: Northstar Engines and System Technical Discussion



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