: Northstar Engines and System Technical Discussion



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  1. Is it Normal to Leak????
  2. Power steering leak
  3. 99 Northstar burning coolant somewhere!
  4. Data loging with performance monitoring and measuring devices
  5. Help With My 99' N* Hg Job
  6. Low oil pressure warning
  7. engine-trans bolts
  8. Valve Train Ticking
  9. What peformance chip is better for 02 dts?
  10. Wrong headbolts
  11. Changing HG, will heads be ok?
  12. N* Stock Internals
  13. Oil missing from pan
  14. 93-99 Dis ????
  15. So, i just talked to one of the engineers at GM that worked on the northstar
  16. 02 deville spark plug replacement
  17. Finding New Mechanic: Questions to Ask
  18. Myth!!!!! Octane 99 and prior VS 00+
  19. Interesting problem - highway stalling
  20. just installed alternator, NOW WHAT!
  21. How much horsepower in 1997 Professional Chassis (Limo)?
  22. A\C Question!!!!!!!!!!!!!!
  23. How to get out cylinder head alignment bushings???
  24. Tim Allens 400HP naturally asp. N*
  25. cracked engine block
  26. 1997 DeVille Head Gasket Repair
  27. Solid Motor Mount?
  28. lower motor mount
  29. low oil pressure / battery no charge on DIC
  30. '98 STS Camshaft
  31. 05 DTS Northstar fuel economy
  32. Leaking Head Gaskets & Extended Warranty
  33. p1375 icm 24x reference voltage too high and p1350 ignition control system
  34. 00 deville cylinder #4
  35. Northstar overheating causes
  36. locating dowels
  37. 00 deville P0300
  38. Changing spark plugs on a Northstar
  39. can't find anyone who knows the answer
  40. 94 sts strange issue
  41. 30,000 mile service
  42. 98 sts bogging and backfiring
  43. symptoms and cuases of headgasket
  44. 2007 Northstar VIN A PCM Pinouts
  45. Interesting Observation with Volant.
  46. Suggest new catorgory"Northstar Tuning"
  47. Question about Dexcool for the Northstar 4.6
  48. 99 STS in Distress
  49. p0300 Engine Misfire
  50. Need Some Feedback
  51. P0171 and P0174 codes: Intake leak?
  52. TC0073 ???? I have searched with not a REAL answer
  53. carbon on tailpipes, and why?
  54. are time serts asbsolutely necessary
  55. Replacing various parts
  56. new radiator
  57. N* HG Repair, Drop cradle or Pull engine?
  58. Cheap Mechanic in Des Moines?
  59. Cooling Fans NEED HELP.
  60. P094 = Tranny rebuilt?
  61. Problems with N* motor
  62. Considering used Northstar- need advice
  63. More Northstar head gasket questions...
  64. Help with two noises from '97 Northstar
  65. i need help on how to change my headgasket on my 99 seville sls
  66. Back Pressure in Cooling System?
  67. what is OBDII
  68. WANTED Time Sert Kit Rental
  69. **Update** Head gasket on 99 Deville
  70. '94 N* Touring coupe with PO37 code?
  71. Check Engine Codes, vibration
  72. 94 STS Won't accelerate w/o almost stalling the engine.
  73. broken coolant reservoir in my N*
  74. Water pump replacement
  75. 2000 N* is it safe to fill it with a non sinthetic oil?
  76. Sudden drop in fuel economy with AC on
  77. Lambo V12 similiar to N*?
  78. Timing chain tensioner tool
  79. Could a bad catalytic converter also decrease my gas mileage?
  80. Is DEX save for engines?
  81. still overheating
  82. Replaced your Power Steering Pump? Come on IN!!!
  83. 01Deville MISFIRE
  84. 99 N* Issue
  85. bad cylinder
  86. Think Northstar headgaskets are expensive??
  87. Coolant Smell after Shut Down?
  88. 00 DeVille check coolant level
  89. dyno #s
  90. Aurora N* questions
  91. Cheapest way to do HG's?????
  92. I found my leak, now i need help
  93. Is the N* overrated?
  94. Northstar crate or rebuild??
  95. Timesert pulled when torquing headbolts-What Now??
  96. I Need Cheap 97 insert kit
  97. 99 Deville over heating NOT HG I think
  98. 02/03 Alternator regulator
  99. 98 deville fluttering sound
  100. A/C Recharging Help
  101. 99 ELDO coolant level Question.
  102. Sign of upcoming headgasket problem?
  103. head bolts
  104. tachometer like a rollercoaster...
