: Northstar Engines and System Technical Discussion



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  1. 1997 Deville Coolant Flush
  2. I think i got this Traction Control thing figured out!
  3. Northstar Brainteaser
  4. New Northstar in 2008? Ultra?
  5. Service Engine Light and history codes
  6. Whats code 94?
  7. DIY Replace Coolant for 94 STS
  8. Lower Crankcase Reseal
  9. PC0300 with troubleshoot. Coil Resistance?
  10. '94 Eldorado Coolant change. Help!
  11. Squeaking belt noise - Help!
  12. oil change timing
  13. changed FPR now P0507 code?
  14. need help with water pump.
  15. Fix it or not? Head Gasket.
  16. Future 1996 STS buyer
  17. update on Polyisobutylene
  18. So, I took it to Cottman........
  19. 03 DTS Major Tune Up
  20. Codes, Codes, and more codes....
  21. First WOT on Grandma Owned N*
  22. Tech Manual
  23. What are the performance number of the SLS,DHS
  24. 98 Seville engine mount
  25. N* all OBDII?
  26. EGR Valve Cleaning and Location
  27. How To Replace O2 Sensor Bank 1 Sensor 1
  28. 93 Eldo transaxle
  29. Intake Bolts
  30. Fuel rail/line recall
  31. Saw an interesting Swap today.... (56k take a nap)
  32. Need some help from someone with a 96-99 manual
  33. Not enough WOTs?
  34. another problem solved! N* stutter gone
  35. Coolant Eats Gasket?
  36. Starter Idiocy?
  37. Have you tried Polyisobutylene ??
  38. How to Remove EGR Valve
  39. Granatelli Trans Tuner - Anyone try this?
  40. Granatelli Trans Tuner - Anyone try this?
  41. Performance Survey - New Owner - Seeking Ideas
  42. 94 STS - Throttle Plate Orientation
  43. cruise linkage
  44. 95 STS hi-rpm and auto-acceleration problem
  45. Data on the northstar
  46. Buy a N* with a blown head gasket - Dumb idea?
  47. Weird Idle Issues
  48. 1994 Concourse stuttering
  49. Cooling Fans
  50. Coolant supplement clogged T stat
  51. ghost in the machine
  52. Turbo STS Dyno results
  53. PCM Source
  54. 99 Deville misfire and fuel sensor
  55. Learning about Torque Convertor and solenoid
  56. Casper Electronics TPS Enhancer
  57. What year Nstars fit '99 Deville?
  58. Help:Crankshaft Sensor Replacement
  59. Torque convertor can damage the solenoids?
  60. What will it take to get you to buy a 80mm throttle body?
  61. Is this a "freeze plug"?
  62. Is this a 95 intake?
  63. Weird Hydraulic whine, maybe tranny????
  64. # 8 misfire
  65. where are the plugs on my 03 dhs northstar engine?
  66. Water Leak
  67. 4T80E vs Dexron VI, GM new standard
  68. 200,000 mile mark reality? 1996 STS NStar
  69. It wasnt a hole in the block!!!!!
  70. Just Bought a Granma owned NS w/81K-WOT?
  71. please help!?!?!?!?!
  72. High volt MAP
  73. Rough Idle and Stuttering Acceleration
  74. 94 seville sls oil pan gasket replacement...
  75. 97 headgaskets what else should be done?
  76. Differences in the Northstar engines
  77. PCM info for NorthStar
  78. accessing rear spark plugs
  79. 99 STS Turbo charged video
  80. 1994 Eldorado P083 Code?
  81. Looking for help with Codes
  82. What's this noise....
  83. How do you I.D. an engine?
  84. Expansion tank leaking...
  85. Engine ID
  86. 1994 eldorado fuel pump
  87. unchanged SP wires longevity?
  88. Launch Control for N* ignition
  89. coolant loss
  90. Can I fix my 01 Northstar myself?
  91. Turbo WOT 7psi to REDLINE
  92. 0101 MAF-continues
  93. Turbo Update
  94. changing out o2 sensor on 97 deville
  95. P0404 - Exhaust Gas Recirculation (EGR) Open Position Performance?
  96. deciphering DTC messages into plain English
  97. Cylinder Head Info!
  98. Northstar noise
  99. Best Code Reader/Scanner?
  100. EGR change w/ SS fuel rail- trick maybe
  101. Where is the INPUT SPEED SENSOR?
  102. 97 deville fuel problem
  103. GM coolant additive???
  104. Car wont start
  105. Serpentine belt
  106. no overdrive in my 98 eldo
  107. Really Head Gasket?
  108. New plugs and wires, now misfire
  109. STS Tranny trouble
  110. Improper Sparg plug gap, what happens?
  111. 94 STS hesitates or stumbles
  112. Need a Timesert kit
  113. its been a little while but i am back for good!!
  114. Stalls after fill-up
  115. High Oil Consumption *INFO*
  116. I got porked...Blown N*.
  117. Glowing red exhaust manifolds
  118. Pop Off / Backfire Valve Replacement
  119. fuel filter location?
