: Northstar Engines and System Technical Discussion



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  1. clogged cat = overheating?
  2. 2000-up coil pack crack
  3. 93 sts trans solenoids?
  4. Sealing off a blown head gasket
  5. Rear Main Seal
  6. Oil Life % vs. Reality
  7. Time out!!
  8. engines misses after teardown
  9. 93 STS Northstar won't start
  10. Motor build for sand rail
  11. What kind of gas mileage do you get with your Northstar?
  12. crank sensors
  13. 4.0 Northstar No Start PLEASE HELP!!!
  14. What Northstar do I have?
  15. 96 Eldorado ETC - Blown head gasket
  16. Radiator hoses
  17. headgasket pics
  18. Converter Size
  19. Cylinder Head Reconditioning
  20. 02 sts N* Engine knock
  21. MAF Issues
  22. Oil Pressure Issue - 2000 Cadillac DeVille
  23. Northstar mechanic in the Massachusetts??
  24. Need Help
  25. 93 sts misses and no 2-3 shift
  26. Good fresh tim-serted 94' SLS engine on ebay.
  27. Help, still overheating after headgasket job .
  28. Cooling fan motor bad?
  29. Roots style S/C for the northstar. Anytakers?
  30. front HVAC blower not working on 2000 deville
  31. 1995 STS won't start
  32. 94 4.6L SLS/STS Engine on Ebay
  33. oil level sensor
  34. Thought I had all the parts
  35. '99 Deville stalled and wont start
  36. 96 Deville stumbles on acceleration
  37. Spark Plug Gap
  38. P094 code
  39. 2001 Northstar 4.6 in 99 sts body??
  40. Short runner intake
  41. Bad Waterpump???
  42. Making a trip to fastchip
  43. Fan runs while car is shut off
  44. 94 Seville w/ 93 Engine & Trans (from Eldorado) Shift Problem
  45. Backfired while starting, now I have a miss!
  46. Octane Boosters
  47. Code Question
  48. sluggish n* in a 96 eldo
  49. 03 4.6 Loud engine knock caused by roller rockers
  50. I did the intake and exhaust and no difference
  51. looking at a scangauge 2 / question about pulling codes
  52. starter gives a single click
  53. PCM Data, PD42 Octane?
  54. Made the switch to Rotella...
  55. Crank seal replacement cost??
  56. Headlight problem!
  57. 99 STS blown head gasket. what to do??
  58. Turning off Injectors = Save fuel?
  59. A/C Question
  60. Two pricing question
  61. 1995 STS Performance ?
  62. I052 Code + Stalling + Instrument Panel Reset
  63. Oil pressure Sending Unit
  64. P/S pump leak
  65. Oil Leak
  66. "Low Refrigerant" & "A/C Compressor Off" B1348
  67. 95 Deville Concours performance
  68. '03 STS making turbine-like sound for 5-10 secs on cold start. Any ideas?
  69. new exhaust with #s
  70. Main bearing Torque Values? '94 4.6L SLS
  71. What tools needed to replace idle control motor on N*?
  72. Sooty Stalling 98 Deville
  73. New N* Owner - What to look for?
  74. Will the REAL Dexcool Please Stand Up?
  75. Rustling noise and loss of power
  76. Mass air flow sensor Help please
  77. oil cooler
  78. Engine just dies
  79. Swapping Engine To A Non-Northstar
  80. I have a little oil in the spark plug wells, anything to worry about?
  81. setting timing
  82. How about a Northstar Survival Guide
  83. what color is dexcool?
  84. Engine revving on its own
  85. Northstar remanufactured engine source
  86. "If it wasn't for bad luck....you know the rest
  87. Hitting 150k or more, is it realistic on my car?
  88. Time-Sert
  89. Bouncing Idle, new sparkplugs and oil after seafoam or TEC?
  90. front motor mount
  91. Is it Normal to Leak????
  92. Power steering leak
  93. 99 Northstar burning coolant somewhere!
  94. Data loging with performance monitoring and measuring devices
  95. Help With My 99' N* Hg Job
  96. Low oil pressure warning
  97. engine-trans bolts
  98. Valve Train Ticking
  99. What peformance chip is better for 02 dts?
  100. Wrong headbolts
  101. Changing HG, will heads be ok?
  102. N* Stock Internals
  103. Oil missing from pan
  104. 93-99 Dis ????
  105. So, i just talked to one of the engineers at GM that worked on the northstar
  106. 02 deville spark plug replacement
  107. Finding New Mechanic: Questions to Ask
  108. Myth!!!!! Octane 99 and prior VS 00+
  109. Interesting problem - highway stalling
  110. just installed alternator, NOW WHAT!
