: Northstar Engines and System Technical Discussion



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  1. northstar battery
  2. 94 eldorado bad starter possibly?
  3. Starter change 94 SLS
  4. What's happening to the messages display?
  5. Day after alternator replace, now I need a new belt...coincidence?
  6. block off EGR
  7. Transmisson monitor??
  8. Water pump leak??
  9. Will machined heads mess up the ECU due to increased compression ?
  10. The Turbonator
  11. 96 STS engine swap
  12. Ok explain this.............
  13. Oil on sparkplugs??
  14. need help 96 deville
  15. North Star Temperature
  16. History Codes ??? & P0420
  17. VSS....how hard is it to change?
  18. Engine is not cranking - starter is fine
  19. Oil Leak
  20. Is head gasket a common problem with sts
  21. Please Help!!!!!!!!!
  22. Im running with no suppliment....
  23. Whirring noise.....you thinks its the alternator?
  24. Wot?
  25. 5W30 vs 10W30, pre 2000 Northstar 84 degree weather
  26. Thermagasket, cylinder head repair goop
  27. Head Gasket Repair - DIY?
  28. 4T80E heartbreak with pictures
  29. N* Replacement
  30. Northstar Motor Mechanic From Dealer
  31. Fuel Pump 95 SLS
  32. Minor value cover (head cover) leaks???Concern???
  33. N* Head Gasket Job, What parts should i BUY
  34. Jasper Engines HEAT TAB
  35. Head Gaskets Again !?!?
  36. 96 deville codes/very sluggish start
  37. n* experts chime in
  38. NorthStar Supercharger!!!
  39. 1997 Deville Coolant Flush
  40. I think i got this Traction Control thing figured out!
  41. Northstar Brainteaser
  42. New Northstar in 2008? Ultra?
  43. Service Engine Light and history codes
  44. Whats code 94?
  45. DIY Replace Coolant for 94 STS
  46. Lower Crankcase Reseal
  47. PC0300 with troubleshoot. Coil Resistance?
  48. '94 Eldorado Coolant change. Help!
  49. Squeaking belt noise - Help!
  50. oil change timing
  51. changed FPR now P0507 code?
  52. need help with water pump.
  53. Fix it or not? Head Gasket.
  54. Future 1996 STS buyer
  55. update on Polyisobutylene
  56. So, I took it to Cottman........
  57. 03 DTS Major Tune Up
  58. Codes, Codes, and more codes....
  59. First WOT on Grandma Owned N*
  60. Tech Manual
  61. What are the performance number of the SLS,DHS
  62. 98 Seville engine mount
  63. N* all OBDII?
  64. EGR Valve Cleaning and Location
  65. How To Replace O2 Sensor Bank 1 Sensor 1
  66. 93 Eldo transaxle
  67. Intake Bolts
  68. Fuel rail/line recall
  69. Saw an interesting Swap today.... (56k take a nap)
  70. Need some help from someone with a 96-99 manual
  71. Not enough WOTs?
  72. another problem solved! N* stutter gone
  73. Coolant Eats Gasket?
  74. Starter Idiocy?
  75. Have you tried Polyisobutylene ??
  76. How to Remove EGR Valve
  77. Granatelli Trans Tuner - Anyone try this?
  78. Granatelli Trans Tuner - Anyone try this?
  79. Performance Survey - New Owner - Seeking Ideas
  80. 94 STS - Throttle Plate Orientation
  81. cruise linkage
  82. 95 STS hi-rpm and auto-acceleration problem
  83. Data on the northstar
  84. Buy a N* with a blown head gasket - Dumb idea?
  85. Weird Idle Issues
  86. 1994 Concourse stuttering
  87. Cooling Fans
  88. Coolant supplement clogged T stat
  89. ghost in the machine
  90. Turbo STS Dyno results
  91. PCM Source
  92. 99 Deville misfire and fuel sensor
  93. Learning about Torque Convertor and solenoid
  94. Casper Electronics TPS Enhancer
  95. What year Nstars fit '99 Deville?
  96. Help:Crankshaft Sensor Replacement
  97. Torque convertor can damage the solenoids?
  98. What will it take to get you to buy a 80mm throttle body?
  99. Is this a "freeze plug"?
  100. Is this a 95 intake?
  101. Weird Hydraulic whine, maybe tranny????
  102. # 8 misfire
  103. where are the plugs on my 03 dhs northstar engine?
  104. Water Leak
  105. 4T80E vs Dexron VI, GM new standard
  106. 200,000 mile mark reality? 1996 STS NStar
  107. It wasnt a hole in the block!!!!!
  108. Just Bought a Granma owned NS w/81K-WOT?
  109. please help!?!?!?!?!
  110. High volt MAP
  111. Rough Idle and Stuttering Acceleration
  112. 94 seville sls oil pan gasket replacement...
  113. 97 headgaskets what else should be done?
  114. Differences in the Northstar engines
  115. PCM info for NorthStar
  116. accessing rear spark plugs
  117. 99 STS Turbo charged video
  118. 1994 Eldorado P083 Code?
  119. Looking for help with Codes
  120. What's this noise....
  121. How do you I.D. an engine?
  122. Expansion tank leaking...
  123. Engine ID
  124. 1994 eldorado fuel pump
  125. unchanged SP wires longevity?
