: Northstar Engines and System Technical Discussion



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  1. removing northstar engine AC COMPRESSOR question
  2. Intermittant detonation
  3. n*Headgasket Diag. the Hardway
  4. Using 1st, 2nd, 3rd gears in 99' STS
  5. Northstar 1993 Explosion - Urgent Need
  6. having a starting problem on my 94 sls
  7. '95 Northstar into a '94?
  8. NorthStar reliability?
  9. Leaking Coolant, where is it coming from?
  10. Removing the front valve cover on 98 N*???
  11. Low battery voltage causing hard starts ?
  12. new server with past informative posts
  13. Oil Leak Question
  14. service.gm.com username/password
  15. Slipping out of overdrive and P094 code
  16. will 99 n* spark plug wires fit 97 n* ???
  17. Update on my 99' Eldo issues.. and thanks
  18. 97 DeVille Concours low oil pressure stop engine???
  19. sensor names?!?!?!
  20. Cost of rebuilding transmission?
  21. 99 STS Engine Temp Sensor problem
  22. New Owner, 97 Eldo, A Few Thoughts And Questions
  23. what is the conditioner called to add to the radiator coolant??
  24. Toyota MR2 powered by...Northstar
  25. Northstar Twin Turbo...
  26. A helicopter powered by...Northstar engine
  27. A guy with TWO N* engines in his Caddy...The TwinStar
  28. A guy with a turbocharged Northstar powered Fiero...
  29. Found: Northstar Engine Info:
  30. Hi, new here with q on a 99 Eld.
  31. Running Rich?????
  32. Spark Plug Replacement
  33. Cooling System Hoses
  34. 95 STS Crank sensor,location ??? help
  35. engine braking a la overrun clutch
  36. Best Price/ Dealer for Time-serts?
  37. Looking for Northstar Parts!
  38. accuracy of temp sensor???? please help
  39. Oil Seal Tool ?
  40. Help need info.
  41. 94 Caddy Concours Tranny/Linkage?
  42. Need help with '94 STS codes
  43. P022 code TPS open
  44. where can i buy rear control arm bushings?
  45. Replacing Timeserts in 96 Eldorado
  46. N* hp over the years...
  47. Installing Oil Pressure Gauge???
  48. 97 Deville ran 278 Degrees..any chance i did not blow the heads?"
  49. 97 DeVille Concours still runnin hot
  50. HELP! Need serpentine belt diagram
  51. Vacuum pressure
  52. old engine, bad engine?
  53. 95 Cadillac Seville Northstar 4.6 V8 Swap...
  54. P0609 - help
  55. Shift Solenoids A & B, Need some Help!
  56. What do these codes mean in plain english ?
  57. N* performance help
  58. Northstar stud problem
  59. Noisy Northstar
  60. northstar swap?
  61. Transmission NIGHTMARE
  62. '94 SLS, 4.6L, how do you set the cam alignment?
  63. 1993 Eldo...ALL THE OIL CAME OUT
  64. what engine years will fit my 94 sls?
  65. A question on diagnostic codes
  66. tires for 99 STS??
  67. taking off oil pan?
  68. Update on PCM gone Loco
  69. Overheating: correct diagnostics
  70. N* Power Steering Pump Pressurizing
  71. 95 Northstart Leaking Coolant
  72. What next? PCM shot or something I'm missing? Please help.
  73. Oil Pressure Drop on V8 NS
  74. looking for some new ideas and help with northstar motor
  75. Backfire and smoke under the Hood
  76. Northstar/HotRod/Blower
  77. 1996 ESC 40K, Does Trans-fluid need changing?
  78. Help Needed - 95 SLS Stalls then won't idle or Revs Like Crazy! Lots of codes!
  79. Code Question for a 2000 deville north*.
  80. Can I swap an 02 N*into my 98 STS?
  81. Sorry Caddy Dudes!
  82. 97 N* low oil pressure light flickering
  83. 1996 Northstar Excess Fuel Consumption
  84. 94 SLS questions
  85. Northstar Swap question
  86. Can someone tell me what these codes mean?
  87. p076 presure solenoid problem
  88. northstar oil consumtion
  89. Compass reads incorrect sometimes?
  90. "Normal" Northstar Coolant Operating Temp?
  91. 1999 Deville trouble codes
  92. 97 STS Code Info U1027
  93. supercharger for the Northstar
  94. Radiator leak...how much $$$?
  95. '94 SLS Head bolt Torque value?
  96. stalling
  97. 4T80E shift algorhythm logic -- what are the facts?
  98. Oil Leak
  99. Overfill oil in northstar, keep reading bad stuff
  100. Changed starter, now very hard start, run, white smoke.
  101. '94 STS rattle
  102. '94 SLS smoking bad
  103. Bad idle and deacceleration
  104. '94 DeVille Concours North*
  105. Factory air intake box question
  106. Stop Engine Low Oil Presssure
  107. Northstar losing oil
  108. Pcm Gone Loco?
  109. Concours '94 Problem
  110. P 025 code - 1995 STS
  111. Headgasket/temperatute swings
  112. Help with ACM codes please.
  113. Can a headgasket happen even with frequent coolant changes & if it never overheated?
  114. Exhaust manifold on N* 4.6
  115. Ect???
  116. 95 SLS Ruff Start (metal on metal)
