: Northstar Engines and System Technical Discussion



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  1. would WOT's get rid of this code?
  2. Midthrottle surge...
  3. schematics 95 SLS water pump
  4. Dead Eldorado
  5. question about mixing of octane at the pump
  6. Using 20w50 oil in N* 99STS
  7. Need help quick - 2000 vs 99 injectors
  8. the STS almost doesnt start...any ideas?
  9. P0171 - P0174
  10. Doing First Tune Up
  11. Transmission service at the dealer?
  12. best choice?
  13. CAT = good and ?
  14. 4 cylinder Northstar - 97 DeVille
  15. RWD N* Project update
  16. 97 STS Cranks but doesn't start - error codes
  17. small tweaks that help or not?
  18. Running ragged p0300....
  19. 97 Deville - Sensor trouble, Running poor
  20. bad dealer
  21. No pressure on hoses
  22. Test for cam position sensors 98+?
  23. stuck at this part
  24. 96 SLS sometimes hard to start
  25. low (or no) oil pressure
  26. 94 Seville not starting
  27. drag strip times
  28. Coil Packs
  29. Rattling catalytic converter on n*
  30. Rear Speed Sensors Disconnected... On Purpose?
  31. N* ring end gap?
  32. 97 deville p420 code
  33. GOT CODES? I DO & IT SUCKS!!
  34. 2000 dhs plugs
  35. cooling fans
  36. Plugs/Wires check! EGR check! Phenolic plates???
  37. mud like residue in surge tank....
  38. seafoam
  39. idle? and mpg?
  40. northstar turbo
  41. '99 STS Temperature Problem ?
  42. No pressure in expansion tank
  43. Spark plug torque N*
  44. what hose do you drain coolant from? top or bottom?
  45. Changing Throttle bodies on my N*? Proceedure!
  46. how much dex cool and distilled water?
  47. 05 STS V8 Oil filter
  48. Best Oil Change Chain?
  49. engine managament/swap in jeep
  50. Forged crankshaft for N*
  51. Need "New" Northstar
  52. LT5 Vs Early Northstar
  53. 96 SLS Electrical Problems?
  54. Headgaskets?
  55. Twin Turbo or Supercharged...
  56. Mobil 5000, Conventional Oil?
  57. How to pull this out ?
  58. Oil leak!
  59. Rebuild bearings
  60. Engine Surge/Hesitate
  61. 2000 STS Spark Plug Thread Repair
  62. Hey BBOB (and others), was the LT1 ever considered
  63. oil change for 2001 cadi deville
  64. Phenolic Spacer Plates
  65. Cranks 5-10 seconds now, what's up?
  66. 96 STS N* squeaky pulley!?!?
  67. Spark Plug Question
  68. Fuel Pressure Check...
  69. Water Pump Tool?
  70. http://www.dragtimes.com/
  71. 99 STS - Blown Head Gaskets
  72. throttle body and egr tubes
  73. 99 Concourse, just going to buy then clonk
  74. Any Temp Seal For Head gaskets??
  75. Wow, this stinks
  76. Oxygen Sensor
  77. my engine on my 98....
  78. What could the problem be????
  79. OBD Codes
  80. Northstar Exhaust acoustic "tuning", Bbobinsky?
  81. '94 Deville n* h2O pipes behind engine rusted out
  82. Map sensor
  83. Help with codes for the Concourse
  84. problems with 94 deville 4.6L
  85. Which Fuel Pressure Regulator?
  86. New Application for the N*
  87. Engine miss
  88. Northstar engine miss
  89. 97 Deville Running poorly Help.
  90. EGR stuck = retarded timing?
  91. What is an MAF, and where can I find it?
  92. Spark Plugs on 94 STS.
  93. WOT, Premium Gas and Service Engine Soon Message
  94. Re: Didn't know where else to post this...
  95. Acetone and the Northstar
  96. whats with the front valve cover???
  97. Theory for Bbob: Fuel grade AGAIN ;)
  98. Need an Honest Opinion on my STS
  99. Plugs and Wires
  100. Missfire sensor
  101. Not head GASKET!
  102. 94 deville intake cover
  103. DIC controlls
  104. superchip
  105. Help my Cadillac Starts by itself
  106. Whats up with this "turbonoter"?
  107. Are there certain northstar engines to stay away from?
  108. 98 Eldo N* Cooling Issues..Now This?
  109. Bad injectors at 50K miles?
  110. Coolant supplement paradox (yeah this again :-)
  111. 95 sts mods
  112. Lifting Fuel Rail
  113. Engine miss when HOT outside.
  114. New Concours owner has PF61 question
  115. Catalytic converter
  116. Need help with O2 sensor.
  117. Just for laughs.....
  118. 94 N* motor pulled tips and ideas
  119. Hesitation
  120. too much money to replace a oil pan gasket
  121. Code PC0138 96 Deville? O2 sensor which one?
  122. Radiator hose looks warped and rubbing against engine...
  123. Transmission Fluid Under Pressure at Cap?
  124. Pcv Valve
  125. 2000 DeVille Waterpump
  126. Oil leak?..Not oil pan!
  127. Time-Serts for 96 N* Eldorado
  128. Rebuidling Heads on 96 Eldorado N* Engine
  129. Rebuilding Heads for 96 Eldorado
  130. MAP Problem?
  131. ECM/PCM Tuning
  132. New Northstar Motor Breakin ??
  133. Never fill up on gas when...
  134. Another overheat thread: '97 Deville N*
  135. Tune Up
  136. Northstar Timing Chains
  137. Do you have a Time-Sert kit, please help ?
  138. blown head or water pump
  139. 1996 Deville Won't Shift Stays in One gear Need Help Serious Techs
  140. Can a Water Pump Be Bad Without Leaking Or Making Noise?
  141. loose power steering rack
  142. Y / 9 What's the Difference?
  143. Blown head gasket repair? 96 deville
  144. 99 STS Starting hard, STALLING..Help!!
