: Northstar Engines and System Technical Discussion



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  1. Transmission codes
  2. Which pistons can and should I use
  3. Fastest NORTHSTAR
  4. changing out serpentine tensioner
  5. Service engine soon light-94 concours
  6. High Oil Consumption, Pulled Headbolts, Blown Head Gaskets, Bars Leak, Unstable Temps
  7. Motor Oil Choice
  8. Finding coolant leak...need help
  9. Oil Under Intake 94 Northstar
  10. Engine Coolant Temperature 190-201 F
  11. Engine misfire/stall codes
  12. How do I clear codes?
  13. '95 SLS high idling temperature
  14. Right Milage?
  15. Removing the dowels
  16. What is normal engine temp for the northstar?
  17. What mods is available for my 94 SLS ???
  18. Is There a Bar’s Leak pellet usage limit???
  19. oil pressure low...engine getting hotter
  20. Replacing Belt Idler & belt - HELP!
  21. Head bolts & time-serts?
  22. Fuel filter R&r
  23. 98 SLS Overheating in minutes
  24. 96 deville fuel pressure regulator?
  25. blower motor control issues
  26. '96 Deville SES light on and hard to start
  27. Where can i find a supercharger
  28. Northstar Engine assembly - instructions
  29. 4T80E down shifting RPM 4000
  30. coolant leak
  31. Low Oil Pressure???
  32. Bar's Leaks "Head Gasket Repair"
  33. 96 Deville No Start condition, help
  34. 94 N* swap in 96 Eldo
  35. Preventing head gasket and cooling system failures...
  36. Engine oil life % - Who uses it?
  37. GM Dealer Coolant Procedure?
  38. Another Coolant Question
  39. Oil Additives... BBOB?? and others....
  40. 98 deville ses lights
  41. can '98 Northstar be tuned to take Regular Gas?
  42. gas in oil
  43. engine code 9 with a trouble code 53.
  44. 2001 eldorado engine quits momentarily
  45. 2002 Escalade 70k miles QUESTIONS???
  46. Re-Set Codes
  47. Codes and Coolant Mistery, Hesitation
  48. Synth ATF
  49. Check engine light
  50. Code Buttons
  51. EGR removal on 1997 seville w/ northstar?
  52. northstar 32v V8 2001 eldorado engine
  53. Engine wont rev Bad Tranny
  54. 4t80E will not shift into third
  55. Installed Magnaflows.........
  56. P039 VCC Lockup Problem: Read Archives, Still Have Questions
  57. EGR Trouble HELP???
  58. OBD? DTC? How do I access these?
  59. Heater hoses
  60. Heater hoses
  61. Radiator tablets redux
  62. "CHECK COOLANT LEVEL" 14 months after fluid change
  63. what does this code pertain to? pc0153 current
  64. i need help with my deville
  65. what is wrong with my 1996 deville
  66. Little green hoses
  67. DTS MODs?
  68. Trouble Codes and Car Shuddering
  69. EBTCM traction control module
  70. will purchase 98 Eldo ETC... who should inspect/work on car? EXT Warranty Info help
  71. Read This, Need Help!!! Egr??? Fpr???
  72. 98 deville
  73. Eldo Mods? chip, exhaust, nos, ect.
  74. 3 more radiator queries
  75. 2 more radiator drain queries
  76. Transmission Pressuse Solenoid
  77. 95 Concours Put Barsleak in canister
  78. 96 Deville codes pco603 and pco717
  79. Reset codes?
  80. "Flush" coolant?
  81. ETCBM (traction control computer)
  82. 1996 DeVille Northstar
  83. Motor mount help needed!
  84. 1994 STS First Roadtrip Coolant Temp
  85. Break In Oil
  86. question about N* headgasket
  87. trans code
  88. No 4th gear...
  89. 02 sensor
  90. Northstar longevity! 323,000 miles!
  91. 95 Seville SLS Major Problems
  92. Found the SES P102 issue! Now A/C issue
  93. TPS and/or EGR needed?
  94. OBDII diagnostic codes
  95. P0102/B1009/U1301 and others HELP!!!
  96. Max throtle angle
  97. Throttle Position Sensor relearn
  98. Original or swapped N*
  99. New cdes!!!!
  100. 1995 Concours, Fuel injector size?
  101. Reading .Bins from proms?
  102. Coolant changed to green... problem?
  103. Northstar Rebuild --- Chime In, I have questions...
  104. Preventive Maintenance While Engines Out
  105. burn out? burn not.
  106. Removing Heli-coils
  107. DIC items???
  108. cost?
  109. Oil Cooler Lines
  110. Smell Coolant but from what?
  111. VIN and Performance Questions
  112. Small coolant leak
  113. check engine soon
  114. 1994 Northstar Swap
  115. Bbob, Purging/exchanging tranny fluid
  116. Rough running 2000 Seville
  117. northstar motor swap
  118. oil pan gasket change
  119. 4T80E hard shift
  120. black box under car????
  121. 93 eldorado
  122. 1987 Deville Stereo Question, Please help?
