: Northstar Engines and System Technical Discussion



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  1. Turning off Injectors = Save fuel?
  2. A/C Question
  3. Two pricing question
  4. 1995 STS Performance ?
  5. I052 Code + Stalling + Instrument Panel Reset
  6. Oil pressure Sending Unit
  7. P/S pump leak
  8. Oil Leak
  9. "Low Refrigerant" & "A/C Compressor Off" B1348
  10. 95 Deville Concours performance
  11. '03 STS making turbine-like sound for 5-10 secs on cold start. Any ideas?
  12. new exhaust with #s
  13. Main bearing Torque Values? '94 4.6L SLS
  14. What tools needed to replace idle control motor on N*?
  15. Sooty Stalling 98 Deville
  16. New N* Owner - What to look for?
  17. Will the REAL Dexcool Please Stand Up?
  18. Rustling noise and loss of power
  19. Mass air flow sensor Help please
  20. oil cooler
  21. Engine just dies
  22. Swapping Engine To A Non-Northstar
  23. I have a little oil in the spark plug wells, anything to worry about?
  24. setting timing
  25. How about a Northstar Survival Guide
  26. what color is dexcool?
  27. Engine revving on its own
  28. Northstar remanufactured engine source
  29. "If it wasn't for bad luck....you know the rest
  30. Hitting 150k or more, is it realistic on my car?
  31. Time-Sert
  32. Bouncing Idle, new sparkplugs and oil after seafoam or TEC?
  33. front motor mount
  34. Is it Normal to Leak????
  35. Power steering leak
  36. 99 Northstar burning coolant somewhere!
  37. Data loging with performance monitoring and measuring devices
  38. Help With My 99' N* Hg Job
  39. Low oil pressure warning
  40. engine-trans bolts
  41. Valve Train Ticking
  42. What peformance chip is better for 02 dts?
  43. Wrong headbolts
  44. Changing HG, will heads be ok?
  45. N* Stock Internals
  46. Oil missing from pan
  47. 93-99 Dis ????
  48. So, i just talked to one of the engineers at GM that worked on the northstar
  49. 02 deville spark plug replacement
  50. Finding New Mechanic: Questions to Ask
  51. Myth!!!!! Octane 99 and prior VS 00+
  52. Interesting problem - highway stalling
  53. just installed alternator, NOW WHAT!
  54. How much horsepower in 1997 Professional Chassis (Limo)?
  55. A\C Question!!!!!!!!!!!!!!
  56. How to get out cylinder head alignment bushings???
  57. Tim Allens 400HP naturally asp. N*
  58. cracked engine block
  59. 1997 DeVille Head Gasket Repair
  60. Solid Motor Mount?
  61. lower motor mount
  62. low oil pressure / battery no charge on DIC
  63. '98 STS Camshaft
  64. 05 DTS Northstar fuel economy
  65. Leaking Head Gaskets & Extended Warranty
  66. p1375 icm 24x reference voltage too high and p1350 ignition control system
  67. 00 deville cylinder #4
  68. Northstar overheating causes
  69. locating dowels
  70. 00 deville P0300
  71. Changing spark plugs on a Northstar
  72. can't find anyone who knows the answer
  73. 94 sts strange issue
  74. 30,000 mile service
  75. 98 sts bogging and backfiring
  76. symptoms and cuases of headgasket
  77. 2007 Northstar VIN A PCM Pinouts
  78. Interesting Observation with Volant.
  79. Suggest new catorgory"Northstar Tuning"
  80. Question about Dexcool for the Northstar 4.6
  81. 99 STS in Distress
  82. p0300 Engine Misfire
  83. Need Some Feedback
  84. P0171 and P0174 codes: Intake leak?
  85. TC0073 ???? I have searched with not a REAL answer
  86. carbon on tailpipes, and why?
  87. are time serts asbsolutely necessary
  88. Replacing various parts
  89. new radiator
  90. N* HG Repair, Drop cradle or Pull engine?
  91. Cheap Mechanic in Des Moines?
  92. Cooling Fans NEED HELP.
  93. P094 = Tranny rebuilt?
  94. Problems with N* motor
  95. Considering used Northstar- need advice
  96. More Northstar head gasket questions...
  97. Help with two noises from '97 Northstar
  98. i need help on how to change my headgasket on my 99 seville sls
  99. Back Pressure in Cooling System?
  100. what is OBDII
  101. WANTED Time Sert Kit Rental
  102. **Update** Head gasket on 99 Deville
  103. '94 N* Touring coupe with PO37 code?
  104. Check Engine Codes, vibration
  105. 94 STS Won't accelerate w/o almost stalling the engine.
  106. broken coolant reservoir in my N*
  107. Water pump replacement
  108. 2000 N* is it safe to fill it with a non sinthetic oil?
  109. Sudden drop in fuel economy with AC on
  110. Lambo V12 similiar to N*?
  111. Timing chain tensioner tool
  112. Could a bad catalytic converter also decrease my gas mileage?
  113. Is DEX save for engines?
  114. still overheating
  115. Replaced your Power Steering Pump? Come on IN!!!
  116. 01Deville MISFIRE
  117. 99 N* Issue
  118. bad cylinder
  119. Think Northstar headgaskets are expensive??
  120. Coolant Smell after Shut Down?
  121. 00 DeVille check coolant level
  122. dyno #s
  123. Aurora N* questions
  124. Cheapest way to do HG's?????
  125. I found my leak, now i need help
  126. Is the N* overrated?
  127. Northstar crate or rebuild??
  128. Timesert pulled when torquing headbolts-What Now??
  129. I Need Cheap 97 insert kit
  130. 99 Deville over heating NOT HG I think
  131. 02/03 Alternator regulator
  132. 98 deville fluttering sound
  133. A/C Recharging Help
  134. 99 ELDO coolant level Question.
