: Northstar Engines and System Technical Discussion



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  1. P094 limp mode, no overdrive
  2. Valve Stem Seal Puller
  3. Homemade Valve Spring Compressor
  4. What Should I Pay For Eibachs?
  5. Trans Fluid/Filter change and Coolant drain/refill...
  6. Randomly Creeping High Idle Problem
  7. Stock spark plug wires, 7 or 8 mm?
  8. transmission oil looks dark :S
  9. how many cubic inches
  10. Northstar coil pack firing order
  11. '96 Sls: P1406: Egr
  12. GM Oil Consumption TSB, 2007
  13. Dexcool/Peak coolant
  14. noobie questions
  15. God a northstar sounds sexy, but does something sound odd
  16. Coolant leak...
  17. Northstar motor install
  18. overheating, waterpump? 2002 deville w/ 120k miles
  19. Transmission won't "kickdown" 1994 Eldorado
  20. Blocks cracking on final head torque?
  21. How to remove timeserts?
  22. crankshaft postion sensor
  23. '05 STS - Slipping Transmission at low MPH
  24. rear wheel drive conversion
  25. Cadillac Overheating Issues
  26. humming noise
  27. Clogged vacuum port to fuel pressure regulator
  28. thermostat starting to rise in strange way
  29. overheating , but ez fix?
  30. intermittent "hard start" when car at operating temp
  31. How to tell if block is timeserted?
  32. HELP ME!!!! What is the difference between ECON and Auto
  33. clogged cat = overheating?
  34. 2000-up coil pack crack
  35. 93 sts trans solenoids?
  36. Sealing off a blown head gasket
  37. Rear Main Seal
  38. Oil Life % vs. Reality
  39. Time out!!
  40. engines misses after teardown
  41. 93 STS Northstar won't start
  42. Motor build for sand rail
  43. What kind of gas mileage do you get with your Northstar?
  44. crank sensors
  45. 4.0 Northstar No Start PLEASE HELP!!!
  46. What Northstar do I have?
  47. 96 Eldorado ETC - Blown head gasket
  48. Radiator hoses
  49. headgasket pics
  50. Converter Size
  51. Cylinder Head Reconditioning
  52. 02 sts N* Engine knock
  53. MAF Issues
  54. Oil Pressure Issue - 2000 Cadillac DeVille
  55. Northstar mechanic in the Massachusetts??
  56. Need Help
  57. 93 sts misses and no 2-3 shift
  58. Good fresh tim-serted 94' SLS engine on ebay.
  59. Help, still overheating after headgasket job .
  60. Cooling fan motor bad?
  61. Roots style S/C for the northstar. Anytakers?
  62. front HVAC blower not working on 2000 deville
  63. 1995 STS won't start
  64. 94 4.6L SLS/STS Engine on Ebay
  65. oil level sensor
  66. Thought I had all the parts
  67. '99 Deville stalled and wont start
  68. 96 Deville stumbles on acceleration
  69. Spark Plug Gap
  70. P094 code
  71. 2001 Northstar 4.6 in 99 sts body??
  72. Short runner intake
  73. Bad Waterpump???
  74. Making a trip to fastchip
  75. Fan runs while car is shut off
  76. 94 Seville w/ 93 Engine & Trans (from Eldorado) Shift Problem
  77. Backfired while starting, now I have a miss!
  78. Octane Boosters
  79. Code Question
  80. sluggish n* in a 96 eldo
  81. 03 4.6 Loud engine knock caused by roller rockers
  82. I did the intake and exhaust and no difference
  83. looking at a scangauge 2 / question about pulling codes
  84. starter gives a single click
  85. PCM Data, PD42 Octane?
  86. Made the switch to Rotella...
  87. Crank seal replacement cost??
  88. Headlight problem!
  89. 99 STS blown head gasket. what to do??
  90. Turning off Injectors = Save fuel?
  91. A/C Question
  92. Two pricing question
  93. 1995 STS Performance ?
  94. I052 Code + Stalling + Instrument Panel Reset
  95. Oil pressure Sending Unit
  96. P/S pump leak
  97. Oil Leak
  98. "Low Refrigerant" & "A/C Compressor Off" B1348
  99. 95 Deville Concours performance
  100. '03 STS making turbine-like sound for 5-10 secs on cold start. Any ideas?
  101. new exhaust with #s
  102. Main bearing Torque Values? '94 4.6L SLS
  103. What tools needed to replace idle control motor on N*?
  104. Sooty Stalling 98 Deville
  105. New N* Owner - What to look for?
  106. Will the REAL Dexcool Please Stand Up?
  107. Rustling noise and loss of power
  108. Mass air flow sensor Help please
  109. oil cooler
  110. Engine just dies
  111. Swapping Engine To A Non-Northstar
  112. I have a little oil in the spark plug wells, anything to worry about?
  113. setting timing
  114. How about a Northstar Survival Guide
  115. what color is dexcool?
  116. Engine revving on its own
  117. Northstar remanufactured engine source
  118. "If it wasn't for bad luck....you know the rest
  119. Hitting 150k or more, is it realistic on my car?
  120. Time-Sert
  121. Bouncing Idle, new sparkplugs and oil after seafoam or TEC?
  122. front motor mount
  123. Is it Normal to Leak????
  124. Power steering leak
  125. 99 Northstar burning coolant somewhere!