  126. Launch Control for N* ignition
  127. coolant loss
  128. Can I fix my 01 Northstar myself?
  129. Turbo WOT 7psi to REDLINE
  130. 0101 MAF-continues
  131. Turbo Update
  132. changing out o2 sensor on 97 deville
  133. P0404 - Exhaust Gas Recirculation (EGR) Open Position Performance?
  134. deciphering DTC messages into plain English
  135. Cylinder Head Info!
  136. Northstar noise
  137. Best Code Reader/Scanner?
  138. EGR change w/ SS fuel rail- trick maybe
  139. Where is the INPUT SPEED SENSOR?
  140. 97 deville fuel problem
  141. GM coolant additive???
  142. Car wont start
  143. Serpentine belt
  144. no overdrive in my 98 eldo
  145. Really Head Gasket?
  146. New plugs and wires, now misfire
  147. STS Tranny trouble
  148. Improper Sparg plug gap, what happens?
  149. 94 STS hesitates or stumbles
  150. Need a Timesert kit
  151. its been a little while but i am back for good!!
  152. Stalls after fill-up
  153. High Oil Consumption *INFO*
  154. I got porked...Blown N*.
  155. Glowing red exhaust manifolds
  156. Pop Off / Backfire Valve Replacement
  157. fuel filter location?
  158. Pictures of Turbo Project
  159. Head gasket compressed thickness
  160. Emission Codes
  161. Extremely Rough Idle... Cracked Intake Manifold?
  162. Spark Plug Gap
  163. Biggest Problems with the N*'s?
  164. 1999 STS - Timesert question
  165. Gurgling Sound/ Trapped Air in Coolant System
  166. Injector
  167. 95 Deville howl's near the belt
  168. 97 deville N* head gasket costs?????
  169. No overdive
  170. Emmissions Codes
  171. One gear, LIMP MODE? NO CODES
  172. 2000 Deville TCC PWM replacement
  173. p056
  174. 98 Northstar Fuel Rail Recall
  175. Removing bad FPR
  176. '95 Eldorado start-up getting more "difficult"
  177. 93 Northstar Headgasket - Can I do it myself?
  178. Reliability and longevity of a 97 N* motor?
  179. Gas-saving gadgets article
  180. Crank Position Sensor
  181. 1993 1994 Northstar Intake Manifold
  182. How do I spot a head gasket starting to go?
  183. 97 deville radiator drain
  184. N* with code p041
  185. Intake mod
  186. Cold Start Backfire from 97 N*?
  187. OBD2 computer interface
  188. Jasper Verses OEM
  189. 1996 Eldorado Codes
  190. Piston Slap ?
  191. P0420 Code
  192. Northstar oil pump
  193. N*4.6 vibration problem
  194. Cooling system question
  195. Need an engine teardown pic...
  196. Cam Cover Gasket / o-ring replacement
  197. changing altn
  198. Reflash PCM on 96
  199. Link From Consumer Affairs to Dexcool Lawsuit Atty.
  200. Timesert Kit Needed Asap!!!
  201. Failed Emissions Test- But No Codes
  202. fpr fpr
  203. 1999 Northstar with blown head gasket
  204. Water pump??
  205. plugs and wires
  206. Changed TPS on 95 STS d/t P020, now MIL & P080
  207. throttle body cleaning was the answer
  208. Now having trouble in a different way
  209. 200 Deville occasionally won't Idle when starting warm
  210. P1406 Code? EGR?
  211. idle relearn and isc adjust
  212. 1993 Fuel Psi regulator
  213. Cracked Engine Block in 2001 DeVille
  214. 93 -99 N* vs 2000 - 2004, which is better
  215. motor mount...and more
  216. 97 deville leakin trans fluid
  217. MAF replacement
  218. too hot and too cold
  219. Does anybody here have full access to TSB info at alldata?
  220. Overheat SOLVED ! Thank You Ranger & Others
  221. '95 Northstar 4.6 oil leak
  222. Northstar Blower Motor For Sale
  223. 96 Deville running hot
  224. 97 deville stalling, no codes
  225. Changing Spark Plugs- '99 STS
  226. 94 sls overheating,maybe...
  227. I see a lot of posts on supercharging a Northstar
  228. How to get more torque, 03-DTS
  229. Replace or fix
  230. Typical NOOB questions...
  231. Northstar intake manifold
  232. Northstar intake manifold
  233. hey zonie or ranger,
  234. Losing Coolant & Radiator Leakage
  235. ac delco plugs..<-1999 and 2000-> years, whats the difference?
  236. Delco VS Bosch Plug Wires
  237. Oil "Blow By"
  238. Coming 6 speed automatic
  239. WOT - is this the ONLY way to remove carbon buildup?
  240. New source for 80mm throttle bodies!
  241. Is It A Head Gasket???
  242. Jasper Engines
  243. Confused about spark plug type
  244. Surge Tank Design
  245. Stranded out of town!!!
  246. Speed limiter
  247. cams in a northstar
  248. acceleration troubles...
  249. Coolant crossover photos
  250. P0300 Vote!