: Northstar Engines and System Technical Discussion



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  1. 1995 STS won't start
  2. 94 4.6L SLS/STS Engine on Ebay
  3. oil level sensor
  4. Thought I had all the parts
  5. '99 Deville stalled and wont start
  6. 96 Deville stumbles on acceleration
  7. Spark Plug Gap
  8. P094 code
  9. 2001 Northstar 4.6 in 99 sts body??
  10. Short runner intake
  11. Bad Waterpump???
  12. Making a trip to fastchip
  13. Fan runs while car is shut off
  14. 94 Seville w/ 93 Engine & Trans (from Eldorado) Shift Problem
  15. Backfired while starting, now I have a miss!
  16. Octane Boosters
  17. Code Question
  18. sluggish n* in a 96 eldo
  19. 03 4.6 Loud engine knock caused by roller rockers
  20. I did the intake and exhaust and no difference
  21. looking at a scangauge 2 / question about pulling codes
  22. starter gives a single click
  23. PCM Data, PD42 Octane?
  24. Made the switch to Rotella...
  25. Crank seal replacement cost??
  26. Headlight problem!
  27. 99 STS blown head gasket. what to do??
  28. Turning off Injectors = Save fuel?
  29. A/C Question
  30. Two pricing question
  31. 1995 STS Performance ?
  32. I052 Code + Stalling + Instrument Panel Reset
  33. Oil pressure Sending Unit
  34. P/S pump leak
  35. Oil Leak
  36. "Low Refrigerant" & "A/C Compressor Off" B1348
  37. 95 Deville Concours performance
  38. '03 STS making turbine-like sound for 5-10 secs on cold start. Any ideas?
  39. new exhaust with #s
  40. Main bearing Torque Values? '94 4.6L SLS
  41. What tools needed to replace idle control motor on N*?
  42. Sooty Stalling 98 Deville
  43. New N* Owner - What to look for?
  44. Will the REAL Dexcool Please Stand Up?
  45. Rustling noise and loss of power
  46. Mass air flow sensor Help please
  47. oil cooler
  48. Engine just dies
  49. Swapping Engine To A Non-Northstar
  50. I have a little oil in the spark plug wells, anything to worry about?
  51. setting timing
  52. How about a Northstar Survival Guide
  53. what color is dexcool?
  54. Engine revving on its own
  55. Northstar remanufactured engine source
  56. "If it wasn't for bad luck....you know the rest
  57. Hitting 150k or more, is it realistic on my car?
  58. Time-Sert
  59. Bouncing Idle, new sparkplugs and oil after seafoam or TEC?
  60. front motor mount
  61. Is it Normal to Leak????
  62. Power steering leak
  63. 99 Northstar burning coolant somewhere!
  64. Data loging with performance monitoring and measuring devices
  65. Help With My 99' N* Hg Job
  66. Low oil pressure warning
  67. engine-trans bolts
  68. Valve Train Ticking
  69. What peformance chip is better for 02 dts?
  70. Wrong headbolts
  71. Changing HG, will heads be ok?
  72. N* Stock Internals
  73. Oil missing from pan
  74. 93-99 Dis ????
  75. So, i just talked to one of the engineers at GM that worked on the northstar
  76. 02 deville spark plug replacement
  77. Finding New Mechanic: Questions to Ask
  78. Myth!!!!! Octane 99 and prior VS 00+
  79. Interesting problem - highway stalling
  80. just installed alternator, NOW WHAT!
  81. How much horsepower in 1997 Professional Chassis (Limo)?
  82. A\C Question!!!!!!!!!!!!!!
  83. How to get out cylinder head alignment bushings???
  84. Tim Allens 400HP naturally asp. N*
  85. cracked engine block
  86. 1997 DeVille Head Gasket Repair
  87. Solid Motor Mount?
  88. lower motor mount
  89. low oil pressure / battery no charge on DIC
  90. '98 STS Camshaft
  91. 05 DTS Northstar fuel economy
  92. Leaking Head Gaskets & Extended Warranty
  93. p1375 icm 24x reference voltage too high and p1350 ignition control system
  94. 00 deville cylinder #4
  95. Northstar overheating causes
  96. locating dowels
  97. 00 deville P0300
  98. Changing spark plugs on a Northstar
  99. can't find anyone who knows the answer
  100. 94 sts strange issue
  101. 30,000 mile service
  102. 98 sts bogging and backfiring
  103. symptoms and cuases of headgasket
  104. 2007 Northstar VIN A PCM Pinouts
  105. Interesting Observation with Volant.
  106. Suggest new catorgory"Northstar Tuning"
  107. Question about Dexcool for the Northstar 4.6
  108. 99 STS in Distress
  109. p0300 Engine Misfire
  110. Need Some Feedback
  111. P0171 and P0174 codes: Intake leak?
  112. TC0073 ???? I have searched with not a REAL answer
  113. carbon on tailpipes, and why?
  114. are time serts asbsolutely necessary
  115. Replacing various parts
  116. new radiator
  117. N* HG Repair, Drop cradle or Pull engine?
  118. Cheap Mechanic in Des Moines?
  119. Cooling Fans NEED HELP.
  120. P094 = Tranny rebuilt?
  121. Problems with N* motor
  122. Considering used Northstar- need advice
  123. More Northstar head gasket questions...
  124. Help with two noises from '97 Northstar
  125. i need help on how to change my headgasket on my 99 seville sls
  126. Back Pressure in Cooling System?
  127. what is OBDII
  128. WANTED Time Sert Kit Rental
  129. **Update** Head gasket on 99 Deville
  130. '94 N* Touring coupe with PO37 code?
