: Northstar Engines and System Technical Discussion



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  1. 93 Eldorado
  2. 98 deville hard starting
  3. check transmission message
  4. 99 deville/Northstar
  5. Opinions Needed
  6. Coolant supplement tabs not added at coolant change. Now what???
  7. 55.6 mpg
  8. 89in-lb? Seriously?
  9. transmission oil loss
  10. lean fuel mixture
  11. Has anybody bothered to check their Calculated Octane Rating on their OBDI Northstar?
  12. 98 STS airbox mod?
  13. cable acting up, white smoke 94 sls
  14. Trans Fluid Change Question
  15. Can anyone tell me if I have a bad head gasket
  16. Regular vs Premium Gas
  17. Po39
  18. My cheap-ass tune up
  19. head gasket and engine in-vehicle possible?
  20. 95 seville starter help!! plz look
  21. Possible Idling Problem?
  22. lifting out the '94 northstar.. please take a look
  23. My Nitrous project is under way...
  24. trans. leak
  25. c
  26. Coolant leak 98 DeVille and desparate
  27. Coolant leak and desparate
  28. Spark Plugs
  29. How about Eldo Performance Mods?
  30. new radiator, now engine overheats
  31. new radiator, now engine overheats
  32. Parts lookup by GM part #?? is it possible?
  33. Flushing 4T80E....how many quarts of fluid?
  34. changing PCValve on 94 eldorado
  35. Error code P035
  36. pull engine from the top in sections ?
  37. Sharp right turn=Puff of blue smoke!
  38. inside radiator leak/transmission leak?
  39. 93 Eldorado 4.6 Northstar "chuggle"
  40. high trans line pressure
  41. Firing order
  42. Northstar question!
  43. Can we get a moment of silence...
  44. air filter in a 1999 Deville
  45. So far I'm not thrilled
  46. Misfire and coils
  47. OBD2 Code RSM0038???
  48. Missfire - NEED HELP
  49. P036 & P056?
  50. Service Engine Soon? No apparent problems
  51. Replaced plug wires and plugs still misfire code
  52. I want more power out of my Northstar
  53. Is there any update on a head gasket sealer that works?
  54. What happened?
  55. Infinitely better than the 'turbonoter'!
  56. Headgasket change ????
  57. Motor Noise
  58. best oil for the 96 northstar 133000 miles
  59. northstar oil leak issues
  60. Where can I cash in a blown PCM core?
  61. hole in the block!!!!!!!!!!
  62. Intake Manifold removal
  63. 96 Edlo Cranks will not start
  64. Lower temp stat & fan sensor?
  65. 93 Allante Northstar oil leak
  66. Guide to replace water pump...
  67. Surge tank
  68. Dex Cool
  69. My crank pulley is wobbling...
  70. Throttle Body Question...
  71. oil pressure light
  72. General Northstar info needed
  73. overheating
  74. bad smell and smoke
  75. How do i clean the heads on my aluminum block?
  76. Dex-cool controversy
  77. what year engine is this!
  78. gasket
  79. NEW (used) Cadillac Owner Deville Northstar 32V
  80. Overheating '99 D'Elegance, need to sell....
  81. headgasket blown?
  82. 1996 cadillac deville for sale
  83. Shift solonoid ?, not like in thread below
  84. 97 eldorado etc with a stumble
  85. do I need two sets of timeserts?
  86. Trouble starting once engine is warm
  87. coolant level
  88. Ok computer genius!! I need you help please
  89. removing northstar engine AC COMPRESSOR question
  90. Intermittant detonation
  91. n*Headgasket Diag. the Hardway
  92. Using 1st, 2nd, 3rd gears in 99' STS
  93. Northstar 1993 Explosion - Urgent Need
  94. having a starting problem on my 94 sls
  95. '95 Northstar into a '94?
  96. NorthStar reliability?
  97. Leaking Coolant, where is it coming from?
  98. Removing the front valve cover on 98 N*???
  99. Low battery voltage causing hard starts ?
  100. new server with past informative posts
  101. Oil Leak Question
  102. service.gm.com username/password
  103. Slipping out of overdrive and P094 code
  104. will 99 n* spark plug wires fit 97 n* ???
  105. Update on my 99' Eldo issues.. and thanks
  106. 97 DeVille Concours low oil pressure stop engine???
  107. sensor names?!?!?!
  108. Cost of rebuilding transmission?
  109. 99 STS Engine Temp Sensor problem
  110. New Owner, 97 Eldo, A Few Thoughts And Questions
  111. what is the conditioner called to add to the radiator coolant??
  112. Toyota MR2 powered by...Northstar
  113. Northstar Twin Turbo...
  114. A helicopter powered by...Northstar engine
  115. A guy with TWO N* engines in his Caddy...The TwinStar
  116. A guy with a turbocharged Northstar powered Fiero...
  117. Found: Northstar Engine Info:
  118. Hi, new here with q on a 99 Eld.
  119. Running Rich?????
  120. Spark Plug Replacement
  121. Cooling System Hoses
  122. 95 STS Crank sensor,location ??? help
  123. engine braking a la overrun clutch
  124. Best Price/ Dealer for Time-serts?
  125. Looking for Northstar Parts!
  126. accuracy of temp sensor???? please help
  127. Oil Seal Tool ?
  128. Help need info.
  129. 94 Caddy Concours Tranny/Linkage?
