: Northstar Engines and System Technical Discussion



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  1. Oil Burning Eldo, 1997 Etc..
  2. Northstar Intermittent misfire-Pulling hair out!!
  3. 96 concours code help!!
  4. Performance chips...scam?
  5. Some unanswered throttle body cleaning questions
  6. 1996 sts - "NO IRC DATA"
  7. 1996 DeVille won't start
  8. EGR valve removal.. need a bit of help
  9. lift
  10. Bbob - a leason on sealers, please!
  11. Need Options...coolant blowing out...
  12. Code P0335 on 2001 STS
  13. benlomand
  14. Possible Main Bearing Knock....what to do?
  15. ***********
  16. compression check out of car
  17. n* check coolant level on 97 deville
  18. BBob need help
  19. Air intake "twister"?
  20. smell coolant? check freezeplugs
  21. Help with PC0174 code
  22. rss c1769 code.. help !
  23. NorthStar Reputation..
  24. RTD means??
  25. 1996 SLS Won't Disengage Parking brake when put into gear?
  26. LD8 L37 comparison...which is really quicker?
  27. N* coolant problem
  28. Does A Northstar Have Mds?
  29. thanks to bbob, ranger, etc.
  30. What's up with the new "Universal" coolant? (Bbob?)
  31. I'm being ROBBED! (of hp)
  32. using non-GM spark plug wires?
  33. How many have blown Northstars
  34. Water Pump Replacement
  35. CD-ROM Service Manuals
  36. HELP: BPTB, AC compressor
  37. Replaced A And B Shift Still Actin Funny
  38. p094 code - where is the soleniod located?
  39. service vehicle soon !!!!!!
  40. Help with removing Northstar coolant crossover
  41. error code
  42. supercharger??
  43. OK, who else needs a timesert kit????
  44. Can the Northstar be rebuilt?
  45. Using oil....but where?
  46. VIN Code "9"
  47. Head gasket and mileage...
  48. 96 Eldorado trouble code PC 0420...
  49. My First problem with my 2001 DTS if anyone can help?
  50. 97 deville cooling system
  51. air bag
  52. Dead #1 - Stumped & DisCUSSeded!
  53. Where exactly are the B1S2, B2S1, and B1S3 O2 sensors located?
  54. Northstar Head Gasket.. What Parts Needed???
  55. 94 concours rough idle when hot
  56. Where does a coolant change go into?
  57. Oil Pump - how to inspect and test out of engine
  58. Possible for Trans. Solenoids not to show a code?
  59. Code AC1348 on 1996 seville SlS what does it mean?
  60. AAA Extended Warranty
  61. Technical Service Bulletins
  62. 94 concours, test your knowledge
  63. My car Quacks
  64. 1996 SLS Transmission Reluctant/Studders to go to Overdrive Ideas?
  65. s/s fuel rail removal to get to EGR...
  66. Transmission codes
  67. Which pistons can and should I use
  68. Fastest NORTHSTAR
  69. changing out serpentine tensioner
  70. Service engine soon light-94 concours
  71. High Oil Consumption, Pulled Headbolts, Blown Head Gaskets, Bars Leak, Unstable Temps
  72. Motor Oil Choice
  73. Finding coolant leak...need help
  74. Oil Under Intake 94 Northstar
  75. Engine Coolant Temperature 190-201 F
  76. Engine misfire/stall codes
  77. How do I clear codes?
  78. '95 SLS high idling temperature
  79. Right Milage?
  80. Removing the dowels
  81. What is normal engine temp for the northstar?
  82. What mods is available for my 94 SLS ???
  83. Is There a Bar’s Leak pellet usage limit???
  84. oil pressure low...engine getting hotter
  85. Replacing Belt Idler & belt - HELP!
  86. Head bolts & time-serts?
  87. Fuel filter R&r
  88. 98 SLS Overheating in minutes
  89. 96 deville fuel pressure regulator?
  90. blower motor control issues
  91. '96 Deville SES light on and hard to start
  92. Where can i find a supercharger
  93. Northstar Engine assembly - instructions
  94. 4T80E down shifting RPM 4000
  95. coolant leak
  96. Low Oil Pressure???
  97. Bar's Leaks "Head Gasket Repair"
  98. 96 Deville No Start condition, help
  99. 94 N* swap in 96 Eldo
  100. Preventing head gasket and cooling system failures...
  101. Engine oil life % - Who uses it?
  102. GM Dealer Coolant Procedure?
  103. Another Coolant Question
  104. Oil Additives... BBOB?? and others....
  105. 98 deville ses lights
  106. can '98 Northstar be tuned to take Regular Gas?
  107. gas in oil
  108. engine code 9 with a trouble code 53.
  109. 2001 eldorado engine quits momentarily
  110. 2002 Escalade 70k miles QUESTIONS???
