: Northstar Engines and System Technical Discussion



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  1. Eldorado Exhaust??
  2. Frenchcad Is Asking For Help To Burn Speed Limit...
  3. car won't start!
  4. 95 STS corrosion
  5. One Dead Deville 1999
  6. 94' SLS t073 erratic idle & stalling
  7. 2000sts trouble codes
  8. check engine soon????????
  9. 99 STS Gas pedal sticking
  10. 94 Northstar question
  11. BG44k
  12. (Pressing gas) CLUNK.. What the heck?
  13. Fuel Additives
  14. Loud Pop
  15. help with some error codes 96 etc.
  16. Increasing Displacement
  17. 4T80E gearing
  18. Holy hell, i tried that Lucus oil additive....
  19. "Stop Engine Low Oil Pressure"
  20. Gas MPG low? and electrical question
  21. need help again, new code
  22. Failed Emission - high HC
  23. Stalling/Starting Problem
  24. 91 vw golf with northstar!!must see
  25. Looking for a source of Northstar Engines
  26. egr
  27. Starter Enable Relay!! Found it, Cleaned it, Fixed it.!!!
  28. Northstar head compatibility
  29. 96 Oil Leak
  30. Parts swapping
  31. Is there a GM TSB for the use of Time-Serts?
  32. 2000 Sts Exhaust
  33. 97 STS eliminate the converter?
  34. Exhaust question
  35. Limp yo-self home, N*!
  36. Trans. Problem?
  37. where is the starter relay, 1993 sts northstar
  38. Transmission flush?
  39. Forum Opinion on 2000 STS
  40. PLEASE!!! -4 and under, lights on,no power to starter!!
  41. dtc pcm 0139 now what?
  42. 1995 sts,manifold cover
  43. Check Coolant Level Message & temp. question
  44. overdrive or drive
  45. Code in history ? P039
  46. Dtc P0101
  47. How to pull engine codes and where to find?
  48. Performance mods!
  49. Diry relief valve causing loss of oil pressure?
  50. 95 STS Water Pump Question.
  51. NOLOGY wires for northstar motors
  52. northstar question
  53. Code SO61? PO83?
  54. Clicking noise
  55. Huge muffler comparison
  56. Fixed the egr valve myself
  57. Does Northstar turn off cylinders like 4-6-8?
  58. Fuel Additives
  59. Problems with N* arise
  60. Diagnostic Code?
  61. Went to a mechanic today on EGR
  62. Thoughts, opinions, and suggestions on carbon deposits.
  63. Year 2000 Northstar 32V engine oil consumption problem?
  64. Spark Plugs
  65. EGR Valve , need help locating it
  66. filling coolant system after flush
  67. Tornado Fuel Saver
  68. EGR valve install question
  69. Where are my O2 Sensors?
  70. PCM? What now
  71. My timesert kit on ebay, reserve at $160!
  72. No speedo!!!
  73. Carbon buildup/ fuel additives/ opinions???
  74. 95 sts starting problems
  75. Should I fix or sell?
  76. could be 1 or 2 things idler pulley or water pump plz help
  77. Northstar driven 94 Pontiac Grand Prix GTP RWD
  78. Leaking Water Pump 1998 Deville
  79. Smoking Northstar!
  80. Engine rebuilt?
  81. Northstar Squealing noise
  82. Oil change
  83. performance exhaust
  84. '94 Concours Hard To Start
  85. P0113/P1111 - then what ?
  86. whast should a 94 north start run temp wise
  87. Changing Serpentine Belt
  88. Custom Intake
  89. Maintaining Northstar Engines *A must Read*
  90. Headgasket replacement finished
  91. N* engine mount bushings...what happens if...
  92. How to remove the belt tensioner?
  93. New Cadillac owner
  94. TO 73 code??????
  95. What are my options?
  96. 2000 DeVille - Stalling
  97. Temp Sensor
  98. Misfirin' 98 DeVille. How much $ is DTC p0300,603,1381 cost?
  99. Temperature sensor - another problem...
  100. 4 Questions / 93 STS w/ 4.6
  101. Lights flicker?
  102. lights that dim when...
  103. Glitch In 97 Concours
  104. alternator replacement part deux
  105. P086 code on 94 STS keep sme from getting it smogged
  106. Calling out 156mph
  107. Cadillac dealer...
  108. ShadowLvr400......
  109. 4.6 northstar / engine, Trans swap ?
  110. TRANSMISSION/Torque convertor problems??? HELP!!!
  111. Nitrous
  112. More on coolant issues....Long post alert!
  113. '95 STS Clearing on-board diagnostic codes
  114. Quick and Simple Question
  115. 2000 STS Oil Life
  116. Calling all North* Specialist....Changing out the Alternator
  117. Service Engine Soon? What's that Noise?
  118. Dashboard mayhem
  119. weird?
