: Northstar Engines and System Technical Discussion



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  1. Mechanic needs help, NS killing ICM
  2. Just told driveshaft is shot. What should I do?
  3. Timesert kit FS! $130 Shipped!
  4. Is my mechanic pulling a 'fast one'?
  5. Sluggish when driving
  6. 1998 Cai??
  7. Error Codes, Diagnostic Mode, RKE Programming, Owners Manuals, General Info
  8. Error Codes and Diagnostic Mode Explained
  9. Head bolt retorque method recommendation needed
  10. Is New Exhaust Hurting MPG?
  11. 1998 STS A/C Problems
  12. traction control sucks!
  13. tranny troubles in Montana
  14. flashing number on display
  15. Which Fuel Company
  16. Oil pressure problems
  17. No power from Northstar on '98 Deville
  18. bosch 4's????
  19. Oil Under Intake Manifold on Northstar
  20. Complicated spark problem on 94/99 Northstar engine
  21. 96 Eldo Warm Eng. Miss No Codes
  22. Every North* blows head gaskets??????
  23. 97 STS P0300 Current/P0603 History SES light
  24. Shift Solenoid "A" and "B" question
  25. whats the difference
  26. Head gaskets on 1993 Allante Northstar
  27. Got codes Help Please
  28. How do I Access OBCII 98 DeVille
  29. good buy?
  30. Fuel Pressure Loss
  31. Crank Sensor--Revisited
  32. Suddenly running rough
  33. Northstar Stalls On Restart
  34. northstar engine swap info
  35. Yep She's A Leaker
  36. Fuel economy post 60k service?
  37. Fuel rail leak--another thorn in the side
  38. anyon know where i can get a chip?
  39. 4.6 running rough at idle in gear
  40. Codes
  41. wat should i do to my car
  42. Annoying engine noise
  43. How long to check codes?
  44. 93 STS Overheated, now idles high. PLEASE HELP
  45. Engine Stalling at traffic light
  46. Coolant Supplement Tablet question
  47. Trans or can it be Electrical
  48. help wilth coede PO23
  49. my 94 SLS code problems help!!
  50. Transmission help!!
  51. Where is the EGR valve located?
  52. clearing codes
  53. How To Fix Clicking Throttle Body
  54. Where can I buy a new EGR valve at a good price?
  55. '98 STS - "Service engine soon" light was on for two days...now off...car runs great
  56. Coolant Flush?
  57. Random Multiple Cylinder Misfire
  58. Idle seems rough.
  59. how to avoid cracked heads?
  60. Can you put in too much coolant?
  61. Dex-Cool
  62. Engine Coolant
  63. Weird?
  64. oil pressure loss "STOP ENGINE" warning FIX
  65. Impossible To Fix Overheating Problem
  66. Leaking coolant? Head gasket???
  67. 4t80-e transmission leakage
  68. Resonator Question..
  69. 96 Eldo Warm Eng. Miss. Acceleration Miss.
  70. How do I retrive codes
  71. Help! Service Emissions Soon and Check Engine
  72. Can you repair the fuel rail
  73. Where to get Northstar computer and harness??
  74. A Little Head
  75. 97 Eldo running weak!
  76. Ok, I've pulled the codes and decoded them...
  77. How do I pull codes off my 97 SLS?
  78. help!!...no start and no power at purple wire
  79. slow return to idle (95 sts)
  80. surging under WOT
  81. where do i get performance chips
  82. EMERGENCY----c1232 and c1255
  83. SUPERCHARGER soon
  84. Fuel Problem. TPS or a cleaning?
  85. Northstar needs engine protectors ?
  86. Spark Plug and Wire Change Summary
  87. Help! 96 STS Stalling and Barely Drives
  88. Bad oil Leak
  89. Is it possible to go from 4.1 to Northstar?
  90. need help on replacing the idle speed control motor
  91. Fuel Rail Replacement 96 sts
  92. ISO mechanic for 95 Seville in NE Illinois/SE Wisconsin
  93. N.Star Deville afermarket Tachometer ?
  94. Northstar Electromotive TEC3 .bin file needed
  95. Blown Head Gasket...Help!!
  96. STS Computer Into Deville?
  97. Frozen Spark Plugs
  98. thanks elwesso,lido
  99. Eldorado Exhaust??
  100. Frenchcad Is Asking For Help To Burn Speed Limit...
  101. car won't start!
  102. 95 STS corrosion
  103. One Dead Deville 1999
  104. 94' SLS t073 erratic idle & stalling
  105. 2000sts trouble codes
  106. check engine soon????????
  107. 99 STS Gas pedal sticking
  108. 94 Northstar question
  109. BG44k
  110. (Pressing gas) CLUNK.. What the heck?
  111. Fuel Additives
  112. Loud Pop
  113. help with some error codes 96 etc.
  114. Increasing Displacement
  115. 4T80E gearing
  116. Holy hell, i tried that Lucus oil additive....
  117. "Stop Engine Low Oil Pressure"
  118. Gas MPG low? and electrical question
  119. need help again, new code
  120. Failed Emission - high HC
  121. Stalling/Starting Problem
  122. 91 vw golf with northstar!!must see
  123. Looking for a source of Northstar Engines
  124. egr
  125. Starter Enable Relay!! Found it, Cleaned it, Fixed it.!!!
  126. Northstar head compatibility
  127. 96 Oil Leak
  128. Parts swapping
  129. Is there a GM TSB for the use of Time-Serts?
  130. 2000 Sts Exhaust
  131. 97 STS eliminate the converter?
