: Northstar Engines and System Technical Discussion



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  1. bottom pulley wabbles
  2. BCM causing rough idle?
  3. Water Pump Drive Pulley
  4. 98 SLS Trans/mounts Questions
  5. So how many people have had overheating/bad head gasket problems?
  6. Car Rides Horribly!
  7. PO85 Fix
  8. NEW exhaust idea...
  9. Northstar vs 4.9
  10. 4T80e questions
  11. check engine light
  12. Rough Idle
  13. More oil consumption
  14. Is it stupid to put in a new engine?????
  15. Advise on De Ville 97
  16. Oil filter
  17. Service Manuals
  18. Transmission Valve (or what the dealer told me)
  19. wierd idle
  20. Miracle fuel additive stopped noise and oil consumption
  21. 95 eldorado oil questions
  22. 95 Harness --> 93 Block/sensors?
  23. Kit Car w/Northstar, Engine VIN codes
  24. EGR Valve and Throttle Body
  25. Heater core?
  26. sticky gas pedal/rough idling/accelerating
  27. Head Bolts????
  28. OEM Liquid Sealant at Case Half Seal?
  29. Throttle Body, Rough Idle
  30. 97 air box mod?
  31. throttle body
  32. Head Gasket Repair - Clean Up of Head, Block & Combustion Chambers?
  33. How good is the 4.6L N*
  34. Seville ECM Codes
  35. Trouble Code on '96 Eldorado
  36. tranny probs need help
  37. Unidentified noise in front driver side wheel on a hard right
  38. spark plug gap?
  39. need timesert kit for my 94 n*
  40. 1993 Northstar engine knock
  41. Code IRC B1771
  42. Excessive Crank Time - Advice Needed
  43. Cost Efficient Mods for '98 STS?
  44. Pls help! How much $ should it cost to repair.....
  45. trouble code retrival
  46. Iridium spark plugs
  47. Sedan Deville Diag Codes: How to interpret?
  48. Boosted caddys
  49. 95 sts,pcm?
  50. Northstar Mechanic
  51. 96 ETC code problems
  52. Codes
  53. Help with Timing Chain Removal
  54. help me with my ....
  55. It just quits (dies) restarts fine.
  56. fuel economy
  57. radiator with holes
  58. supercharged caddy?
  59. A few questions 2
  60. A little more Fuel or air needed.
  61. Is there anywhere to get the specs for a 4.6L Northstar
  62. Brake Fluid Flush
  63. GM part no. for timesert inserts?
  64. God ! please help me before my caddy kills me..
  65. 2000+ NorthStar modified to fit 1994 = success
  66. Lots O'Codes HELP!!!
  67. Coolant Change
  68. cruise control not working properly!
  69. Need help with codes
  70. i smell coolant, is my water pump bad?
  71. Crank micropolishing/where to buy parts?
  72. New Lights
  73. O2 sensor
  74. 95 eldorado Northstar over heats
  75. What to do, what to do...
  76. Main Bearing Replacement?
  77. Rear Main Seal Installer
  78. Looking for a few answers
  79. Help!!!
  80. 94 Seville
  81. My 1996 Sedan Deville won't go over 40 mph?
  82. Northstar and CHRFAB article
  83. 94 eldo compression test
  84. Ignition Wires
  85. Ran my STS again
  86. how long....
  87. 1994 Deville oil pan gasket leak
  88. Leaky oil pan gasket on 94 N* eldo
  89. Service Ride Control and traction control
  90. Some initial worries for 94 eldo tc
  91. some problems
  92. computer readout !!!
  93. Thottle Body
  94. Where to find a Northstar engine
  95. Rough Idel
  96. My 99 STS Overheated
  97. Engine Mounts
  98. oil pan gasket
  99. 94 Deville Concourse Billowing White Smoke
  100. cheap perfomance stuff...
  101. Coolant smell from heater; how screwed am I?
  102. Changing the fuel filter
  103. How to do a tuneup on a North*
  104. '96 SLS: IPC Option C problem
  105. Northstar Oil Usage
  106. Buzzing from turn signal
  107. Engine Data Analysis help
  108. 94 eldorado W/coolant in oil
  109. Growe3, Engine Removal Questions
  110. My .02 on Carbon
  111. N* plugs & wires: DIY or leave it for the pros?
  112. MAP sensor
  113. Lucus Products? Fuel Injector Cleaner
  114. Need Northstar Advic
  115. questions before installing new idle speed motor
  116. 94' Sls Pcm
  117. my first mod
  118. coolant leak - is this a bad fix?
  119. 96 Eldorado Oil leak
  120. Northstar dimensions
  121. Mechanic needs help, NS killing ICM
  122. Just told driveshaft is shot. What should I do?
  123. Timesert kit FS! $130 Shipped!
  124. Is my mechanic pulling a 'fast one'?
  125. Sluggish when driving
  126. 1998 Cai??
