: Northstar Engines and System Technical Discussion



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  1. NEW exhaust idea...
  2. Northstar vs 4.9
  3. 4T80e questions
  4. check engine light
  5. Rough Idle
  6. More oil consumption
  7. Is it stupid to put in a new engine?????
  8. Advise on De Ville 97
  9. Oil filter
  10. Service Manuals
  11. Transmission Valve (or what the dealer told me)
  12. wierd idle
  13. Miracle fuel additive stopped noise and oil consumption
  14. 95 eldorado oil questions
  15. 95 Harness --> 93 Block/sensors?
  16. Kit Car w/Northstar, Engine VIN codes
  17. EGR Valve and Throttle Body
  18. Heater core?
  19. sticky gas pedal/rough idling/accelerating
  20. Head Bolts????
  21. OEM Liquid Sealant at Case Half Seal?
  22. Throttle Body, Rough Idle
  23. 97 air box mod?
  24. throttle body
  25. Head Gasket Repair - Clean Up of Head, Block & Combustion Chambers?
  26. How good is the 4.6L N*
  27. Seville ECM Codes
  28. Trouble Code on '96 Eldorado
  29. tranny probs need help
  30. Unidentified noise in front driver side wheel on a hard right
  31. spark plug gap?
  32. need timesert kit for my 94 n*
  33. 1993 Northstar engine knock
  34. Code IRC B1771
  35. Excessive Crank Time - Advice Needed
  36. Cost Efficient Mods for '98 STS?
  37. Pls help! How much $ should it cost to repair.....
  38. trouble code retrival
  39. Iridium spark plugs
  40. Sedan Deville Diag Codes: How to interpret?
  41. Boosted caddys
  42. 95 sts,pcm?
  43. Northstar Mechanic
  44. 96 ETC code problems
  45. Codes
  46. Help with Timing Chain Removal
  47. help me with my ....
  48. It just quits (dies) restarts fine.
  49. fuel economy
  50. radiator with holes
  51. supercharged caddy?
  52. A few questions 2
  53. A little more Fuel or air needed.
  54. Is there anywhere to get the specs for a 4.6L Northstar
  55. Brake Fluid Flush
  56. GM part no. for timesert inserts?
  57. God ! please help me before my caddy kills me..
  58. 2000+ NorthStar modified to fit 1994 = success
  59. Lots O'Codes HELP!!!
  60. Coolant Change
  61. cruise control not working properly!
  62. Need help with codes
  63. i smell coolant, is my water pump bad?
  64. Crank micropolishing/where to buy parts?
  65. New Lights
  66. O2 sensor
  67. 95 eldorado Northstar over heats
  68. What to do, what to do...
  69. Main Bearing Replacement?
  70. Rear Main Seal Installer
  71. Looking for a few answers
  72. Help!!!
  73. 94 Seville
  74. My 1996 Sedan Deville won't go over 40 mph?
  75. Northstar and CHRFAB article
  76. 94 eldo compression test
  77. Ignition Wires
  78. Ran my STS again
  79. how long....
  80. 1994 Deville oil pan gasket leak
  81. Leaky oil pan gasket on 94 N* eldo
  82. Service Ride Control and traction control
  83. Some initial worries for 94 eldo tc
  84. some problems
  85. computer readout !!!
  86. Thottle Body
  87. Where to find a Northstar engine
  88. Rough Idel
  89. My 99 STS Overheated
  90. Engine Mounts
  91. oil pan gasket
  92. 94 Deville Concourse Billowing White Smoke
  93. cheap perfomance stuff...
  94. Coolant smell from heater; how screwed am I?
  95. Changing the fuel filter
  96. How to do a tuneup on a North*
  97. '96 SLS: IPC Option C problem
  98. Northstar Oil Usage
  99. Buzzing from turn signal
  100. Engine Data Analysis help
  101. 94 eldorado W/coolant in oil
  102. Growe3, Engine Removal Questions
  103. My .02 on Carbon
  104. N* plugs & wires: DIY or leave it for the pros?
  105. MAP sensor
  106. Lucus Products? Fuel Injector Cleaner
  107. Need Northstar Advic
  108. questions before installing new idle speed motor
  109. 94' Sls Pcm
  110. my first mod
  111. coolant leak - is this a bad fix?
  112. 96 Eldorado Oil leak
  113. Northstar dimensions
  114. Mechanic needs help, NS killing ICM
  115. Just told driveshaft is shot. What should I do?
  116. Timesert kit FS! $130 Shipped!
  117. Is my mechanic pulling a 'fast one'?
  118. Sluggish when driving
  119. 1998 Cai??
  120. Error Codes, Diagnostic Mode, RKE Programming, Owners Manuals, General Info
  121. Error Codes and Diagnostic Mode Explained
  122. Head bolt retorque method recommendation needed
  123. Is New Exhaust Hurting MPG?
  124. 1998 STS A/C Problems
  125. traction control sucks!
  126. tranny troubles in Montana
  127. flashing number on display
  128. Which Fuel Company
  129. Oil pressure problems
  130. No power from Northstar on '98 Deville
  131. bosch 4's????
