: Northstar Engines and System Technical Discussion



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  1. Run mid-grade every other tank?
  2. P0741 & P1860
  3. How warm do I warm my car up?
  4. Exhaust manifolds: removed with engine in place?
  5. Burning Coolant
  6. Performance questions!!!!
  7. Regular fuel change ecm program
  8. TCS C1233 and ignition problem? 97 SLS
  9. Remote mirror removal & repair questions
  10. Where is my gas filter? 97 STS
  11. Oil Burning Eldo, 1997 Etc..
  12. Northstar Intermittent misfire-Pulling hair out!!
  13. 96 concours code help!!
  14. Performance chips...scam?
  15. Some unanswered throttle body cleaning questions
  16. 1996 sts - "NO IRC DATA"
  17. 1996 DeVille won't start
  18. EGR valve removal.. need a bit of help
  19. lift
  20. Bbob - a leason on sealers, please!
  21. Need Options...coolant blowing out...
  22. Code P0335 on 2001 STS
  23. benlomand
  24. Possible Main Bearing Knock....what to do?
  25. ***********
  26. compression check out of car
  27. n* check coolant level on 97 deville
  28. BBob need help
  29. Air intake "twister"?
  30. smell coolant? check freezeplugs
  31. Help with PC0174 code
  32. rss c1769 code.. help !
  33. NorthStar Reputation..
  34. RTD means??
  35. 1996 SLS Won't Disengage Parking brake when put into gear?
  36. LD8 L37 comparison...which is really quicker?
  37. N* coolant problem
  38. Does A Northstar Have Mds?
  39. thanks to bbob, ranger, etc.
  40. What's up with the new "Universal" coolant? (Bbob?)
  41. I'm being ROBBED! (of hp)
  42. using non-GM spark plug wires?
  43. How many have blown Northstars
  44. Water Pump Replacement
  45. CD-ROM Service Manuals
  46. HELP: BPTB, AC compressor
  47. Replaced A And B Shift Still Actin Funny
  48. p094 code - where is the soleniod located?
  49. service vehicle soon !!!!!!
  50. Help with removing Northstar coolant crossover
  51. error code
  52. supercharger??
  53. OK, who else needs a timesert kit????
  54. Can the Northstar be rebuilt?
  55. Using oil....but where?
  56. VIN Code "9"
  57. Head gasket and mileage...
  58. 96 Eldorado trouble code PC 0420...
  59. My First problem with my 2001 DTS if anyone can help?
  60. 97 deville cooling system
  61. air bag
  62. Dead #1 - Stumped & DisCUSSeded!
  63. Where exactly are the B1S2, B2S1, and B1S3 O2 sensors located?
  64. Northstar Head Gasket.. What Parts Needed???
  65. 94 concours rough idle when hot
  66. Where does a coolant change go into?
  67. Oil Pump - how to inspect and test out of engine
  68. Possible for Trans. Solenoids not to show a code?
  69. Code AC1348 on 1996 seville SlS what does it mean?
  70. AAA Extended Warranty
  71. Technical Service Bulletins
  72. 94 concours, test your knowledge
  73. My car Quacks
  74. 1996 SLS Transmission Reluctant/Studders to go to Overdrive Ideas?
  75. s/s fuel rail removal to get to EGR...
  76. Transmission codes
  77. Which pistons can and should I use
  78. Fastest NORTHSTAR
  79. changing out serpentine tensioner
  80. Service engine soon light-94 concours
  81. High Oil Consumption, Pulled Headbolts, Blown Head Gaskets, Bars Leak, Unstable Temps
  82. Motor Oil Choice
  83. Finding coolant leak...need help
  84. Oil Under Intake 94 Northstar
  85. Engine Coolant Temperature 190-201 F
  86. Engine misfire/stall codes
  87. How do I clear codes?
  88. '95 SLS high idling temperature
  89. Right Milage?
  90. Removing the dowels
  91. What is normal engine temp for the northstar?
  92. What mods is available for my 94 SLS ???
  93. Is There a Bar’s Leak pellet usage limit???
  94. oil pressure low...engine getting hotter
  95. Replacing Belt Idler & belt - HELP!
  96. Head bolts & time-serts?
  97. Fuel filter R&r
  98. 98 SLS Overheating in minutes
  99. 96 deville fuel pressure regulator?
  100. blower motor control issues
  101. '96 Deville SES light on and hard to start
  102. Where can i find a supercharger
  103. Northstar Engine assembly - instructions
  104. 4T80E down shifting RPM 4000
  105. coolant leak
  106. Low Oil Pressure???
  107. Bar's Leaks "Head Gasket Repair"
  108. 96 Deville No Start condition, help
  109. 94 N* swap in 96 Eldo
  110. Preventing head gasket and cooling system failures...
  111. Engine oil life % - Who uses it?
  112. GM Dealer Coolant Procedure?
  113. Another Coolant Question
  114. Oil Additives... BBOB?? and others....
  115. 98 deville ses lights
  116. can '98 Northstar be tuned to take Regular Gas?
  117. gas in oil
  118. engine code 9 with a trouble code 53.
  119. 2001 eldorado engine quits momentarily
  120. 2002 Escalade 70k miles QUESTIONS???