  127. Error Codes, Diagnostic Mode, RKE Programming, Owners Manuals, General Info
  128. Error Codes and Diagnostic Mode Explained
  129. Head bolt retorque method recommendation needed
  130. Is New Exhaust Hurting MPG?
  131. 1998 STS A/C Problems
  132. traction control sucks!
  133. tranny troubles in Montana
  134. flashing number on display
  135. Which Fuel Company
  136. Oil pressure problems
  137. No power from Northstar on '98 Deville
  138. bosch 4's????
  139. Oil Under Intake Manifold on Northstar
  140. Complicated spark problem on 94/99 Northstar engine
  141. 96 Eldo Warm Eng. Miss No Codes
  142. Every North* blows head gaskets??????
  143. 97 STS P0300 Current/P0603 History SES light
  144. Shift Solenoid "A" and "B" question
  145. whats the difference
  146. Head gaskets on 1993 Allante Northstar
  147. Got codes Help Please
  148. How do I Access OBCII 98 DeVille
  149. good buy?
  150. Fuel Pressure Loss
  151. Crank Sensor--Revisited
  152. Suddenly running rough
  153. Northstar Stalls On Restart
  154. northstar engine swap info
  155. Yep She's A Leaker
  156. Fuel economy post 60k service?
  157. Fuel rail leak--another thorn in the side
  158. anyon know where i can get a chip?
  159. 4.6 running rough at idle in gear
  160. Codes
  161. wat should i do to my car
  162. Annoying engine noise
  163. How long to check codes?
  164. 93 STS Overheated, now idles high. PLEASE HELP
  165. Engine Stalling at traffic light
  166. Coolant Supplement Tablet question
  167. Trans or can it be Electrical
  168. help wilth coede PO23
  169. my 94 SLS code problems help!!
  170. Transmission help!!
  171. Where is the EGR valve located?
  172. clearing codes
  173. How To Fix Clicking Throttle Body
  174. Where can I buy a new EGR valve at a good price?
  175. '98 STS - "Service engine soon" light was on for two days...now off...car runs great
  176. Coolant Flush?
  177. Random Multiple Cylinder Misfire
  178. Idle seems rough.
  179. how to avoid cracked heads?
  180. Can you put in too much coolant?
  181. Dex-Cool
  182. Engine Coolant
  183. Weird?
  184. oil pressure loss "STOP ENGINE" warning FIX
  185. Impossible To Fix Overheating Problem
  186. Leaking coolant? Head gasket???
  187. 4t80-e transmission leakage
  188. Resonator Question..
  189. 96 Eldo Warm Eng. Miss. Acceleration Miss.
  190. How do I retrive codes
  191. Help! Service Emissions Soon and Check Engine
  192. Can you repair the fuel rail
  193. Where to get Northstar computer and harness??
  194. A Little Head
  195. 97 Eldo running weak!
  196. Ok, I've pulled the codes and decoded them...
  197. How do I pull codes off my 97 SLS?
  198. help!!...no start and no power at purple wire
  199. slow return to idle (95 sts)
  200. surging under WOT
  201. where do i get performance chips
  202. EMERGENCY----c1232 and c1255
  203. SUPERCHARGER soon
  204. Fuel Problem. TPS or a cleaning?
  205. Northstar needs engine protectors ?
  206. Spark Plug and Wire Change Summary
  207. Help! 96 STS Stalling and Barely Drives
  208. Bad oil Leak
  209. Is it possible to go from 4.1 to Northstar?
  210. need help on replacing the idle speed control motor
  211. Fuel Rail Replacement 96 sts
  212. ISO mechanic for 95 Seville in NE Illinois/SE Wisconsin
  213. N.Star Deville afermarket Tachometer ?
  214. Northstar Electromotive TEC3 .bin file needed
  215. Blown Head Gasket...Help!!
  216. STS Computer Into Deville?
  217. Frozen Spark Plugs
  218. thanks elwesso,lido
  219. Eldorado Exhaust??
  220. Frenchcad Is Asking For Help To Burn Speed Limit...
  221. car won't start!
  222. 95 STS corrosion
  223. One Dead Deville 1999
  224. 94' SLS t073 erratic idle & stalling
  225. 2000sts trouble codes
  226. check engine soon????????
  227. 99 STS Gas pedal sticking
  228. 94 Northstar question
  229. BG44k
  230. (Pressing gas) CLUNK.. What the heck?
  231. Fuel Additives
  232. Loud Pop
  233. help with some error codes 96 etc.
  234. Increasing Displacement
  235. 4T80E gearing
  236. Holy hell, i tried that Lucus oil additive....
  237. "Stop Engine Low Oil Pressure"
  238. Gas MPG low? and electrical question
  239. need help again, new code
  240. Failed Emission - high HC
  241. Stalling/Starting Problem
  242. 91 vw golf with northstar!!must see
  243. Looking for a source of Northstar Engines
  244. egr
  245. Starter Enable Relay!! Found it, Cleaned it, Fixed it.!!!
  246. Northstar head compatibility
  247. 96 Oil Leak
  248. Parts swapping
  249. Is there a GM TSB for the use of Time-Serts?
  250. 2000 Sts Exhaust