fuel rail removal to get to EGR...
  14. Transmission codes
  15. Which pistons can and should I use
  16. Fastest NORTHSTAR
  17. changing out serpentine tensioner
  18. Service engine soon light-94 concours
  19. High Oil Consumption, Pulled Headbolts, Blown Head Gaskets, Bars Leak, Unstable Temps
  20. Motor Oil Choice
  21. Finding coolant leak...need help
  22. Oil Under Intake 94 Northstar
  23. Engine Coolant Temperature 190-201 F
  24. Engine misfire/stall codes
  25. How do I clear codes?
  26. '95 SLS high idling temperature
  27. Right Milage?
  28. Removing the dowels
  29. What is normal engine temp for the northstar?
  30. What mods is available for my 94 SLS ???
  31. Is There a Bar’s Leak pellet usage limit???
  32. oil pressure low...engine getting hotter
  33. Replacing Belt Idler & belt - HELP!
  34. Head bolts & time-serts?
  35. Fuel filter R&r
  36. 98 SLS Overheating in minutes
  37. 96 deville fuel pressure regulator?
  38. blower motor control issues
  39. '96 Deville SES light on and hard to start
  40. Where can i find a supercharger
  41. Northstar Engine assembly - instructions
  42. 4T80E down shifting RPM 4000
  43. coolant leak
  44. Low Oil Pressure???
  45. Bar's Leaks "Head Gasket Repair"
  46. 96 Deville No Start condition, help
  47. 94 N* swap in 96 Eldo
  48. Preventing head gasket and cooling system failures...
  49. Engine oil life % - Who uses it?
  50. GM Dealer Coolant Procedure?
  51. Another Coolant Question
  52. Oil Additives... BBOB?? and others....
  53. 98 deville ses lights
  54. can '98 Northstar be tuned to take Regular Gas?
  55. gas in oil
  56. engine code 9 with a trouble code 53.
  57. 2001 eldorado engine quits momentarily
  58. 2002 Escalade 70k miles QUESTIONS???
  59. Re-Set Codes
  60. Codes and Coolant Mistery, Hesitation
  61. Synth ATF
  62. Check engine light
  63. Code Buttons
  64. EGR removal on 1997 seville w/ northstar?
  65. northstar 32v V8 2001 eldorado engine
  66. Engine wont rev Bad Tranny
  67. 4t80E will not shift into third
  68. Installed Magnaflows.........
  69. P039 VCC Lockup Problem: Read Archives, Still Have Questions
  70. EGR Trouble HELP???
  71. OBD? DTC? How do I access these?
  72. Heater hoses
  73. Heater hoses
  74. Radiator tablets redux
  75. "CHECK COOLANT LEVEL" 14 months after fluid change
  76. what does this code pertain to? pc0153 current
  77. i need help with my deville
  78. what is wrong with my 1996 deville
  79. Little green hoses
  80. DTS MODs?
  81. Trouble Codes and Car Shuddering
  82. EBTCM traction control module
  83. will purchase 98 Eldo ETC... who should inspect/work on car? EXT Warranty Info help
  84. Read This, Need Help!!! Egr??? Fpr???
  85. 98 deville
  86. Eldo Mods? chip, exhaust, nos, ect.
  87. 3 more radiator queries
  88. 2 more radiator drain queries
  89. Transmission Pressuse Solenoid
  90. 95 Concours Put Barsleak in canister
  91. 96 Deville codes pco603 and pco717
  92. Reset codes?
  93. "Flush" coolant?
  94. ETCBM (traction control computer)
  95. 1996 DeVille Northstar
  96. Motor mount help needed!
  97. 1994 STS First Roadtrip Coolant Temp
  98. Break In Oil
  99. question about N* headgasket
  100. trans code
  101. No 4th gear...
  102. 02 sensor
  103. Northstar longevity! 323,000 miles!
  104. 95 Seville SLS Major Problems
  105. Found the SES P102 issue! Now A/C issue
  106. TPS and/or EGR needed?
  107. OBDII diagnostic codes
  108. P0102/B1009/U1301 and others HELP!!!
  109. Max throtle angle
  110. Throttle Position Sensor relearn
  111. Original or swapped N*
  112. New cdes!!!!
  113. 1995 Concours, Fuel injector size?
  114. Reading .Bins from proms?
  115. Coolant changed to green... problem?
  116. Northstar Rebuild --- Chime In, I have questions...
  117. Preventive Maintenance While Engines Out
  118. burn out? burn not.
  119. Removing Heli-coils
  120. DIC items???
  121. cost?
  122. Oil Cooler Lines
  123. Smell Coolant but from what?
  124. VIN and Performance Questions
  125. Small coolant leak
  126. check engine soon
  127. 1994 Northstar Swap
  128. Bbob, Purging/exchanging tranny fluid
  129. Rough running 2000 Seville
  130. northstar motor swap
  131. oil pan gasket change
  132. 4T80E hard shift
  133. black box under car????
