: Northstar Engines and System Technical Discussion



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  1. Excessive Idle RPM - Need advice
  2. bigserts
  3. Can you understand this?
  4. "New" Caddy, old leak?
  5. block swapping,crank sensors
  6. Tufoil?
  7. Northstart vs. 5.0
  8. MPG DROP - 22 to 17
  9. 94 Deville Concours- Idle in Drive Rough
  10. Should I use Dex-Cool?
  11. Dtc 420 & 1189
  12. Remote Start Killed My ICM!!?
  13. Where can you get headers for a Northstar?
  14. 02 Deville Sudden Stall
  15. light knocking... does not go away....
  16. 99 SLS runs funny
  17. Northstar 4.6 - coolant comes out rear exhaust manifold bolt hole
  18. AMSOIL in 96 STS with 88K
  19. Havoline?
  20. Replacement Air Filter
  21. Oil, Gasoline, N*'s, and long trips
  22. 96 SLS knock
  23. Crank sensor replacement
  24. Synthetic Blend?
  25. 93 STS N* P132 (E132) ... Knock Sensor Circuitry Failure
  26. Best Exhaust Upgrade for a 96 STS.
  27. N* Forged pistons
  28. N* crankshafts
  29. 96 STS overheating
  30. Looking for a core N*/Aurora V8 crank,,,
  31. Having a problem with 94 STS
  32. I Think I found my leak (Burning Oil Smell Cont.)
  33. Suspension Stability
  34. will '94 fuel injectors work in a '96?
  35. I miss the Bliss
  36. So much for your "bullet-proof" Northstar engines...
  37. 2000 sts read
  38. 97 deville overheated!!!
  39. What are these parts on my 95 Eldo?
  40. Sealing a radiator leak
  41. PCM P 0410 Secondary Air Injection System Malfunction
  42. Northstars in '95
  43. Reduced new engine power during breakin period?
  44. Boring out the N*?
  45. N* Ifr
  46. tuning software
  47. Pcm 0174
  48. Odc Ii
  49. ***New ROSS Pistons for a N* (WIth Ceramic Coating) $750***
  50. Alternator Replaced, Now Belt Squeaks, How to Fix?
  51. XLR's N* VVT rumble on startup and engine light.
  52. Quick question about a noise
  53. Help 06dts Mpg
  54. Zddp
  55. How deep do you go into motors and repairs
  56. Crank Position Sensor
  57. 94 STS cracked block
  58. Dex-cool?
  59. Performance chips
  60. It's Me again!
  61. CODES-I'm New-Check Engine light
  62. 96 SLS Head Gasket
  63. Serious help needed with 1995 northstar
  64. Cover up UGLY valve cover 95-99
  65. Who has the best warranty
  66. Annoying Tranny Whine
  67. Car just dies. Please help!
  68. service engine soon light
  69. 1993 STS running rough P053 Code
  70. 2000 Eldorado ETC Misfire #2
  71. Revisiting Airflow = Torque
  72. missed a time sert kit
  73. Newbie here and tryin to find my CKP
  74. Temperature Concerns
  75. Northstar- Starting, Running Problems
  76. 94 Seville intermittent hard start
  77. Engine miss
  78. sticker shock
  79. 9 codes today, i reckon a bad earth?
  80. oil change
  81. 70MPH pull.....
  82. reuse pistion rings?
  83. Engine Stall
  84. Contents of GM Top End Cleaner?
  85. OBDII Codes
  86. Iridium Spark plugs
  87. Oil Change
  88. Bar's Leaks J-120
  89. MAF Sensor
  90. cracked block pics
  91. possible Northstar PCM Programmer
  92. Export code
  93. Strange hole under ignition module
  94. Balls to the wall - N* style
  95. Timesert kit for sale
  96. Bank 2 identification
  97. Source of whining noise
  98. So many questions, so little time
  99. need help with p036 and p094
  100. Odin8 are you out there ?
  101. will '94 concours fuel injectors fit '96 sts?
  102. 1BadCaddy 94' STS update on power tune up.
  103. 4T80E Troubles?
  104. Coolant leak under throttle body area?
  105. After Shift Sol. Replacement...
  106. Safe amount of boos for stock motor?
  107. Found the reason why my car "jerks" during acceleration
  108. Head torque
  109. Ground Cable Location?
  110. Northstar leaking coolant....big time!
  111. Setting the timing gears and belts on 96 n* 4.6
  112. Help on hesitant start...
  113. New to forum, getting a caddy, some advice needed...
  114. Head gasket = overheat while driving or idling?
  115. Mini N*
  116. Tranny Prob, sheared pump shaft
  117. Twin Turbo N* powered 1948 Tucker
  118. cracked block
  119. Legit "Performance chip"?
  120. Missing Hose On Vacuum Purge Switch?
  121. N* water pump froze in housing
  122. coolant leak 00 sts
  123. 1990 Eldorado won't Start !
