: Northstar Engines and System Technical Discussion



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  1. Coolant smell from heater; how screwed am I?
  2. Changing the fuel filter
  3. How to do a tuneup on a North*
  4. '96 SLS: IPC Option C problem
  5. Northstar Oil Usage
  6. Buzzing from turn signal
  7. Engine Data Analysis help
  8. 94 eldorado W/coolant in oil
  9. Growe3, Engine Removal Questions
  10. My .02 on Carbon
  11. N* plugs & wires: DIY or leave it for the pros?
  12. MAP sensor
  13. Lucus Products? Fuel Injector Cleaner
  14. Need Northstar Advic
  15. questions before installing new idle speed motor
  16. 94' Sls Pcm
  17. my first mod
  18. coolant leak - is this a bad fix?
  19. 96 Eldorado Oil leak
  20. Northstar dimensions
  21. Mechanic needs help, NS killing ICM
  22. Just told driveshaft is shot. What should I do?
  23. Timesert kit FS! $130 Shipped!
  24. Is my mechanic pulling a 'fast one'?
  25. Sluggish when driving
  26. 1998 Cai??
  27. Error Codes, Diagnostic Mode, RKE Programming, Owners Manuals, General Info
  28. Error Codes and Diagnostic Mode Explained
  29. Head bolt retorque method recommendation needed
  30. Is New Exhaust Hurting MPG?
  31. 1998 STS A/C Problems
  32. traction control sucks!
  33. tranny troubles in Montana
  34. flashing number on display
  35. Which Fuel Company
  36. Oil pressure problems
  37. No power from Northstar on '98 Deville
  38. bosch 4's????
  39. Oil Under Intake Manifold on Northstar
  40. Complicated spark problem on 94/99 Northstar engine
  41. 96 Eldo Warm Eng. Miss No Codes
  42. Every North* blows head gaskets??????
  43. 97 STS P0300 Current/P0603 History SES light
  44. Shift Solenoid "A" and "B" question
  45. whats the difference
  46. Head gaskets on 1993 Allante Northstar
  47. Got codes Help Please
  48. How do I Access OBCII 98 DeVille
  49. good buy?
  50. Fuel Pressure Loss
  51. Crank Sensor--Revisited
  52. Suddenly running rough
  53. Northstar Stalls On Restart
  54. northstar engine swap info
  55. Yep She's A Leaker
  56. Fuel economy post 60k service?
  57. Fuel rail leak--another thorn in the side
  58. anyon know where i can get a chip?
  59. 4.6 running rough at idle in gear
  60. Codes
  61. wat should i do to my car
  62. Annoying engine noise
  63. How long to check codes?
  64. 93 STS Overheated, now idles high. PLEASE HELP
  65. Engine Stalling at traffic light
  66. Coolant Supplement Tablet question
  67. Trans or can it be Electrical
  68. help wilth coede PO23
  69. my 94 SLS code problems help!!
  70. Transmission help!!
  71. Where is the EGR valve located?
  72. clearing codes
  73. How To Fix Clicking Throttle Body
  74. Where can I buy a new EGR valve at a good price?
  75. '98 STS - "Service engine soon" light was on for two days...now off...car runs great
  76. Coolant Flush?
  77. Random Multiple Cylinder Misfire
  78. Idle seems rough.
  79. how to avoid cracked heads?
  80. Can you put in too much coolant?
  81. Dex-Cool
  82. Engine Coolant
  83. Weird?
  84. oil pressure loss "STOP ENGINE" warning FIX
  85. Impossible To Fix Overheating Problem
  86. Leaking coolant? Head gasket???
  87. 4t80-e transmission leakage
  88. Resonator Question..
  89. 96 Eldo Warm Eng. Miss. Acceleration Miss.
  90. How do I retrive codes
  91. Help! Service Emissions Soon and Check Engine
  92. Can you repair the fuel rail
  93. Where to get Northstar computer and harness??
  94. A Little Head
  95. 97 Eldo running weak!
  96. Ok, I've pulled the codes and decoded them...
  97. How do I pull codes off my 97 SLS?
  98. help!!...no start and no power at purple wire
  99. slow return to idle (95 sts)
  100. surging under WOT
  101. where do i get performance chips
  102. EMERGENCY----c1232 and c1255
  103. SUPERCHARGER soon
  104. Fuel Problem. TPS or a cleaning?
  105. Northstar needs engine protectors ?
  106. Spark Plug and Wire Change Summary
  107. Help! 96 STS Stalling and Barely Drives
  108. Bad oil Leak
  109. Is it possible to go from 4.1 to Northstar?
  110. need help on replacing the idle speed control motor
  111. Fuel Rail Replacement 96 sts
  112. ISO mechanic for 95 Seville in NE Illinois/SE Wisconsin
  113. N.Star Deville afermarket Tachometer ?
  114. Northstar Electromotive TEC3 .bin file needed
  115. Blown Head Gasket...Help!!
  116. STS Computer Into Deville?
  117. Frozen Spark Plugs
  118. thanks elwesso,lido
  119. Eldorado Exhaust??
  120. Frenchcad Is Asking For Help To Burn Speed Limit...
  121. car won't start!
