: Northstar Engines and System Technical Discussion



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  1. I052 Code + Stalling + Instrument Panel Reset
  2. Oil pressure Sending Unit
  3. P/S pump leak
  4. Oil Leak
  5. "Low Refrigerant" & "A/C Compressor Off" B1348
  6. 95 Deville Concours performance
  7. '03 STS making turbine-like sound for 5-10 secs on cold start. Any ideas?
  8. new exhaust with #s
  9. Main bearing Torque Values? '94 4.6L SLS
  10. What tools needed to replace idle control motor on N*?
  11. Sooty Stalling 98 Deville
  12. New N* Owner - What to look for?
  13. Will the REAL Dexcool Please Stand Up?
  14. Rustling noise and loss of power
  15. Mass air flow sensor Help please
  16. oil cooler
  17. Engine just dies
  18. Swapping Engine To A Non-Northstar
  19. I have a little oil in the spark plug wells, anything to worry about?
  20. setting timing
  21. How about a Northstar Survival Guide
  22. what color is dexcool?
  23. Engine revving on its own
  24. Northstar remanufactured engine source
  25. "If it wasn't for bad luck....you know the rest
  26. Hitting 150k or more, is it realistic on my car?
  27. Time-Sert
  28. Bouncing Idle, new sparkplugs and oil after seafoam or TEC?
  29. front motor mount
  30. Is it Normal to Leak????
  31. Power steering leak
  32. 99 Northstar burning coolant somewhere!
  33. Data loging with performance monitoring and measuring devices
  34. Help With My 99' N* Hg Job
  35. Low oil pressure warning
  36. engine-trans bolts
  37. Valve Train Ticking
  38. What peformance chip is better for 02 dts?
  39. Wrong headbolts
  40. Changing HG, will heads be ok?
  41. N* Stock Internals
  42. Oil missing from pan
  43. 93-99 Dis ????
  44. So, i just talked to one of the engineers at GM that worked on the northstar
  45. 02 deville spark plug replacement
  46. Finding New Mechanic: Questions to Ask
  47. Myth!!!!! Octane 99 and prior VS 00+
  48. Interesting problem - highway stalling
  49. just installed alternator, NOW WHAT!
  50. How much horsepower in 1997 Professional Chassis (Limo)?
  51. A\C Question!!!!!!!!!!!!!!
  52. How to get out cylinder head alignment bushings???
  53. Tim Allens 400HP naturally asp. N*
  54. cracked engine block
  55. 1997 DeVille Head Gasket Repair
  56. Solid Motor Mount?
  57. lower motor mount
  58. low oil pressure / battery no charge on DIC
  59. '98 STS Camshaft
  60. 05 DTS Northstar fuel economy
  61. Leaking Head Gaskets & Extended Warranty
  62. p1375 icm 24x reference voltage too high and p1350 ignition control system
  63. 00 deville cylinder #4
  64. Northstar overheating causes
  65. locating dowels
  66. 00 deville P0300
  67. Changing spark plugs on a Northstar
  68. can't find anyone who knows the answer
  69. 94 sts strange issue
  70. 30,000 mile service
  71. 98 sts bogging and backfiring
  72. symptoms and cuases of headgasket
  73. 2007 Northstar VIN A PCM Pinouts
  74. Interesting Observation with Volant.
  75. Suggest new catorgory"Northstar Tuning"
  76. Question about Dexcool for the Northstar 4.6
  77. 99 STS in Distress
  78. p0300 Engine Misfire
  79. Need Some Feedback
  80. P0171 and P0174 codes: Intake leak?
  81. TC0073 ???? I have searched with not a REAL answer
  82. carbon on tailpipes, and why?
  83. are time serts asbsolutely necessary
  84. Replacing various parts
  85. new radiator
  86. N* HG Repair, Drop cradle or Pull engine?
  87. Cheap Mechanic in Des Moines?
  88. Cooling Fans NEED HELP.
  89. P094 = Tranny rebuilt?
  90. Problems with N* motor
  91. Considering used Northstar- need advice
  92. More Northstar head gasket questions...
  93. Help with two noises from '97 Northstar
  94. i need help on how to change my headgasket on my 99 seville sls
  95. Back Pressure in Cooling System?
  96. what is OBDII
  97. WANTED Time Sert Kit Rental
  98. **Update** Head gasket on 99 Deville
  99. '94 N* Touring coupe with PO37 code?
  100. Check Engine Codes, vibration
  101. 94 STS Won't accelerate w/o almost stalling the engine.
  102. broken coolant reservoir in my N*
  103. Water pump replacement
  104. 2000 N* is it safe to fill it with a non sinthetic oil?
  105. Sudden drop in fuel economy with AC on
  106. Lambo V12 similiar to N*?
  107. Timing chain tensioner tool
  108. Could a bad catalytic converter also decrease my gas mileage?
  109. Is DEX save for engines?
  110. still overheating
  111. Replaced your Power Steering Pump? Come on IN!!!
  112. 01Deville MISFIRE
  113. 99 N* Issue
  114. bad cylinder
  115. Think Northstar headgaskets are expensive??
  116. Coolant Smell after Shut Down?
  117. 00 DeVille check coolant level
  118. dyno #s
  119. Aurora N* questions
  120. Cheapest way to do HG's?????
  121. I found my leak, now i need help
  122. Is the N* overrated?
  123. Northstar crate or rebuild??
  124. Timesert pulled when torquing headbolts-What Now??
  125. I Need Cheap 97 insert kit
  126. 99 Deville over heating NOT HG I think
  127. 02/03 Alternator regulator
  128. 98 deville fluttering sound
  129. A/C Recharging Help
  130. 99 ELDO coolant level Question.