  130. Need help with '94 STS codes
  131. P022 code TPS open
  132. where can i buy rear control arm bushings?
  133. Replacing Timeserts in 96 Eldorado
  134. N* hp over the years...
  135. Installing Oil Pressure Gauge???
  136. 97 Deville ran 278 Degrees..any chance i did not blow the heads?"
  137. 97 DeVille Concours still runnin hot
  138. HELP! Need serpentine belt diagram
  139. Vacuum pressure
  140. old engine, bad engine?
  141. 95 Cadillac Seville Northstar 4.6 V8 Swap...
  142. P0609 - help
  143. Shift Solenoids A & B, Need some Help!
  144. What do these codes mean in plain english ?
  145. N* performance help
  146. Northstar stud problem
  147. Noisy Northstar
  148. northstar swap?
  149. Transmission NIGHTMARE
  150. '94 SLS, 4.6L, how do you set the cam alignment?
  151. 1993 Eldo...ALL THE OIL CAME OUT
  152. what engine years will fit my 94 sls?
  153. A question on diagnostic codes
  154. tires for 99 STS??
  155. taking off oil pan?
  156. Update on PCM gone Loco
  157. Overheating: correct diagnostics
  158. N* Power Steering Pump Pressurizing
  159. 95 Northstart Leaking Coolant
  160. What next? PCM shot or something I'm missing? Please help.
  161. Oil Pressure Drop on V8 NS
  162. looking for some new ideas and help with northstar motor
  163. Backfire and smoke under the Hood
  164. Northstar/HotRod/Blower
  165. 1996 ESC 40K, Does Trans-fluid need changing?
  166. Help Needed - 95 SLS Stalls then won't idle or Revs Like Crazy! Lots of codes!
  167. Code Question for a 2000 deville north*.
  168. Can I swap an 02 N*into my 98 STS?
  169. Sorry Caddy Dudes!
  170. 97 N* low oil pressure light flickering
  171. 1996 Northstar Excess Fuel Consumption
  172. 94 SLS questions
  173. Northstar Swap question
  174. Can someone tell me what these codes mean?
  175. p076 presure solenoid problem
  176. northstar oil consumtion
  177. Compass reads incorrect sometimes?
  178. "Normal" Northstar Coolant Operating Temp?
  179. 1999 Deville trouble codes
  180. 97 STS Code Info U1027
  181. supercharger for the Northstar
  182. Radiator leak...how much $$$?
  183. '94 SLS Head bolt Torque value?
  184. stalling
  185. 4T80E shift algorhythm logic -- what are the facts?
  186. Oil Leak
  187. Overfill oil in northstar, keep reading bad stuff
  188. Changed starter, now very hard start, run, white smoke.
  189. '94 STS rattle
  190. '94 SLS smoking bad
  191. Bad idle and deacceleration
  192. '94 DeVille Concours North*
  193. Factory air intake box question
  194. Stop Engine Low Oil Presssure
  195. Northstar losing oil
  196. Pcm Gone Loco?
  197. Concours '94 Problem
  198. P 025 code - 1995 STS
  199. Headgasket/temperatute swings
  200. Help with ACM codes please.
  201. Can a headgasket happen even with frequent coolant changes & if it never overheated?
  202. Exhaust manifold on N* 4.6
  203. Ect???
  204. 95 SLS Ruff Start (metal on metal)
  205. Gas Pedal Tapping When Engine Shut's Off
  206. 1995 Eldorado Northstar Engine Skips
  207. 99SLS Ruff idle when started
  208. 94 sts spark Plugs
  209. Shift Solenoid Problem help!!!!
  210. Would Magnaflows help MPG?
  211. Intake manifold gasket replacement...special tool?
  212. Factory Service Manual
  213. Oil change at 3K or when oil life=10%?
  214. blown head gasket
  215. Oil Life Monitor
  216. 95 NS chip burner
  217. If anyone needs a N* Deville & Protection
  218. Northstar overheating!
  219. 94 Seville STS service
  220. N* Headbolt Torque
  221. Quick code help please
  222. 97 n* rough idle
  223. Cylinder pressure test unsuccessful-missing something?
  224. O2 Sensors for 97 STS
  225. temp for n*
  226. Drumming up support...
  227. mechanic recommends oil additive
  228. How to turn engine to TDC w/ plugs out
  229. 1994 Concours exhaust diameter
  230. misfires @ idle & WOT, no codes
  231. Why Does My Engine Shift very Hard when hot? (No Codes)
  232. Raring to go
  233. NorthStar Oil leak
  234. How to air pressure test cylinder?
  235. 4t80e no codes, limp mode
  236. Where can i find a cheap N*
  237. Sounds that a N* engine bay should make
  238. Slight Fuel smell on startup.
  239. Need TSB 3179 and info on Service PROM
  240. intermittent chirping under the hood, at poweroff...
  241. N* Headbolt Torque Protocol
  242. life of Northstar?
  243. plug the plug or leave it open
  244. WTF Belt tensionner squeel?!?
  245. I Have a Question about my transmission fluid?
  246. Flush/Drain Coolant
  247. Cooling/overheating issue
  248. Code p1189 ????
  249. 97' DeVille Northstar overheating
  250. So, how did N* ended up in a Cadillac's engine bay?