  124. started my headgasket job today
  125. is this normal or could this be my problem
  126. Anyone ever see this thing
  127. Sludge in my engine?
  128. WOT's northstar knock?
  129. STS Coolant Burping Air out of Coolant Question
  130. Oil leak
  131. N* rebuild....hmmm what to add to my mod list
  132. Keys to long lasting N*'s
  133. Complete engine overhaul, need help ASAP
  134. Cadillac Eldorado 1995 ER HELP NEEDED!!!
  135. Huge Problem, No Shop Can Fix!!!! Help!!!
  136. 04 STS misfires when idles, goes away when you floor it.
  137. northstar research thread pics 56k beware
  138. Exhaust size
  139. Plugs And Wires
  140. Which kind of FPR?
  141. 93 Seville?
  142. 96-99 motor wiring diagrams
  143. 91 Eldo STILL misses
  144. Torque vs Horsepower primer
  145. Crankshaft Position Sensor Replaced-Code Still Set P0385
  146. Water pump question on 94 STS
  147. Is it possible to lose HP
  148. Performance tune-up for 94 North*using performance coils.
  149. 97 N* Shaky idle
  150. 97 N8 port, polish and valve job
  151. Differance between 94 and 97 N*
  152. Question about the transmission fluid
  153. Northstar Misfire... no error codes
  154. More Horsepower
  155. Volant Review / So I did it without instructions.
  156. Tranny Prob, Please help!!
  157. High oil consumption (1 quart/week!!)
  158. A/C question/help for 94 STS
  159. Magnets Increase Mileage/Power??
  160. TC0047 Code
  161. Need some help installing Volant
  162. Add Engine Oil alert
  163. P1860... Problem
  164. loss of fuel pressure
  165. O2 sensor change, mpg improvement?
  166. Northstar heads(all) and ECU Chip(93-95). Real power!
  167. 97 deville-changing plugs and wires
  168. NS300L Insert kit
  169. Head gasket set
  170. Coolant Change?
  171. P0441... P0404... ?
  172. P0533... fuel gauge is going nuts
  173. Trans Solenoids??
  174. Timesert VS NS300L Insert System
  175. How much runout is okay?
  176. 95 concours stalling
  177. Looking for Timesert Kit
  178. '94 SLS oil pan / oil manifold / half case leaks
  179. Metal pipe coolant leak...'custom' fix???
  180. Engine apart, which direction does it crank?
  181. 94 Northstar with broken valve.
  182. Oil pressure emergency
  183. hesitation
  184. Timeserts
  185. '99 or '00 ETC?
  186. Fuel pump locking ring
  187. What else do I need to know after unhooking PCM
  188. coolant change
  189. Volant Install
  190. Rebuilt Northstars
  191. Found Rotella 10W-30 at O'Reilly auto parts
  192. PSA: Need sensors?
  193. 1999 Deville front suspension rattle
  194. 1996 Deville 4.6L Water Pump Replacement
  195. N* drive train weight
  196. felpro headgaskets
  197. N* 4.0 liter removal
  198. Smoke at startup?
  199. Whining Power Steering Pump
  200. Questions about servicing my 99 Deville
  201. Where 2 buy main and rod berings for 2004 N*
  202. Lady In Distress - '01 Northstar Intermittent Stalling & Not Starting - Clues Please?
  203. Anyone have HG pics? Not overheating but probs...
  204. Nitrous A/F findings & questions.
  205. 2 N* Questions - Coolent and Tranny Dipstick?
  206. 96 STS Head Gasket Story...
  207. cool Northstar info.
  208. Engine removal
  209. 96 Deville 4.6 North* overheating problem
  210. Hot Hot Hot Is Gone - Finally
  211. A couple Nasty Problems! HELP!
  212. How to change fuel injectors?
  213. Tips for replacing Crankshaft Position Sensors
  214. Oil pan gasket leak!
  215. Oil leak?
  216. left blinker not working when headlights on
  217. Lag in the transmission
  218. p1441 evap code help
  219. P043 -- headache -- what is happening???
  220. New here
  221. Differences in 275 & 300 HP Nstar
  222. Electric Turbo
  223. PCM swap???
  224. Northstar Blocks Cracking ?
  225. what is wrong w/ my n*
  226. Oxygen Sensors Grounding
  227. 94 Seville-Turn signals not working, smoking?
  228. trouble starting after timesert job - HELP!
  229. How do you Northstar owners like your Northstars? Would you recommend them?
  230. Northstar performance Upgrades!!!
  231. Northstar Engine Block STEEL CYL INSERTS
  232. a lil help please
  233. How do I tell if my headgasket was repaired?
  234. keep losing coolant...hard to trace
  235. '94 STS is overheating
  236. '94 SLS Idling to fast
  237. 01 Eldo - 100shot Nitrous - track results
  238. RSM Racing / No more?
  239. 2000 STS Error Codes
  240. quick engine question
  241. A few questions about the 4.0 Northstar
  242. So what would happen...
  243. engine oil leaking
  244. Oil change today after 12,735 since last oil change
  245. Help with Check engine light and pcm codes!!
  246. Is this realistic ?
  247. which car to buy
  248. fuel injector fell out!?!?
  249. exhaust sizes and upgrades?
  250. exhuast sizes an performance