  126. Data loging with performance monitoring and measuring devices
  127. Help With My 99' N* Hg Job
  128. Low oil pressure warning
  129. engine-trans bolts
  130. Valve Train Ticking
  131. What peformance chip is better for 02 dts?
  132. Wrong headbolts
  133. Changing HG, will heads be ok?
  134. N* Stock Internals
  135. Oil missing from pan
  136. 93-99 Dis ????
  137. So, i just talked to one of the engineers at GM that worked on the northstar
  138. 02 deville spark plug replacement
  139. Finding New Mechanic: Questions to Ask
  140. Myth!!!!! Octane 99 and prior VS 00+
  141. Interesting problem - highway stalling
  142. just installed alternator, NOW WHAT!
  143. How much horsepower in 1997 Professional Chassis (Limo)?
  144. A\C Question!!!!!!!!!!!!!!
  145. How to get out cylinder head alignment bushings???
  146. Tim Allens 400HP naturally asp. N*
  147. cracked engine block
  148. 1997 DeVille Head Gasket Repair
  149. Solid Motor Mount?
  150. lower motor mount
  151. low oil pressure / battery no charge on DIC
  152. '98 STS Camshaft
  153. 05 DTS Northstar fuel economy
  154. Leaking Head Gaskets & Extended Warranty
  155. p1375 icm 24x reference voltage too high and p1350 ignition control system
  156. 00 deville cylinder #4
  157. Northstar overheating causes
  158. locating dowels
  159. 00 deville P0300
  160. Changing spark plugs on a Northstar
  161. can't find anyone who knows the answer
  162. 94 sts strange issue
  163. 30,000 mile service
  164. 98 sts bogging and backfiring
  165. symptoms and cuases of headgasket
  166. 2007 Northstar VIN A PCM Pinouts
  167. Interesting Observation with Volant.
  168. Suggest new catorgory"Northstar Tuning"
  169. Question about Dexcool for the Northstar 4.6
  170. 99 STS in Distress
  171. p0300 Engine Misfire
  172. Need Some Feedback
  173. P0171 and P0174 codes: Intake leak?
  174. TC0073 ???? I have searched with not a REAL answer
  175. carbon on tailpipes, and why?
  176. are time serts asbsolutely necessary
  177. Replacing various parts
  178. new radiator
  179. N* HG Repair, Drop cradle or Pull engine?
  180. Cheap Mechanic in Des Moines?
  181. Cooling Fans NEED HELP.
  182. P094 = Tranny rebuilt?
  183. Problems with N* motor
  184. Considering used Northstar- need advice
  185. More Northstar head gasket questions...
  186. Help with two noises from '97 Northstar
  187. i need help on how to change my headgasket on my 99 seville sls
  188. Back Pressure in Cooling System?
  189. what is OBDII
  190. WANTED Time Sert Kit Rental
  191. **Update** Head gasket on 99 Deville
  192. '94 N* Touring coupe with PO37 code?
  193. Check Engine Codes, vibration
  194. 94 STS Won't accelerate w/o almost stalling the engine.
  195. broken coolant reservoir in my N*
  196. Water pump replacement
  197. 2000 N* is it safe to fill it with a non sinthetic oil?
  198. Sudden drop in fuel economy with AC on
  199. Lambo V12 similiar to N*?
  200. Timing chain tensioner tool
  201. Could a bad catalytic converter also decrease my gas mileage?
  202. Is DEX save for engines?
  203. still overheating
  204. Replaced your Power Steering Pump? Come on IN!!!
  205. 01Deville MISFIRE
  206. 99 N* Issue
  207. bad cylinder
  208. Think Northstar headgaskets are expensive??
  209. Coolant Smell after Shut Down?
  210. 00 DeVille check coolant level
  211. dyno #s
  212. Aurora N* questions
  213. Cheapest way to do HG's?????
  214. I found my leak, now i need help
  215. Is the N* overrated?
  216. Northstar crate or rebuild??
  217. Timesert pulled when torquing headbolts-What Now??
  218. I Need Cheap 97 insert kit
  219. 99 Deville over heating NOT HG I think
  220. 02/03 Alternator regulator
  221. 98 deville fluttering sound
  222. A/C Recharging Help
  223. 99 ELDO coolant level Question.
  224. Sign of upcoming headgasket problem?
  225. head bolts
  226. tachometer like a rollercoaster...
  227. overheating problem
  228. Northstar owner loosing faith
  229. Fuel Injector Problem I Think
  230. Transmission Fluid
  231. Alternator
  232. Coolant Loss and Overheating
  233. Harmonic Balancer. Dangerous?
  234. Someone please help, i need to know whats this part.
  235. Suspension compressor lube and NRV - help!
  236. Superchargers are here!
  237. 93 to 99 O/H assembly
  238. 93 to 99 Northstar dis-assembly and inspection
  239. RWD Northstar information
  240. 2000 to 2004 or 5 Northstar information
  241. 4.4L information
  242. Northstar "check coolant level" -- trying to understand basics
  243. Northstar head gaskets replaced -- a good thing?
  244. Head Bolt Torque Value?
  245. Biggest Question To All..
  246. Re-mounting PCM - Idea?
  247. Coolant use
  248. How to clean Piston Rings my way
  249. 4T80E 3.11 to 3.71 swap
  250. Differences in Northstars - '93-'97, also cheap head gasket fix...