: Northstar Engines and System Technical Discussion



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  1. Help Needed - 95 SLS Stalls then won't idle or Revs Like Crazy! Lots of codes!
  2. Code Question for a 2000 deville north*.
  3. Can I swap an 02 N*into my 98 STS?
  4. Sorry Caddy Dudes!
  5. 97 N* low oil pressure light flickering
  6. 1996 Northstar Excess Fuel Consumption
  7. 94 SLS questions
  8. Northstar Swap question
  9. Can someone tell me what these codes mean?
  10. p076 presure solenoid problem
  11. northstar oil consumtion
  12. Compass reads incorrect sometimes?
  13. "Normal" Northstar Coolant Operating Temp?
  14. 1999 Deville trouble codes
  15. 97 STS Code Info U1027
  16. supercharger for the Northstar
  17. Radiator leak...how much $$$?
  18. '94 SLS Head bolt Torque value?
  19. stalling
  20. 4T80E shift algorhythm logic -- what are the facts?
  21. Oil Leak
  22. Overfill oil in northstar, keep reading bad stuff
  23. Changed starter, now very hard start, run, white smoke.
  24. '94 STS rattle
  25. '94 SLS smoking bad
  26. Bad idle and deacceleration
  27. '94 DeVille Concours North*
  28. Factory air intake box question
  29. Stop Engine Low Oil Presssure
  30. Northstar losing oil
  31. Pcm Gone Loco?
  32. Concours '94 Problem
  33. P 025 code - 1995 STS
  34. Headgasket/temperatute swings
  35. Help with ACM codes please.
  36. Can a headgasket happen even with frequent coolant changes & if it never overheated?
  37. Exhaust manifold on N* 4.6
  38. Ect???
  39. 95 SLS Ruff Start (metal on metal)
  40. Gas Pedal Tapping When Engine Shut's Off
  41. 1995 Eldorado Northstar Engine Skips
  42. 99SLS Ruff idle when started
  43. 94 sts spark Plugs
  44. Shift Solenoid Problem help!!!!
  45. Would Magnaflows help MPG?
  46. Intake manifold gasket replacement...special tool?
  47. Factory Service Manual
  48. Oil change at 3K or when oil life=10%?
  49. blown head gasket
  50. Oil Life Monitor
  51. 95 NS chip burner
  52. If anyone needs a N* Deville & Protection
  53. Northstar overheating!
  54. 94 Seville STS service
  55. N* Headbolt Torque
  56. Quick code help please
  57. 97 n* rough idle
  58. Cylinder pressure test unsuccessful-missing something?
  59. O2 Sensors for 97 STS
  60. temp for n*
  61. Drumming up support...
  62. mechanic recommends oil additive
  63. How to turn engine to TDC w/ plugs out
  64. 1994 Concours exhaust diameter
  65. misfires @ idle & WOT, no codes
  66. Why Does My Engine Shift very Hard when hot? (No Codes)
  67. Raring to go
  68. NorthStar Oil leak
  69. How to air pressure test cylinder?
  70. 4t80e no codes, limp mode
  71. Where can i find a cheap N*
  72. Sounds that a N* engine bay should make
  73. Slight Fuel smell on startup.
  74. Need TSB 3179 and info on Service PROM
  75. intermittent chirping under the hood, at poweroff...
  76. N* Headbolt Torque Protocol
  77. life of Northstar?
  78. plug the plug or leave it open
  79. WTF Belt tensionner squeel?!?
  80. I Have a Question about my transmission fluid?
  81. Flush/Drain Coolant
  82. Cooling/overheating issue
  83. Code p1189 ????
  84. 97' DeVille Northstar overheating
  85. So, how did N* ended up in a Cadillac's engine bay?
  86. My Exhaust sound...Listen!
  87. Whos idea was it to mount the N* sideways?
  88. 97 deville trouble code help me
  89. Digital MPG read outs
  90. exhaust volume
  91. '01 STS Piston and Ring Replacement
  92. This is a long-shot, just maybe...
  93. A/C issue!!!! again
  94. Turbonator, Tornado????
  95. 96 Deville T.b. And Egr Cleaning
  96. If anyone is interested in buying an Engine
  97. Catalyst melted. Why?
  98. random spring & washer after oil change.
  99. 96 Concours Northstar W/PC0240 Code
  100. New Cluster - Help
  101. Northstar Transplant?
  102. 360 HP reman N*....BBob what's your take?
  103. Gasket blown - other work while there?
  104. Northstar threw a rod, hole in lower block. Rebuildable?
  105. Help
  106. Northstar drinking coolant - need advice
  107. Blown NorthStar
  108. Remove N* eng from top or Pwrtrn out Btm?
  109. car stalls at light ?
  110. So what's wrong with FWD?
  111. Performace Module???
  112. Thud, Clunk, Bang When shifting from Drive to Reverse or From Reverse to Drive
  113. Cam Position Sensor
  114. Dammm
  115. O2 sensor Question - bboby?
  116. 98 northstar cooling system
  117. 94 Sts A/c Problems Need Help
  118. 97 Deville. P0131 - what does this tell the computere
  119. Kicking coolant out the overflow hose on the surge tank
  120. No coolant supplement pellets available here.
  121. pan seal ??????