  111. How much horsepower in 1997 Professional Chassis (Limo)?
  112. A\C Question!!!!!!!!!!!!!!
  113. How to get out cylinder head alignment bushings???
  114. Tim Allens 400HP naturally asp. N*
  115. cracked engine block
  116. 1997 DeVille Head Gasket Repair
  117. Solid Motor Mount?
  118. lower motor mount
  119. low oil pressure / battery no charge on DIC
  120. '98 STS Camshaft
  121. 05 DTS Northstar fuel economy
  122. Leaking Head Gaskets & Extended Warranty
  123. p1375 icm 24x reference voltage too high and p1350 ignition control system
  124. 00 deville cylinder #4
  125. Northstar overheating causes
  126. locating dowels
  127. 00 deville P0300
  128. Changing spark plugs on a Northstar
  129. can't find anyone who knows the answer
  130. 94 sts strange issue
  131. 30,000 mile service
  132. 98 sts bogging and backfiring
  133. symptoms and cuases of headgasket
  134. 2007 Northstar VIN A PCM Pinouts
  135. Interesting Observation with Volant.
  136. Suggest new catorgory"Northstar Tuning"
  137. Question about Dexcool for the Northstar 4.6
  138. 99 STS in Distress
  139. p0300 Engine Misfire
  140. Need Some Feedback
  141. P0171 and P0174 codes: Intake leak?
  142. TC0073 ???? I have searched with not a REAL answer
  143. carbon on tailpipes, and why?
  144. are time serts asbsolutely necessary
  145. Replacing various parts
  146. new radiator
  147. N* HG Repair, Drop cradle or Pull engine?
  148. Cheap Mechanic in Des Moines?
  149. Cooling Fans NEED HELP.
  150. P094 = Tranny rebuilt?
  151. Problems with N* motor
  152. Considering used Northstar- need advice
  153. More Northstar head gasket questions...
  154. Help with two noises from '97 Northstar
  155. i need help on how to change my headgasket on my 99 seville sls
  156. Back Pressure in Cooling System?
  157. what is OBDII
  158. WANTED Time Sert Kit Rental
  159. **Update** Head gasket on 99 Deville
  160. '94 N* Touring coupe with PO37 code?
  161. Check Engine Codes, vibration
  162. 94 STS Won't accelerate w/o almost stalling the engine.
  163. broken coolant reservoir in my N*
  164. Water pump replacement
  165. 2000 N* is it safe to fill it with a non sinthetic oil?
  166. Sudden drop in fuel economy with AC on
  167. Lambo V12 similiar to N*?
  168. Timing chain tensioner tool
  169. Could a bad catalytic converter also decrease my gas mileage?
  170. Is DEX save for engines?
  171. still overheating
  172. Replaced your Power Steering Pump? Come on IN!!!
  173. 01Deville MISFIRE
  174. 99 N* Issue
  175. bad cylinder
  176. Think Northstar headgaskets are expensive??
  177. Coolant Smell after Shut Down?
  178. 00 DeVille check coolant level
  179. dyno #s
  180. Aurora N* questions
  181. Cheapest way to do HG's?????
  182. I found my leak, now i need help
  183. Is the N* overrated?
  184. Northstar crate or rebuild??
  185. Timesert pulled when torquing headbolts-What Now??
  186. I Need Cheap 97 insert kit
  187. 99 Deville over heating NOT HG I think
  188. 02/03 Alternator regulator
  189. 98 deville fluttering sound
  190. A/C Recharging Help
  191. 99 ELDO coolant level Question.
  192. Sign of upcoming headgasket problem?
  193. head bolts
  194. tachometer like a rollercoaster...
  195. overheating problem
  196. Northstar owner loosing faith
  197. Fuel Injector Problem I Think
  198. Transmission Fluid
  199. Alternator
  200. Coolant Loss and Overheating
  201. Harmonic Balancer. Dangerous?
  202. Someone please help, i need to know whats this part.
  203. Suspension compressor lube and NRV - help!
  204. Superchargers are here!
  205. 93 to 99 O/H assembly
  206. 93 to 99 Northstar dis-assembly and inspection
  207. RWD Northstar information
  208. 2000 to 2004 or 5 Northstar information
  209. 4.4L information
  210. Northstar "check coolant level" -- trying to understand basics
  211. Northstar head gaskets replaced -- a good thing?
  212. Head Bolt Torque Value?
  213. Biggest Question To All..
  214. Re-mounting PCM - Idea?
  215. Coolant use
  216. How to clean Piston Rings my way
  217. 4T80E 3.11 to 3.71 swap
  218. Differences in Northstars - '93-'97, also cheap head gasket fix...
  219. What weight and type oil to use?
  220. Rochester QJ and N* Throttlebodies
  221. Another coolant/radiator/headgasket question
  222. northstar shuts down
  223. Head Gasket or Something Else (Steamy Exhaust)
  224. Help with codes from DIC
  225. need N* casting/part#s for ID
  226. How do you pull injectors????
  227. Crank sensor and PCM History
  228. For you guys who have done a headgasket job on the 4.6
  229. Camshaft Pulley will not come off!!
  230. Volant - The long awaited very custom install (pics)
  231. Older (95) Northstar Re-Torque?
  232. Need Help DIC Warning Messages (w/Codes!)
  233. pricing Time Serts
  234. Second Head Gasket problem, 93 Eldorado
  235. '05 DeVille, Two Black Cam Covers?
  236. fuel system tune up?
  237. changing N* oil w/o lift
  238. N* teardown for successful timing on assembly
  239. Factory strut tower brace and "dogbones" - can i do better?
  240. 00 to 05 T-body Dimensions
  241. How bad am I getting screwed?
  242. 97' deville---new radiator but now losing engine oil
  243. In Need of Timersert
  244. I think it's the Tensioner
  245. Induction system and adhesives
  246. top speed
  247. 1997 cadillac devill d,elegance
  248. '95 SLS Rough Idle
  249. HELP! Code P1646.. Evaporative emission (EVAP) vent Solenoid Control Circuit
  250. NS300L Insert System, Anyone have these kind?