: Northstar Engines and System Technical Discussion



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  1. Transmission Valve (or what the dealer told me)
  2. wierd idle
  3. Miracle fuel additive stopped noise and oil consumption
  4. 95 eldorado oil questions
  5. 95 Harness --> 93 Block/sensors?
  6. Kit Car w/Northstar, Engine VIN codes
  7. EGR Valve and Throttle Body
  8. Heater core?
  9. sticky gas pedal/rough idling/accelerating
  10. Head Bolts????
  11. OEM Liquid Sealant at Case Half Seal?
  12. Throttle Body, Rough Idle
  13. 97 air box mod?
  14. throttle body
  15. Head Gasket Repair - Clean Up of Head, Block & Combustion Chambers?
  16. How good is the 4.6L N*
  17. Seville ECM Codes
  18. Trouble Code on '96 Eldorado
  19. tranny probs need help
  20. Unidentified noise in front driver side wheel on a hard right
  21. spark plug gap?
  22. need timesert kit for my 94 n*
  23. 1993 Northstar engine knock
  24. Code IRC B1771
  25. Excessive Crank Time - Advice Needed
  26. Cost Efficient Mods for '98 STS?
  27. Pls help! How much $ should it cost to repair.....
  28. trouble code retrival
  29. Iridium spark plugs
  30. Sedan Deville Diag Codes: How to interpret?
  31. Boosted caddys
  32. 95 sts,pcm?
  33. Northstar Mechanic
  34. 96 ETC code problems
  35. Codes
  36. Help with Timing Chain Removal
  37. help me with my ....
  38. It just quits (dies) restarts fine.
  39. fuel economy
  40. radiator with holes
  41. supercharged caddy?
  42. A few questions 2
  43. A little more Fuel or air needed.
  44. Is there anywhere to get the specs for a 4.6L Northstar
  45. Brake Fluid Flush
  46. GM part no. for timesert inserts?
  47. God ! please help me before my caddy kills me..
  48. 2000+ NorthStar modified to fit 1994 = success
  49. Lots O'Codes HELP!!!
  50. Coolant Change
  51. cruise control not working properly!
  52. Need help with codes
  53. i smell coolant, is my water pump bad?
  54. Crank micropolishing/where to buy parts?
  55. New Lights
  56. O2 sensor
  57. 95 eldorado Northstar over heats
  58. What to do, what to do...
  59. Main Bearing Replacement?
  60. Rear Main Seal Installer
  61. Looking for a few answers
  62. Help!!!
  63. 94 Seville
  64. My 1996 Sedan Deville won't go over 40 mph?
  65. Northstar and CHRFAB article
  66. 94 eldo compression test
  67. Ignition Wires
  68. Ran my STS again
  69. how long....
  70. 1994 Deville oil pan gasket leak
  71. Leaky oil pan gasket on 94 N* eldo
  72. Service Ride Control and traction control
  73. Some initial worries for 94 eldo tc
  74. some problems
  75. computer readout !!!
  76. Thottle Body
  77. Where to find a Northstar engine
  78. Rough Idel
  79. My 99 STS Overheated
  80. Engine Mounts
  81. oil pan gasket
  82. 94 Deville Concourse Billowing White Smoke
  83. cheap perfomance stuff...
  84. Coolant smell from heater; how screwed am I?
  85. Changing the fuel filter
  86. How to do a tuneup on a North*
  87. '96 SLS: IPC Option C problem
  88. Northstar Oil Usage
  89. Buzzing from turn signal
  90. Engine Data Analysis help
  91. 94 eldorado W/coolant in oil
  92. Growe3, Engine Removal Questions
  93. My .02 on Carbon
  94. N* plugs & wires: DIY or leave it for the pros?
  95. MAP sensor
  96. Lucus Products? Fuel Injector Cleaner
  97. Need Northstar Advic
  98. questions before installing new idle speed motor
  99. 94' Sls Pcm
  100. my first mod
  101. coolant leak - is this a bad fix?
  102. 96 Eldorado Oil leak
  103. Northstar dimensions
  104. Mechanic needs help, NS killing ICM
  105. Just told driveshaft is shot. What should I do?
  106. Timesert kit FS! $130 Shipped!
  107. Is my mechanic pulling a 'fast one'?
  108. Sluggish when driving
  109. 1998 Cai??
  110. Error Codes, Diagnostic Mode, RKE Programming, Owners Manuals, General Info
  111. Error Codes and Diagnostic Mode Explained
  112. Head bolt retorque method recommendation needed
  113. Is New Exhaust Hurting MPG?
  114. 1998 STS A/C Problems
  115. traction control sucks!
  116. tranny troubles in Montana
  117. flashing number on display
  118. Which Fuel Company
  119. Oil pressure problems
  120. No power from Northstar on '98 Deville
  121. bosch 4's????
  122. Oil Under Intake Manifold on Northstar
  123. Complicated spark problem on 94/99 Northstar engine
  124. 96 Eldo Warm Eng. Miss No Codes
  125. Every North* blows head gaskets??????
  126. 97 STS P0300 Current/P0603 History SES light
  127. Shift Solenoid "A" and "B" question
  128. whats the difference
  129. Head gaskets on 1993 Allante Northstar
  130. Got codes Help Please
  131. How do I Access OBCII 98 DeVille
  132. good buy?
