: Northstar Engines and System Technical Discussion



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  1. 94 sts spark Plugs
  2. Shift Solenoid Problem help!!!!
  3. Would Magnaflows help MPG?
  4. Intake manifold gasket replacement...special tool?
  5. Factory Service Manual
  6. Oil change at 3K or when oil life=10%?
  7. blown head gasket
  8. Oil Life Monitor
  9. 95 NS chip burner
  10. If anyone needs a N* Deville & Protection
  11. Northstar overheating!
  12. 94 Seville STS service
  13. N* Headbolt Torque
  14. Quick code help please
  15. 97 n* rough idle
  16. Cylinder pressure test unsuccessful-missing something?
  17. O2 Sensors for 97 STS
  18. temp for n*
  19. Drumming up support...
  20. mechanic recommends oil additive
  21. How to turn engine to TDC w/ plugs out
  22. 1994 Concours exhaust diameter
  23. misfires @ idle & WOT, no codes
  24. Why Does My Engine Shift very Hard when hot? (No Codes)
  25. Raring to go
  26. NorthStar Oil leak
  27. How to air pressure test cylinder?
  28. 4t80e no codes, limp mode
  29. Where can i find a cheap N*
  30. Sounds that a N* engine bay should make
  31. Slight Fuel smell on startup.
  32. Need TSB 3179 and info on Service PROM
  33. intermittent chirping under the hood, at poweroff...
  34. N* Headbolt Torque Protocol
  35. life of Northstar?
  36. plug the plug or leave it open
  37. WTF Belt tensionner squeel?!?
  38. I Have a Question about my transmission fluid?
  39. Flush/Drain Coolant
  40. Cooling/overheating issue
  41. Code p1189 ????
  42. 97' DeVille Northstar overheating
  43. So, how did N* ended up in a Cadillac's engine bay?
  44. My Exhaust sound...Listen!
  45. Whos idea was it to mount the N* sideways?
  46. 97 deville trouble code help me
  47. Digital MPG read outs
  48. exhaust volume
  49. '01 STS Piston and Ring Replacement
  50. This is a long-shot, just maybe...
  51. A/C issue!!!! again
  52. Turbonator, Tornado????
  53. 96 Deville T.b. And Egr Cleaning
  54. If anyone is interested in buying an Engine
  55. Catalyst melted. Why?
  56. random spring & washer after oil change.
  57. 96 Concours Northstar W/PC0240 Code
  58. New Cluster - Help
  59. Northstar Transplant?
  60. 360 HP reman N*....BBob what's your take?
  61. Gasket blown - other work while there?
  62. Northstar threw a rod, hole in lower block. Rebuildable?
  63. Help
  64. Northstar drinking coolant - need advice
  65. Blown NorthStar
  66. Remove N* eng from top or Pwrtrn out Btm?
  67. car stalls at light ?
  68. So what's wrong with FWD?
  69. Performace Module???
  70. Thud, Clunk, Bang When shifting from Drive to Reverse or From Reverse to Drive
  71. Cam Position Sensor
  72. Dammm
  73. O2 sensor Question - bboby?
  74. 98 northstar cooling system
  75. 94 Sts A/c Problems Need Help
  76. 97 Deville. P0131 - what does this tell the computere
  77. Kicking coolant out the overflow hose on the surge tank
  78. No coolant supplement pellets available here.
  79. pan seal ??????
  80. Case 1/2 seal Question
  81. 94 Concours Need Help Big Time
  82. 97 Aurora with Northstar engine..Head gasket problem!
  83. transient powertrain "slack" when engaging??
  84. road trip spec's
  85. SELLING my Cadillac Deville DTS ------
  86. new head gasket sealant and bolt sealant
  87. CHANGE OIL message after new WATER PUMP installed
  88. would WOT's get rid of this code?
  89. Midthrottle surge...
  90. schematics 95 SLS water pump
  91. Dead Eldorado
  92. question about mixing of octane at the pump
  93. Using 20w50 oil in N* 99STS
  94. Need help quick - 2000 vs 99 injectors
  95. the STS almost doesnt start...any ideas?
  96. P0171 - P0174
  97. Doing First Tune Up
  98. Transmission service at the dealer?
  99. best choice?
  100. CAT = good and ?
  101. 4 cylinder Northstar - 97 DeVille
  102. RWD N* Project update
  103. 97 STS Cranks but doesn't start - error codes
  104. small tweaks that help or not?
  105. Running ragged p0300....
  106. 97 Deville - Sensor trouble, Running poor
  107. bad dealer
  108. No pressure on hoses
  109. Test for cam position sensors 98+?
  110. stuck at this part
  111. 96 SLS sometimes hard to start
  112. low (or no) oil pressure
  113. 94 Seville not starting
  114. drag strip times
  115. Coil Packs
  116. Rattling catalytic converter on n*
  117. Rear Speed Sensors Disconnected... On Purpose?
  118. N* ring end gap?
  119. 97 deville p420 code
  120. GOT CODES? I DO & IT SUCKS!!
  121. 2000 dhs plugs
  122. cooling fans
  123. Plugs/Wires check! EGR check! Phenolic plates???
  124. mud like residue in surge tank....
  125. seafoam
  126. idle? and mpg?
