: Northstar Engines and System Technical Discussion



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