: Northstar Engines and System Technical Discussion



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