: Northstar Engines and System Technical Discussion



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