: Northstar Engines and System Technical Discussion



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  1. EMERGENCY----c1232 and c1255
  2. SUPERCHARGER soon
  3. Fuel Problem. TPS or a cleaning?
  4. Northstar needs engine protectors ?
  5. Spark Plug and Wire Change Summary
  6. Help! 96 STS Stalling and Barely Drives
  7. Bad oil Leak
  8. Is it possible to go from 4.1 to Northstar?
  9. need help on replacing the idle speed control motor
  10. Fuel Rail Replacement 96 sts
  11. ISO mechanic for 95 Seville in NE Illinois/SE Wisconsin
  12. N.Star Deville afermarket Tachometer ?
  13. Northstar Electromotive TEC3 .bin file needed
  14. Blown Head Gasket...Help!!
  15. STS Computer Into Deville?
  16. Frozen Spark Plugs
  17. thanks elwesso,lido
  18. Eldorado Exhaust??
  19. Frenchcad Is Asking For Help To Burn Speed Limit...
  20. car won't start!
  21. 95 STS corrosion
  22. One Dead Deville 1999
  23. 94' SLS t073 erratic idle & stalling
  24. 2000sts trouble codes
  25. check engine soon????????
  26. 99 STS Gas pedal sticking
  27. 94 Northstar question
  28. BG44k
  29. (Pressing gas) CLUNK.. What the heck?
  30. Fuel Additives
  31. Loud Pop
  32. help with some error codes 96 etc.
  33. Increasing Displacement
  34. 4T80E gearing
  35. Holy hell, i tried that Lucus oil additive....
  36. "Stop Engine Low Oil Pressure"
  37. Gas MPG low? and electrical question
  38. need help again, new code
  39. Failed Emission - high HC
  40. Stalling/Starting Problem
  41. 91 vw golf with northstar!!must see
  42. Looking for a source of Northstar Engines
  43. egr
  44. Starter Enable Relay!! Found it, Cleaned it, Fixed it.!!!
  45. Northstar head compatibility
  46. 96 Oil Leak
  47. Parts swapping
  48. Is there a GM TSB for the use of Time-Serts?
  49. 2000 Sts Exhaust
  50. 97 STS eliminate the converter?
  51. Exhaust question
  52. Limp yo-self home, N*!
  53. Trans. Problem?
  54. where is the starter relay, 1993 sts northstar
  55. Transmission flush?
  56. Forum Opinion on 2000 STS
  57. PLEASE!!! -4 and under, lights on,no power to starter!!
  58. dtc pcm 0139 now what?
  59. 1995 sts,manifold cover
  60. Check Coolant Level Message & temp. question
  61. overdrive or drive
  62. Code in history ? P039
  63. Dtc P0101
  64. How to pull engine codes and where to find?
  65. Performance mods!
  66. Diry relief valve causing loss of oil pressure?
  67. 95 STS Water Pump Question.
  68. NOLOGY wires for northstar motors
  69. northstar question
  70. Code SO61? PO83?
  71. Clicking noise
  72. Huge muffler comparison
  73. Fixed the egr valve myself
  74. Does Northstar turn off cylinders like 4-6-8?
  75. Fuel Additives
  76. Problems with N* arise
  77. Diagnostic Code?
  78. Went to a mechanic today on EGR
  79. Thoughts, opinions, and suggestions on carbon deposits.
  80. Year 2000 Northstar 32V engine oil consumption problem?
  81. Spark Plugs
  82. EGR Valve , need help locating it
  83. filling coolant system after flush
  84. Tornado Fuel Saver
  85. EGR valve install question
  86. Where are my O2 Sensors?
  87. PCM? What now
  88. My timesert kit on ebay, reserve at $160!
  89. No speedo!!!
  90. Carbon buildup/ fuel additives/ opinions???
  91. 95 sts starting problems
  92. Should I fix or sell?
  93. could be 1 or 2 things idler pulley or water pump plz help
  94. Northstar driven 94 Pontiac Grand Prix GTP RWD
  95. Leaking Water Pump 1998 Deville
  96. Smoking Northstar!
  97. Engine rebuilt?
  98. Northstar Squealing noise
  99. Oil change
  100. performance exhaust
  101. '94 Concours Hard To Start
  102. P0113/P1111 - then what ?
  103. whast should a 94 north start run temp wise
  104. Changing Serpentine Belt
  105. Custom Intake
  106. Maintaining Northstar Engines *A must Read*
  107. Headgasket replacement finished
  108. N* engine mount bushings...what happens if...
  109. How to remove the belt tensioner?
  110. New Cadillac owner
  111. TO 73 code??????
  112. What are my options?
  113. 2000 DeVille - Stalling
  114. Temp Sensor
  115. Misfirin' 98 DeVille. How much $ is DTC p0300,603,1381 cost?
  116. Temperature sensor - another problem...
  117. 4 Questions / 93 STS w/ 4.6
  118. Lights flicker?
  119. lights that dim when...
  120. Glitch In 97 Concours
  121. alternator replacement part deux
  122. P086 code on 94 STS keep sme from getting it smogged
  123. Calling out 156mph
  124. Cadillac dealer...
  125. ShadowLvr400......
  126. 4.6 northstar / engine, Trans swap ?
