: Northstar Engines and System Technical Discussion



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