: Northstar Engines and System Technical Discussion



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  1. Differences between 94 and 98 N*
  2. hesitation then takes off like a bat out of hell.
  3. 1999 300 sts engine in a 97 deville
  4. Am I screwed ?
  5. Coolant Additives?
  6. Nitrous Help?!?!?!??!?!
  7. 93 Northstar stalling
  8. pcm location on 94 sts?
  9. motor
  10. Coolant Level
  11. 2005 N* with 10 miles $3000
  12. Engine Swap
  13. pics of the progress
  14. Oil Level Sensor?
  15. 97 seville cold crank problem... Help
  16. Cylinder leak-down test procedure (with percentage gauge)
  17. Coil Questions
  18. Purge Flow Problem
  19. Engine Cover?
  20. Modified Northstars - Need I say more?
  21. P0171 & P0174
  22. Anyone want a K&N air filter?
  23. Water in tailpipe, rough idle on start,
  24. Seville Engine replacement.
  25. Glasspacks
  26. 93 N* rough idle, no codes, loss power
  27. a/c compressor
  28. Contacted Fastchips
  29. 275vs300HP Eldo ESC/ETC
  30. GM Powertrain Information ".doc"
  31. '02 Deville Mods
  32. N* Ignition Module Pinout and Description?
  33. Excessive Idle RPM - Need advice
  34. bigserts
  35. Can you understand this?
  36. "New" Caddy, old leak?
  37. block swapping,crank sensors
  38. Tufoil?
  39. Northstart vs. 5.0
  40. MPG DROP - 22 to 17
  41. 94 Deville Concours- Idle in Drive Rough
  42. Should I use Dex-Cool?
  43. Dtc 420 & 1189
  44. Remote Start Killed My ICM!!?
  45. Where can you get headers for a Northstar?
  46. 02 Deville Sudden Stall
  47. light knocking... does not go away....
  48. 99 SLS runs funny
  49. Northstar 4.6 - coolant comes out rear exhaust manifold bolt hole
  50. AMSOIL in 96 STS with 88K
  51. Havoline?
  52. Replacement Air Filter
  53. Oil, Gasoline, N*'s, and long trips
  54. 96 SLS knock
  55. Crank sensor replacement
  56. Synthetic Blend?
  57. 93 STS N* P132 (E132) ... Knock Sensor Circuitry Failure
  58. Best Exhaust Upgrade for a 96 STS.
  59. N* Forged pistons
  60. N* crankshafts
  61. 96 STS overheating
  62. Looking for a core N*/Aurora V8 crank,,,
  63. Having a problem with 94 STS
  64. I Think I found my leak (Burning Oil Smell Cont.)
  65. Suspension Stability
  66. will '94 fuel injectors work in a '96?
  67. I miss the Bliss
  68. So much for your "bullet-proof" Northstar engines...
  69. 2000 sts read
  70. 97 deville overheated!!!
  71. What are these parts on my 95 Eldo?
  72. Sealing a radiator leak
  73. PCM P 0410 Secondary Air Injection System Malfunction
  74. Northstars in '95
  75. Reduced new engine power during breakin period?
  76. Boring out the N*?
  77. N* Ifr
  78. tuning software
  79. Pcm 0174
  80. Odc Ii
  81. ***New ROSS Pistons for a N* (WIth Ceramic Coating) $750***
  82. Alternator Replaced, Now Belt Squeaks, How to Fix?
  83. XLR's N* VVT rumble on startup and engine light.
  84. Quick question about a noise
  85. Help 06dts Mpg
  86. Zddp
  87. How deep do you go into motors and repairs
  88. Crank Position Sensor
  89. 94 STS cracked block
  90. Dex-cool?
  91. Performance chips
  92. It's Me again!
  93. CODES-I'm New-Check Engine light
  94. 96 SLS Head Gasket
  95. Serious help needed with 1995 northstar
  96. Cover up UGLY valve cover 95-99
  97. Who has the best warranty
  98. Annoying Tranny Whine
  99. Car just dies. Please help!
  100. service engine soon light
  101. 1993 STS running rough P053 Code
  102. 2000 Eldorado ETC Misfire #2
  103. Revisiting Airflow = Torque
  104. missed a time sert kit
  105. Newbie here and tryin to find my CKP
  106. Temperature Concerns
  107. Northstar- Starting, Running Problems
  108. 94 Seville intermittent hard start
  109. Engine miss
  110. sticker shock
  111. 9 codes today, i reckon a bad earth?
  112. oil change
  113. 70MPH pull.....
  114. reuse pistion rings?
  115. Engine Stall
  116. Contents of GM Top End Cleaner?
  117. OBDII Codes
  118. Iridium Spark plugs
  119. Oil Change
  120. Bar's Leaks J-120
  121. MAF Sensor
  122. cracked block pics
  123. possible Northstar PCM Programmer
  124. Export code
  125. Strange hole under ignition module
  126. Balls to the wall - N* style
  127. Timesert kit for sale
  128. Bank 2 identification
  129. Source of whining noise
  130. So many questions, so little time
  131. need help with p036 and p094
  132. Odin8 are you out there ?
  133. will '94 concours fuel injectors fit '96 sts?
