View Full Version : Northstar Performance and Technical Discussion


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  1. FPR Replaced - Still Runs Little Rough
  2. Light Fright
  3. 1994 SLS P)43 and P045 Codes??
  4. northstar engine
  5. 1996 engine swap.
  6. Change oil @ 3k or when comp says to?
  7. NorthStar .. fathered by the ALLANTE ....
  8. Whoa, look at this, L37 in a '95 Monte Carlo Z34!
  9. check oil level?
  10. de carbonization of northstar engine
  11. Mobil 1 in all '08 Caddys
  12. 4.9 vs. Northstar
  13. Posi install questions!
  14. Oil Usage
  15. pinout of crankshaft sensors?
  16. 2002 N* Deville occasionally idles too high
  17. Adding a friction modifier to the tranny
  18. How much horsepower would this do?
  19. What is that noise?
  20. ticking or knocking
  21. WOT: Is it really effective?
  22. Check coolant level message appeared twice in 6 months
  23. Failure to start
  24. Motor Oil is Killing our Cars / LONG / OT
  25. How bout this idea: Northstar in a golfcart?
  26. rsm racing
  27. oil weight
  28. rebuild a northstar
  29. Old Man checkin in..Hi Sal!
  30. serious question about my n*
  31. Free Ign. module with 3 coils from 93 STS
  32. Starburst on oil
  33. 96 Cadillac ETC, Idle Problems
  34. 2000+ N* Info needed
  35. Bad Mileage And Weird Whoosh Sound
  36. Why Lower crankcase should be done...
  37. New northstar reliable?
  38. How to test ignition control module
  39. Engine identification and swap.
  40. Installed intake
  41. 99 deville with a missfire
  42. Is the resonator necessary?
  43. Eldorado O2 sensors.
  44. Engine swap 97 Deville
  45. Need a little starting help?
  46. Is Seafoam safe to use in a Northstar?
  47. What oil is best for a 97 deville
  48. Honestly, is a Northstar Cadillac a wise purchase for a ~20 year old?
  49. Cost for a new starter in a 93-97 Northstar?
  50. Hey fellow cadillac lovers
  51. How many cubic inches is a N*?
  52. Transmission Fluid Running Out of Transmission.
  53. Differences between 94 and 98 N*
  54. hesitation then takes off like a bat out of hell.
  55. 1999 300 sts engine in a 97 deville
  56. Am I screwed ?
  57. Coolant Additives?
  58. Nitrous Help?!?!?!??!?!
  59. 93 Northstar stalling
  60. pcm location on 94 sts?
  61. motor
  62. Coolant Level
  63. 2005 N* with 10 miles $3000
  64. Engine Swap
  65. pics of the progress
  66. Oil Level Sensor?
  67. 97 seville cold crank problem... Help
  68. Cylinder leak-down test procedure (with percentage gauge)
  69. Coil Questions
  70. Purge Flow Problem
  71. Engine Cover?
  72. Modified Northstars - Need I say more?
  73. P0171 & P0174
  74. Anyone want a K&N air filter?
  75. Water in tailpipe, rough idle on start,
  76. Seville Engine replacement.
  77. Glasspacks
  78. 93 N* rough idle, no codes, loss power
  79. a/c compressor
  80. Contacted Fastchips
  81. 275vs300HP Eldo ESC/ETC
  82. GM Powertrain Information ".doc"
  83. '02 Deville Mods
  84. N* Ignition Module Pinout and Description?
  85. Excessive Idle RPM - Need advice
  86. bigserts
  87. Can you understand this?
  88. "New" Caddy, old leak?
  89. block swapping,crank sensors
  90. Tufoil?
  91. Northstart vs. 5.0
  92. MPG DROP - 22 to 17
  93. 94 Deville Concours- Idle in Drive Rough
  94. Should I use Dex-Cool?
  95. Dtc 420 & 1189
  96. Remote Start Killed My ICM!!?
  97. Where can you get headers for a Northstar?
  98. 02 Deville Sudden Stall
  99. light knocking... does not go away....
  100. 99 SLS runs funny
  101. Northstar 4.6 - coolant comes out rear exhaust manifold bolt hole
  102. AMSOIL in 96 STS with 88K
  103. Havoline?
  104. Replacement Air Filter
  105. Oil, Gasoline, N*'s, and long trips
  106. 96 SLS knock
  107. Crank sensor replacement
  108. Synthetic Blend?
  109. 93 STS N* P132 (E132) ... Knock Sensor Circuitry Failure
  110. Best Exhaust Upgrade for a 96 STS.
  111. N* Forged pistons
  112. N* crankshafts
  113. 96 STS overheating
  114. Looking for a core N*/Aurora V8 crank,,,
  115. Having a problem with 94 STS
  116. I Think I found my leak (Burning Oil Smell Cont.)
  117. Suspension Stability
  118. will '94 fuel injectors work in a '96?
  119. I miss the Bliss
  120. So much for your "bullet-proof" Northstar engines...
  121. 2000 sts read
  122. 97 deville overheated!!!
