: Northstar Engines and System Technical Discussion



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  1. royal purple on a N*
  2. 03 n* and trans in a 99 SLS
  3. What gives the Northstar its "whirring" sound at idle?
  4. 96 sts starter problems, questions?
  5. How would i get a custom pcm?
  6. Beef up a 4.6L NStar?
  7. squeeky serpatine belt *new belt and tensioner*
  8. N* performance
  9. what year was it?
  10. opinions on high flow cats
  11. Gasoline Consumption question
  12. Looking for a Timesert Kit
  13. Engine Performance mods 95 STS
  14. Which oil i need for my 96 eldorado????
  15. How long should I let the N* warm up in the morning?
  16. Timesert Kits?
  17. 1997 SLS (overheating)
  18. Changing brakes on 96 SLS
  19. 2000 dts northstar reliabilty
  20. 2002 ETC Collector-mobile.
  21. What's the difference between the STS and SLS engines?
  22. Internal Mods For Northstar
  23. 99 to 00+ swap differences
  24. stuttering at idle
  25. 1999 Cadillac STS love/hate relationship...
  26. Free Northstar Engine
  27. Help the new guy make a good decision
  28. High Performance Head Gaskets?
  29. Parts ID
  30. Not run for 6 years, what would you do?
  31. 00 PCM on a 99 engine
  32. Blown Headgasket
  33. Aluminum Block porisity
  34. Its Alive
  35. oil life monitor problem
  36. P094 limp mode, no overdrive
  37. Valve Stem Seal Puller
  38. Homemade Valve Spring Compressor
  39. What Should I Pay For Eibachs?
  40. Trans Fluid/Filter change and Coolant drain/refill...
  41. Randomly Creeping High Idle Problem
  42. Stock spark plug wires, 7 or 8 mm?
  43. transmission oil looks dark :S
  44. how many cubic inches
  45. Northstar coil pack firing order
  46. '96 Sls: P1406: Egr
  47. GM Oil Consumption TSB, 2007
  48. Dexcool/Peak coolant
  49. noobie questions
  50. God a northstar sounds sexy, but does something sound odd
  51. Coolant leak...
  52. Northstar motor install
  53. overheating, waterpump? 2002 deville w/ 120k miles
  54. Transmission won't "kickdown" 1994 Eldorado
  55. Blocks cracking on final head torque?
  56. How to remove timeserts?
  57. crankshaft postion sensor
  58. '05 STS - Slipping Transmission at low MPH
  59. rear wheel drive conversion
  60. Cadillac Overheating Issues
  61. humming noise
  62. Clogged vacuum port to fuel pressure regulator
  63. thermostat starting to rise in strange way
  64. overheating , but ez fix?
  65. intermittent "hard start" when car at operating temp
  66. How to tell if block is timeserted?
  67. HELP ME!!!! What is the difference between ECON and Auto
  68. clogged cat = overheating?
  69. 2000-up coil pack crack
  70. 93 sts trans solenoids?
  71. Sealing off a blown head gasket
  72. Rear Main Seal
  73. Oil Life % vs. Reality
  74. Time out!!
  75. engines misses after teardown
  76. 93 STS Northstar won't start
  77. Motor build for sand rail
  78. What kind of gas mileage do you get with your Northstar?
  79. crank sensors
  80. 4.0 Northstar No Start PLEASE HELP!!!
  81. What Northstar do I have?
  82. 96 Eldorado ETC - Blown head gasket
  83. Radiator hoses
  84. headgasket pics
  85. Converter Size
  86. Cylinder Head Reconditioning
  87. 02 sts N* Engine knock
  88. MAF Issues
  89. Oil Pressure Issue - 2000 Cadillac DeVille
  90. Northstar mechanic in the Massachusetts??
  91. Need Help
  92. 93 sts misses and no 2-3 shift
  93. Good fresh tim-serted 94' SLS engine on ebay.
  94. Help, still overheating after headgasket job .
  95. Cooling fan motor bad?
  96. Roots style S/C for the northstar. Anytakers?
  97. front HVAC blower not working on 2000 deville
  98. 1995 STS won't start
  99. 94 4.6L SLS/STS Engine on Ebay
  100. oil level sensor
  101. Thought I had all the parts
  102. '99 Deville stalled and wont start
  103. 96 Deville stumbles on acceleration
  104. Spark Plug Gap
  105. P094 code
  106. 2001 Northstar 4.6 in 99 sts body??
  107. Short runner intake
  108. Bad Waterpump???
  109. Making a trip to fastchip
  110. Fan runs while car is shut off
  111. 94 Seville w/ 93 Engine & Trans (from Eldorado) Shift Problem
  112. Backfired while starting, now I have a miss!
  113. Octane Boosters
  114. Code Question
  115. sluggish n* in a 96 eldo
  116. 03 4.6 Loud engine knock caused by roller rockers
  117. I did the intake and exhaust and no difference
  118. looking at a scangauge 2 / question about pulling codes
  119. starter gives a single click
  120. PCM Data, PD42 Octane?
  121. Made the switch to Rotella...
  122. Crank seal replacement cost??
  123. Headlight problem!
  124. 99 STS blown head gasket. what to do??
  125. Turning off Injectors = Save fuel?
  126. A/C Question
  127. Two pricing question
  128. 1995 STS Performance ?
