: Northstar Engines and System Technical Discussion



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  1. New Lights
  2. O2 sensor
  3. 95 eldorado Northstar over heats
  4. What to do, what to do...
  5. Main Bearing Replacement?
  6. Rear Main Seal Installer
  7. Looking for a few answers
  8. Help!!!
  9. 94 Seville
  10. My 1996 Sedan Deville won't go over 40 mph?
  11. Northstar and CHRFAB article
  12. 94 eldo compression test
  13. Ignition Wires
  14. Ran my STS again
  15. how long....
  16. 1994 Deville oil pan gasket leak
  17. Leaky oil pan gasket on 94 N* eldo
  18. Service Ride Control and traction control
  19. Some initial worries for 94 eldo tc
  20. some problems
  21. computer readout !!!
  22. Thottle Body
  23. Where to find a Northstar engine
  24. Rough Idel
  25. My 99 STS Overheated
  26. Engine Mounts
  27. oil pan gasket
  28. 94 Deville Concourse Billowing White Smoke
  29. cheap perfomance stuff...
  30. Coolant smell from heater; how screwed am I?
  31. Changing the fuel filter
  32. How to do a tuneup on a North*
  33. '96 SLS: IPC Option C problem
  34. Northstar Oil Usage
  35. Buzzing from turn signal
  36. Engine Data Analysis help
  37. 94 eldorado W/coolant in oil
  38. Growe3, Engine Removal Questions
  39. My .02 on Carbon
  40. N* plugs & wires: DIY or leave it for the pros?
  41. MAP sensor
  42. Lucus Products? Fuel Injector Cleaner
  43. Need Northstar Advic
  44. questions before installing new idle speed motor
  45. 94' Sls Pcm
  46. my first mod
  47. coolant leak - is this a bad fix?
  48. 96 Eldorado Oil leak
  49. Northstar dimensions
  50. Mechanic needs help, NS killing ICM
  51. Just told driveshaft is shot. What should I do?
  52. Timesert kit FS! $130 Shipped!
  53. Is my mechanic pulling a 'fast one'?
  54. Sluggish when driving
  55. 1998 Cai??
  56. Error Codes, Diagnostic Mode, RKE Programming, Owners Manuals, General Info
  57. Error Codes and Diagnostic Mode Explained
  58. Head bolt retorque method recommendation needed
  59. Is New Exhaust Hurting MPG?
  60. 1998 STS A/C Problems
  61. traction control sucks!
  62. tranny troubles in Montana
  63. flashing number on display
  64. Which Fuel Company
  65. Oil pressure problems
  66. No power from Northstar on '98 Deville
  67. bosch 4's????
  68. Oil Under Intake Manifold on Northstar
  69. Complicated spark problem on 94/99 Northstar engine
  70. 96 Eldo Warm Eng. Miss No Codes
  71. Every North* blows head gaskets??????
  72. 97 STS P0300 Current/P0603 History SES light
  73. Shift Solenoid "A" and "B" question
  74. whats the difference
  75. Head gaskets on 1993 Allante Northstar
  76. Got codes Help Please
  77. How do I Access OBCII 98 DeVille
  78. good buy?
  79. Fuel Pressure Loss
  80. Crank Sensor--Revisited
  81. Suddenly running rough
  82. Northstar Stalls On Restart
  83. northstar engine swap info
  84. Yep She's A Leaker
  85. Fuel economy post 60k service?
  86. Fuel rail leak--another thorn in the side
  87. anyon know where i can get a chip?
  88. 4.6 running rough at idle in gear
  89. Codes
  90. wat should i do to my car
  91. Annoying engine noise
  92. How long to check codes?
  93. 93 STS Overheated, now idles high. PLEASE HELP
  94. Engine Stalling at traffic light
  95. Coolant Supplement Tablet question
  96. Trans or can it be Electrical
  97. help wilth coede PO23
  98. my 94 SLS code problems help!!
  99. Transmission help!!
  100. Where is the EGR valve located?
  101. clearing codes
  102. How To Fix Clicking Throttle Body
  103. Where can I buy a new EGR valve at a good price?
  104. '98 STS - "Service engine soon" light was on for two days...now off...car runs great
  105. Coolant Flush?
  106. Random Multiple Cylinder Misfire
  107. Idle seems rough.
  108. how to avoid cracked heads?
  109. Can you put in too much coolant?
  110. Dex-Cool
  111. Engine Coolant
  112. Weird?
  113. oil pressure loss "STOP ENGINE" warning FIX
  114. Impossible To Fix Overheating Problem
  115. Leaking coolant? Head gasket???
  116. 4t80-e transmission leakage
  117. Resonator Question..
  118. 96 Eldo Warm Eng. Miss. Acceleration Miss.
  119. How do I retrive codes
  120. Help! Service Emissions Soon and Check Engine
  121. Can you repair the fuel rail
  122. Where to get Northstar computer and harness??
  123. A Little Head
  124. 97 Eldo running weak!