  127. northstar turbo
  128. '99 STS Temperature Problem ?
  129. No pressure in expansion tank
  130. Spark plug torque N*
  131. what hose do you drain coolant from? top or bottom?
  132. Changing Throttle bodies on my N*? Proceedure!
  133. how much dex cool and distilled water?
  134. 05 STS V8 Oil filter
  135. Best Oil Change Chain?
  136. engine managament/swap in jeep
  137. Forged crankshaft for N*
  138. Need "New" Northstar
  139. LT5 Vs Early Northstar
  140. 96 SLS Electrical Problems?
  141. Headgaskets?
  142. Twin Turbo or Supercharged...
  143. Mobil 5000, Conventional Oil?
  144. How to pull this out ?
  145. Oil leak!
  146. Rebuild bearings
  147. Engine Surge/Hesitate
  148. 2000 STS Spark Plug Thread Repair
  149. Hey BBOB (and others), was the LT1 ever considered
  150. oil change for 2001 cadi deville
  151. Phenolic Spacer Plates
  152. Cranks 5-10 seconds now, what's up?
  153. 96 STS N* squeaky pulley!?!?
  154. Spark Plug Question
  155. Fuel Pressure Check...
  156. Water Pump Tool?
  157. http://www.dragtimes.com/
  158. 99 STS - Blown Head Gaskets
  159. throttle body and egr tubes
  160. 99 Concourse, just going to buy then clonk
  161. Any Temp Seal For Head gaskets??
  162. Wow, this stinks
  163. Oxygen Sensor
  164. my engine on my 98....
  165. What could the problem be????
  166. OBD Codes
  167. Northstar Exhaust acoustic "tuning", Bbobinsky?
  168. '94 Deville n* h2O pipes behind engine rusted out
  169. Map sensor
  170. Help with codes for the Concourse
  171. problems with 94 deville 4.6L
  172. Which Fuel Pressure Regulator?
  173. New Application for the N*
  174. Engine miss
  175. Northstar engine miss
  176. 97 Deville Running poorly Help.
  177. EGR stuck = retarded timing?
  178. What is an MAF, and where can I find it?
  179. Spark Plugs on 94 STS.
  180. WOT, Premium Gas and Service Engine Soon Message
  181. Re: Didn't know where else to post this...
  182. Acetone and the Northstar
  183. whats with the front valve cover???
  184. Theory for Bbob: Fuel grade AGAIN ;)
  185. Need an Honest Opinion on my STS
  186. Plugs and Wires
  187. Missfire sensor
  188. Not head GASKET!
  189. 94 deville intake cover
  190. DIC controlls
  191. superchip
  192. Help my Cadillac Starts by itself
  193. Whats up with this "turbonoter"?
  194. Are there certain northstar engines to stay away from?
  195. 98 Eldo N* Cooling Issues..Now This?
  196. Bad injectors at 50K miles?
  197. Coolant supplement paradox (yeah this again :-)
  198. 95 sts mods
  199. Lifting Fuel Rail
  200. Engine miss when HOT outside.
  201. New Concours owner has PF61 question
  202. Catalytic converter
  203. Need help with O2 sensor.
  204. Just for laughs.....
  205. 94 N* motor pulled tips and ideas
  206. Hesitation
  207. too much money to replace a oil pan gasket
  208. Code PC0138 96 Deville? O2 sensor which one?
  209. Radiator hose looks warped and rubbing against engine...
  210. Transmission Fluid Under Pressure at Cap?
  211. Pcv Valve
  212. 2000 DeVille Waterpump
  213. Oil leak?..Not oil pan!
  214. Time-Serts for 96 N* Eldorado
  215. Rebuidling Heads on 96 Eldorado N* Engine
  216. Rebuilding Heads for 96 Eldorado
  217. MAP Problem?
  218. ECM/PCM Tuning
  219. New Northstar Motor Breakin ??
  220. Never fill up on gas when...
  221. Another overheat thread: '97 Deville N*
  222. Tune Up
  223. Northstar Timing Chains
  224. Do you have a Time-Sert kit, please help ?
  225. blown head or water pump
  226. 1996 Deville Won't Shift Stays in One gear Need Help Serious Techs
  227. Can a Water Pump Be Bad Without Leaking Or Making Noise?
  228. loose power steering rack
  229. Y / 9 What's the Difference?
  230. Blown head gasket repair? 96 deville
  231. 99 STS Starting hard, STALLING..Help!!
  232. Venting Cooling System?? Drill Hole??
  233. COP - Coil over Plug Question
  234. intake plenum bolt
  235. *98 Deville- Coolant in Oil?
  236. Code P076 on 94 STS and hard shifting help!
  237. 96 deville poping and rough running
  238. Tune Up on North*???
  239. Oil misinformation
  240. Just ordered used engine
  241. Honestly, how much interest in S/C or T/C the N*
  242. Cooling fan "on" temp?
  243. Nitrous?
  244. PCV Rattle
  245. Occasional tranny slippage: Shift solenoid???
  246. 93 eldorado northstar stalls out plz help!
  247. Racing Junk heads
  248. My Caddy won't start.....help!!
  249. Northstar TIME-SERT Kit for Sale.....
  250. 1st Self Work on 1994 STS