: Northstar Engines and System Technical Discussion



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