  120. Pictures of Turbo Project
  121. Head gasket compressed thickness
  122. Emission Codes
  123. Extremely Rough Idle... Cracked Intake Manifold?
  124. Spark Plug Gap
  125. Biggest Problems with the N*'s?
  126. 1999 STS - Timesert question
  127. Gurgling Sound/ Trapped Air in Coolant System
  128. Injector
  129. 95 Deville howl's near the belt
  130. 97 deville N* head gasket costs?????
  131. No overdive
  132. Emmissions Codes
  133. One gear, LIMP MODE? NO CODES
  134. 2000 Deville TCC PWM replacement
  135. p056
  136. 98 Northstar Fuel Rail Recall
  137. Removing bad FPR
  138. '95 Eldorado start-up getting more "difficult"
  139. 93 Northstar Headgasket - Can I do it myself?
  140. Reliability and longevity of a 97 N* motor?
  141. Gas-saving gadgets article
  142. Crank Position Sensor
  143. 1993 1994 Northstar Intake Manifold
  144. How do I spot a head gasket starting to go?
  145. 97 deville radiator drain
  146. N* with code p041
  147. Intake mod
  148. Cold Start Backfire from 97 N*?
  149. OBD2 computer interface
  150. Jasper Verses OEM
  151. 1996 Eldorado Codes
  152. Piston Slap ?
  153. P0420 Code
  154. Northstar oil pump
  155. N*4.6 vibration problem
  156. Cooling system question
  157. Need an engine teardown pic...
  158. Cam Cover Gasket / o-ring replacement
  159. changing altn
  160. Reflash PCM on 96
  161. Link From Consumer Affairs to Dexcool Lawsuit Atty.
  162. Timesert Kit Needed Asap!!!
  163. Failed Emissions Test- But No Codes
  164. fpr fpr
  165. 1999 Northstar with blown head gasket
  166. Water pump??
  167. plugs and wires
  168. Changed TPS on 95 STS d/t P020, now MIL & P080
  169. throttle body cleaning was the answer
  170. Now having trouble in a different way
  171. 200 Deville occasionally won't Idle when starting warm
  172. P1406 Code? EGR?
  173. idle relearn and isc adjust
  174. 1993 Fuel Psi regulator
  175. Cracked Engine Block in 2001 DeVille
  176. 93 -99 N* vs 2000 - 2004, which is better
  177. motor mount...and more
  178. 97 deville leakin trans fluid
  179. MAF replacement
  180. too hot and too cold
  181. Does anybody here have full access to TSB info at alldata?
  182. Overheat SOLVED ! Thank You Ranger & Others
  183. '95 Northstar 4.6 oil leak
  184. Northstar Blower Motor For Sale
  185. 96 Deville running hot
  186. 97 deville stalling, no codes
  187. Changing Spark Plugs- '99 STS
  188. 94 sls overheating,maybe...
  189. I see a lot of posts on supercharging a Northstar
  190. How to get more torque, 03-DTS
  191. Replace or fix
  192. Typical NOOB questions...
  193. Northstar intake manifold
  194. Northstar intake manifold
  195. hey zonie or ranger,
  196. Losing Coolant & Radiator Leakage
  197. ac delco plugs..<-1999 and 2000-> years, whats the difference?
  198. Delco VS Bosch Plug Wires
  199. Oil "Blow By"
  200. Coming 6 speed automatic
  201. WOT - is this the ONLY way to remove carbon buildup?
  202. New source for 80mm throttle bodies!
  203. Is It A Head Gasket???
  204. Jasper Engines
  205. Confused about spark plug type
  206. Surge Tank Design
  207. Stranded out of town!!!
  208. Speed limiter
  209. cams in a northstar
  210. acceleration troubles...
  211. Coolant crossover photos
  212. P0300 Vote!
  213. the best oil for the northstar engine
  214. No Start Please I Need Help!!
  215. 3 questions regarding the timesert job
  216. fuel air mixture
  217. Replacing O2s
  218. P056
  219. Northstar V. 4.9
  220. 97 northstar engine miss
  221. Engine oil leak
  222. IN Trouble Now losing coolant
  223. ice possible message...?
  224. 96 deville oil leak
  225. Replacing a Northstar with a LS1
  226. i cant stand this stalling, why does this happen?
  227. 94STS Blown Gasket Pics
  228. 96 deville
  229. all my problems help!!!!
  230. adding a fuel treatment
  231. Is it normal for...
  232. Surging at low revs and hard shift into 2nd
  233. couple of problems, only one code- AMP B1024
  234. You want DYNO graphs?
  235. 98' Deville Waterpump
  236. The best northstar engine?
  237. How can I avoid head gasket damage?
  238. 93 Northstar Stalls with no codes
  239. '92 Seville radio question
  240. "Clunk" noise at startup? Trans Problem? Help!!
  241. fuel treatment
  242. Code P0101
  243. P023 code on 95 Eldorado
  244. 93 Eldo intermittent no spark,no start
  245. Motor change
  246. Injector malfunction Help!!!!
  247. Mod questions for a 2000 DeVille
  248. Sounds like a bird chirping
  249. 97 deville hesiatation!!!!!
  250. '96 STS OverHeating