: Northstar Engines and System Technical Discussion



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