  134. 1BadCaddy 94' STS update on power tune up.
  135. 4T80E Troubles?
  136. Coolant leak under throttle body area?
  137. After Shift Sol. Replacement...
  138. Safe amount of boos for stock motor?
  139. Found the reason why my car "jerks" during acceleration
  140. Head torque
  141. Ground Cable Location?
  142. Northstar leaking coolant....big time!
  143. Setting the timing gears and belts on 96 n* 4.6
  144. Help on hesitant start...
  145. New to forum, getting a caddy, some advice needed...
  146. Head gasket = overheat while driving or idling?
  147. Mini N*
  148. Tranny Prob, sheared pump shaft
  149. Twin Turbo N* powered 1948 Tucker
  150. cracked block
  151. Legit "Performance chip"?
  152. Missing Hose On Vacuum Purge Switch?
  153. N* water pump froze in housing
  154. coolant leak 00 sts
  155. 1990 Eldorado won't Start !
  156. started my headgasket job today
  157. is this normal or could this be my problem
  158. Anyone ever see this thing
  159. Sludge in my engine?
  160. WOT's northstar knock?
  161. STS Coolant Burping Air out of Coolant Question
  162. Oil leak
  163. N* rebuild....hmmm what to add to my mod list
  164. Keys to long lasting N*'s
  165. Complete engine overhaul, need help ASAP
  166. Cadillac Eldorado 1995 ER HELP NEEDED!!!
  167. Huge Problem, No Shop Can Fix!!!! Help!!!
  168. 04 STS misfires when idles, goes away when you floor it.
  169. northstar research thread pics 56k beware
  170. Exhaust size
  171. Plugs And Wires
  172. Which kind of FPR?
  173. 93 Seville?
  174. 96-99 motor wiring diagrams
  175. 91 Eldo STILL misses
  176. Torque vs Horsepower primer
  177. Crankshaft Position Sensor Replaced-Code Still Set P0385
  178. Water pump question on 94 STS
  179. Is it possible to lose HP
  180. Performance tune-up for 94 North*using performance coils.
  181. 97 N* Shaky idle
  182. 97 N8 port, polish and valve job
  183. Differance between 94 and 97 N*
  184. Question about the transmission fluid
  185. Northstar Misfire... no error codes
  186. More Horsepower
  187. Volant Review / So I did it without instructions.
  188. Tranny Prob, Please help!!
  189. High oil consumption (1 quart/week!!)
  190. A/C question/help for 94 STS
  191. Magnets Increase Mileage/Power??
  192. TC0047 Code
  193. Need some help installing Volant
  194. Add Engine Oil alert
  195. P1860... Problem
  196. loss of fuel pressure
  197. O2 sensor change, mpg improvement?
  198. Northstar heads(all) and ECU Chip(93-95). Real power!
  199. 97 deville-changing plugs and wires
  200. NS300L Insert kit
  201. Head gasket set
  202. Coolant Change?
  203. P0441... P0404... ?
  204. P0533... fuel gauge is going nuts
  205. Trans Solenoids??
  206. Timesert VS NS300L Insert System
  207. How much runout is okay?
  208. 95 concours stalling
  209. Looking for Timesert Kit
  210. '94 SLS oil pan / oil manifold / half case leaks
  211. Metal pipe coolant leak...'custom' fix???
  212. Engine apart, which direction does it crank?
  213. 94 Northstar with broken valve.
  214. Oil pressure emergency
  215. hesitation
  216. Timeserts
  217. '99 or '00 ETC?
  218. Fuel pump locking ring
  219. What else do I need to know after unhooking PCM
  220. coolant change
  221. Volant Install
  222. Rebuilt Northstars
  223. Found Rotella 10W-30 at O'Reilly auto parts
  224. PSA: Need sensors?
  225. 1999 Deville front suspension rattle
  226. 1996 Deville 4.6L Water Pump Replacement
  227. N* drive train weight
  228. felpro headgaskets
  229. N* 4.0 liter removal
  230. Smoke at startup?
  231. Whining Power Steering Pump
  232. Questions about servicing my 99 Deville
  233. Where 2 buy main and rod berings for 2004 N*
  234. Lady In Distress - '01 Northstar Intermittent Stalling & Not Starting - Clues Please?
  235. Anyone have HG pics? Not overheating but probs...
  236. Nitrous A/F findings & questions.
  237. 2 N* Questions - Coolent and Tranny Dipstick?
  238. 96 STS Head Gasket Story...
  239. cool Northstar info.
  240. Engine removal
  241. 96 Deville 4.6 North* overheating problem
  242. Hot Hot Hot Is Gone - Finally
  243. A couple Nasty Problems! HELP!
  244. How to change fuel injectors?
  245. Tips for replacing Crankshaft Position Sensors
  246. Oil pan gasket leak!
  247. Oil leak?
  248. left blinker not working when headlights on
  249. Lag in the transmission
  250. p1441 evap code help