: Northstar Engines and System Technical Discussion



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