: Northstar Engines and System Technical Discussion



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