: Northstar Engines and System Technical Discussion



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  1. LT5 Vs Early Northstar
  2. 96 SLS Electrical Problems?
  3. Headgaskets?
  4. Twin Turbo or Supercharged...
  5. Mobil 5000, Conventional Oil?
  6. How to pull this out ?
  7. Oil leak!
  8. Rebuild bearings
  9. Engine Surge/Hesitate
  10. 2000 STS Spark Plug Thread Repair
  11. Hey BBOB (and others), was the LT1 ever considered
  12. oil change for 2001 cadi deville
  13. Phenolic Spacer Plates
  14. Cranks 5-10 seconds now, what's up?
  15. 96 STS N* squeaky pulley!?!?
  16. Spark Plug Question
  17. Fuel Pressure Check...
  18. Water Pump Tool?
  19. http://www.dragtimes.com/
  20. 99 STS - Blown Head Gaskets
  21. throttle body and egr tubes
  22. 99 Concourse, just going to buy then clonk
  23. Any Temp Seal For Head gaskets??
  24. Wow, this stinks
  25. Oxygen Sensor
  26. my engine on my 98....
  27. What could the problem be????
  28. OBD Codes
  29. Northstar Exhaust acoustic "tuning", Bbobinsky?
  30. '94 Deville n* h2O pipes behind engine rusted out
  31. Map sensor
  32. Help with codes for the Concourse
  33. problems with 94 deville 4.6L
  34. Which Fuel Pressure Regulator?
  35. New Application for the N*
  36. Engine miss
  37. Northstar engine miss
  38. 97 Deville Running poorly Help.
  39. EGR stuck = retarded timing?
  40. What is an MAF, and where can I find it?
  41. Spark Plugs on 94 STS.
  42. WOT, Premium Gas and Service Engine Soon Message
  43. Re: Didn't know where else to post this...
  44. Acetone and the Northstar
  45. whats with the front valve cover???
  46. Theory for Bbob: Fuel grade AGAIN ;)
  47. Need an Honest Opinion on my STS
  48. Plugs and Wires
  49. Missfire sensor
  50. Not head GASKET!
  51. 94 deville intake cover
  52. DIC controlls
  53. superchip
  54. Help my Cadillac Starts by itself
  55. Whats up with this "turbonoter"?
  56. Are there certain northstar engines to stay away from?
  57. 98 Eldo N* Cooling Issues..Now This?
  58. Bad injectors at 50K miles?
  59. Coolant supplement paradox (yeah this again :-)
  60. 95 sts mods
  61. Lifting Fuel Rail
  62. Engine miss when HOT outside.
  63. New Concours owner has PF61 question
  64. Catalytic converter
  65. Need help with O2 sensor.
  66. Just for laughs.....
  67. 94 N* motor pulled tips and ideas
  68. Hesitation
  69. too much money to replace a oil pan gasket
  70. Code PC0138 96 Deville? O2 sensor which one?
  71. Radiator hose looks warped and rubbing against engine...
  72. Transmission Fluid Under Pressure at Cap?
  73. Pcv Valve
  74. 2000 DeVille Waterpump
  75. Oil leak?..Not oil pan!
  76. Time-Serts for 96 N* Eldorado
  77. Rebuidling Heads on 96 Eldorado N* Engine
  78. Rebuilding Heads for 96 Eldorado
  79. MAP Problem?
  80. ECM/PCM Tuning
  81. New Northstar Motor Breakin ??
  82. Never fill up on gas when...
  83. Another overheat thread: '97 Deville N*
  84. Tune Up
  85. Northstar Timing Chains
  86. Do you have a Time-Sert kit, please help ?
  87. blown head or water pump
  88. 1996 Deville Won't Shift Stays in One gear Need Help Serious Techs
  89. Can a Water Pump Be Bad Without Leaking Or Making Noise?
  90. loose power steering rack
  91. Y / 9 What's the Difference?
  92. Blown head gasket repair? 96 deville
  93. 99 STS Starting hard, STALLING..Help!!
  94. Venting Cooling System?? Drill Hole??
  95. COP - Coil over Plug Question
  96. intake plenum bolt
  97. *98 Deville- Coolant in Oil?
  98. Code P076 on 94 STS and hard shifting help!
  99. 96 deville poping and rough running
  100. Tune Up on North*???
  101. Oil misinformation
  102. Just ordered used engine
  103. Honestly, how much interest in S/C or T/C the N*
  104. Cooling fan "on" temp?
  105. Nitrous?
  106. PCV Rattle
  107. Occasional tranny slippage: Shift solenoid???
  108. 93 eldorado northstar stalls out plz help!
  109. Racing Junk heads
  110. My Caddy won't start.....help!!
  111. Northstar TIME-SERT Kit for Sale.....
  112. 1st Self Work on 1994 STS
  113. How many miles can I drive my 1996? Problems will be?
  114. Engine died & no codes?
  115. Plumbing help on 99 STS
  116. WOT vs 4T80E vs. Timing Chain
  117. Exhaust Vids
  118. 99 STS Starting hard then STALLING..Help!!
