: Northstar Engines and System Technical Discussion



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  1. Service Engine Soon? No apparent problems
  2. Replaced plug wires and plugs still misfire code
  3. I want more power out of my Northstar
  4. Is there any update on a head gasket sealer that works?
  5. What happened?
  6. Infinitely better than the 'turbonoter'!
  7. Headgasket change ????
  8. Motor Noise
  9. best oil for the 96 northstar 133000 miles
  10. northstar oil leak issues
  11. Where can I cash in a blown PCM core?
  12. hole in the block!!!!!!!!!!
  13. Intake Manifold removal
  14. 96 Edlo Cranks will not start
  15. Lower temp stat & fan sensor?
  16. 93 Allante Northstar oil leak
  17. Guide to replace water pump...
  18. Surge tank
  19. Dex Cool
  20. My crank pulley is wobbling...
  21. Throttle Body Question...
  22. oil pressure light
  23. General Northstar info needed
  24. overheating
  25. bad smell and smoke
  26. How do i clean the heads on my aluminum block?
  27. Dex-cool controversy
  28. what year engine is this!
  29. gasket
  30. NEW (used) Cadillac Owner Deville Northstar 32V
  31. Overheating '99 D'Elegance, need to sell....
  32. headgasket blown?
  33. 1996 cadillac deville for sale
  34. Shift solonoid ?, not like in thread below
  35. 97 eldorado etc with a stumble
  36. do I need two sets of timeserts?
  37. Trouble starting once engine is warm
  38. coolant level
  39. Ok computer genius!! I need you help please
  40. removing northstar engine AC COMPRESSOR question
  41. Intermittant detonation
  42. n*Headgasket Diag. the Hardway
  43. Using 1st, 2nd, 3rd gears in 99' STS
  44. Northstar 1993 Explosion - Urgent Need
  45. having a starting problem on my 94 sls
  46. '95 Northstar into a '94?
  47. NorthStar reliability?
  48. Leaking Coolant, where is it coming from?
  49. Removing the front valve cover on 98 N*???
  50. Low battery voltage causing hard starts ?
  51. new server with past informative posts
  52. Oil Leak Question
  53. service.gm.com username/password
  54. Slipping out of overdrive and P094 code
  55. will 99 n* spark plug wires fit 97 n* ???
  56. Update on my 99' Eldo issues.. and thanks
  57. 97 DeVille Concours low oil pressure stop engine???
  58. sensor names?!?!?!
  59. Cost of rebuilding transmission?
  60. 99 STS Engine Temp Sensor problem
  61. New Owner, 97 Eldo, A Few Thoughts And Questions
  62. what is the conditioner called to add to the radiator coolant??
  63. Toyota MR2 powered by...Northstar
  64. Northstar Twin Turbo...
  65. A helicopter powered by...Northstar engine
  66. A guy with TWO N* engines in his Caddy...The TwinStar
  67. A guy with a turbocharged Northstar powered Fiero...
  68. Found: Northstar Engine Info:
  69. Hi, new here with q on a 99 Eld.
  70. Running Rich?????
  71. Spark Plug Replacement
  72. Cooling System Hoses
  73. 95 STS Crank sensor,location ??? help
  74. engine braking a la overrun clutch
  75. Best Price/ Dealer for Time-serts?
  76. Looking for Northstar Parts!
  77. accuracy of temp sensor???? please help
  78. Oil Seal Tool ?
  79. Help need info.
  80. 94 Caddy Concours Tranny/Linkage?
  81. Need help with '94 STS codes
  82. P022 code TPS open
  83. where can i buy rear control arm bushings?
  84. Replacing Timeserts in 96 Eldorado
  85. N* hp over the years...
  86. Installing Oil Pressure Gauge???
  87. 97 Deville ran 278 Degrees..any chance i did not blow the heads?"
  88. 97 DeVille Concours still runnin hot
  89. HELP! Need serpentine belt diagram
  90. Vacuum pressure
  91. old engine, bad engine?
  92. 95 Cadillac Seville Northstar 4.6 V8 Swap...
  93. P0609 - help
  94. Shift Solenoids A & B, Need some Help!
  95. What do these codes mean in plain english ?
  96. N* performance help
  97. Northstar stud problem
  98. Noisy Northstar
  99. northstar swap?
  100. Transmission NIGHTMARE
  101. '94 SLS, 4.6L, how do you set the cam alignment?
  102. 1993 Eldo...ALL THE OIL CAME OUT
  103. what engine years will fit my 94 sls?
  104. A question on diagnostic codes
  105. tires for 99 STS??
  106. taking off oil pan?
  107. Update on PCM gone Loco
  108. Overheating: correct diagnostics
  109. N* Power Steering Pump Pressurizing
  110. 95 Northstart Leaking Coolant
  111. What next? PCM shot or something I'm missing? Please help.
  112. Oil Pressure Drop on V8 NS
  113. looking for some new ideas and help with northstar motor
  114. Backfire and smoke under the Hood
  115. Northstar/HotRod/Blower
  116. 1996 ESC 40K, Does Trans-fluid need changing?
  117. Help Needed - 95 SLS Stalls then won't idle or Revs Like Crazy! Lots of codes!
  118. Code Question for a 2000 deville north*.
  119. Can I swap an 02 N*into my 98 STS?
  120. Sorry Caddy Dudes!
  121. 97 N* low oil pressure light flickering
  122. 1996 Northstar Excess Fuel Consumption
  123. 94 SLS questions
  124. Northstar Swap question
  125. Can someone tell me what these codes mean?
  126. p076 presure solenoid problem
  127. northstar oil consumtion
  128. Compass reads incorrect sometimes?
  129. "Normal" Northstar Coolant Operating Temp?
