: Northstar Engines and System Technical Discussion



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