  127. TRANSMISSION/Torque convertor problems??? HELP!!!
  128. Nitrous
  129. More on coolant issues....Long post alert!
  130. '95 STS Clearing on-board diagnostic codes
  131. Quick and Simple Question
  132. 2000 STS Oil Life
  133. Calling all North* Specialist....Changing out the Alternator
  134. Service Engine Soon? What's that Noise?
  135. Dashboard mayhem
  136. weird?
  137. Need Technical Help for Engine swaping...
  138. Anyone have an opinion on electric superchargers?
  139. Will '95 coil pack, intake or exhaust fit my '93 N*?
  140. northstar performance upgrades
  141. Exhaust manifold ?
  142. Please help! Considering a '94 Deville Concours N'star
  143. New member, trying to find out if oil burning is ok!
  144. Repair Advice Needed in Orange County, CA
  145. P030 Code on '93 STS
  146. "no battery charge"
  147. "check oil level"
  148. '95 STS showing SES code: P085
  149. Which o2 sensor??
  150. Code PO24-VSS Signal To TCC-Where is It Located At?
  151. TPS - Problems
  152. thermal meltdown of n* engine ?
  153. Are Gremlins pinching my fuel line? ARGHHH!!
  154. 2002 engine into 97 Deville?
  155. Tune up?
  156. Freeze plugs ( So called )
  157. 94 Concourse Shifting Problem
  158. I smell gas in my 95 concours
  159. message
  160. update on my 97 concours
  161. NA power out of a North*?
  162. 2002 what does loss of dim communication?
  163. Turbos put back?
  164. Leaking Heater Core in 1999 DeVelle
  165. Overheating: Am I screwed?
  166. Bolting filter right on the motor
  167. 94 Eldorado Oil level sensor problem
  168. o2 sensors!!!!!! argggggggg
  169. Help Codes Driving Me Insane
  170. Funny Smell
  171. 94 Seville STS History Codes???
  172. Emissions Code on 1996 STS
  173. Real unhappy with (my new) used caddy - Can't ID the DTC's
  174. Opinions on possible purchase 91 Deville
  175. Signs you need a tuneup?
  176. R/r water pump
  177. Help Me!
  178. Hard Starting STS
  179. OBD2 Reprogramming
  180. Chip or no chip?
  181. Northstar R&R Book Times
  182. Northstars & oil consumption...are there "good" & "bad" motors?
  183. 275hp to 300hp head swap question
  184. Northstar Aftermarket Support
  185. Do Northstars burn oil fast???
  186. Help!!
  187. Northstar overheating
  188. Most common problems with NS motor
  189. Engine size ?????
  190. What is the deal with the Crank Position Sensor and...
  191. sneaky coolant leak, Northstar
  192. Bad plug wires get you crazy codes
  193. stupid dipstick
  194. N* Head Gasket repair part I/ Remove engine
  195. idle speed adjust?
  196. Belt Question
  197. Emissions System
  198. 99 SLS probelms
  199. help with codes?
  200. Head Work
  201. New person here - piston replacement question
  202. How to get to plugs on 00 STS?
  203. 1995 SLS Engine and Trans
  204. tps 1995 sts adjusted
  205. are the '93 and '95 northstar computers the same?
  206. Cracked Water Pump Housing Northstar
  207. Erratic fuel level gauge & a few other ???
  208. Time serts head gaskets and cadillac refunds
  209. 1990 Sedan Deville Valve Job
  210. Limited slip...sort of
  211. Octane reading
  212. Check Oilk Level wont stop
  213. Please help..engine coolant ?....
  214. Traction Control on STS ???
  215. 96 Seville, Check Engine Light, New owner?
  216. Help with cooling system
  217. ? on seville northstar motor?
  218. Help! I have a 1997 Concours(traction c) I would love to know where this wire goes??
  219. maintenence records?
  220. rear windows fog up
  221. Northstar - Golf swap
  222. PCM codes
  223. 1997 Deville problems
  224. Smelling Coolant inside - 93 STS
  225. Battery Replacement on 95 STS
  226. Service Brake Fluid Switch
  227. Transmition shifting ?'s
  228. Engine cutout 93STS north*
  229. Oil Life Message Problem
  230. Can I get some pictures (N* mounting)?
  231. OBD codes
  232. 95-sts wont start
  233. idle sts-95
  234. Anyone know where I can find cheap o2 sensors?!
  235. So....someone wanna rent me a timesert kit?
  236. Ignition module failure?
  237. Need help understanding a code
  238. Best oil for Northstar engines?
  239. Northstar questions: engine and tranny mounts
  240. Service Engine Light
  241. Idle speed
  242. Intermitant DTC P1416, where do I start looking?
  243. phenolic spacers cleaning
  244. Regular Unleaded
  245. Throttle Body
  246. 97 Concours....SOLD!
  247. Help Codes
  248. Thermostat
  249. 4.0/4.6 Combustion Chambers
  250. Intake air sensor / resistor mod