: Northstar Engines and System Technical Discussion



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