  119. How did this happen?
  120. overheats sometimes
  121. Heat / AC cover ?
  122. ignition switch
  123. 94 Concours prob. after EGR cleaning P036
  124. 98 STS Motor mount busted
  125. Help with 98 STS part.
  126. Summit Turbo Mufflers?
  127. advice on correct coolant temps for 92 eldorado
  128. Is your N* running bad, hesitating, missing??
  129. Head gasket replacement
  130. Can DIC messages be cleared for good??
  131. Code I039??
  132. blown head gasket
  133. Strange rhythmic vibration 2000 DTS
  134. Electronic Speedometer Display
  135. Blue Devil Engine & Cooling system Sealer!?
  136. Major problems at 80K miles. Is this normal?
  137. Buzzing and ringing...
  138. Performance mod
  139. "flapper door" replacement?
  140. OBDII Programmers
  141. Limp Home what is it??
  142. 99 N doesnt come with factory strut tower bar?
  143. Before And After....(Mufflers)
  144. witch fuse?
  145. Coolant Change 98 Deville
  146. 96 Sedan Deville-Where is the thermostat located
  147. Engine Codes PC0300 & RF2560
  148. Hotrod with the N*
  149. Engine Swap Info
  150. chugging N*
  151. OK, tired of Headgasket worry...
  152. 96 SLS burning oil like it's gas
  153. Remove the water pump pulley
  154. Tool to remove the water pump pulley
  155. 95 Deville Oil Presure
  156. engine died
  157. Tune Up Time!
  158. 97eldo Need Help
  159. missing bolts on side of oilpan and A-frame...
  160. Torque strut removal and "engine tilt"
  161. Thread inserts?
  162. Can you use 10W-40 in a Northstar
  163. Are AC/Delco parts available only at the dealer?
  164. '98 Deville Rough Idle, Shaking, Stuttering Under Acceleration
  165. How do you properly use pellets? Northstar
  166. Engine seems to misfire a bit when it's cold or damp out
  167. coolant coming out of overflow hose like faucet '97 Eldo
  168. SES Misfiring DTC P0300 My hunch is.....
  169. Oil cooler line leak, 4.6 N*
  170. Tightening time saver and accuracy improved with simple trick
  171. It Happened,the dreaded overheat!
  172. Oil pump - what is the grove and the port for
  173. Any performance parts for the N*?
  174. Intermediate timeing chain shaft - O ring?
  175. 98 Eldo N* 4.6 Overheating
  176. ZEX ordered....
  177. Latest head bolt tightening spec?
  178. Corsa scrwwed me over!
  179. Help with emissions system
  180. Supercharged Northstar
  181. Bbob?? Could you look at this Link?
  182. My water pump belt is dancing around...
  183. Belt Tensioner Condition - Bboby?
  184. Northstar Timing Chain Re-Install & Head Gasket Re-install Feedback........
  185. '98 deville idle
  186. intake kit
  187. WOT advice
  188. SeaFoam Opinions...
  189. GXP-ify my sts?
  190. caprice vs Seville sts
  191. water pump/thermostat crossover housing leaking again
  192. Oil in spark plug chamber, How Bad Is This?
  193. Bizarre Coolant- A/C problem 98 Deville!!!
  194. Anybody got a stock calpack?
  195. Question about climate control.
  196. Remanufactured Northstar Engine
  197. 98 eldo jerking while stopped
  198. Dex Cool.....What going on?
  199. Compression test results 98 Seville
  200. Failed emissions test
  201. just bought 97 eldo std.
  202. Cylinder rings blown on 18 thousand miles??? (cylinder nr 8 totally w/o compression)
  203. Low Coolant Level
  204. Alternative to Platinum Plugs?
  205. Cylinder rings blown on 18 thousand miles??? (cylinder nr 8 totally w/o compression)
  206. Northstar oilpan
  207. 95 deville blown head gasket
  208. 3 qts oil in 3000 miles?
  209. 5% discount on parts!
  210. Things I should do when changing engines
  211. egr bench test / disassembly ?
  212. '98 cam to waterpump belt
  213. direct flow air filter intake
  214. belt
  215. Transmission Problem Not Sure Need Help Bad!!!!!!!
  216. Dex Cool is eating the gaskets?!!!
  217. 2003 SLS ECM code: DTC "P0300
  218. Cleaning fuel injectors
  219. Oversize pistons? Undersize bearings?
  220. HeadGasket
  221. oil smoke -- any suggestions?
  222. New to North stars
  223. AC 41-900 Replaced with the 41-950 plug
  224. Long Crankin
  225. egr valve test?
  226. AC Compressor changeout - success -
  227. Oil Question
  228. Question about the EGR valve
  229. My oil drain plug magnet is missing
  230. Code P1350
  231. aftermarket catalytic converter
  232. 93 STS starting problem
  233. N*--Built by ISUZU????
  234. Few STS questions..engine, suspension??
  235. Average Cost to replace Tranny on N*?
  236. Buying the Juice....
  237. Oil Residue/grease on section of Air filter on 96 N* Why?
  238. Oil level sensor (check oil level)
  239. loud noise in valve cover ?
  240. not licking to stop and slight oil leak
  241. Cracked oil pan...
  242. Magnaflow Hi Flow Cats
  243. Main Acc Drivebelt - Whine & Grind Noises
  244. a few questions i have.
  245. ZDP Right ? Bad ?
  246. Crossover changed, now smoking anit-freeze?
  247. P036 Since changing crossover
  248. Boggy Accel
  249. references for understanding the N*?
  250. Vapor lock