: Northstar Engines and System Technical Discussion



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  1. 94 Eldorado Power Steering Fluid?
  2. Big Serts installation
  3. lifter noise?
  4. Some advice
  5. Overheat, Part 2
  6. 2000 STS MAP sensor voltage high?
  7. FRP Help!! ASAP!!
  8. Overheat!
  9. 1999 Eldorado won't start and left me stranded
  10. Anyone use "regular" plug wires in N*?
  11. Higher Stall Converter...
  12. i think i found a fuel control system.
  13. 94 SLS radiator hydraulic line
  14. K&N Intake...I want one!
  15. ABS wiring diagram
  16. What are the available Northstar aftermarket performance parts?
  17. Northstar Oil Leak
  18. Northstar in the 1997-1999 Deville.. questions.
  19. N* with nitrous.
  20. 5000 mile or wait for oil life trigger?
  21. Hi Flow Cat converter to go with Corsa Exhaust, which one?
  22. MSD coils? I hit 104
  23. eldorado1- throttle body for 94 eldo available?
  24. need IAC, TPS, MAP sensors?
  25. 4.6 caddy vs. olds 4.0
  26. Has anyone here added performance parts to a 94 eldorado
  27. Bad coil packs or what?
  28. northstar battery
  29. 94 eldorado bad starter possibly?
  30. Starter change 94 SLS
  31. What's happening to the messages display?
  32. Day after alternator replace, now I need a new belt...coincidence?
  33. block off EGR
  34. Transmisson monitor??
  35. Water pump leak??
  36. Will machined heads mess up the ECU due to increased compression ?
  37. The Turbonator
  38. 96 STS engine swap
  39. Ok explain this.............
  40. Oil on sparkplugs??
  41. need help 96 deville
  42. North Star Temperature
  43. History Codes ??? & P0420
  44. VSS....how hard is it to change?
  45. Engine is not cranking - starter is fine
  46. Oil Leak
  47. Is head gasket a common problem with sts
  48. Please Help!!!!!!!!!
  49. Im running with no suppliment....
  50. Whirring noise.....you thinks its the alternator?
  51. Wot?
  52. 5W30 vs 10W30, pre 2000 Northstar 84 degree weather
  53. Thermagasket, cylinder head repair goop
  54. Head Gasket Repair - DIY?
  55. 4T80E heartbreak with pictures
  56. N* Replacement
  57. Northstar Motor Mechanic From Dealer
  58. Fuel Pump 95 SLS
  59. Minor value cover (head cover) leaks???Concern???
  60. N* Head Gasket Job, What parts should i BUY
  61. Jasper Engines HEAT TAB
  62. Head Gaskets Again !?!?
  63. 96 deville codes/very sluggish start
  64. n* experts chime in
  65. NorthStar Supercharger!!!
  66. 1997 Deville Coolant Flush
  67. I think i got this Traction Control thing figured out!
  68. Northstar Brainteaser
  69. New Northstar in 2008? Ultra?
  70. Service Engine Light and history codes
  71. Whats code 94?
  72. DIY Replace Coolant for 94 STS
  73. Lower Crankcase Reseal
  74. PC0300 with troubleshoot. Coil Resistance?
  75. '94 Eldorado Coolant change. Help!
  76. Squeaking belt noise - Help!
  77. oil change timing
  78. changed FPR now P0507 code?
  79. need help with water pump.
  80. Fix it or not? Head Gasket.
  81. Future 1996 STS buyer
  82. update on Polyisobutylene
  83. So, I took it to Cottman........
  84. 03 DTS Major Tune Up
  85. Codes, Codes, and more codes....
  86. First WOT on Grandma Owned N*
  87. Tech Manual
  88. What are the performance number of the SLS,DHS
  89. 98 Seville engine mount
  90. N* all OBDII?
  91. EGR Valve Cleaning and Location
  92. How To Replace O2 Sensor Bank 1 Sensor 1
  93. 93 Eldo transaxle
  94. Intake Bolts
  95. Fuel rail/line recall
  96. Saw an interesting Swap today.... (56k take a nap)
  97. Need some help from someone with a 96-99 manual
  98. Not enough WOTs?
  99. another problem solved! N* stutter gone
  100. Coolant Eats Gasket?
  101. Starter Idiocy?
  102. Have you tried Polyisobutylene ??
  103. How to Remove EGR Valve
  104. Granatelli Trans Tuner - Anyone try this?
  105. Granatelli Trans Tuner - Anyone try this?
  106. Performance Survey - New Owner - Seeking Ideas
  107. 94 STS - Throttle Plate Orientation
  108. cruise linkage
  109. 95 STS hi-rpm and auto-acceleration problem
  110. Data on the northstar
  111. Buy a N* with a blown head gasket - Dumb idea?
  112. Weird Idle Issues
  113. 1994 Concourse stuttering
  114. Cooling Fans
  115. Coolant supplement clogged T stat
  116. ghost in the machine
  117. Turbo STS Dyno results
  118. PCM Source
  119. 99 Deville misfire and fuel sensor
  120. Learning about Torque Convertor and solenoid
  121. Casper Electronics TPS Enhancer
  122. What year Nstars fit '99 Deville?
  123. Help:Crankshaft Sensor Replacement
  124. Torque convertor can damage the solenoids?
  125. What will it take to get you to buy a 80mm throttle body?
  126. Is this a "freeze plug"?
  127. Is this a 95 intake?
  128. Weird Hydraulic whine, maybe tranny????
  129. # 8 misfire
  130. where are the plugs on my 03 dhs northstar engine?
