: Northstar Engines and System Technical Discussion



Pages : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 [15] 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

  1. valve noise at startup
  2. Breaking in a N*
  3. Invisible leak (coolant)
  4. Another seafoam thread
  5. Is there an easy way to change coolant?
  6. what is considered normal coolant temperture for a north*?
  7. please identify mystery black box 01 DTS
  8. Northstar Headgasket/Cracked Block/Bolt Failure? Please let us know
  9. Flushing Radiator
  10. Are there any worthwhile performance mods for the 98 north*?
  11. Was there more then one north* engine in 1998?
  12. Three (3) Codes on 1996 SLS: P1406, P0401, P0108
  13. Northstar Air Consumption.
  14. Eldo Gone....
  15. 4T80-E Transmission Fluid Change - DONE!
  16. P119 - Shorted Fuel Injector Problem
  17. How often do you WOT your north*?
  18. Before i go to beat the crap outta my car - WOT cleaning
  19. denso wires ???
  20. timeserts -so do these things prevent bad head gaskets
  21. Northstar 32 valve good for swap-out?
  22. '94 sts.. ignition coils, ignition control module?
  23. Car will not turn over....
  24. Has anyone ever got the P0741 code?
  25. Are there any good oil additives to add...
  26. I read a post about top tier gasoline....
  27. '95 Concours hard starting when it's cold outside
  28. my service engine soon light is on
  29. bad idea to use 87 octane?
  30. royal purple on a N*
  31. 03 n* and trans in a 99 SLS
  32. What gives the Northstar its "whirring" sound at idle?
  33. 96 sts starter problems, questions?
  34. How would i get a custom pcm?
  35. Beef up a 4.6L NStar?
  36. squeeky serpatine belt *new belt and tensioner*
  37. N* performance
  38. what year was it?
  39. opinions on high flow cats
  40. Gasoline Consumption question
  41. Looking for a Timesert Kit
  42. Engine Performance mods 95 STS
  43. Which oil i need for my 96 eldorado????
  44. How long should I let the N* warm up in the morning?
  45. Timesert Kits?
  46. 1997 SLS (overheating)
  47. Changing brakes on 96 SLS
  48. 2000 dts northstar reliabilty
  49. 2002 ETC Collector-mobile.
  50. What's the difference between the STS and SLS engines?
  51. Internal Mods For Northstar
  52. 99 to 00+ swap differences
  53. stuttering at idle
  54. 1999 Cadillac STS love/hate relationship...
  55. Free Northstar Engine
  56. Help the new guy make a good decision
  57. High Performance Head Gaskets?
  58. Parts ID
  59. Not run for 6 years, what would you do?
  60. 00 PCM on a 99 engine
  61. Blown Headgasket
  62. Aluminum Block porisity
  63. Its Alive
  64. oil life monitor problem
  65. P094 limp mode, no overdrive
  66. Valve Stem Seal Puller
  67. Homemade Valve Spring Compressor
  68. What Should I Pay For Eibachs?
  69. Trans Fluid/Filter change and Coolant drain/refill...
  70. Randomly Creeping High Idle Problem
  71. Stock spark plug wires, 7 or 8 mm?
  72. transmission oil looks dark :S
  73. how many cubic inches
  74. Northstar coil pack firing order
  75. '96 Sls: P1406: Egr
  76. GM Oil Consumption TSB, 2007
  77. Dexcool/Peak coolant
  78. noobie questions
  79. God a northstar sounds sexy, but does something sound odd
  80. Coolant leak...
  81. Northstar motor install
  82. overheating, waterpump? 2002 deville w/ 120k miles
  83. Transmission won't "kickdown" 1994 Eldorado
  84. Blocks cracking on final head torque?
  85. How to remove timeserts?
  86. crankshaft postion sensor
  87. '05 STS - Slipping Transmission at low MPH
  88. rear wheel drive conversion
  89. Cadillac Overheating Issues
  90. humming noise
  91. Clogged vacuum port to fuel pressure regulator
  92. thermostat starting to rise in strange way
  93. overheating , but ez fix?
  94. intermittent "hard start" when car at operating temp
  95. How to tell if block is timeserted?
  96. HELP ME!!!! What is the difference between ECON and Auto
  97. clogged cat = overheating?
  98. 2000-up coil pack crack
  99. 93 sts trans solenoids?
  100. Sealing off a blown head gasket
  101. Rear Main Seal
  102. Oil Life % vs. Reality
  103. Time out!!
  104. engines misses after teardown
  105. 93 STS Northstar won't start
  106. Motor build for sand rail
  107. What kind of gas mileage do you get with your Northstar?
  108. crank sensors
  109. 4.0 Northstar No Start PLEASE HELP!!!
  110. What Northstar do I have?
  111. 96 Eldorado ETC - Blown head gasket
  112. Radiator hoses
  113. headgasket pics
  114. Converter Size
  115. Cylinder Head Reconditioning
  116. 02 sts N* Engine knock
  117. MAF Issues
  118. Oil Pressure Issue - 2000 Cadillac DeVille
  119. Northstar mechanic in the Massachusetts??
  120. Need Help
  121. 93 sts misses and no 2-3 shift
  122. Good fresh tim-serted 94' SLS engine on ebay.
  123. Help, still overheating after headgasket job .
  124. Cooling fan motor bad?
  125. Roots style S/C for the northstar. Anytakers?
  126. front HVAC blower not working on 2000 deville
  127. 1995 STS won't start
  128. 94 4.6L SLS/STS Engine on Ebay
  129. oil level sensor
  130. Thought I had all the parts
  131. '99 Deville stalled and wont start
  132. 96 Deville stumbles on acceleration
  133. Spark Plug Gap
  134. P094 code
  135. 2001 Northstar 4.6 in 99 sts body??