  135. Sign of upcoming headgasket problem?
  136. head bolts
  137. tachometer like a rollercoaster...
  138. overheating problem
  139. Northstar owner loosing faith
  140. Fuel Injector Problem I Think
  141. Transmission Fluid
  142. Alternator
  143. Coolant Loss and Overheating
  144. Harmonic Balancer. Dangerous?
  145. Someone please help, i need to know whats this part.
  146. Suspension compressor lube and NRV - help!
  147. Superchargers are here!
  148. 93 to 99 O/H assembly
  149. 93 to 99 Northstar dis-assembly and inspection
  150. RWD Northstar information
  151. 2000 to 2004 or 5 Northstar information
  152. 4.4L information
  153. Northstar "check coolant level" -- trying to understand basics
  154. Northstar head gaskets replaced -- a good thing?
  155. Head Bolt Torque Value?
  156. Biggest Question To All..
  157. Re-mounting PCM - Idea?
  158. Coolant use
  159. How to clean Piston Rings my way
  160. 4T80E 3.11 to 3.71 swap
  161. Differences in Northstars - '93-'97, also cheap head gasket fix...
  162. What weight and type oil to use?
  163. Rochester QJ and N* Throttlebodies
  164. Another coolant/radiator/headgasket question
  165. northstar shuts down
  166. Head Gasket or Something Else (Steamy Exhaust)
  167. Help with codes from DIC
  168. need N* casting/part#s for ID
  169. How do you pull injectors????
  170. Crank sensor and PCM History
  171. For you guys who have done a headgasket job on the 4.6
  172. Camshaft Pulley will not come off!!
  173. Volant - The long awaited very custom install (pics)
  174. Older (95) Northstar Re-Torque?
  175. Need Help DIC Warning Messages (w/Codes!)
  176. pricing Time Serts
  177. Second Head Gasket problem, 93 Eldorado
  178. '05 DeVille, Two Black Cam Covers?
  179. fuel system tune up?
  180. changing N* oil w/o lift
  181. N* teardown for successful timing on assembly
  182. Factory strut tower brace and "dogbones" - can i do better?
  183. 00 to 05 T-body Dimensions
  184. How bad am I getting screwed?
  185. 97' deville---new radiator but now losing engine oil
  186. In Need of Timersert
  187. I think it's the Tensioner
  188. Induction system and adhesives
  189. top speed
  190. 1997 cadillac devill d,elegance
  191. '95 SLS Rough Idle
  192. HELP! Code P1646.. Evaporative emission (EVAP) vent Solenoid Control Circuit
  193. NS300L Insert System, Anyone have these kind?
  194. Nitrous is Here!!
  195. Presidential Limo Breaks Down
  196. Surge Tank
  197. Need Help Guys 00 Northstar Coil Problem
  198. CHRFAB Intake Manifold
  199. Looked up codes but still confused
  200. Head gasket problem in '97 STS, looking for a new engine
  201. TCC codes P0741 & P1860 questions
  202. Transmission Swap
  203. 1997 STS problems
  204. O2 repair-Domino Effect-Need Help
  205. 98 STS engine swap -need a bit of help
  206. performance options
  207. separating motor and transaxle??
  208. cant fix hard hot start for the life of me
  209. Water Pump Replaced (99 Deville)
  210. 95 SLS n* timesert completed-special tool made!
  211. my magnaflow exhaus vid yes another
  212. Translate 96 Codes
  213. What percentage of Northstar engines have headgasket problems?
  214. Coolant
  215. Leaking Transmission Fluid
  216. intermittent random oil pressure light?
  217. Northstar average engine temp ?
  218. A Little "smoke" From The Back Of A 1993 N* Sts
  219. 99 Deville Check Engine Light
  220. N* Injectors?
  221. My 2001 STS' Repair History
  222. Magnaflow exhaust
  223. timings off
  224. High Idle + no Brake
  225. 2000 ElDorado Coach Builders LTD Hard Boot
  226. Serpentine Belt Shredded/radiator Has Leak Now
  227. Temp rise after giving it gas
  228. Timeserts good for the WOT tune-up?
  229. Prestone Extended Life Coolant - All Makes and Models
  230. any tips for inserting fuel injector back into fuel rail?
  231. Timsert Kit for sale unused, 1999/earlier N*
  232. Videoclip of new Exhaust (for those who missed my other thread)
  233. ok kinda noobish but give me a quick reply
  234. Mystery Grind in Transmission, Engine, Where?
  235. how long does it take to replace and install fuel injectors
  236. radiator
  237. The NEW Cat-Back is DONE! (kinda)
  238. where can I purchase a fuel injector remover tool?
  239. Oil (lots) in No. 2 cyl
  240. NEED HELP, T061, and S030 codes, have info but no solution
  241. Anyone got a Timesert Bigsert Kit?
  242. Time-Sert
  243. Name this part (again)
  244. Engine Overheat Brake Caliper??
  245. Blue smoke.
  246. Head Gasket Repair Questions
  247. Northstar Starting problems
  248. Torque Management VS Traction Control Reduced Torque
  249. 4T80E Modification
  250. electrical problem Northstar