: Northstar Engines and System Technical Discussion



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