  136. Short runner intake
  137. Bad Waterpump???
  138. Making a trip to fastchip
  139. Fan runs while car is shut off
  140. 94 Seville w/ 93 Engine & Trans (from Eldorado) Shift Problem
  141. Backfired while starting, now I have a miss!
  142. Octane Boosters
  143. Code Question
  144. sluggish n* in a 96 eldo
  145. 03 4.6 Loud engine knock caused by roller rockers
  146. I did the intake and exhaust and no difference
  147. looking at a scangauge 2 / question about pulling codes
  148. starter gives a single click
  149. PCM Data, PD42 Octane?
  150. Made the switch to Rotella...
  151. Crank seal replacement cost??
  152. Headlight problem!
  153. 99 STS blown head gasket. what to do??
  154. Turning off Injectors = Save fuel?
  155. A/C Question
  156. Two pricing question
  157. 1995 STS Performance ?
  158. I052 Code + Stalling + Instrument Panel Reset
  159. Oil pressure Sending Unit
  160. P/S pump leak
  161. Oil Leak
  162. "Low Refrigerant" & "A/C Compressor Off" B1348
  163. 95 Deville Concours performance
  164. '03 STS making turbine-like sound for 5-10 secs on cold start. Any ideas?
  165. new exhaust with #s
  166. Main bearing Torque Values? '94 4.6L SLS
  167. What tools needed to replace idle control motor on N*?
  168. Sooty Stalling 98 Deville
  169. New N* Owner - What to look for?
  170. Will the REAL Dexcool Please Stand Up?
  171. Rustling noise and loss of power
  172. Mass air flow sensor Help please
  173. oil cooler
  174. Engine just dies
  175. Swapping Engine To A Non-Northstar
  176. I have a little oil in the spark plug wells, anything to worry about?
  177. setting timing
  178. How about a Northstar Survival Guide
  179. what color is dexcool?
  180. Engine revving on its own
  181. Northstar remanufactured engine source
  182. "If it wasn't for bad luck....you know the rest
  183. Hitting 150k or more, is it realistic on my car?
  184. Time-Sert
  185. Bouncing Idle, new sparkplugs and oil after seafoam or TEC?
  186. front motor mount
  187. Is it Normal to Leak????
  188. Power steering leak
  189. 99 Northstar burning coolant somewhere!
  190. Data loging with performance monitoring and measuring devices
  191. Help With My 99' N* Hg Job
  192. Low oil pressure warning
  193. engine-trans bolts
  194. Valve Train Ticking
  195. What peformance chip is better for 02 dts?
  196. Wrong headbolts
  197. Changing HG, will heads be ok?
  198. N* Stock Internals
  199. Oil missing from pan
  200. 93-99 Dis ????
  201. So, i just talked to one of the engineers at GM that worked on the northstar
  202. 02 deville spark plug replacement
  203. Finding New Mechanic: Questions to Ask
  204. Myth!!!!! Octane 99 and prior VS 00+
  205. Interesting problem - highway stalling
  206. just installed alternator, NOW WHAT!
  207. How much horsepower in 1997 Professional Chassis (Limo)?
  208. A\C Question!!!!!!!!!!!!!!
  209. How to get out cylinder head alignment bushings???
  210. Tim Allens 400HP naturally asp. N*
  211. cracked engine block
  212. 1997 DeVille Head Gasket Repair
  213. Solid Motor Mount?
  214. lower motor mount
  215. low oil pressure / battery no charge on DIC
  216. '98 STS Camshaft
  217. 05 DTS Northstar fuel economy
  218. Leaking Head Gaskets & Extended Warranty
  219. p1375 icm 24x reference voltage too high and p1350 ignition control system
  220. 00 deville cylinder #4
  221. Northstar overheating causes
  222. locating dowels
  223. 00 deville P0300
  224. Changing spark plugs on a Northstar
  225. can't find anyone who knows the answer
  226. 94 sts strange issue
  227. 30,000 mile service
  228. 98 sts bogging and backfiring
  229. symptoms and cuases of headgasket
  230. 2007 Northstar VIN A PCM Pinouts
  231. Interesting Observation with Volant.
  232. Suggest new catorgory"Northstar Tuning"
  233. Question about Dexcool for the Northstar 4.6
  234. 99 STS in Distress
  235. p0300 Engine Misfire
  236. Need Some Feedback
  237. P0171 and P0174 codes: Intake leak?
  238. TC0073 ???? I have searched with not a REAL answer
  239. carbon on tailpipes, and why?
  240. are time serts asbsolutely necessary
  241. Replacing various parts
  242. new radiator
  243. N* HG Repair, Drop cradle or Pull engine?
  244. Cheap Mechanic in Des Moines?
  245. Cooling Fans NEED HELP.
  246. P094 = Tranny rebuilt?
  247. Problems with N* motor
  248. Considering used Northstar- need advice
  249. More Northstar head gasket questions...
  250. Help with two noises from '97 Northstar