  117. Gas Pedal Tapping When Engine Shut's Off
  118. 1995 Eldorado Northstar Engine Skips
  119. 99SLS Ruff idle when started
  120. 94 sts spark Plugs
  121. Shift Solenoid Problem help!!!!
  122. Would Magnaflows help MPG?
  123. Intake manifold gasket replacement...special tool?
  124. Factory Service Manual
  125. Oil change at 3K or when oil life=10%?
  126. blown head gasket
  127. Oil Life Monitor
  128. 95 NS chip burner
  129. If anyone needs a N* Deville & Protection
  130. Northstar overheating!
  131. 94 Seville STS service
  132. N* Headbolt Torque
  133. Quick code help please
  134. 97 n* rough idle
  135. Cylinder pressure test unsuccessful-missing something?
  136. O2 Sensors for 97 STS
  137. temp for n*
  138. Drumming up support...
  139. mechanic recommends oil additive
  140. How to turn engine to TDC w/ plugs out
  141. 1994 Concours exhaust diameter
  142. misfires @ idle & WOT, no codes
  143. Why Does My Engine Shift very Hard when hot? (No Codes)
  144. Raring to go
  145. NorthStar Oil leak
  146. How to air pressure test cylinder?
  147. 4t80e no codes, limp mode
  148. Where can i find a cheap N*
  149. Sounds that a N* engine bay should make
  150. Slight Fuel smell on startup.
  151. Need TSB 3179 and info on Service PROM
  152. intermittent chirping under the hood, at poweroff...
  153. N* Headbolt Torque Protocol
  154. life of Northstar?
  155. plug the plug or leave it open
  156. WTF Belt tensionner squeel?!?
  157. I Have a Question about my transmission fluid?
  158. Flush/Drain Coolant
  159. Cooling/overheating issue
  160. Code p1189 ????
  161. 97' DeVille Northstar overheating
  162. So, how did N* ended up in a Cadillac's engine bay?
  163. My Exhaust sound...Listen!
  164. Whos idea was it to mount the N* sideways?
  165. 97 deville trouble code help me
  166. Digital MPG read outs
  167. exhaust volume
  168. '01 STS Piston and Ring Replacement
  169. This is a long-shot, just maybe...
  170. A/C issue!!!! again
  171. Turbonator, Tornado????
  172. 96 Deville T.b. And Egr Cleaning
  173. If anyone is interested in buying an Engine
  174. Catalyst melted. Why?
  175. random spring & washer after oil change.
  176. 96 Concours Northstar W/PC0240 Code
  177. New Cluster - Help
  178. Northstar Transplant?
  179. 360 HP reman N*....BBob what's your take?
  180. Gasket blown - other work while there?
  181. Northstar threw a rod, hole in lower block. Rebuildable?
  182. Help
  183. Northstar drinking coolant - need advice
  184. Blown NorthStar
  185. Remove N* eng from top or Pwrtrn out Btm?
  186. car stalls at light ?
  187. So what's wrong with FWD?
  188. Performace Module???
  189. Thud, Clunk, Bang When shifting from Drive to Reverse or From Reverse to Drive
  190. Cam Position Sensor
  191. Dammm
  192. O2 sensor Question - bboby?
  193. 98 northstar cooling system
  194. 94 Sts A/c Problems Need Help
  195. 97 Deville. P0131 - what does this tell the computere
  196. Kicking coolant out the overflow hose on the surge tank
  197. No coolant supplement pellets available here.
  198. pan seal ??????
  199. Case 1/2 seal Question
  200. 94 Concours Need Help Big Time
  201. 97 Aurora with Northstar engine..Head gasket problem!
  202. transient powertrain "slack" when engaging??
  203. road trip spec's
  204. SELLING my Cadillac Deville DTS ------
  205. new head gasket sealant and bolt sealant
  206. CHANGE OIL message after new WATER PUMP installed
  207. would WOT's get rid of this code?
  208. Midthrottle surge...
  209. schematics 95 SLS water pump
  210. Dead Eldorado
  211. question about mixing of octane at the pump
  212. Using 20w50 oil in N* 99STS
  213. Need help quick - 2000 vs 99 injectors
  214. the STS almost doesnt start...any ideas?
  215. P0171 - P0174
  216. Doing First Tune Up
  217. Transmission service at the dealer?
  218. best choice?
  219. CAT = good and ?
  220. 4 cylinder Northstar - 97 DeVille
  221. RWD N* Project update
  222. 97 STS Cranks but doesn't start - error codes
  223. small tweaks that help or not?
  224. Running ragged p0300....
  225. 97 Deville - Sensor trouble, Running poor
  226. bad dealer
  227. No pressure on hoses
  228. Test for cam position sensors 98+?
  229. stuck at this part
  230. 96 SLS sometimes hard to start
  231. low (or no) oil pressure
  232. 94 Seville not starting
  233. drag strip times
  234. Coil Packs
  235. Rattling catalytic converter on n*
  236. Rear Speed Sensors Disconnected... On Purpose?
  237. N* ring end gap?
  238. 97 deville p420 code
  239. GOT CODES? I DO & IT SUCKS!!
  240. 2000 dhs plugs
  241. cooling fans
  242. Plugs/Wires check! EGR check! Phenolic plates???
  243. mud like residue in surge tank....
  244. seafoam
  245. idle? and mpg?
  246. northstar turbo
  247. '99 STS Temperature Problem ?
  248. No pressure in expansion tank
  249. Spark plug torque N*
  250. what hose do you drain coolant from? top or bottom?