  122. 95 STS corrosion
  123. One Dead Deville 1999
  124. 94' SLS t073 erratic idle & stalling
  125. 2000sts trouble codes
  126. check engine soon????????
  127. 99 STS Gas pedal sticking
  128. 94 Northstar question
  129. BG44k
  130. (Pressing gas) CLUNK.. What the heck?
  131. Fuel Additives
  132. Loud Pop
  133. help with some error codes 96 etc.
  134. Increasing Displacement
  135. 4T80E gearing
  136. Holy hell, i tried that Lucus oil additive....
  137. "Stop Engine Low Oil Pressure"
  138. Gas MPG low? and electrical question
  139. need help again, new code
  140. Failed Emission - high HC
  141. Stalling/Starting Problem
  142. 91 vw golf with northstar!!must see
  143. Looking for a source of Northstar Engines
  144. egr
  145. Starter Enable Relay!! Found it, Cleaned it, Fixed it.!!!
  146. Northstar head compatibility
  147. 96 Oil Leak
  148. Parts swapping
  149. Is there a GM TSB for the use of Time-Serts?
  150. 2000 Sts Exhaust
  151. 97 STS eliminate the converter?
  152. Exhaust question
  153. Limp yo-self home, N*!
  154. Trans. Problem?
  155. where is the starter relay, 1993 sts northstar
  156. Transmission flush?
  157. Forum Opinion on 2000 STS
  158. PLEASE!!! -4 and under, lights on,no power to starter!!
  159. dtc pcm 0139 now what?
  160. 1995 sts,manifold cover
  161. Check Coolant Level Message & temp. question
  162. overdrive or drive
  163. Code in history ? P039
  164. Dtc P0101
  165. How to pull engine codes and where to find?
  166. Performance mods!
  167. Diry relief valve causing loss of oil pressure?
  168. 95 STS Water Pump Question.
  169. NOLOGY wires for northstar motors
  170. northstar question
  171. Code SO61? PO83?
  172. Clicking noise
  173. Huge muffler comparison
  174. Fixed the egr valve myself
  175. Does Northstar turn off cylinders like 4-6-8?
  176. Fuel Additives
  177. Problems with N* arise
  178. Diagnostic Code?
  179. Went to a mechanic today on EGR
  180. Thoughts, opinions, and suggestions on carbon deposits.
  181. Year 2000 Northstar 32V engine oil consumption problem?
  182. Spark Plugs
  183. EGR Valve , need help locating it
  184. filling coolant system after flush
  185. Tornado Fuel Saver
  186. EGR valve install question
  187. Where are my O2 Sensors?
  188. PCM? What now
  189. My timesert kit on ebay, reserve at $160!
  190. No speedo!!!
  191. Carbon buildup/ fuel additives/ opinions???
  192. 95 sts starting problems
  193. Should I fix or sell?
  194. could be 1 or 2 things idler pulley or water pump plz help
  195. Northstar driven 94 Pontiac Grand Prix GTP RWD
  196. Leaking Water Pump 1998 Deville
  197. Smoking Northstar!
  198. Engine rebuilt?
  199. Northstar Squealing noise
  200. Oil change
  201. performance exhaust
  202. '94 Concours Hard To Start
  203. P0113/P1111 - then what ?
  204. whast should a 94 north start run temp wise
  205. Changing Serpentine Belt
  206. Custom Intake
  207. Maintaining Northstar Engines *A must Read*
  208. Headgasket replacement finished
  209. N* engine mount bushings...what happens if...
  210. How to remove the belt tensioner?
  211. New Cadillac owner
  212. TO 73 code??????
  213. What are my options?
  214. 2000 DeVille - Stalling
  215. Temp Sensor
  216. Misfirin' 98 DeVille. How much $ is DTC p0300,603,1381 cost?
  217. Temperature sensor - another problem...
  218. 4 Questions / 93 STS w/ 4.6
  219. Lights flicker?
  220. lights that dim when...
  221. Glitch In 97 Concours
  222. alternator replacement part deux
  223. P086 code on 94 STS keep sme from getting it smogged
  224. Calling out 156mph
  225. Cadillac dealer...
  226. ShadowLvr400......
  227. 4.6 northstar / engine, Trans swap ?
  228. TRANSMISSION/Torque convertor problems??? HELP!!!
  229. Nitrous
  230. More on coolant issues....Long post alert!
  231. '95 STS Clearing on-board diagnostic codes
  232. Quick and Simple Question
  233. 2000 STS Oil Life
  234. Calling all North* Specialist....Changing out the Alternator
  235. Service Engine Soon? What's that Noise?
  236. Dashboard mayhem
  237. weird?
  238. Need Technical Help for Engine swaping...
  239. Anyone have an opinion on electric superchargers?
  240. Will '95 coil pack, intake or exhaust fit my '93 N*?
  241. northstar performance upgrades
  242. Exhaust manifold ?
  243. Please help! Considering a '94 Deville Concours N'star
  244. New member, trying to find out if oil burning is ok!
  245. Repair Advice Needed in Orange County, CA
  246. P030 Code on '93 STS
  247. "no battery charge"
  248. "check oil level"
  249. '95 STS showing SES code: P085
  250. Which o2 sensor??