  131. Water Leak
  132. 4T80E vs Dexron VI, GM new standard
  133. 200,000 mile mark reality? 1996 STS NStar
  134. It wasnt a hole in the block!!!!!
  135. Just Bought a Granma owned NS w/81K-WOT?
  136. please help!?!?!?!?!
  137. High volt MAP
  138. Rough Idle and Stuttering Acceleration
  139. 94 seville sls oil pan gasket replacement...
  140. 97 headgaskets what else should be done?
  141. Differences in the Northstar engines
  142. PCM info for NorthStar
  143. accessing rear spark plugs
  144. 99 STS Turbo charged video
  145. 1994 Eldorado P083 Code?
  146. Looking for help with Codes
  147. What's this noise....
  148. How do you I.D. an engine?
  149. Expansion tank leaking...
  150. Engine ID
  151. 1994 eldorado fuel pump
  152. unchanged SP wires longevity?
  153. Launch Control for N* ignition
  154. coolant loss
  155. Can I fix my 01 Northstar myself?
  156. Turbo WOT 7psi to REDLINE
  157. 0101 MAF-continues
  158. Turbo Update
  159. changing out o2 sensor on 97 deville
  160. P0404 - Exhaust Gas Recirculation (EGR) Open Position Performance?
  161. deciphering DTC messages into plain English
  162. Cylinder Head Info!
  163. Northstar noise
  164. Best Code Reader/Scanner?
  165. EGR change w/ SS fuel rail- trick maybe
  166. Where is the INPUT SPEED SENSOR?
  167. 97 deville fuel problem
  168. GM coolant additive???
  169. Car wont start
  170. Serpentine belt
  171. no overdrive in my 98 eldo
  172. Really Head Gasket?
  173. New plugs and wires, now misfire
  174. STS Tranny trouble
  175. Improper Sparg plug gap, what happens?
  176. 94 STS hesitates or stumbles
  177. Need a Timesert kit
  178. its been a little while but i am back for good!!
  179. Stalls after fill-up
  180. High Oil Consumption *INFO*
  181. I got porked...Blown N*.
  182. Glowing red exhaust manifolds
  183. Pop Off / Backfire Valve Replacement
  184. fuel filter location?
  185. Pictures of Turbo Project
  186. Head gasket compressed thickness
  187. Emission Codes
  188. Extremely Rough Idle... Cracked Intake Manifold?
  189. Spark Plug Gap
  190. Biggest Problems with the N*'s?
  191. 1999 STS - Timesert question
  192. Gurgling Sound/ Trapped Air in Coolant System
  193. Injector
  194. 95 Deville howl's near the belt
  195. 97 deville N* head gasket costs?????
  196. No overdive
  197. Emmissions Codes
  198. One gear, LIMP MODE? NO CODES
  199. 2000 Deville TCC PWM replacement
  200. p056
  201. 98 Northstar Fuel Rail Recall
  202. Removing bad FPR
  203. '95 Eldorado start-up getting more "difficult"
  204. 93 Northstar Headgasket - Can I do it myself?
  205. Reliability and longevity of a 97 N* motor?
  206. Gas-saving gadgets article
  207. Crank Position Sensor
  208. 1993 1994 Northstar Intake Manifold
  209. How do I spot a head gasket starting to go?
  210. 97 deville radiator drain
  211. N* with code p041
  212. Intake mod
  213. Cold Start Backfire from 97 N*?
  214. OBD2 computer interface
  215. Jasper Verses OEM
  216. 1996 Eldorado Codes
  217. Piston Slap ?
  218. P0420 Code
  219. Northstar oil pump
  220. N*4.6 vibration problem
  221. Cooling system question
  222. Need an engine teardown pic...
  223. Cam Cover Gasket / o-ring replacement
  224. changing altn
  225. Reflash PCM on 96
  226. Link From Consumer Affairs to Dexcool Lawsuit Atty.
  227. Timesert Kit Needed Asap!!!
  228. Failed Emissions Test- But No Codes
  229. fpr fpr
  230. 1999 Northstar with blown head gasket
  231. Water pump??
  232. plugs and wires
  233. Changed TPS on 95 STS d/t P020, now MIL & P080
  234. throttle body cleaning was the answer
  235. Now having trouble in a different way
  236. 200 Deville occasionally won't Idle when starting warm
  237. P1406 Code? EGR?
  238. idle relearn and isc adjust
  239. 1993 Fuel Psi regulator
  240. Cracked Engine Block in 2001 DeVille
  241. 93 -99 N* vs 2000 - 2004, which is better
  242. motor mount...and more
  243. 97 deville leakin trans fluid
  244. MAF replacement
  245. too hot and too cold
  246. Does anybody here have full access to TSB info at alldata?
  247. Overheat SOLVED ! Thank You Ranger & Others
  248. '95 Northstar 4.6 oil leak
  249. Northstar Blower Motor For Sale
  250. 96 Deville running hot