  121. Re-Set Codes
  122. Codes and Coolant Mistery, Hesitation
  123. Synth ATF
  124. Check engine light
  125. Code Buttons
  126. EGR removal on 1997 seville w/ northstar?
  127. northstar 32v V8 2001 eldorado engine
  128. Engine wont rev Bad Tranny
  129. 4t80E will not shift into third
  130. Installed Magnaflows.........
  131. P039 VCC Lockup Problem: Read Archives, Still Have Questions
  132. EGR Trouble HELP???
  133. OBD? DTC? How do I access these?
  134. Heater hoses
  135. Heater hoses
  136. Radiator tablets redux
  137. "CHECK COOLANT LEVEL" 14 months after fluid change
  138. what does this code pertain to? pc0153 current
  139. i need help with my deville
  140. what is wrong with my 1996 deville
  141. Little green hoses
  142. DTS MODs?
  143. Trouble Codes and Car Shuddering
  144. EBTCM traction control module
  145. will purchase 98 Eldo ETC... who should inspect/work on car? EXT Warranty Info help
  146. Read This, Need Help!!! Egr??? Fpr???
  147. 98 deville
  148. Eldo Mods? chip, exhaust, nos, ect.
  149. 3 more radiator queries
  150. 2 more radiator drain queries
  151. Transmission Pressuse Solenoid
  152. 95 Concours Put Barsleak in canister
  153. 96 Deville codes pco603 and pco717
  154. Reset codes?
  155. "Flush" coolant?
  156. ETCBM (traction control computer)
  157. 1996 DeVille Northstar
  158. Motor mount help needed!
  159. 1994 STS First Roadtrip Coolant Temp
  160. Break In Oil
  161. question about N* headgasket
  162. trans code
  163. No 4th gear...
  164. 02 sensor
  165. Northstar longevity! 323,000 miles!
  166. 95 Seville SLS Major Problems
  167. Found the SES P102 issue! Now A/C issue
  168. TPS and/or EGR needed?
  169. OBDII diagnostic codes
  170. P0102/B1009/U1301 and others HELP!!!
  171. Max throtle angle
  172. Throttle Position Sensor relearn
  173. Original or swapped N*
  174. New cdes!!!!
  175. 1995 Concours, Fuel injector size?
  176. Reading .Bins from proms?
  177. Coolant changed to green... problem?
  178. Northstar Rebuild --- Chime In, I have questions...
  179. Preventive Maintenance While Engines Out
  180. burn out? burn not.
  181. Removing Heli-coils
  182. DIC items???
  183. cost?
  184. Oil Cooler Lines
  185. Smell Coolant but from what?
  186. VIN and Performance Questions
  187. Small coolant leak
  188. check engine soon
  189. 1994 Northstar Swap
  190. Bbob, Purging/exchanging tranny fluid
  191. Rough running 2000 Seville
  192. northstar motor swap
  193. oil pan gasket change
  194. 4T80E hard shift
  195. black box under car????
  196. 93 eldorado
  197. 1987 Deville Stereo Question, Please help?
  198. Fuel Injector
  199. Car jerking in 3rd gear
  200. 98 Northstar Motor Whistle
  201. Head Bolts, fixed by what year?
  202. Good repair shop in DC/MD/VA area
  203. 2001 Cracked block??
  204. rough idle at start-up
  205. Chronic miss in 4.6L Northstar
  206. Engine Cold/Knock/Tick Noise (Replace Pistons)
  207. Question for OBD1 Guys: Can you pop an eprom out of your ECM?
  208. Performance Upgrades?
  209. 02 sensor
  210. service eng light when heat turned on
  211. Won't start - Inconsistent compression
  212. L37 vs LD8, actual differences?
  213. Need Help Please!!!
  214. High charging voltage, stumped?
  215. No start on cold days?
  216. Dealer Diagnosis - $3000 BS??
  217. has anyone had a problem with 98 sls dieing at a low idle?
  218. ABS - Traction Control
  219. help with codes please
  220. High performance ignition?
  221. Northstar Performance Enhacements?
  222. Power LOSS
  223. Has anybody done a S/C northstar yet?
  224. PCM P1153: 02 Sensor Insufficient Switching, PLEASE HELP
  225. Traction Control Problem
  226. Bobbyinski -- Northstar failure
  227. Cold Engine Misfire
  228. DTCs from my flood car - help with diagnosis
  229. PCM code????
  230. how to pull dic codes?
  231. Dealer Installed Timesert Question
  232. 99 deville sounds/runs awful
  233. Oil pan gasket
  234. n.star water pump removal & install how-to
  235. Thinking of buying a Snap-On MT2500, any thoughts?
  236. Crankcase scrap rate.
  237. what years are compatible with my 93 STS?
  238. Aaaaagh! I should'v know better,
  239. Headlights wont cut off
  240. 2000+ engine in 1998 possible maybe?
  241. Service Engine Light Codes...Please Help
  242. Severe lack of performance
  243. Chk Emmisions/Chk Engine/Rough/Smelly
  244. code tc 0073 ?
  245. Leaking Radiator fixed
  246. RPM Surge at startup
  247. Engine Running Hot..239 at shut off
  248. 2000 deville clicking noise
  249. 1994 sts Idles @ 2-3 thousand RPM
  250. engine dies frequently-pc0231 the problem?