: Northstar Engines and System Technical Discussion



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