  131. Check Engine Codes, vibration
  132. 94 STS Won't accelerate w/o almost stalling the engine.
  133. broken coolant reservoir in my N*
  134. Water pump replacement
  135. 2000 N* is it safe to fill it with a non sinthetic oil?
  136. Sudden drop in fuel economy with AC on
  137. Lambo V12 similiar to N*?
  138. Timing chain tensioner tool
  139. Could a bad catalytic converter also decrease my gas mileage?
  140. Is DEX save for engines?
  141. still overheating
  142. Replaced your Power Steering Pump? Come on IN!!!
  143. 01Deville MISFIRE
  144. 99 N* Issue
  145. bad cylinder
  146. Think Northstar headgaskets are expensive??
  147. Coolant Smell after Shut Down?
  148. 00 DeVille check coolant level
  149. dyno #s
  150. Aurora N* questions
  151. Cheapest way to do HG's?????
  152. I found my leak, now i need help
  153. Is the N* overrated?
  154. Northstar crate or rebuild??
  155. Timesert pulled when torquing headbolts-What Now??
  156. I Need Cheap 97 insert kit
  157. 99 Deville over heating NOT HG I think
  158. 02/03 Alternator regulator
  159. 98 deville fluttering sound
  160. A/C Recharging Help
  161. 99 ELDO coolant level Question.
  162. Sign of upcoming headgasket problem?
  163. head bolts
  164. tachometer like a rollercoaster...
  165. overheating problem
  166. Northstar owner loosing faith
  167. Fuel Injector Problem I Think
  168. Transmission Fluid
  169. Alternator
  170. Coolant Loss and Overheating
  171. Harmonic Balancer. Dangerous?
  172. Someone please help, i need to know whats this part.
  173. Suspension compressor lube and NRV - help!
  174. Superchargers are here!
  175. 93 to 99 O/H assembly
  176. 93 to 99 Northstar dis-assembly and inspection
  177. RWD Northstar information
  178. 2000 to 2004 or 5 Northstar information
  179. 4.4L information
  180. Northstar "check coolant level" -- trying to understand basics
  181. Northstar head gaskets replaced -- a good thing?
  182. Head Bolt Torque Value?
  183. Biggest Question To All..
  184. Re-mounting PCM - Idea?
  185. Coolant use
  186. How to clean Piston Rings my way
  187. 4T80E 3.11 to 3.71 swap
  188. Differences in Northstars - '93-'97, also cheap head gasket fix...
  189. What weight and type oil to use?
  190. Rochester QJ and N* Throttlebodies
  191. Another coolant/radiator/headgasket question
  192. northstar shuts down
  193. Head Gasket or Something Else (Steamy Exhaust)
  194. Help with codes from DIC
  195. need N* casting/part#s for ID
  196. How do you pull injectors????
  197. Crank sensor and PCM History
  198. For you guys who have done a headgasket job on the 4.6
  199. Camshaft Pulley will not come off!!
  200. Volant - The long awaited very custom install (pics)
  201. Older (95) Northstar Re-Torque?
  202. Need Help DIC Warning Messages (w/Codes!)
  203. pricing Time Serts
  204. Second Head Gasket problem, 93 Eldorado
  205. '05 DeVille, Two Black Cam Covers?
  206. fuel system tune up?
  207. changing N* oil w/o lift
  208. N* teardown for successful timing on assembly
  209. Factory strut tower brace and "dogbones" - can i do better?
  210. 00 to 05 T-body Dimensions
  211. How bad am I getting screwed?
  212. 97' deville---new radiator but now losing engine oil
  213. In Need of Timersert
  214. I think it's the Tensioner
  215. Induction system and adhesives
  216. top speed
  217. 1997 cadillac devill d,elegance
  218. '95 SLS Rough Idle
  219. HELP! Code P1646.. Evaporative emission (EVAP) vent Solenoid Control Circuit
  220. NS300L Insert System, Anyone have these kind?
  221. Nitrous is Here!!
  222. Presidential Limo Breaks Down
  223. Surge Tank
  224. Need Help Guys 00 Northstar Coil Problem
  225. CHRFAB Intake Manifold
  226. Looked up codes but still confused
  227. Head gasket problem in '97 STS, looking for a new engine
  228. TCC codes P0741 & P1860 questions
  229. Transmission Swap
  230. 1997 STS problems
  231. O2 repair-Domino Effect-Need Help
  232. 98 STS engine swap -need a bit of help
  233. performance options
  234. separating motor and transaxle??
  235. cant fix hard hot start for the life of me
  236. Water Pump Replaced (99 Deville)
  237. 95 SLS n* timesert completed-special tool made!
  238. my magnaflow exhaus vid yes another
  239. Translate 96 Codes
  240. What percentage of Northstar engines have headgasket problems?
  241. Coolant
  242. Leaking Transmission Fluid
  243. intermittent random oil pressure light?
  244. Northstar average engine temp ?
  245. A Little "smoke" From The Back Of A 1993 N* Sts
  246. 99 Deville Check Engine Light
  247. N* Injectors?
  248. My 2001 STS' Repair History
  249. Magnaflow exhaust
  250. timings off