  145. Venting Cooling System?? Drill Hole??
  146. COP - Coil over Plug Question
  147. intake plenum bolt
  148. *98 Deville- Coolant in Oil?
  149. Code P076 on 94 STS and hard shifting help!
  150. 96 deville poping and rough running
  151. Tune Up on North*???
  152. Oil misinformation
  153. Just ordered used engine
  154. Honestly, how much interest in S/C or T/C the N*
  155. Cooling fan "on" temp?
  156. Nitrous?
  157. PCV Rattle
  158. Occasional tranny slippage: Shift solenoid???
  159. 93 eldorado northstar stalls out plz help!
  160. Racing Junk heads
  161. My Caddy won't start.....help!!
  162. Northstar TIME-SERT Kit for Sale.....
  163. 1st Self Work on 1994 STS
  164. How many miles can I drive my 1996? Problems will be?
  165. Engine died & no codes?
  166. Plumbing help on 99 STS
  167. WOT vs 4T80E vs. Timing Chain
  168. Exhaust Vids
  169. 99 STS Starting hard then STALLING..Help!!
  170. How did this happen?
  171. overheats sometimes
  172. Heat / AC cover ?
  173. ignition switch
  174. 94 Concours prob. after EGR cleaning P036
  175. 98 STS Motor mount busted
  176. Help with 98 STS part.
  177. Summit Turbo Mufflers?
  178. advice on correct coolant temps for 92 eldorado
  179. Is your N* running bad, hesitating, missing??
  180. Head gasket replacement
  181. Can DIC messages be cleared for good??
  182. Code I039??
  183. blown head gasket
  184. Strange rhythmic vibration 2000 DTS
  185. Electronic Speedometer Display
  186. Blue Devil Engine & Cooling system Sealer!?
  187. Major problems at 80K miles. Is this normal?
  188. Buzzing and ringing...
  189. Performance mod
  190. "flapper door" replacement?
  191. OBDII Programmers
  192. Limp Home what is it??
  193. 99 N doesnt come with factory strut tower bar?
  194. Before And After....(Mufflers)
  195. witch fuse?
  196. Coolant Change 98 Deville
  197. 96 Sedan Deville-Where is the thermostat located
  198. Engine Codes PC0300 & RF2560
  199. Hotrod with the N*
  200. Engine Swap Info
  201. chugging N*
  202. OK, tired of Headgasket worry...
  203. 96 SLS burning oil like it's gas
  204. Remove the water pump pulley
  205. Tool to remove the water pump pulley
  206. 95 Deville Oil Presure
  207. engine died
  208. Tune Up Time!
  209. 97eldo Need Help
  210. missing bolts on side of oilpan and A-frame...
  211. Torque strut removal and "engine tilt"
  212. Thread inserts?
  213. Can you use 10W-40 in a Northstar
  214. Are AC/Delco parts available only at the dealer?
  215. '98 Deville Rough Idle, Shaking, Stuttering Under Acceleration
  216. How do you properly use pellets? Northstar
  217. Engine seems to misfire a bit when it's cold or damp out
  218. coolant coming out of overflow hose like faucet '97 Eldo
  219. SES Misfiring DTC P0300 My hunch is.....
  220. Oil cooler line leak, 4.6 N*
  221. Tightening time saver and accuracy improved with simple trick
  222. It Happened,the dreaded overheat!
  223. Oil pump - what is the grove and the port for
  224. Any performance parts for the N*?
  225. Intermediate timeing chain shaft - O ring?
  226. 98 Eldo N* 4.6 Overheating
  227. ZEX ordered....
  228. Latest head bolt tightening spec?
  229. Corsa scrwwed me over!
  230. Help with emissions system
  231. Supercharged Northstar
  232. Bbob?? Could you look at this Link?
  233. My water pump belt is dancing around...
  234. Belt Tensioner Condition - Bboby?
  235. Northstar Timing Chain Re-Install & Head Gasket Re-install Feedback........
  236. '98 deville idle
  237. intake kit
  238. WOT advice
  239. SeaFoam Opinions...
  240. GXP-ify my sts?
  241. caprice vs Seville sts
  242. water pump/thermostat crossover housing leaking again
  243. Oil in spark plug chamber, How Bad Is This?
  244. Bizarre Coolant- A/C problem 98 Deville!!!
  245. Anybody got a stock calpack?
  246. Question about climate control.
  247. Remanufactured Northstar Engine
  248. 98 eldo jerking while stopped
  249. Dex Cool.....What going on?
  250. Compression test results 98 Seville