View Full Version : Northstar Performance and Technical Discussion


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  1. Slipping out of overdrive and P094 code
  2. will 99 n* spark plug wires fit 97 n* ???
  3. Update on my 99' Eldo issues.. and thanks
  4. 97 DeVille Concours low oil pressure stop engine???
  5. sensor names?!?!?!
  6. Cost of rebuilding transmission?
  7. 99 STS Engine Temp Sensor problem
  8. New Owner, 97 Eldo, A Few Thoughts And Questions
  9. what is the conditioner called to add to the radiator coolant??
  10. Toyota MR2 powered by...Northstar
  11. Northstar Twin Turbo...
  12. A helicopter powered by...Northstar engine
  13. A guy with TWO N* engines in his Caddy...The TwinStar
  14. A guy with a turbocharged Northstar powered Fiero...
  15. Found: Northstar Engine Info:
  16. Hi, new here with q on a 99 Eld.
  17. Running Rich?????
  18. Spark Plug Replacement
  19. Cooling System Hoses
  20. 95 STS Crank sensor,location ??? help
  21. engine braking a la overrun clutch
  22. Best Price/ Dealer for Time-serts?
  23. Looking for Northstar Parts!
  24. accuracy of temp sensor???? please help
  25. Oil Seal Tool ?
  26. Help need info.
  27. 94 Caddy Concours Tranny/Linkage?
  28. Need help with '94 STS codes
  29. P022 code TPS open
  30. where can i buy rear control arm bushings?
  31. Replacing Timeserts in 96 Eldorado
  32. N* hp over the years...
  33. Installing Oil Pressure Gauge???
  34. 97 Deville ran 278 Degrees..any chance i did not blow the heads?"
  35. 97 DeVille Concours still runnin hot
  36. HELP! Need serpentine belt diagram
  37. Vacuum pressure
  38. old engine, bad engine?
  39. 95 Cadillac Seville Northstar 4.6 V8 Swap...
  40. P0609 - help
  41. Shift Solenoids A & B, Need some Help!
  42. What do these codes mean in plain english ?
  43. N* performance help
  44. Northstar stud problem
  45. Noisy Northstar
  46. northstar swap?
  47. Transmission NIGHTMARE
  48. '94 SLS, 4.6L, how do you set the cam alignment?
  49. 1993 Eldo...ALL THE OIL CAME OUT
  50. what engine years will fit my 94 sls?
  51. A question on diagnostic codes
  52. tires for 99 STS??
  53. taking off oil pan?
  54. Update on PCM gone Loco
  55. Overheating: correct diagnostics
  56. N* Power Steering Pump Pressurizing
  57. 95 Northstart Leaking Coolant
  58. What next? PCM shot or something I'm missing? Please help.
  59. Oil Pressure Drop on V8 NS
  60. looking for some new ideas and help with northstar motor
  61. Backfire and smoke under the Hood
  62. Northstar/HotRod/Blower
  63. 1996 ESC 40K, Does Trans-fluid need changing?
  64. Help Needed - 95 SLS Stalls then won't idle or Revs Like Crazy! Lots of codes!
  65. Code Question for a 2000 deville north*.
  66. Can I swap an 02 N*into my 98 STS?
  67. Sorry Caddy Dudes!
  68. 97 N* low oil pressure light flickering
  69. 1996 Northstar Excess Fuel Consumption
  70. 94 SLS questions
  71. Northstar Swap question
  72. Can someone tell me what these codes mean?
  73. p076 presure solenoid problem
  74. northstar oil consumtion
  75. Compass reads incorrect sometimes?
  76. "Normal" Northstar Coolant Operating Temp?
  77. 1999 Deville trouble codes
  78. 97 STS Code Info U1027
  79. supercharger for the Northstar
  80. Radiator leak...how much $$$?
  81. '94 SLS Head bolt Torque value?
  82. stalling
  83. 4T80E shift algorhythm logic -- what are the facts?
  84. Oil Leak
  85. Overfill oil in northstar, keep reading bad stuff
  86. Changed starter, now very hard start, run, white smoke.
  87. '94 STS rattle
  88. '94 SLS smoking bad
  89. Bad idle and deacceleration
  90. '94 DeVille Concours North*
  91. Factory air intake box question
  92. Stop Engine Low Oil Presssure
  93. Northstar losing oil
  94. Pcm Gone Loco?
  95. Concours '94 Problem
  96. HELP PO25 code ????????
  97. Headgasket/temperatute swings
  98. Help with ACM codes please.
  99. Can a headgasket happen even with frequent coolant changes & if it never overheated?
  100. Exhaust manifold on N* 4.6
  101. Ect???
  102. 95 SLS Ruff Start (metal on metal)