  134. 93 eldorado
  135. 1987 Deville Stereo Question, Please help?
  136. Fuel Injector
  137. Car jerking in 3rd gear
  138. 98 Northstar Motor Whistle
  139. Head Bolts, fixed by what year?
  140. Good repair shop in DC/MD/VA area
  141. 2001 Cracked block??
  142. rough idle at start-up
  143. Chronic miss in 4.6L Northstar
  144. Engine Cold/Knock/Tick Noise (Replace Pistons)
  145. Question for OBD1 Guys: Can you pop an eprom out of your ECM?
  146. Performance Upgrades?
  147. 02 sensor
  148. service eng light when heat turned on
  149. Won't start - Inconsistent compression
  150. L37 vs LD8, actual differences?
  151. Need Help Please!!!
  152. High charging voltage, stumped?
  153. No start on cold days?
  154. Dealer Diagnosis - $3000 BS??
  155. has anyone had a problem with 98 sls dieing at a low idle?
  156. ABS - Traction Control
  157. help with codes please
  158. High performance ignition?
  159. Northstar Performance Enhacements?
  160. Power LOSS
  161. Has anybody done a S/C northstar yet?
  162. PCM P1153: 02 Sensor Insufficient Switching, PLEASE HELP
  163. Traction Control Problem
  164. Bobbyinski -- Northstar failure
  165. Cold Engine Misfire
  166. DTCs from my flood car - help with diagnosis
  167. PCM code????
  168. how to pull dic codes?
  169. Dealer Installed Timesert Question
  170. 99 deville sounds/runs awful
  171. Oil pan gasket
  172. n.star water pump removal & install how-to
  173. Thinking of buying a Snap-On MT2500, any thoughts?
  174. Crankcase scrap rate.
  175. what years are compatible with my 93 STS?
  176. Aaaaagh! I should'v know better,
  177. Headlights wont cut off
  178. 2000+ engine in 1998 possible maybe?
  179. Service Engine Light Codes...Please Help
  180. Severe lack of performance
  181. Chk Emmisions/Chk Engine/Rough/Smelly
  182. code tc 0073 ?
  183. Leaking Radiator fixed
  184. RPM Surge at startup
  185. Engine Running Hot..239 at shut off
  186. 2000 deville clicking noise
  187. 1994 sts Idles @ 2-3 thousand RPM
  188. engine dies frequently-pc0231 the problem?
  189. Is this head gasket, or ? ? ?
  190. 94 Eldorado rough at slow speeds
  191. Particulars of VVT?
  192. Rough idle on cold start-up
  193. 5 reasons I LOVE my '94 n* DeVille
  194. Check Coolant Level after Water Pump R/R
  195. Engine Temperature
  196. MAT sensor, MAP sensor....
  197. Problems After Head Gasket Replacement...
  198. 98 Eldo running rough
  199. weight of the 4.6 northstar
  200. Computer programmer
  201. bent #1 con-rod 4.6 N* no signs!!?
  202. Oil leak?
  203. Thermostat sticking open?
  204. Volant Air Intake?
  205. Please Help With Problem On My Deville
  206. My new caddy...
  207. 4.6 litre dual turbo Northstar project, engine only?
  208. Oil pressure problem
  209. waterpump in a 98 Deville
  210. 93 STS Crank Position Sensors
  211. I need info!!!!
  212. high rpm northstar
  213. Misfire and SES light
  214. codes
  215. Rev Limiter in Park and Neutral??
  216. On Board diag?
  217. ? for Bbob re: engine designations
  218. Whats YOUR winter project?
  219. STS High Idle
  220. oil level message
  221. New member
  222. traction control light
  223. Engine "missing" during acceleration
  224. Vibration
  225. Repair cost
  226. Original v. New plug wires
  227. 94 Eldo Northstar No Spark - Why?
  228. Why is the left bank now the right bank?
  229. 1994 Northstar noise
  230. Question about Corsa exhaust
  231. Dont change my ATF???? Please Help!!!!
  232. "NEW" Northstar?
  233. 97 DeVille oil leak
  234. Cabin air filter
  235. Top Speed Reached - Fuel Pump Shutoff at 105mph?
  236. Northstar ?s
  237. Spark Plugs
  238. Head Gasket Problem
  239. concours will not crank in cold weather
  240. ShortStar 3.5L oil usage
  241. Dealer Fuel Injection and Carbon Treatment
  242. AC-Delco part vs Cadillac
  243. Transmission Q? What would you do.
  244. Northstar CAD drawings ???
  245. Please Help with Instructions to Replace radiator
  246. Anybody notice? Bbob - not driving a Caddy?!
  247. Got codes P0201 P0204 P0206 P0207 P0300
  248. Is around town driving in 3rd OK?
  249. Fuel In Intake Manifold
  250. Aftermarker engine computers