  130. 1999 Deville trouble codes
  131. 97 STS Code Info U1027
  132. supercharger for the Northstar
  133. Radiator leak...how much $$$?
  134. '94 SLS Head bolt Torque value?
  135. stalling
  136. 4T80E shift algorhythm logic -- what are the facts?
  137. Oil Leak
  138. Overfill oil in northstar, keep reading bad stuff
  139. Changed starter, now very hard start, run, white smoke.
  140. '94 STS rattle
  141. '94 SLS smoking bad
  142. Bad idle and deacceleration
  143. '94 DeVille Concours North*
  144. Factory air intake box question
  145. Stop Engine Low Oil Presssure
  146. Northstar losing oil
  147. Pcm Gone Loco?
  148. Concours '94 Problem
  149. P 025 code - 1995 STS
  150. Headgasket/temperatute swings
  151. Help with ACM codes please.
  152. Can a headgasket happen even with frequent coolant changes & if it never overheated?
  153. Exhaust manifold on N* 4.6
  154. Ect???
  155. 95 SLS Ruff Start (metal on metal)
  156. Gas Pedal Tapping When Engine Shut's Off
  157. 1995 Eldorado Northstar Engine Skips
  158. 99SLS Ruff idle when started
  159. 94 sts spark Plugs
  160. Shift Solenoid Problem help!!!!
  161. Would Magnaflows help MPG?
  162. Intake manifold gasket replacement...special tool?
  163. Factory Service Manual
  164. Oil change at 3K or when oil life=10%?
  165. blown head gasket
  166. Oil Life Monitor
  167. 95 NS chip burner
  168. If anyone needs a N* Deville & Protection
  169. Northstar overheating!
  170. 94 Seville STS service
  171. N* Headbolt Torque
  172. Quick code help please
  173. 97 n* rough idle
  174. Cylinder pressure test unsuccessful-missing something?
  175. O2 Sensors for 97 STS
  176. temp for n*
  177. Drumming up support...
  178. mechanic recommends oil additive
  179. How to turn engine to TDC w/ plugs out
  180. 1994 Concours exhaust diameter
  181. misfires @ idle & WOT, no codes
  182. Why Does My Engine Shift very Hard when hot? (No Codes)
  183. Raring to go
  184. NorthStar Oil leak
  185. How to air pressure test cylinder?
  186. 4t80e no codes, limp mode
  187. Where can i find a cheap N*
  188. Sounds that a N* engine bay should make
  189. Slight Fuel smell on startup.
  190. Need TSB 3179 and info on Service PROM
  191. intermittent chirping under the hood, at poweroff...
  192. N* Headbolt Torque Protocol
  193. life of Northstar?
  194. plug the plug or leave it open
  195. WTF Belt tensionner squeel?!?
  196. I Have a Question about my transmission fluid?
  197. Flush/Drain Coolant
  198. Cooling/overheating issue
  199. Code p1189 ????
  200. 97' DeVille Northstar overheating
  201. So, how did N* ended up in a Cadillac's engine bay?
  202. My Exhaust sound...Listen!
  203. Whos idea was it to mount the N* sideways?
  204. 97 deville trouble code help me
  205. Digital MPG read outs
  206. exhaust volume
  207. '01 STS Piston and Ring Replacement
  208. This is a long-shot, just maybe...
  209. A/C issue!!!! again
  210. Turbonator, Tornado????
  211. 96 Deville T.b. And Egr Cleaning
  212. If anyone is interested in buying an Engine
  213. Catalyst melted. Why?
  214. random spring & washer after oil change.
  215. 96 Concours Northstar W/PC0240 Code
  216. New Cluster - Help
  217. Northstar Transplant?
  218. 360 HP reman N*....BBob what's your take?
  219. Gasket blown - other work while there?
  220. Northstar threw a rod, hole in lower block. Rebuildable?
  221. Help
  222. Northstar drinking coolant - need advice
  223. Blown NorthStar
  224. Remove N* eng from top or Pwrtrn out Btm?
  225. car stalls at light ?
  226. So what's wrong with FWD?
  227. Performace Module???
  228. Thud, Clunk, Bang When shifting from Drive to Reverse or From Reverse to Drive
  229. Cam Position Sensor
  230. Dammm
  231. O2 sensor Question - bboby?
  232. 98 northstar cooling system
  233. 94 Sts A/c Problems Need Help
  234. 97 Deville. P0131 - what does this tell the computere
  235. Kicking coolant out the overflow hose on the surge tank
  236. No coolant supplement pellets available here.
  237. pan seal ??????
  238. Case 1/2 seal Question
  239. 94 Concours Need Help Big Time
  240. 97 Aurora with Northstar engine..Head gasket problem!
  241. transient powertrain "slack" when engaging??
  242. road trip spec's
  243. SELLING my Cadillac Deville DTS ------
  244. new head gasket sealant and bolt sealant
  245. CHANGE OIL message after new WATER PUMP installed
  246. would WOT's get rid of this code?
  247. Midthrottle surge...
  248. schematics 95 SLS water pump
  249. Dead Eldorado
  250. question about mixing of octane at the pump