: Northstar Engines and System Technical Discussion



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