  120. Need Technical Help for Engine swaping...
  121. Anyone have an opinion on electric superchargers?
  122. Will '95 coil pack, intake or exhaust fit my '93 N*?
  123. northstar performance upgrades
  124. Exhaust manifold ?
  125. Please help! Considering a '94 Deville Concours N'star
  126. New member, trying to find out if oil burning is ok!
  127. Repair Advice Needed in Orange County, CA
  128. P030 Code on '93 STS
  129. "no battery charge"
  130. "check oil level"
  131. '95 STS showing SES code: P085
  132. Which o2 sensor??
  133. Code PO24-VSS Signal To TCC-Where is It Located At?
  134. TPS - Problems
  135. thermal meltdown of n* engine ?
  136. Are Gremlins pinching my fuel line? ARGHHH!!
  137. 2002 engine into 97 Deville?
  138. Tune up?
  139. Freeze plugs ( So called )
  140. 94 Concourse Shifting Problem
  141. I smell gas in my 95 concours
  142. message
  143. update on my 97 concours
  144. NA power out of a North*?
  145. 2002 what does loss of dim communication?
  146. Turbos put back?
  147. Leaking Heater Core in 1999 DeVelle
  148. Overheating: Am I screwed?
  149. Bolting filter right on the motor
  150. 94 Eldorado Oil level sensor problem
  151. o2 sensors!!!!!! argggggggg
  152. Help Codes Driving Me Insane
  153. Funny Smell
  154. 94 Seville STS History Codes???
  155. Emissions Code on 1996 STS
  156. Real unhappy with (my new) used caddy - Can't ID the DTC's
  157. Opinions on possible purchase 91 Deville
  158. Signs you need a tuneup?
  159. R/r water pump
  160. Help Me!
  161. Hard Starting STS
  162. OBD2 Reprogramming
  163. Chip or no chip?
  164. Northstar R&R Book Times
  165. Northstars & oil consumption...are there "good" & "bad" motors?
  166. 275hp to 300hp head swap question
  167. Northstar Aftermarket Support
  168. Do Northstars burn oil fast???
  169. Help!!
  170. Northstar overheating
  171. Most common problems with NS motor
  172. Engine size ?????
  173. What is the deal with the Crank Position Sensor and...
  174. sneaky coolant leak, Northstar
  175. Bad plug wires get you crazy codes
  176. stupid dipstick
  177. N* Head Gasket repair part I/ Remove engine
  178. idle speed adjust?
  179. Belt Question
  180. Emissions System
  181. 99 SLS probelms
  182. help with codes?
  183. Head Work
  184. New person here - piston replacement question
  185. How to get to plugs on 00 STS?
  186. 1995 SLS Engine and Trans
  187. tps 1995 sts adjusted
  188. are the '93 and '95 northstar computers the same?
  189. Cracked Water Pump Housing Northstar
  190. Erratic fuel level gauge & a few other ???
  191. Time serts head gaskets and cadillac refunds
  192. 1990 Sedan Deville Valve Job
  193. Limited slip...sort of
  194. Octane reading
  195. Check Oilk Level wont stop
  196. Please help..engine coolant ?....
  197. Traction Control on STS ???
  198. 96 Seville, Check Engine Light, New owner?
  199. Help with cooling system
  200. ? on seville northstar motor?
  201. Help! I have a 1997 Concours(traction c) I would love to know where this wire goes??
  202. maintenence records?
  203. rear windows fog up
  204. Northstar - Golf swap
  205. PCM codes
  206. 1997 Deville problems
  207. Smelling Coolant inside - 93 STS
  208. Battery Replacement on 95 STS
  209. Service Brake Fluid Switch
  210. Transmition shifting ?'s
  211. Engine cutout 93STS north*
  212. Oil Life Message Problem
  213. Can I get some pictures (N* mounting)?
  214. OBD codes
  215. 95-sts wont start
  216. idle sts-95
  217. Anyone know where I can find cheap o2 sensors?!
  218. So....someone wanna rent me a timesert kit?
  219. Ignition module failure?
  220. Need help understanding a code
  221. Best oil for Northstar engines?
  222. Northstar questions: engine and tranny mounts
  223. Service Engine Light
  224. Idle speed
  225. Intermitant DTC P1416, where do I start looking?
  226. phenolic spacers cleaning
  227. Regular Unleaded
  228. Throttle Body
  229. 97 Concours....SOLD!
  230. Help Codes
  231. Thermostat
  232. 4.0/4.6 Combustion Chambers
  233. Intake air sensor / resistor mod
  234. valve job? something burning......
  235. Easy method of telling you need a coolant change!!!!!
  236. 97 dedan deville speedometer display out...
  237. 4.6L engine knock at idle
  238. High Performance driving
  239. Starting Issue
  240. High octane
  241. 4.6L engine knock at idle
  242. Headgaskets
  243. hard starting, won't pass smog symptoms
  244. Info on converter lock,,code PO39
  245. Northstar engine numbers
  246. Locking converter/check engine SOON
  247. How to replace front motor MOUNT
  248. can any one help
  249. Motor Rocks
  250. Torque converter lockup?