: Northstar Engines and System Technical Discussion



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  1. Is the resonator necessary?
  2. Eldorado O2 sensors.
  3. Engine swap 97 Deville
  4. Need a little starting help?
  5. Is Seafoam safe to use in a Northstar?
  6. What oil is best for a 97 deville
  7. Honestly, is a Northstar Cadillac a wise purchase for a ~20 year old?
  8. Cost for a new starter in a 93-97 Northstar?
  9. Hey fellow cadillac lovers
  10. How many cubic inches is a N*?
  11. Transmission Fluid Running Out of Transmission.
  12. Differences between 94 and 98 N*
  13. hesitation then takes off like a bat out of hell.
  14. 1999 300 sts engine in a 97 deville
  15. Am I screwed ?
  16. Coolant Additives?
  17. Nitrous Help?!?!?!??!?!
  18. 93 Northstar stalling
  19. pcm location on 94 sts?
  20. motor
  21. Coolant Level
  22. 2005 N* with 10 miles $3000
  23. Engine Swap
  24. pics of the progress
  25. Oil Level Sensor?
  26. 97 seville cold crank problem... Help
  27. Cylinder leak-down test procedure (with percentage gauge)
  28. Coil Questions
  29. Purge Flow Problem
  30. Engine Cover?
  31. Modified Northstars - Need I say more?
  32. P0171 & P0174
  33. Anyone want a K&N air filter?
  34. Water in tailpipe, rough idle on start,
  35. Seville Engine replacement.
  36. Glasspacks
  37. 93 N* rough idle, no codes, loss power
  38. a/c compressor
  39. Contacted Fastchips
  40. 275vs300HP Eldo ESC/ETC
  41. GM Powertrain Information ".doc"
  42. '02 Deville Mods
  43. N* Ignition Module Pinout and Description?
  44. Excessive Idle RPM - Need advice
  45. bigserts
  46. Can you understand this?
  47. "New" Caddy, old leak?
  48. block swapping,crank sensors
  49. Tufoil?
  50. Northstart vs. 5.0
  51. MPG DROP - 22 to 17
  52. 94 Deville Concours- Idle in Drive Rough
  53. Should I use Dex-Cool?
  54. Dtc 420 & 1189
  55. Remote Start Killed My ICM!!?
  56. Where can you get headers for a Northstar?
  57. 02 Deville Sudden Stall
  58. light knocking... does not go away....
  59. 99 SLS runs funny
  60. Northstar 4.6 - coolant comes out rear exhaust manifold bolt hole
  61. AMSOIL in 96 STS with 88K
  62. Havoline?
  63. Replacement Air Filter
  64. Oil, Gasoline, N*'s, and long trips
  65. 96 SLS knock
  66. Crank sensor replacement
  67. Synthetic Blend?
  68. 93 STS N* P132 (E132) ... Knock Sensor Circuitry Failure
  69. Best Exhaust Upgrade for a 96 STS.
  70. N* Forged pistons
  71. N* crankshafts
  72. 96 STS overheating
  73. Looking for a core N*/Aurora V8 crank,,,
  74. Having a problem with 94 STS
  75. I Think I found my leak (Burning Oil Smell Cont.)
  76. Suspension Stability
  77. will '94 fuel injectors work in a '96?
  78. I miss the Bliss
  79. So much for your "bullet-proof" Northstar engines...
  80. 2000 sts read
  81. 97 deville overheated!!!
  82. What are these parts on my 95 Eldo?
  83. Sealing a radiator leak
  84. PCM P 0410 Secondary Air Injection System Malfunction
  85. Northstars in '95
  86. Reduced new engine power during breakin period?
  87. Boring out the N*?
  88. N* Ifr
  89. tuning software
  90. Pcm 0174
  91. Odc Ii
  92. ***New ROSS Pistons for a N* (WIth Ceramic Coating) $750***
  93. Alternator Replaced, Now Belt Squeaks, How to Fix?
  94. XLR's N* VVT rumble on startup and engine light.
  95. Quick question about a noise
  96. Help 06dts Mpg
  97. Zddp
  98. How deep do you go into motors and repairs
  99. Crank Position Sensor
  100. 94 STS cracked block
  101. Dex-cool?
  102. Performance chips
  103. It's Me again!
  104. CODES-I'm New-Check Engine light
  105. 96 SLS Head Gasket
  106. Serious help needed with 1995 northstar
  107. Cover up UGLY valve cover 95-99
  108. Who has the best warranty
  109. Annoying Tranny Whine
  110. Car just dies. Please help!
  111. service engine soon light
  112. 1993 STS running rough P053 Code
  113. 2000 Eldorado ETC Misfire #2
  114. Revisiting Airflow = Torque
  115. missed a time sert kit
  116. Newbie here and tryin to find my CKP
  117. Temperature Concerns
  118. Northstar- Starting, Running Problems
  119. 94 Seville intermittent hard start
  120. Engine miss
  121. sticker shock
  122. 9 codes today, i reckon a bad earth?
  123. oil change
  124. 70MPH pull.....
  125. reuse pistion rings?