  103. Gas Pedal Tapping When Engine Shut's Off
  104. 1995 Eldorado Northstar Engine Skips
  105. 99SLS Ruff idle when started
  106. 94 sts spark Plugs
  107. Shift Solenoid Problem help!!!!
  108. Would Magnaflows help MPG?
  109. Intake manifold gasket replacement...special tool?
  110. Factory Service Manual
  111. Oil change at 3K or when oil life=10%?
  112. blown head gasket
  113. Oil Life Monitor
  114. 95 NS chip burner
  115. If anyone needs a N* Deville & Protection
  116. Northstar overheating!
  117. 94 Seville STS service
  118. N* Headbolt Torque
  119. Quick code help please
  120. 97 n* rough idle
  121. Cylinder pressure test unsuccessful-missing something?
  122. O2 Sensors for 97 STS
  123. temp for n*
  124. Drumming up support...
  125. mechanic recommends oil additive
  126. How to turn engine to TDC w/ plugs out
  127. 1994 Concours exhaust diameter
  128. misfires @ idle & WOT, no codes
  129. Why Does My Engine Shift very Hard when hot? (No Codes)
  130. Raring to go
  131. NorthStar Oil leak
  132. How to air pressure test cylinder?
  133. 4t80e no codes, limp mode
  134. Where can i find a cheap N*
  135. Sounds that a N* engine bay should make
  136. Slight Fuel smell on startup.
  137. Need TSB 3179 and info on Service PROM
  138. intermittent chirping under the hood, at poweroff...
  139. N* Headbolt Torque Protocol
  140. life of Northstar?
  141. plug the plug or leave it open
  142. WTF Belt tensionner squeel?!?
  143. I Have a Question about my transmission fluid?
  144. Flush/Drain Coolant
  145. Cooling/overheating issue
  146. Code p1189 ????
  147. 97' DeVille Northstar overheating
  148. So, how did N* ended up in a Cadillac's engine bay?
  149. My Exhaust sound...Listen!
  150. Whos idea was it to mount the N* sideways?
  151. 97 deville trouble code help me
  152. Digital MPG read outs
  153. exhaust volume
  154. '01 STS Piston and Ring Replacement
  155. This is a long-shot, just maybe...
  156. A/C issue!!!! again
  157. Turbonator, Tornado????
  158. 96 Deville T.b. And Egr Cleaning
  159. If anyone is interested in buying an Engine
  160. Catalyst melted. Why?
  161. random spring & washer after oil change.
  162. 96 Concours Northstar W/PC0240 Code
  163. New Cluster - Help
  164. Northstar Transplant?
  165. 360 HP reman N*....BBob what's your take?
  166. Gasket blown - other work while there?
  167. Northstar threw a rod, hole in lower block. Rebuildable?
  168. Help
  169. Northstar drinking coolant - need advice
  170. Blown NorthStar
  171. Remove N* eng from top or Pwrtrn out Btm?
  172. car stalls at light ?
  173. So what's wrong with FWD?
  174. Performace Module???
  175. Thud, Clunk, Bang When shifting from Drive to Reverse or From Reverse to Drive
  176. Cam Position Sensor
  177. Dammm
  178. O2 sensor Question - bboby?
  179. 98 northstar cooling system
  180. 94 Sts A/c Problems Need Help
  181. 97 Deville. P0131 - what does this tell the computere
  182. Kicking coolant out the overflow hose on the surge tank
  183. No coolant supplement pellets available here.
  184. pan seal ??????
  185. Case 1/2 seal Question
  186. 94 Concours Need Help Big Time
  187. 97 Aurora with Northstar engine..Head gasket problem!
  188. transient powertrain "slack" when engaging??
  189. road trip spec's
  190. SELLING my Cadillac Deville DTS ------
  191. new head gasket sealant and bolt sealant
  192. CHANGE OIL message after new WATER PUMP installed
  193. would WOT's get rid of this code?
  194. Midthrottle surge...
  195. schematics 95 SLS water pump
  196. Dead Eldorado
  197. question about mixing of octane at the pump
  198. Using 20w50 oil in N* 99STS
  199. Need help quick - 2000 vs 99 injectors
  200. the STS almost doesnt start...any ideas?
  201. P0171 - P0174
  202. Doing First Tune Up
  203. Transmission service at the dealer?
  204. best choice?
  205. CAT = good and ?
  206. 4 cylinder Northstar - 97 DeVille
  207. RWD N* Project update
  208. 97 STS Cranks but doesn't start - error codes
  209. small tweaks that help or not?
  210. Running ragged p0300....
  211. 97 Deville - Sensor trouble, Running poor
  212. bad dealer
  213. No pressure on hoses
  214. Test for cam position sensors 98+?
  215. stuck at this part
  216. 96 SLS sometimes hard to start
  217. low (or no) oil pressure
  218. 94 Seville not starting
  219. drag strip times
  220. Coil Packs
  221. Rattling catalytic converter on n*
  222. Rear Speed Sensors Disconnected... On Purpose?
  223. N* ring end gap?
  224. 97 deville p420 code
  225. GOT CODES? I DO & IT SUCKS!!
  226. 2000 dhs plugs
  227. cooling fans
  228. Plugs/Wires check! EGR check! Phenolic plates???
  229. mud like residue in surge tank....
  230. seafoam
  231. idle? and mpg?
  232. northstar turbo
  233. '99 STS Temperature Problem ?
  234. No pressure in expansion tank
  235. Spark plug torque N*
  236. what hose do you drain coolant from? top or bottom?
  237. Changing Throttle bodies on my N*? Proceedure!
  238. how much dex cool and distilled water?
  239. 05 STS V8 Oil filter
  240. Best Oil Change Chain?
  241. engine managament/swap in jeep
  242. Forged crankshaft for N*
  243. Need "New" Northstar
  244. LT5 Vs Early Northstar
  245. 96 SLS Electrical Problems?
  246. Headgaskets?
  247. Twin Turbo or Supercharged...
  248. Mobil 5000, Conventional Oil?
  249. How to pull this out ?
  250. Oil leak!