  125. Ok, I've pulled the codes and decoded them...
  126. How do I pull codes off my 97 SLS?
  127. help!!...no start and no power at purple wire
  128. slow return to idle (95 sts)
  129. surging under WOT
  130. where do i get performance chips
  131. EMERGENCY----c1232 and c1255
  132. SUPERCHARGER soon
  133. Fuel Problem. TPS or a cleaning?
  134. Northstar needs engine protectors ?
  135. Spark Plug and Wire Change Summary
  136. Help! 96 STS Stalling and Barely Drives
  137. Bad oil Leak
  138. Is it possible to go from 4.1 to Northstar?
  139. need help on replacing the idle speed control motor
  140. Fuel Rail Replacement 96 sts
  141. ISO mechanic for 95 Seville in NE Illinois/SE Wisconsin
  142. N.Star Deville afermarket Tachometer ?
  143. Northstar Electromotive TEC3 .bin file needed
  144. Blown Head Gasket...Help!!
  145. STS Computer Into Deville?
  146. Frozen Spark Plugs
  147. thanks elwesso,lido
  148. Eldorado Exhaust??
  149. Frenchcad Is Asking For Help To Burn Speed Limit...
  150. car won't start!
  151. 95 STS corrosion
  152. One Dead Deville 1999
  153. 94' SLS t073 erratic idle & stalling
  154. 2000sts trouble codes
  155. check engine soon????????
  156. 99 STS Gas pedal sticking
  157. 94 Northstar question
  158. BG44k
  159. (Pressing gas) CLUNK.. What the heck?
  160. Fuel Additives
  161. Loud Pop
  162. help with some error codes 96 etc.
  163. Increasing Displacement
  164. 4T80E gearing
  165. Holy hell, i tried that Lucus oil additive....
  166. "Stop Engine Low Oil Pressure"
  167. Gas MPG low? and electrical question
  168. need help again, new code
  169. Failed Emission - high HC
  170. Stalling/Starting Problem
  171. 91 vw golf with northstar!!must see
  172. Looking for a source of Northstar Engines
  173. egr
  174. Starter Enable Relay!! Found it, Cleaned it, Fixed it.!!!
  175. Northstar head compatibility
  176. 96 Oil Leak
  177. Parts swapping
  178. Is there a GM TSB for the use of Time-Serts?
  179. 2000 Sts Exhaust
  180. 97 STS eliminate the converter?
  181. Exhaust question
  182. Limp yo-self home, N*!
  183. Trans. Problem?
  184. where is the starter relay, 1993 sts northstar
  185. Transmission flush?
  186. Forum Opinion on 2000 STS
  187. PLEASE!!! -4 and under, lights on,no power to starter!!
  188. dtc pcm 0139 now what?
  189. 1995 sts,manifold cover
  190. Check Coolant Level Message & temp. question
  191. overdrive or drive
  192. Code in history ? P039
  193. Dtc P0101
  194. How to pull engine codes and where to find?
  195. Performance mods!
  196. Diry relief valve causing loss of oil pressure?
  197. 95 STS Water Pump Question.
  198. NOLOGY wires for northstar motors
  199. northstar question
  200. Code SO61? PO83?
  201. Clicking noise
  202. Huge muffler comparison
  203. Fixed the egr valve myself
  204. Does Northstar turn off cylinders like 4-6-8?
  205. Fuel Additives
  206. Problems with N* arise
  207. Diagnostic Code?
  208. Went to a mechanic today on EGR
  209. Thoughts, opinions, and suggestions on carbon deposits.
  210. Year 2000 Northstar 32V engine oil consumption problem?
  211. Spark Plugs
  212. EGR Valve , need help locating it
  213. filling coolant system after flush
  214. Tornado Fuel Saver
  215. EGR valve install question
  216. Where are my O2 Sensors?
  217. PCM? What now
  218. My timesert kit on ebay, reserve at $160!
  219. No speedo!!!
  220. Carbon buildup/ fuel additives/ opinions???
  221. 95 sts starting problems
  222. Should I fix or sell?
  223. could be 1 or 2 things idler pulley or water pump plz help
  224. Northstar driven 94 Pontiac Grand Prix GTP RWD
  225. Leaking Water Pump 1998 Deville
  226. Smoking Northstar!
  227. Engine rebuilt?
  228. Northstar Squealing noise
  229. Oil change
  230. performance exhaust
  231. '94 Concours Hard To Start
  232. P0113/P1111 - then what ?
  233. whast should a 94 north start run temp wise
  234. Changing Serpentine Belt
  235. Custom Intake
  236. Maintaining Northstar Engines *A must Read*
  237. Headgasket replacement finished
  238. N* engine mount bushings...what happens if...
  239. How to remove the belt tensioner?
  240. New Cadillac owner
  241. TO 73 code??????
  242. What are my options?
  243. 2000 DeVille - Stalling
  244. Temp Sensor
  245. Misfirin' 98 DeVille. How much $ is DTC p0300,603,1381 cost?
  246. Temperature sensor - another problem...
  247. 4 Questions / 93 STS w/ 4.6
  248. Lights flicker?
  249. lights that dim when...
  250. Glitch In 97 Concours