: Northstar Engines and System Technical Discussion



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  1. 97 n* rough idle
  2. Cylinder pressure test unsuccessful-missing something?
  3. O2 Sensors for 97 STS
  4. temp for n*
  5. Drumming up support...
  6. mechanic recommends oil additive
  7. How to turn engine to TDC w/ plugs out
  8. 1994 Concours exhaust diameter
  9. misfires @ idle & WOT, no codes
  10. Why Does My Engine Shift very Hard when hot? (No Codes)
  11. Raring to go
  12. NorthStar Oil leak
  13. How to air pressure test cylinder?
  14. 4t80e no codes, limp mode
  15. Where can i find a cheap N*
  16. Sounds that a N* engine bay should make
  17. Slight Fuel smell on startup.
  18. Need TSB 3179 and info on Service PROM
  19. intermittent chirping under the hood, at poweroff...
  20. N* Headbolt Torque Protocol
  21. life of Northstar?
  22. plug the plug or leave it open
  23. WTF Belt tensionner squeel?!?
  24. I Have a Question about my transmission fluid?
  25. Flush/Drain Coolant
  26. Cooling/overheating issue
  27. Code p1189 ????
  28. 97' DeVille Northstar overheating
  29. So, how did N* ended up in a Cadillac's engine bay?
  30. My Exhaust sound...Listen!
  31. Whos idea was it to mount the N* sideways?
  32. 97 deville trouble code help me
  33. Digital MPG read outs
  34. exhaust volume
  35. '01 STS Piston and Ring Replacement
  36. This is a long-shot, just maybe...
  37. A/C issue!!!! again
  38. Turbonator, Tornado????
  39. 96 Deville T.b. And Egr Cleaning
  40. If anyone is interested in buying an Engine
  41. Catalyst melted. Why?
  42. random spring & washer after oil change.
  43. 96 Concours Northstar W/PC0240 Code
  44. New Cluster - Help
  45. Northstar Transplant?
  46. 360 HP reman N*....BBob what's your take?
  47. Gasket blown - other work while there?
  48. Northstar threw a rod, hole in lower block. Rebuildable?
  49. Help
  50. Northstar drinking coolant - need advice
  51. Blown NorthStar
  52. Remove N* eng from top or Pwrtrn out Btm?
  53. car stalls at light ?
  54. So what's wrong with FWD?
  55. Performace Module???
  56. Thud, Clunk, Bang When shifting from Drive to Reverse or From Reverse to Drive
  57. Cam Position Sensor
  58. Dammm
  59. O2 sensor Question - bboby?
  60. 98 northstar cooling system
  61. 94 Sts A/c Problems Need Help
  62. 97 Deville. P0131 - what does this tell the computere
  63. Kicking coolant out the overflow hose on the surge tank
  64. No coolant supplement pellets available here.
  65. pan seal ??????
  66. Case 1/2 seal Question
  67. 94 Concours Need Help Big Time
  68. 97 Aurora with Northstar engine..Head gasket problem!
  69. transient powertrain "slack" when engaging??
  70. road trip spec's
  71. SELLING my Cadillac Deville DTS ------
  72. new head gasket sealant and bolt sealant
  73. CHANGE OIL message after new WATER PUMP installed
  74. would WOT's get rid of this code?
  75. Midthrottle surge...
  76. schematics 95 SLS water pump
  77. Dead Eldorado
  78. question about mixing of octane at the pump
  79. Using 20w50 oil in N* 99STS
  80. Need help quick - 2000 vs 99 injectors
  81. the STS almost doesnt start...any ideas?
  82. P0171 - P0174
  83. Doing First Tune Up
  84. Transmission service at the dealer?
  85. best choice?
  86. CAT = good and ?
  87. 4 cylinder Northstar - 97 DeVille
  88. RWD N* Project update
  89. 97 STS Cranks but doesn't start - error codes
  90. small tweaks that help or not?
  91. Running ragged p0300....
  92. 97 Deville - Sensor trouble, Running poor
  93. bad dealer
  94. No pressure on hoses
  95. Test for cam position sensors 98+?
  96. stuck at this part
  97. 96 SLS sometimes hard to start
  98. low (or no) oil pressure
  99. 94 Seville not starting
  100. drag strip times
  101. Coil Packs
  102. Rattling catalytic converter on n*
  103. Rear Speed Sensors Disconnected... On Purpose?
  104. N* ring end gap?
  105. 97 deville p420 code
  106. GOT CODES? I DO & IT SUCKS!!
  107. 2000 dhs plugs
  108. cooling fans
  109. Plugs/Wires check! EGR check! Phenolic plates???
  110. mud like residue in surge tank....
  111. seafoam
  112. idle? and mpg?
  113. northstar turbo
  114. '99 STS Temperature Problem ?
  115. No pressure in expansion tank
  116. Spark plug torque N*
  117. what hose do you drain coolant from? top or bottom?
  118. Changing Throttle bodies on my N*? Proceedure!
  119. how much dex cool and distilled water?
  120. 05 STS V8 Oil filter
  121. Best Oil Change Chain?
  122. engine managament/swap in jeep
  123. Forged crankshaft for N*
  124. Need "New" Northstar
  125. LT5 Vs Early Northstar
  126. 96 SLS Electrical Problems?