  105. overheating problem
  106. Northstar owner loosing faith
  107. Fuel Injector Problem I Think
  108. Transmission Fluid
  109. Alternator
  110. Coolant Loss and Overheating
  111. Harmonic Balancer. Dangerous?
  112. Someone please help, i need to know whats this part.
  113. Suspension compressor lube and NRV - help!
  114. Superchargers are here!
  115. 93 to 99 O/H assembly
  116. 93 to 99 Northstar dis-assembly and inspection
  117. RWD Northstar information
  118. 2000 to 2004 or 5 Northstar information
  119. 4.4L information
  120. Northstar "check coolant level" -- trying to understand basics
  121. Northstar head gaskets replaced -- a good thing?
  122. Head Bolt Torque Value?
  123. Biggest Question To All..
  124. Re-mounting PCM - Idea?
  125. Coolant use
  126. How to clean Piston Rings my way
  127. 4T80E 3.11 to 3.71 swap
  128. Differences in Northstars - '93-'97, also cheap head gasket fix...
  129. What weight and type oil to use?
  130. Rochester QJ and N* Throttlebodies
  131. Another coolant/radiator/headgasket question
  132. northstar shuts down
  133. Head Gasket or Something Else (Steamy Exhaust)
  134. Help with codes from DIC
  135. need N* casting/part#s for ID
  136. How do you pull injectors????
  137. Crank sensor and PCM History
  138. For you guys who have done a headgasket job on the 4.6
  139. Camshaft Pulley will not come off!!
  140. Volant - The long awaited very custom install (pics)
  141. Older (95) Northstar Re-Torque?
  142. Need Help DIC Warning Messages (w/Codes!)
  143. pricing Time Serts
  144. Second Head Gasket problem, 93 Eldorado
  145. '05 DeVille, Two Black Cam Covers?
  146. fuel system tune up?
  147. changing N* oil w/o lift
  148. N* teardown for successful timing on assembly
  149. Factory strut tower brace and "dogbones" - can i do better?
  150. 00 to 05 T-body Dimensions
  151. How bad am I getting screwed?
  152. 97' deville---new radiator but now losing engine oil
  153. In Need of Timersert
  154. I think it's the Tensioner
  155. Induction system and adhesives
  156. top speed
  157. 1997 cadillac devill d,elegance
  158. '95 SLS Rough Idle
  159. HELP! Code P1646.. Evaporative emission (EVAP) vent Solenoid Control Circuit
  160. NS300L Insert System, Anyone have these kind?
  161. Nitrous is Here!!
  162. Presidential Limo Breaks Down
  163. Surge Tank
  164. Need Help Guys 00 Northstar Coil Problem
  165. CHRFAB Intake Manifold
  166. Looked up codes but still confused
  167. Head gasket problem in '97 STS, looking for a new engine
  168. TCC codes P0741 & P1860 questions
  169. Transmission Swap
  170. 1997 STS problems
  171. O2 repair-Domino Effect-Need Help
  172. 98 STS engine swap -need a bit of help
  173. performance options
  174. separating motor and transaxle??
  175. cant fix hard hot start for the life of me
  176. Water Pump Replaced (99 Deville)
  177. 95 SLS n* timesert completed-special tool made!
  178. my magnaflow exhaus vid yes another
  179. Translate 96 Codes
  180. What percentage of Northstar engines have headgasket problems?
  181. Coolant
  182. Leaking Transmission Fluid
  183. intermittent random oil pressure light?
  184. Northstar average engine temp ?
  185. A Little "smoke" From The Back Of A 1993 N* Sts
  186. 99 Deville Check Engine Light
  187. N* Injectors?
  188. My 2001 STS' Repair History
  189. Magnaflow exhaust
  190. timings off
  191. High Idle + no Brake
  192. 2000 ElDorado Coach Builders LTD Hard Boot
  193. Serpentine Belt Shredded/radiator Has Leak Now
  194. Temp rise after giving it gas
  195. Timeserts good for the WOT tune-up?
  196. Prestone Extended Life Coolant - All Makes and Models
  197. any tips for inserting fuel injector back into fuel rail?
  198. Timsert Kit for sale unused, 1999/earlier N*
  199. Videoclip of new Exhaust (for those who missed my other thread)
  200. ok kinda noobish but give me a quick reply
  201. Mystery Grind in Transmission, Engine, Where?
  202. how long does it take to replace and install fuel injectors
  203. radiator
  204. The NEW Cat-Back is DONE! (kinda)
  205. where can I purchase a fuel injector remover tool?
  206. Oil (lots) in No. 2 cyl
  207. NEED HELP, T061, and S030 codes, have info but no solution
  208. Anyone got a Timesert Bigsert Kit?
  209. Time-Sert
  210. Name this part (again)
  211. Engine Overheat Brake Caliper??
  212. Blue smoke.
  213. Head Gasket Repair Questions
  214. Northstar Starting problems
  215. Torque Management VS Traction Control Reduced Torque
  216. 4T80E Modification
  217. electrical problem Northstar
  218. Intake full of sludge/Intake removal
  219. HP Tuners now offering V6 & V8 Tuning Systems
  220. Need help and advice on installing the new Northstar
  221. 94 eldo pcm code P083
  222. Northstar Powered MR2?
  223. A river runs through it - valve covers and PCV baffles
  224. put on magnaflow mufflers still quiet?
  225. 1997 Cadillac STS
  226. Whats tickin, good lookin?
  227. NorthStar Missing?
  228. Better mpg in the city with the traction control OFF?
  229. Moving Tapping Noise/Knocking Noises
  230. quick performance question
  231. 94 Sts Export Ecm
  232. where can i find the serial # on the v8 northstar 98
  233. Oil Pressure Problem (yeah another one...)
  234. GM EOS Asst Lube
  235. Northstar Oil Change Procedure
  236. N* No Start After Head gasket
  237. Tell me about dyno's please
  238. Engine oil cooler question
  239. Oil Cooler
  240. Question on a code....
  241. power max spark plug wire set
  242. Engine Power Circuit?
  243. some new oil information
  244. spark plugs and wires
  245. Shell Rotella T 10W-30 CJ-4/SM
  246. Question about varying coolant temp
  247. Question on Exhasut smoke/Chemical agent repair
  248. Blue/black Smoke only after Idle
  249. 94 SLS back cyls spark, don't fire, smoke
  250. Knocking On My Northstar Engine 96 STS Sevile