: Northstar Engines and System Technical Discussion



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