  133. Fuel Pressure Loss
  134. Crank Sensor--Revisited
  135. Suddenly running rough
  136. Northstar Stalls On Restart
  137. northstar engine swap info
  138. Yep She's A Leaker
  139. Fuel economy post 60k service?
  140. Fuel rail leak--another thorn in the side
  141. anyon know where i can get a chip?
  142. 4.6 running rough at idle in gear
  143. Codes
  144. wat should i do to my car
  145. Annoying engine noise
  146. How long to check codes?
  147. 93 STS Overheated, now idles high. PLEASE HELP
  148. Engine Stalling at traffic light
  149. Coolant Supplement Tablet question
  150. Trans or can it be Electrical
  151. help wilth coede PO23
  152. my 94 SLS code problems help!!
  153. Transmission help!!
  154. Where is the EGR valve located?
  155. clearing codes
  156. How To Fix Clicking Throttle Body
  157. Where can I buy a new EGR valve at a good price?
  158. '98 STS - "Service engine soon" light was on for two days...now off...car runs great
  159. Coolant Flush?
  160. Random Multiple Cylinder Misfire
  161. Idle seems rough.
  162. how to avoid cracked heads?
  163. Can you put in too much coolant?
  164. Dex-Cool
  165. Engine Coolant
  166. Weird?
  167. oil pressure loss "STOP ENGINE" warning FIX
  168. Impossible To Fix Overheating Problem
  169. Leaking coolant? Head gasket???
  170. 4t80-e transmission leakage
  171. Resonator Question..
  172. 96 Eldo Warm Eng. Miss. Acceleration Miss.
  173. How do I retrive codes
  174. Help! Service Emissions Soon and Check Engine
  175. Can you repair the fuel rail
  176. Where to get Northstar computer and harness??
  177. A Little Head
  178. 97 Eldo running weak!
  179. Ok, I've pulled the codes and decoded them...
  180. How do I pull codes off my 97 SLS?
  181. help!!...no start and no power at purple wire
  182. slow return to idle (95 sts)
  183. surging under WOT
  184. where do i get performance chips
  185. EMERGENCY----c1232 and c1255
  186. SUPERCHARGER soon
  187. Fuel Problem. TPS or a cleaning?
  188. Northstar needs engine protectors ?
  189. Spark Plug and Wire Change Summary
  190. Help! 96 STS Stalling and Barely Drives
  191. Bad oil Leak
  192. Is it possible to go from 4.1 to Northstar?
  193. need help on replacing the idle speed control motor
  194. Fuel Rail Replacement 96 sts
  195. ISO mechanic for 95 Seville in NE Illinois/SE Wisconsin
  196. N.Star Deville afermarket Tachometer ?
  197. Northstar Electromotive TEC3 .bin file needed
  198. Blown Head Gasket...Help!!
  199. STS Computer Into Deville?
  200. Frozen Spark Plugs
  201. thanks elwesso,lido
  202. Eldorado Exhaust??
  203. Frenchcad Is Asking For Help To Burn Speed Limit...
  204. car won't start!
  205. 95 STS corrosion
  206. One Dead Deville 1999
  207. 94' SLS t073 erratic idle & stalling
  208. 2000sts trouble codes
  209. check engine soon????????
  210. 99 STS Gas pedal sticking
  211. 94 Northstar question
  212. BG44k
  213. (Pressing gas) CLUNK.. What the heck?
  214. Fuel Additives
  215. Loud Pop
  216. help with some error codes 96 etc.
  217. Increasing Displacement
  218. 4T80E gearing
  219. Holy hell, i tried that Lucus oil additive....
  220. "Stop Engine Low Oil Pressure"
  221. Gas MPG low? and electrical question
  222. need help again, new code
  223. Failed Emission - high HC
  224. Stalling/Starting Problem
  225. 91 vw golf with northstar!!must see
  226. Looking for a source of Northstar Engines
  227. egr
  228. Starter Enable Relay!! Found it, Cleaned it, Fixed it.!!!
  229. Northstar head compatibility
  230. 96 Oil Leak
  231. Parts swapping
  232. Is there a GM TSB for the use of Time-Serts?
  233. 2000 Sts Exhaust
  234. 97 STS eliminate the converter?
  235. Exhaust question
  236. Limp yo-self home, N*!
  237. Trans. Problem?
  238. where is the starter relay, 1993 sts northstar
  239. Transmission flush?
  240. Forum Opinion on 2000 STS
  241. PLEASE!!! -4 and under, lights on,no power to starter!!
  242. dtc pcm 0139 now what?
  243. 1995 sts,manifold cover
  244. Check Coolant Level Message & temp. question
  245. overdrive or drive
  246. Code in history ? P039
  247. Dtc P0101
  248. How to pull engine codes and where to find?
  249. Performance mods!
  250. Diry relief valve causing loss of oil pressure?