  126. Engine Stall
  127. Contents of GM Top End Cleaner?
  128. OBDII Codes
  129. Iridium Spark plugs
  130. Oil Change
  131. Bar's Leaks J-120
  132. MAF Sensor
  133. cracked block pics
  134. possible Northstar PCM Programmer
  135. Export code
  136. Strange hole under ignition module
  137. Balls to the wall - N* style
  138. Timesert kit for sale
  139. Bank 2 identification
  140. Source of whining noise
  141. So many questions, so little time
  142. need help with p036 and p094
  143. Odin8 are you out there ?
  144. will '94 concours fuel injectors fit '96 sts?
  145. 1BadCaddy 94' STS update on power tune up.
  146. 4T80E Troubles?
  147. Coolant leak under throttle body area?
  148. After Shift Sol. Replacement...
  149. Safe amount of boos for stock motor?
  150. Found the reason why my car "jerks" during acceleration
  151. Head torque
  152. Ground Cable Location?
  153. Northstar leaking coolant....big time!
  154. Setting the timing gears and belts on 96 n* 4.6
  155. Help on hesitant start...
  156. New to forum, getting a caddy, some advice needed...
  157. Head gasket = overheat while driving or idling?
  158. Mini N*
  159. Tranny Prob, sheared pump shaft
  160. Twin Turbo N* powered 1948 Tucker
  161. cracked block
  162. Legit "Performance chip"?
  163. Missing Hose On Vacuum Purge Switch?
  164. N* water pump froze in housing
  165. coolant leak 00 sts
  166. 1990 Eldorado won't Start !
  167. started my headgasket job today
  168. is this normal or could this be my problem
  169. Anyone ever see this thing
  170. Sludge in my engine?
  171. WOT's northstar knock?
  172. STS Coolant Burping Air out of Coolant Question
  173. Oil leak
  174. N* rebuild....hmmm what to add to my mod list
  175. Keys to long lasting N*'s
  176. Complete engine overhaul, need help ASAP
  177. Cadillac Eldorado 1995 ER HELP NEEDED!!!
  178. Huge Problem, No Shop Can Fix!!!! Help!!!
  179. 04 STS misfires when idles, goes away when you floor it.
  180. northstar research thread pics 56k beware
  181. Exhaust size
  182. Plugs And Wires
  183. Which kind of FPR?
  184. 93 Seville?
  185. 96-99 motor wiring diagrams
  186. 91 Eldo STILL misses
  187. Torque vs Horsepower primer
  188. Crankshaft Position Sensor Replaced-Code Still Set P0385
  189. Water pump question on 94 STS
  190. Is it possible to lose HP
  191. Performance tune-up for 94 North*using performance coils.
  192. 97 N* Shaky idle
  193. 97 N8 port, polish and valve job
  194. Differance between 94 and 97 N*
  195. Question about the transmission fluid
  196. Northstar Misfire... no error codes
  197. More Horsepower
  198. Volant Review / So I did it without instructions.
  199. Tranny Prob, Please help!!
  200. High oil consumption (1 quart/week!!)
  201. A/C question/help for 94 STS
  202. Magnets Increase Mileage/Power??
  203. TC0047 Code
  204. Need some help installing Volant
  205. Add Engine Oil alert
  206. P1860... Problem
  207. loss of fuel pressure
  208. O2 sensor change, mpg improvement?
  209. Northstar heads(all) and ECU Chip(93-95). Real power!
  210. 97 deville-changing plugs and wires
  211. NS300L Insert kit
  212. Head gasket set
  213. Coolant Change?
  214. P0441... P0404... ?
  215. P0533... fuel gauge is going nuts
  216. Trans Solenoids??
  217. Timesert VS NS300L Insert System
  218. How much runout is okay?
  219. 95 concours stalling
  220. Looking for Timesert Kit
  221. '94 SLS oil pan / oil manifold / half case leaks
  222. Metal pipe coolant leak...'custom' fix???
  223. Engine apart, which direction does it crank?
  224. 94 Northstar with broken valve.
  225. Oil pressure emergency
  226. hesitation
  227. Timeserts
  228. '99 or '00 ETC?
  229. Fuel pump locking ring
  230. What else do I need to know after unhooking PCM
  231. coolant change
  232. Volant Install
  233. Rebuilt Northstars
  234. Found Rotella 10W-30 at O'Reilly auto parts
  235. PSA: Need sensors?
  236. 1999 Deville front suspension rattle
  237. 1996 Deville 4.6L Water Pump Replacement
  238. N* drive train weight
  239. felpro headgaskets
  240. N* 4.0 liter removal
  241. Smoke at startup?
  242. Whining Power Steering Pump
  243. Questions about servicing my 99 Deville
  244. Where 2 buy main and rod berings for 2004 N*
  245. Lady In Distress - '01 Northstar Intermittent Stalling & Not Starting - Clues Please?
  246. Anyone have HG pics? Not overheating but probs...
  247. Nitrous A/F findings & questions.
  248. 2 N* Questions - Coolent and Tranny Dipstick?
  249. 96 STS Head Gasket Story...
  250. cool Northstar info.