  129. I052 Code + Stalling + Instrument Panel Reset
  130. Oil pressure Sending Unit
  131. P/S pump leak
  132. Oil Leak
  133. "Low Refrigerant" & "A/C Compressor Off" B1348
  134. 95 Deville Concours performance
  135. '03 STS making turbine-like sound for 5-10 secs on cold start. Any ideas?
  136. new exhaust with #s
  137. Main bearing Torque Values? '94 4.6L SLS
  138. What tools needed to replace idle control motor on N*?
  139. Sooty Stalling 98 Deville
  140. New N* Owner - What to look for?
  141. Will the REAL Dexcool Please Stand Up?
  142. Rustling noise and loss of power
  143. Mass air flow sensor Help please
  144. oil cooler
  145. Engine just dies
  146. Swapping Engine To A Non-Northstar
  147. I have a little oil in the spark plug wells, anything to worry about?
  148. setting timing
  149. How about a Northstar Survival Guide
  150. what color is dexcool?
  151. Engine revving on its own
  152. Northstar remanufactured engine source
  153. "If it wasn't for bad luck....you know the rest
  154. Hitting 150k or more, is it realistic on my car?
  155. Time-Sert
  156. Bouncing Idle, new sparkplugs and oil after seafoam or TEC?
  157. front motor mount
  158. Is it Normal to Leak????
  159. Power steering leak
  160. 99 Northstar burning coolant somewhere!
  161. Data loging with performance monitoring and measuring devices
  162. Help With My 99' N* Hg Job
  163. Low oil pressure warning
  164. engine-trans bolts
  165. Valve Train Ticking
  166. What peformance chip is better for 02 dts?
  167. Wrong headbolts
  168. Changing HG, will heads be ok?
  169. N* Stock Internals
  170. Oil missing from pan
  171. 93-99 Dis ????
  172. So, i just talked to one of the engineers at GM that worked on the northstar
  173. 02 deville spark plug replacement
  174. Finding New Mechanic: Questions to Ask
  175. Myth!!!!! Octane 99 and prior VS 00+
  176. Interesting problem - highway stalling
  177. just installed alternator, NOW WHAT!
  178. How much horsepower in 1997 Professional Chassis (Limo)?
  179. A\C Question!!!!!!!!!!!!!!
  180. How to get out cylinder head alignment bushings???
  181. Tim Allens 400HP naturally asp. N*
  182. cracked engine block
  183. 1997 DeVille Head Gasket Repair
  184. Solid Motor Mount?
  185. lower motor mount
  186. low oil pressure / battery no charge on DIC
  187. '98 STS Camshaft
  188. 05 DTS Northstar fuel economy
  189. Leaking Head Gaskets & Extended Warranty
  190. p1375 icm 24x reference voltage too high and p1350 ignition control system
  191. 00 deville cylinder #4
  192. Northstar overheating causes
  193. locating dowels
  194. 00 deville P0300
  195. Changing spark plugs on a Northstar
  196. can't find anyone who knows the answer
  197. 94 sts strange issue
  198. 30,000 mile service
  199. 98 sts bogging and backfiring
  200. symptoms and cuases of headgasket
  201. 2007 Northstar VIN A PCM Pinouts
  202. Interesting Observation with Volant.
  203. Suggest new catorgory"Northstar Tuning"
  204. Question about Dexcool for the Northstar 4.6
  205. 99 STS in Distress
  206. p0300 Engine Misfire
  207. Need Some Feedback
  208. P0171 and P0174 codes: Intake leak?
  209. TC0073 ???? I have searched with not a REAL answer
  210. carbon on tailpipes, and why?
  211. are time serts asbsolutely necessary
  212. Replacing various parts
  213. new radiator
  214. N* HG Repair, Drop cradle or Pull engine?
  215. Cheap Mechanic in Des Moines?
  216. Cooling Fans NEED HELP.
  217. P094 = Tranny rebuilt?
  218. Problems with N* motor
  219. Considering used Northstar- need advice
  220. More Northstar head gasket questions...
  221. Help with two noises from '97 Northstar
  222. i need help on how to change my headgasket on my 99 seville sls
  223. Back Pressure in Cooling System?
  224. what is OBDII
  225. WANTED Time Sert Kit Rental
  226. **Update** Head gasket on 99 Deville
  227. '94 N* Touring coupe with PO37 code?
  228. Check Engine Codes, vibration
  229. 94 STS Won't accelerate w/o almost stalling the engine.
  230. broken coolant reservoir in my N*
  231. Water pump replacement
  232. 2000 N* is it safe to fill it with a non sinthetic oil?
  233. Sudden drop in fuel economy with AC on
  234. Lambo V12 similiar to N*?
  235. Timing chain tensioner tool
  236. Could a bad catalytic converter also decrease my gas mileage?
  237. Is DEX save for engines?
  238. still overheating
  239. Replaced your Power Steering Pump? Come on IN!!!
  240. 01Deville MISFIRE
  241. 99 N* Issue
  242. bad cylinder
  243. Think Northstar headgaskets are expensive??
  244. Coolant Smell after Shut Down?
  245. 00 DeVille check coolant level
  246. dyno #s
  247. Aurora N* questions
  248. Cheapest way to do HG's?????
  249. I found my leak, now i need help
  250. Is the N* overrated?