  132. Exhaust question
  133. Limp yo-self home, N*!
  134. Trans. Problem?
  135. where is the starter relay, 1993 sts northstar
  136. Transmission flush?
  137. Forum Opinion on 2000 STS
  138. PLEASE!!! -4 and under, lights on,no power to starter!!
  139. dtc pcm 0139 now what?
  140. 1995 sts,manifold cover
  141. Check Coolant Level Message & temp. question
  142. overdrive or drive
  143. Code in history ? P039
  144. Dtc P0101
  145. How to pull engine codes and where to find?
  146. Performance mods!
  147. Diry relief valve causing loss of oil pressure?
  148. 95 STS Water Pump Question.
  149. NOLOGY wires for northstar motors
  150. northstar question
  151. Code SO61? PO83?
  152. Clicking noise
  153. Huge muffler comparison
  154. Fixed the egr valve myself
  155. Does Northstar turn off cylinders like 4-6-8?
  156. Fuel Additives
  157. Problems with N* arise
  158. Diagnostic Code?
  159. Went to a mechanic today on EGR
  160. Thoughts, opinions, and suggestions on carbon deposits.
  161. Year 2000 Northstar 32V engine oil consumption problem?
  162. Spark Plugs
  163. EGR Valve , need help locating it
  164. filling coolant system after flush
  165. Tornado Fuel Saver
  166. EGR valve install question
  167. Where are my O2 Sensors?
  168. PCM? What now
  169. My timesert kit on ebay, reserve at $160!
  170. No speedo!!!
  171. Carbon buildup/ fuel additives/ opinions???
  172. 95 sts starting problems
  173. Should I fix or sell?
  174. could be 1 or 2 things idler pulley or water pump plz help
  175. Northstar driven 94 Pontiac Grand Prix GTP RWD
  176. Leaking Water Pump 1998 Deville
  177. Smoking Northstar!
  178. Engine rebuilt?
  179. Northstar Squealing noise
  180. Oil change
  181. performance exhaust
  182. '94 Concours Hard To Start
  183. P0113/P1111 - then what ?
  184. whast should a 94 north start run temp wise
  185. Changing Serpentine Belt
  186. Custom Intake
  187. Maintaining Northstar Engines *A must Read*
  188. Headgasket replacement finished
  189. N* engine mount bushings...what happens if...
  190. How to remove the belt tensioner?
  191. New Cadillac owner
  192. TO 73 code??????
  193. What are my options?
  194. 2000 DeVille - Stalling
  195. Temp Sensor
  196. Misfirin' 98 DeVille. How much $ is DTC p0300,603,1381 cost?
  197. Temperature sensor - another problem...
  198. 4 Questions / 93 STS w/ 4.6
  199. Lights flicker?
  200. lights that dim when...
  201. Glitch In 97 Concours
  202. alternator replacement part deux
  203. P086 code on 94 STS keep sme from getting it smogged
  204. Calling out 156mph
  205. Cadillac dealer...
  206. ShadowLvr400......
  207. 4.6 northstar / engine, Trans swap ?
  208. TRANSMISSION/Torque convertor problems??? HELP!!!
  209. Nitrous
  210. More on coolant issues....Long post alert!
  211. '95 STS Clearing on-board diagnostic codes
  212. Quick and Simple Question
  213. 2000 STS Oil Life
  214. Calling all North* Specialist....Changing out the Alternator
  215. Service Engine Soon? What's that Noise?
  216. Dashboard mayhem
  217. weird?
  218. Need Technical Help for Engine swaping...
  219. Anyone have an opinion on electric superchargers?
  220. Will '95 coil pack, intake or exhaust fit my '93 N*?
  221. northstar performance upgrades
  222. Exhaust manifold ?
  223. Please help! Considering a '94 Deville Concours N'star
  224. New member, trying to find out if oil burning is ok!
  225. Repair Advice Needed in Orange County, CA
  226. P030 Code on '93 STS
  227. "no battery charge"
  228. "check oil level"
  229. '95 STS showing SES code: P085
  230. Which o2 sensor??
  231. Code PO24-VSS Signal To TCC-Where is It Located At?
  232. TPS - Problems
  233. thermal meltdown of n* engine ?
  234. Are Gremlins pinching my fuel line? ARGHHH!!
  235. 2002 engine into 97 Deville?
  236. Tune up?
  237. Freeze plugs ( So called )
  238. 94 Concourse Shifting Problem
  239. I smell gas in my 95 concours
  240. message
  241. update on my 97 concours
  242. NA power out of a North*?
  243. 2002 what does loss of dim communication?
  244. Turbos put back?
  245. Leaking Heater Core in 1999 DeVelle
  246. Overheating: Am I screwed?
  247. Bolting filter right on the motor
  248. 94 Eldorado Oil level sensor problem
  249. o2 sensors!!!!!! argggggggg
  250. Help Codes Driving Me Insane