  132. Oil Under Intake Manifold on Northstar
  133. Complicated spark problem on 94/99 Northstar engine
  134. 96 Eldo Warm Eng. Miss No Codes
  135. Every North* blows head gaskets??????
  136. 97 STS P0300 Current/P0603 History SES light
  137. Shift Solenoid "A" and "B" question
  138. whats the difference
  139. Head gaskets on 1993 Allante Northstar
  140. Got codes Help Please
  141. How do I Access OBCII 98 DeVille
  142. good buy?
  143. Fuel Pressure Loss
  144. Crank Sensor--Revisited
  145. Suddenly running rough
  146. Northstar Stalls On Restart
  147. northstar engine swap info
  148. Yep She's A Leaker
  149. Fuel economy post 60k service?
  150. Fuel rail leak--another thorn in the side
  151. anyon know where i can get a chip?
  152. 4.6 running rough at idle in gear
  153. Codes
  154. wat should i do to my car
  155. Annoying engine noise
  156. How long to check codes?
  157. 93 STS Overheated, now idles high. PLEASE HELP
  158. Engine Stalling at traffic light
  159. Coolant Supplement Tablet question
  160. Trans or can it be Electrical
  161. help wilth coede PO23
  162. my 94 SLS code problems help!!
  163. Transmission help!!
  164. Where is the EGR valve located?
  165. clearing codes
  166. How To Fix Clicking Throttle Body
  167. Where can I buy a new EGR valve at a good price?
  168. '98 STS - "Service engine soon" light was on for two days...now off...car runs great
  169. Coolant Flush?
  170. Random Multiple Cylinder Misfire
  171. Idle seems rough.
  172. how to avoid cracked heads?
  173. Can you put in too much coolant?
  174. Dex-Cool
  175. Engine Coolant
  176. Weird?
  177. oil pressure loss "STOP ENGINE" warning FIX
  178. Impossible To Fix Overheating Problem
  179. Leaking coolant? Head gasket???
  180. 4t80-e transmission leakage
  181. Resonator Question..
  182. 96 Eldo Warm Eng. Miss. Acceleration Miss.
  183. How do I retrive codes
  184. Help! Service Emissions Soon and Check Engine
  185. Can you repair the fuel rail
  186. Where to get Northstar computer and harness??
  187. A Little Head
  188. 97 Eldo running weak!
  189. Ok, I've pulled the codes and decoded them...
  190. How do I pull codes off my 97 SLS?
  191. help!!...no start and no power at purple wire
  192. slow return to idle (95 sts)
  193. surging under WOT
  194. where do i get performance chips
  195. EMERGENCY----c1232 and c1255
  196. SUPERCHARGER soon
  197. Fuel Problem. TPS or a cleaning?
  198. Northstar needs engine protectors ?
  199. Spark Plug and Wire Change Summary
  200. Help! 96 STS Stalling and Barely Drives
  201. Bad oil Leak
  202. Is it possible to go from 4.1 to Northstar?
  203. need help on replacing the idle speed control motor
  204. Fuel Rail Replacement 96 sts
  205. ISO mechanic for 95 Seville in NE Illinois/SE Wisconsin
  206. N.Star Deville afermarket Tachometer ?
  207. Northstar Electromotive TEC3 .bin file needed
  208. Blown Head Gasket...Help!!
  209. STS Computer Into Deville?
  210. Frozen Spark Plugs
  211. thanks elwesso,lido
  212. Eldorado Exhaust??
  213. Frenchcad Is Asking For Help To Burn Speed Limit...
  214. car won't start!
  215. 95 STS corrosion
  216. One Dead Deville 1999
  217. 94' SLS t073 erratic idle & stalling
  218. 2000sts trouble codes
  219. check engine soon????????
  220. 99 STS Gas pedal sticking
  221. 94 Northstar question
  222. BG44k
  223. (Pressing gas) CLUNK.. What the heck?
  224. Fuel Additives
  225. Loud Pop
  226. help with some error codes 96 etc.
  227. Increasing Displacement
  228. 4T80E gearing
  229. Holy hell, i tried that Lucus oil additive....
  230. "Stop Engine Low Oil Pressure"
  231. Gas MPG low? and electrical question
  232. need help again, new code
  233. Failed Emission - high HC
  234. Stalling/Starting Problem
  235. 91 vw golf with northstar!!must see
  236. Looking for a source of Northstar Engines
  237. egr
  238. Starter Enable Relay!! Found it, Cleaned it, Fixed it.!!!
  239. Northstar head compatibility
  240. 96 Oil Leak
  241. Parts swapping
  242. Is there a GM TSB for the use of Time-Serts?
  243. 2000 Sts Exhaust
  244. 97 STS eliminate the converter?
  245. Exhaust question
  246. Limp yo-self home, N*!
  247. Trans. Problem?
  248. where is the starter relay, 1993 sts northstar
  249. Transmission flush?
  250. Forum Opinion on 2000 STS