  127. Headgaskets?
  128. Twin Turbo or Supercharged...
  129. Mobil 5000, Conventional Oil?
  130. How to pull this out ?
  131. Oil leak!
  132. Rebuild bearings
  133. Engine Surge/Hesitate
  134. 2000 STS Spark Plug Thread Repair
  135. Hey BBOB (and others), was the LT1 ever considered
  136. oil change for 2001 cadi deville
  137. Phenolic Spacer Plates
  138. Cranks 5-10 seconds now, what's up?
  139. 96 STS N* squeaky pulley!?!?
  140. Spark Plug Question
  141. Fuel Pressure Check...
  142. Water Pump Tool?
  143. http://www.dragtimes.com/
  144. 99 STS - Blown Head Gaskets
  145. throttle body and egr tubes
  146. 99 Concourse, just going to buy then clonk
  147. Any Temp Seal For Head gaskets??
  148. Wow, this stinks
  149. Oxygen Sensor
  150. my engine on my 98....
  151. What could the problem be????
  152. OBD Codes
  153. Northstar Exhaust acoustic "tuning", Bbobinsky?
  154. '94 Deville n* h2O pipes behind engine rusted out
  155. Map sensor
  156. Help with codes for the Concourse
  157. problems with 94 deville 4.6L
  158. Which Fuel Pressure Regulator?
  159. New Application for the N*
  160. Engine miss
  161. Northstar engine miss
  162. 97 Deville Running poorly Help.
  163. EGR stuck = retarded timing?
  164. What is an MAF, and where can I find it?
  165. Spark Plugs on 94 STS.
  166. WOT, Premium Gas and Service Engine Soon Message
  167. Re: Didn't know where else to post this...
  168. Acetone and the Northstar
  169. whats with the front valve cover???
  170. Theory for Bbob: Fuel grade AGAIN ;)
  171. Need an Honest Opinion on my STS
  172. Plugs and Wires
  173. Missfire sensor
  174. Not head GASKET!
  175. 94 deville intake cover
  176. DIC controlls
  177. superchip
  178. Help my Cadillac Starts by itself
  179. Whats up with this "turbonoter"?
  180. Are there certain northstar engines to stay away from?
  181. 98 Eldo N* Cooling Issues..Now This?
  182. Bad injectors at 50K miles?
  183. Coolant supplement paradox (yeah this again :-)
  184. 95 sts mods
  185. Lifting Fuel Rail
  186. Engine miss when HOT outside.
  187. New Concours owner has PF61 question
  188. Catalytic converter
  189. Need help with O2 sensor.
  190. Just for laughs.....
  191. 94 N* motor pulled tips and ideas
  192. Hesitation
  193. too much money to replace a oil pan gasket
  194. Code PC0138 96 Deville? O2 sensor which one?
  195. Radiator hose looks warped and rubbing against engine...
  196. Transmission Fluid Under Pressure at Cap?
  197. Pcv Valve
  198. 2000 DeVille Waterpump
  199. Oil leak?..Not oil pan!
  200. Time-Serts for 96 N* Eldorado
  201. Rebuidling Heads on 96 Eldorado N* Engine
  202. Rebuilding Heads for 96 Eldorado
  203. MAP Problem?
  204. ECM/PCM Tuning
  205. New Northstar Motor Breakin ??
  206. Never fill up on gas when...
  207. Another overheat thread: '97 Deville N*
  208. Tune Up
  209. Northstar Timing Chains
  210. Do you have a Time-Sert kit, please help ?
  211. blown head or water pump
  212. 1996 Deville Won't Shift Stays in One gear Need Help Serious Techs
  213. Can a Water Pump Be Bad Without Leaking Or Making Noise?
  214. loose power steering rack
  215. Y / 9 What's the Difference?
  216. Blown head gasket repair? 96 deville
  217. 99 STS Starting hard, STALLING..Help!!
  218. Venting Cooling System?? Drill Hole??
  219. COP - Coil over Plug Question
  220. intake plenum bolt
  221. *98 Deville- Coolant in Oil?
  222. Code P076 on 94 STS and hard shifting help!
  223. 96 deville poping and rough running
  224. Tune Up on North*???
  225. Oil misinformation
  226. Just ordered used engine
  227. Honestly, how much interest in S/C or T/C the N*
  228. Cooling fan "on" temp?
  229. Nitrous?
  230. PCV Rattle
  231. Occasional tranny slippage: Shift solenoid???
  232. 93 eldorado northstar stalls out plz help!
  233. Racing Junk heads
  234. My Caddy won't start.....help!!
  235. Northstar TIME-SERT Kit for Sale.....
  236. 1st Self Work on 1994 STS
  237. How many miles can I drive my 1996? Problems will be?
  238. Engine died & no codes?
  239. Plumbing help on 99 STS
  240. WOT vs 4T80E vs. Timing Chain
  241. Exhaust Vids
  242. 99 STS Starting hard then STALLING..Help!!
  243. How did this happen?
  244. overheats sometimes
  245. Heat / AC cover ?
  246. ignition switch
  247. 94 Concours prob. after EGR cleaning P036
  248. 98 STS Motor mount busted
  249. Help with 98 STS part.
  250. Summit Turbo Mufflers?