  122. Case 1/2 seal Question
  123. 94 Concours Need Help Big Time
  124. 97 Aurora with Northstar engine..Head gasket problem!
  125. transient powertrain "slack" when engaging??
  126. road trip spec's
  127. SELLING my Cadillac Deville DTS ------
  128. new head gasket sealant and bolt sealant
  129. CHANGE OIL message after new WATER PUMP installed
  130. would WOT's get rid of this code?
  131. Midthrottle surge...
  132. schematics 95 SLS water pump
  133. Dead Eldorado
  134. question about mixing of octane at the pump
  135. Using 20w50 oil in N* 99STS
  136. Need help quick - 2000 vs 99 injectors
  137. the STS almost doesnt start...any ideas?
  138. P0171 - P0174
  139. Doing First Tune Up
  140. Transmission service at the dealer?
  141. best choice?
  142. CAT = good and ?
  143. 4 cylinder Northstar - 97 DeVille
  144. RWD N* Project update
  145. 97 STS Cranks but doesn't start - error codes
  146. small tweaks that help or not?
  147. Running ragged p0300....
  148. 97 Deville - Sensor trouble, Running poor
  149. bad dealer
  150. No pressure on hoses
  151. Test for cam position sensors 98+?
  152. stuck at this part
  153. 96 SLS sometimes hard to start
  154. low (or no) oil pressure
  155. 94 Seville not starting
  156. drag strip times
  157. Coil Packs
  158. Rattling catalytic converter on n*
  159. Rear Speed Sensors Disconnected... On Purpose?
  160. N* ring end gap?
  161. 97 deville p420 code
  162. GOT CODES? I DO & IT SUCKS!!
  163. 2000 dhs plugs
  164. cooling fans
  165. Plugs/Wires check! EGR check! Phenolic plates???
  166. mud like residue in surge tank....
  167. seafoam
  168. idle? and mpg?
  169. northstar turbo
  170. '99 STS Temperature Problem ?
  171. No pressure in expansion tank
  172. Spark plug torque N*
  173. what hose do you drain coolant from? top or bottom?
  174. Changing Throttle bodies on my N*? Proceedure!
  175. how much dex cool and distilled water?
  176. 05 STS V8 Oil filter
  177. Best Oil Change Chain?
  178. engine managament/swap in jeep
  179. Forged crankshaft for N*
  180. Need "New" Northstar
  181. LT5 Vs Early Northstar
  182. 96 SLS Electrical Problems?
  183. Headgaskets?
  184. Twin Turbo or Supercharged...
  185. Mobil 5000, Conventional Oil?
  186. How to pull this out ?
  187. Oil leak!
  188. Rebuild bearings
  189. Engine Surge/Hesitate
  190. 2000 STS Spark Plug Thread Repair
  191. Hey BBOB (and others), was the LT1 ever considered
  192. oil change for 2001 cadi deville
  193. Phenolic Spacer Plates
  194. Cranks 5-10 seconds now, what's up?
  195. 96 STS N* squeaky pulley!?!?
  196. Spark Plug Question
  197. Fuel Pressure Check...
  198. Water Pump Tool?
  199. http://www.dragtimes.com/
  200. 99 STS - Blown Head Gaskets
  201. throttle body and egr tubes
  202. 99 Concourse, just going to buy then clonk
  203. Any Temp Seal For Head gaskets??
  204. Wow, this stinks
  205. Oxygen Sensor
  206. my engine on my 98....
  207. What could the problem be????
  208. OBD Codes
  209. Northstar Exhaust acoustic "tuning", Bbobinsky?
  210. '94 Deville n* h2O pipes behind engine rusted out
  211. Map sensor
  212. Help with codes for the Concourse
  213. problems with 94 deville 4.6L
  214. Which Fuel Pressure Regulator?
  215. New Application for the N*
  216. Engine miss
  217. Northstar engine miss
  218. 97 Deville Running poorly Help.
  219. EGR stuck = retarded timing?
  220. What is an MAF, and where can I find it?
  221. Spark Plugs on 94 STS.
  222. WOT, Premium Gas and Service Engine Soon Message
  223. Re: Didn't know where else to post this...
  224. Acetone and the Northstar
  225. whats with the front valve cover???
  226. Theory for Bbob: Fuel grade AGAIN ;)
  227. Need an Honest Opinion on my STS
  228. Plugs and Wires
  229. Missfire sensor
  230. Not head GASKET!
  231. 94 deville intake cover
  232. DIC controlls
  233. superchip
  234. Help my Cadillac Starts by itself
  235. Whats up with this "turbonoter"?
  236. Are there certain northstar engines to stay away from?
  237. 98 Eldo N* Cooling Issues..Now This?
  238. Bad injectors at 50K miles?
  239. Coolant supplement paradox (yeah this again :-)
  240. 95 sts mods
  241. Lifting Fuel Rail
  242. Engine miss when HOT outside.
  243. New Concours owner has PF61 question
  244. Catalytic converter
  245. Need help with O2 sensor.
  246. Just for laughs.....
  247. 94 N* motor pulled tips and ideas
  248. Hesitation
  249. too much money to replace a oil pan gasket
  250. Code PC0138 96 Deville? O2 sensor which one?