: Northstar Engines and System Technical Discussion



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