  111. Re-Set Codes
  112. Codes and Coolant Mistery, Hesitation
  113. Synth ATF
  114. Check engine light
  115. Code Buttons
  116. EGR removal on 1997 seville w/ northstar?
  117. northstar 32v V8 2001 eldorado engine
  118. Engine wont rev Bad Tranny
  119. 4t80E will not shift into third
  120. Installed Magnaflows.........
  121. P039 VCC Lockup Problem: Read Archives, Still Have Questions
  122. EGR Trouble HELP???
  123. OBD? DTC? How do I access these?
  124. Heater hoses
  125. Heater hoses
  126. Radiator tablets redux
  127. "CHECK COOLANT LEVEL" 14 months after fluid change
  128. what does this code pertain to? pc0153 current
  129. i need help with my deville
  130. what is wrong with my 1996 deville
  131. Little green hoses
  132. DTS MODs?
  133. Trouble Codes and Car Shuddering
  134. EBTCM traction control module
  135. will purchase 98 Eldo ETC... who should inspect/work on car? EXT Warranty Info help
  136. Read This, Need Help!!! Egr??? Fpr???
  137. 98 deville
  138. Eldo Mods? chip, exhaust, nos, ect.
  139. 3 more radiator queries
  140. 2 more radiator drain queries
  141. Transmission Pressuse Solenoid
  142. 95 Concours Put Barsleak in canister
  143. 96 Deville codes pco603 and pco717
  144. Reset codes?
  145. "Flush" coolant?
  146. ETCBM (traction control computer)
  147. 1996 DeVille Northstar
  148. Motor mount help needed!
  149. 1994 STS First Roadtrip Coolant Temp
  150. Break In Oil
  151. question about N* headgasket
  152. trans code
  153. No 4th gear...
  154. 02 sensor
  155. Northstar longevity! 323,000 miles!
  156. 95 Seville SLS Major Problems
  157. Found the SES P102 issue! Now A/C issue
  158. TPS and/or EGR needed?
  159. OBDII diagnostic codes
  160. P0102/B1009/U1301 and others HELP!!!
  161. Max throtle angle
  162. Throttle Position Sensor relearn
  163. Original or swapped N*
  164. New cdes!!!!
  165. 1995 Concours, Fuel injector size?
  166. Reading .Bins from proms?
  167. Coolant changed to green... problem?
  168. Northstar Rebuild --- Chime In, I have questions...
  169. Preventive Maintenance While Engines Out
  170. burn out? burn not.
  171. Removing Heli-coils
  172. DIC items???
  173. cost?
  174. Oil Cooler Lines
  175. Smell Coolant but from what?
  176. VIN and Performance Questions
  177. Small coolant leak
  178. check engine soon
  179. 1994 Northstar Swap
  180. Bbob, Purging/exchanging tranny fluid
  181. Rough running 2000 Seville
  182. northstar motor swap
  183. oil pan gasket change
  184. 4T80E hard shift
  185. black box under car????
  186. 93 eldorado
  187. 1987 Deville Stereo Question, Please help?
  188. Fuel Injector
  189. Car jerking in 3rd gear
  190. 98 Northstar Motor Whistle
  191. Head Bolts, fixed by what year?
  192. Good repair shop in DC/MD/VA area
  193. 2001 Cracked block??
  194. rough idle at start-up
  195. Chronic miss in 4.6L Northstar
  196. Engine Cold/Knock/Tick Noise (Replace Pistons)
  197. Question for OBD1 Guys: Can you pop an eprom out of your ECM?
  198. Performance Upgrades?
  199. 02 sensor
  200. service eng light when heat turned on
  201. Won't start - Inconsistent compression
  202. L37 vs LD8, actual differences?
  203. Need Help Please!!!
  204. High charging voltage, stumped?
  205. No start on cold days?
  206. Dealer Diagnosis - $3000 BS??
  207. has anyone had a problem with 98 sls dieing at a low idle?
  208. ABS - Traction Control
  209. help with codes please
  210. High performance ignition?
  211. Northstar Performance Enhacements?
  212. Power LOSS
  213. Has anybody done a S/C northstar yet?
  214. PCM P1153: 02 Sensor Insufficient Switching, PLEASE HELP
  215. Traction Control Problem
  216. Bobbyinski -- Northstar failure
  217. Cold Engine Misfire
  218. DTCs from my flood car - help with diagnosis
  219. PCM code????
  220. how to pull dic codes?
  221. Dealer Installed Timesert Question
  222. 99 deville sounds/runs awful
  223. Oil pan gasket
  224. n.star water pump removal & install how-to
  225. Thinking of buying a Snap-On MT2500, any thoughts?
  226. Crankcase scrap rate.
  227. what years are compatible with my 93 STS?
  228. Aaaaagh! I should'v know better,
  229. Headlights wont cut off
  230. 2000+ engine in 1998 possible maybe?
  231. Service Engine Light Codes...Please Help
  232. Severe lack of performance
  233. Chk Emmisions/Chk Engine/Rough/Smelly
  234. code tc 0073 ?
  235. Leaking Radiator fixed
  236. RPM Surge at startup
  237. Engine Running Hot..239 at shut off
  238. 2000 deville clicking noise
  239. 1994 sts Idles @ 2-3 thousand RPM
  240. engine dies frequently-pc0231 the problem?
  241. Is this head gasket, or ? ? ?
  242. 94 Eldorado rough at slow speeds
  243. Particulars of VVT?
  244. Rough idle on cold start-up
  245. 5 reasons I LOVE my '94 n* DeVille
  246. Check Coolant Level after Water Pump R/R
  247. Engine Temperature
  248. MAT sensor, MAP sensor....
  249. Problems After Head Gasket Replacement...
  250. 98 Eldo running rough