  123. Fuel Injector
  124. Car jerking in 3rd gear
  125. 98 Northstar Motor Whistle
  126. Head Bolts, fixed by what year?
  127. Good repair shop in DC/MD/VA area
  128. 2001 Cracked block??
  129. rough idle at start-up
  130. Chronic miss in 4.6L Northstar
  131. Engine Cold/Knock/Tick Noise (Replace Pistons)
  132. Question for OBD1 Guys: Can you pop an eprom out of your ECM?
  133. Performance Upgrades?
  134. 02 sensor
  135. service eng light when heat turned on
  136. Won't start - Inconsistent compression
  137. L37 vs LD8, actual differences?
  138. Need Help Please!!!
  139. High charging voltage, stumped?
  140. No start on cold days?
  141. Dealer Diagnosis - $3000 BS??
  142. has anyone had a problem with 98 sls dieing at a low idle?
  143. ABS - Traction Control
  144. help with codes please
  145. High performance ignition?
  146. Northstar Performance Enhacements?
  147. Power LOSS
  148. Has anybody done a S/C northstar yet?
  149. PCM P1153: 02 Sensor Insufficient Switching, PLEASE HELP
  150. Traction Control Problem
  151. Bobbyinski -- Northstar failure
  152. Cold Engine Misfire
  153. DTCs from my flood car - help with diagnosis
  154. PCM code????
  155. how to pull dic codes?
  156. Dealer Installed Timesert Question
  157. 99 deville sounds/runs awful
  158. Oil pan gasket
  159. n.star water pump removal & install how-to
  160. Thinking of buying a Snap-On MT2500, any thoughts?
  161. Crankcase scrap rate.
  162. what years are compatible with my 93 STS?
  163. Aaaaagh! I should'v know better,
  164. Headlights wont cut off
  165. 2000+ engine in 1998 possible maybe?
  166. Service Engine Light Codes...Please Help
  167. Severe lack of performance
  168. Chk Emmisions/Chk Engine/Rough/Smelly
  169. code tc 0073 ?
  170. Leaking Radiator fixed
  171. RPM Surge at startup
  172. Engine Running Hot..239 at shut off
  173. 2000 deville clicking noise
  174. 1994 sts Idles @ 2-3 thousand RPM
  175. engine dies frequently-pc0231 the problem?
  176. Is this head gasket, or ? ? ?
  177. 94 Eldorado rough at slow speeds
  178. Particulars of VVT?
  179. Rough idle on cold start-up
  180. 5 reasons I LOVE my '94 n* DeVille
  181. Check Coolant Level after Water Pump R/R
  182. Engine Temperature
  183. MAT sensor, MAP sensor....
  184. Problems After Head Gasket Replacement...
  185. 98 Eldo running rough
  186. weight of the 4.6 northstar
  187. Computer programmer
  188. bent #1 con-rod 4.6 N* no signs!!?
  189. Oil leak?
  190. Thermostat sticking open?
  191. Volant Air Intake?
  192. Please Help With Problem On My Deville
  193. My new caddy...
  194. 4.6 litre dual turbo Northstar project, engine only?
  195. Oil pressure problem
  196. waterpump in a 98 Deville
  197. 93 STS Crank Position Sensors
  198. I need info!!!!
  199. high rpm northstar
  200. Misfire and SES light
  201. codes
  202. Rev Limiter in Park and Neutral??
  203. On Board diag?
  204. ? for Bbob re: engine designations
  205. Whats YOUR winter project?
  206. STS High Idle
  207. oil level message
  208. New member
  209. traction control light
  210. Engine "missing" during acceleration
  211. Vibration
  212. Repair cost
  213. Original v. New plug wires
  214. 94 Eldo Northstar No Spark - Why?
  215. Why is the left bank now the right bank?
  216. 1994 Northstar noise
  217. Question about Corsa exhaust
  218. Dont change my ATF???? Please Help!!!!
  219. "NEW" Northstar?
  220. 97 DeVille oil leak
  221. Cabin air filter
  222. Top Speed Reached - Fuel Pump Shutoff at 105mph?
  223. Northstar ?s
  224. Spark Plugs
  225. Head Gasket Problem
  226. concours will not crank in cold weather
  227. ShortStar 3.5L oil usage
  228. Dealer Fuel Injection and Carbon Treatment
  229. AC-Delco part vs Cadillac
  230. Transmission Q? What would you do.
  231. Northstar CAD drawings ???
  232. Please Help with Instructions to Replace radiator
  233. Anybody notice? Bbob - not driving a Caddy?!
  234. Got codes P0201 P0204 P0206 P0207 P0300
  235. Is around town driving in 3rd OK?
  236. Fuel In Intake Manifold
  237. Aftermarker engine computers
  238. Need oversize timesert kit
  239. Timesert Process and Cost
  240. Water pump changed, still leaking coolant !!
  241. Running rough, really baffled
  242. Code P0420
  243. PCM Overrides?
  244. 97 concours service engine soon no codes
  245. Help
  246. Idle speed control actuator (motor)
  247. want more power!
  248. my return,enter 1994 cadillac STS (callista II)
  249. Bolt size to put on engine stand
  250. some code questions