  123. What are these parts on my 95 Eldo?
  124. Sealing a radiator leak
  125. PCM P0410 Secondary Air Injection System Malfunction
  126. Northstars in '95
  127. Reduced new engine power during breakin period?
  128. Boring out the N*?
  129. N* Ifr
  130. tuning software
  131. Pcm 0174
  132. Odc Ii
  133. ***New ROSS Pistons for a N* (WIth Ceramic Coating) $750***
  134. Alternator Replaced, Now Belt Squeaks, How to Fix?
  135. XLR's N* VVT rumble on startup and engine light.
  136. Quick question about a noise
  137. Help 06dts Mpg
  138. Zddp
  139. How deep do you go into motors and repairs
  140. Crank Position Sensor
  141. 94 STS cracked block
  142. Dex-cool?
  143. Performance chips
  144. It's Me again!
  145. CODES-I'm New-Check Engine light
  146. 96 SLS Head Gasket
  147. Serious help needed with 1995 northstar
  148. Cover up UGLY valve cover 95-99
  149. Who has the best warranty
  150. Annoying Tranny Whine
  151. Car just dies. Please help!
  152. service engine soon light
  153. 1993 STS running rough P053 Code
  154. 2000 Eldorado ETC Misfire #2
  155. Revisiting Airflow = Torque
  156. missed a time sert kit
  157. Newbie here and tryin to find my CKP
  158. Temperature Concerns
  159. Northstar- Starting, Running Problems
  160. 94 Seville intermittent hard start
  161. Engine miss
  162. sticker shock
  163. 9 codes today, i reckon a bad earth?
  164. oil change
  165. 70MPH pull.....
  166. reuse pistion rings?
  167. Engine Stall
  168. Contents of GM Top End Cleaner?
  169. OBDII Codes
  170. Iridium Spark plugs
  171. Oil Change
  172. Bar's Leaks J-120
  173. MAF Sensor
  174. cracked block pics
  175. possible Northstar PCM Programmer
  176. Export code
  177. Strange hole under ignition module
  178. Balls to the wall - N* style
  179. Timesert kit for sale
  180. Bank 2 identification
  181. Source of whining noise
  182. So many questions, so little time
  183. need help with p036 and p094
  184. Odin8 are you out there ?
  185. will '94 concours fuel injectors fit '96 sts?
  186. 1BadCaddy 94' STS update on power tune up.
  187. 4T80E Troubles?
  188. Coolant leak under throttle body area?
  189. After Shift Sol. Replacement...
  190. Safe amount of boos for stock motor?
  191. Found the reason why my car "jerks" during acceleration
  192. Head torque
  193. Ground Cable Location?
  194. Northstar leaking coolant....big time!
  195. Setting the timing gears and belts on 96 n* 4.6
  196. Help on hesitant start...
  197. New to forum, getting a caddy, some advice needed...
  198. Head gasket = overheat while driving or idling?
  199. Mini N*
  200. Tranny Prob, sheared pump shaft
  201. Twin Turbo N* powered 1948 Tucker
  202. cracked block
  203. Legit "Performance chip"?
  204. Missing Hose On Vacuum Purge Switch?
  205. N* water pump froze in housing
  206. coolant leak 00 sts
  207. 1990 Eldorado won't Start !
  208. started my headgasket job today
  209. is this normal or could this be my problem
  210. Anyone ever see this thing
  211. Sludge in my engine?
  212. WOT's northstar knock?
  213. STS Coolant Burping Air out of Coolant Question
  214. Oil leak
  215. N* rebuild....hmmm what to add to my mod list
  216. Keys to long lasting N*'s
  217. Complete engine overhaul, need help ASAP
  218. Cadillac Eldorado 1995 ER HELP NEEDED!!!
  219. Huge Problem, No Shop Can Fix!!!! Help!!!
  220. 04 STS misfires when idles, goes away when you floor it.
  221. northstar research thread pics 56k beware
  222. Exhaust size
  223. Plugs And Wires
  224. Which kind of FPR?
  225. 93 Seville?
  226. 96-99 motor wiring diagrams
  227. 91 Eldo STILL misses
  228. Torque vs Horsepower primer
  229. Crankshaft Position Sensor Replaced-Code Still Set P0385
  230. Water pump question on 94 STS
  231. Is it possible to lose HP
  232. Performance tune-up for 94 North*using performance coils.
  233. 97 N* Shaky idle
  234. 97 N8 port, polish and valve job
  235. Differance between 94 and 97 N*
  236. Question about the transmission fluid
  237. Northstar Misfire... no error codes
  238. More Horsepower
  239. Volant Review / So I did it without instructions.
  240. Tranny Prob, Please help!!
  241. High oil consumption (1 quart/week!!)
  242. A/C question/help for 94 STS
  243. Magnets Increase Mileage/Power??
  244. TC0047 Code
  245. Need some help installing Volant
  246. Add Engine Oil alert
  247. P1860... Problem
  248. loss of fuel pressure
  249. O2 sensor change, mpg improvement?
  250. Northstar heads(all) and ECU Chip(93-95). Real power!