  131. Sign of upcoming headgasket problem?
  132. head bolts
  133. tachometer like a rollercoaster...
  134. overheating problem
  135. Northstar owner loosing faith
  136. Fuel Injector Problem I Think
  137. Transmission Fluid
  138. Alternator
  139. Coolant Loss and Overheating
  140. Harmonic Balancer. Dangerous?
  141. Someone please help, i need to know whats this part.
  142. Suspension compressor lube and NRV - help!
  143. Superchargers are here!
  144. 93 to 99 O/H assembly
  145. 93 to 99 Northstar dis-assembly and inspection
  146. RWD Northstar information
  147. 2000 to 2004 or 5 Northstar information
  148. 4.4L information
  149. Northstar "check coolant level" -- trying to understand basics
  150. Northstar head gaskets replaced -- a good thing?
  151. Head Bolt Torque Value?
  152. Biggest Question To All..
  153. Re-mounting PCM - Idea?
  154. Coolant use
  155. How to clean Piston Rings my way
  156. 4T80E 3.11 to 3.71 swap
  157. Differences in Northstars - '93-'97, also cheap head gasket fix...
  158. What weight and type oil to use?
  159. Rochester QJ and N* Throttlebodies
  160. Another coolant/radiator/headgasket question
  161. northstar shuts down
  162. Head Gasket or Something Else (Steamy Exhaust)
  163. Help with codes from DIC
  164. need N* casting/part#s for ID
  165. How do you pull injectors????
  166. Crank sensor and PCM History
  167. For you guys who have done a headgasket job on the 4.6
  168. Camshaft Pulley will not come off!!
  169. Volant - The long awaited very custom install (pics)
  170. Older (95) Northstar Re-Torque?
  171. Need Help DIC Warning Messages (w/Codes!)
  172. pricing Time Serts
  173. Second Head Gasket problem, 93 Eldorado
  174. '05 DeVille, Two Black Cam Covers?
  175. fuel system tune up?
  176. changing N* oil w/o lift
  177. N* teardown for successful timing on assembly
  178. Factory strut tower brace and "dogbones" - can i do better?
  179. 00 to 05 T-body Dimensions
  180. How bad am I getting screwed?
  181. 97' deville---new radiator but now losing engine oil
  182. In Need of Timersert
  183. I think it's the Tensioner
  184. Induction system and adhesives
  185. top speed
  186. 1997 cadillac devill d,elegance
  187. '95 SLS Rough Idle
  188. HELP! Code P1646.. Evaporative emission (EVAP) vent Solenoid Control Circuit
  189. NS300L Insert System, Anyone have these kind?
  190. Nitrous is Here!!
  191. Presidential Limo Breaks Down
  192. Surge Tank
  193. Need Help Guys 00 Northstar Coil Problem
  194. CHRFAB Intake Manifold
  195. Looked up codes but still confused
  196. Head gasket problem in '97 STS, looking for a new engine
  197. TCC codes P0741 & P1860 questions
  198. Transmission Swap
  199. 1997 STS problems
  200. O2 repair-Domino Effect-Need Help
  201. 98 STS engine swap -need a bit of help
  202. performance options
  203. separating motor and transaxle??
  204. cant fix hard hot start for the life of me
  205. Water Pump Replaced (99 Deville)
  206. 95 SLS n* timesert completed-special tool made!
  207. my magnaflow exhaus vid yes another
  208. Translate 96 Codes
  209. What percentage of Northstar engines have headgasket problems?
  210. Coolant
  211. Leaking Transmission Fluid
  212. intermittent random oil pressure light?
  213. Northstar average engine temp ?
  214. A Little "smoke" From The Back Of A 1993 N* Sts
  215. 99 Deville Check Engine Light
  216. N* Injectors?
  217. My 2001 STS' Repair History
  218. Magnaflow exhaust
  219. timings off
  220. High Idle + no Brake
  221. 2000 ElDorado Coach Builders LTD Hard Boot
  222. Serpentine Belt Shredded/radiator Has Leak Now
  223. Temp rise after giving it gas
  224. Timeserts good for the WOT tune-up?
  225. Prestone Extended Life Coolant - All Makes and Models
  226. any tips for inserting fuel injector back into fuel rail?
  227. Timsert Kit for sale unused, 1999/earlier N*
  228. Videoclip of new Exhaust (for those who missed my other thread)
  229. ok kinda noobish but give me a quick reply
  230. Mystery Grind in Transmission, Engine, Where?
  231. how long does it take to replace and install fuel injectors
  232. radiator
  233. The NEW Cat-Back is DONE! (kinda)
  234. where can I purchase a fuel injector remover tool?
  235. Oil (lots) in No. 2 cyl
  236. NEED HELP, T061, and S030 codes, have info but no solution
  237. Anyone got a Timesert Bigsert Kit?
  238. Time-Sert
  239. Name this part (again)
  240. Engine Overheat Brake Caliper??
  241. Blue smoke.
  242. Head Gasket Repair Questions
  243. Northstar Starting problems
  244. Torque Management VS Traction Control Reduced Torque
  245. 4T80E Modification
  246. electrical problem Northstar
  247. Intake full of sludge/Intake removal
  248. HP Tuners now offering V6 & V8 Tuning Systems
  249. Need help and advice on installing the new Northstar
  250. 94 eldo pcm code P083