View Full Version : Northstar Performance and Technical Discussion


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  1. How about no muffler??
  2. Engine rough running misses no power 95 Eldorado 4.6
  3. Borla vs Corsa and others
  4. starter noise, doesn't start
  5. oil pan gasket change, is this quote correct!?
  6. Mixing Coolants.
  7. '95 Concours leaking oil between engine and trans
  8. Time serts for sale
  9. Northstar changes year to year
  10. no power with Traction Control off
  11. Oil Change question.. price???
  12. A/C and vacuum
  13. 10 best engines, N* not 2 b found
  14. 93 runs rough when hot.
  15. Spark Plug Wire Placement
  16. Adjust TCS Sensitivity?
  17. "The power to set it free"
  18. Oil Analysis
  19. Tried Blue Devil?
  20. Overheating HELP!!!
  21. Alternator Removal??
  22. MAF screen missing
  23. Washed My North*
  24. Battery No Charge
  25. PCM programming question
  26. 95 TPS replace
  27. 93 sts fuel filter
  28. Engine Stall
  29. Can 'sticky' EGR cause misfire or similar?
  30. head gasket mileage
  31. Cadillac Dealerships
  32. dexcool flush
  33. 93 sts rough idle and fluttering under acceleration
  34. wanna see performance then mayb you wanna watch this
  35. cam specs for a 1995 sts
  36. Chance of Fire ??
  37. +++++Looking for a "Time-Sert" tool set+++++
  38. +++++Looking for a "Time-Sert" tool set+++++
  39. 97 STS overheating
  40. water pump
  41. oil change and coolant change this friday
  42. 97 SLS misfiring... ?
  43. Mystery Belt (Simple Question)
  44. 95 Aurora OBD I or OBD II
  45. Normal Temp Readings
  46. Northstar for marine use?
  47. 92 Eldo OBD Code help
  48. kick down
  49. WOT in a Aurora 4.0
  50. Low Oil Pressure
  51. When buying a Northstar powered car....
  52. Oil OIl Everywhere Not a drop to spare
  53. Overheating 95 Seville Sls
  54. Rough idle at start-up
  55. Northstar low oil pressure alarm
  56. Nothstar fairytails
  57. rough idling at lights
  58. Anyone know what "P1320 - IC 4X Reference Circuit Intermittent" means?
  59. Codes p0174, b2102, u1064
  60. Prestone EG coolant "new formula"? for 95 SLS N*
  61. Elusive overheating problem solved/excess oil found
  62. NorthStar Head Bolts
  63. 4.6L Parts Supplier and Availability Question
  64. Torque Convertor removal, problem (96 4.6L)
  65. 4.6 Northstar Time-sert headbolt hole repair kit
  66. My 94 seville idles and runs terrible. I've done everything!
  67. oil consumption cured
  68. How often do I clean the throttle body?
  69. 94 A/C Problem
  70. Flushing radiator 98 deville
  71. Help with codes for an 02 Deville....
  72. 95 Eldo Idle/Acceleration????
  73. I'm sure this has been asked
  74. 1997 stalling problem
  75. 10% Ethanol comes to Northeast U.S.
  76. So I've been using 5W30...
  77. My tranny is FUBAR!
  78. Northstart - Blown Head / Headgasket?
  79. HOW TO: Test/Change TPS (99 STS)
  80. Rebuilt Northstar, No Codes, Poor MPG
  81. 4T80E Torque Converter Removal
  82. 97 ETC Complete Exhaust
  83. help with new car
  84. Fuel mileage (Holy cow!!!)
  85. Radiator Sealant
  86. 2000-2004 crank sensors
  87. Transmission squeak?
  88. Missing 9 HP
  89. How good is K&N filters... really?
  90. Leaking anti-freeze poss waterpump area
  91. Timeserts
  92. L37 gear shifts at what speeds?
  93. Rough cold idle...
  94. help in determing this motor
  95. Is there any interest in 93-95 bored throttle bodies?
  96. Temp gauge issue (Question 2)
  97. Fuel gauge issue (Question 1)
  98. Coolant boiling out of overflow
  99. upgrades...K+N =BAD???
  100. Well im alive...
  101. 1999 deville North** lost mileage
  102. Actual N* engine swaps
  103. Coolant Leak
  104. Just bought my first Cadillac-Has green coolant
  105. Any increase MPG tips?
  106. why ios engine running hotter than before
  107. where is the thermostat located in 2003 deville
  108. how to change coolant in 2003 deville
  109. Head Gasket Going
  110. difference between 275 and 300hp N*?
  111. 96-98 Intake parts
  112. Why is the Northstar "better" than the Intech?
  113. Post 2000 N*?
  114. Motor Mount Question
  115. A/C Question 1994 STS
  116. real fast idle
  117. So I Put My Sled On The Dyno Today..
  118. N* Supercharger and Turbo Systems!?!
  119. 93 N* AC bypass belt?
  120. How come N* isn't used in more vehicles?
  121. Switched to Mobil-1 and oil consumption dropped
  122. 2000 deville dts (Engine runs rough when 1st started)
  123. 2 mufflers for cosmetics or performance?
  124. Northstar upgrades?
  125. How difficult is this?
  126. It won't fire!!!!
  127. Northstar stands alone?
  128. Engine on or off during On Board Diagnostics?
  129. timing pics, homemade locating pins, please look
  130. HELP! Need part number........
  131. AC Recharging Help
  132. About those electric superchargers...
  133. Possibly the best sounding N*?
  134. $660 tune up for 95 STS??!!
  135. Engine Temp. Sensor
  136. When do I replace the AC Compressor
  137. 94 SLS 4.6l, code P071
  138. 130mph??
  139. oil filter adapter
  140. 94 to 97 Northstar interchange question
  141. Bad batch of DELCO PLATINUM 41-950 SPARK PLUGS
  142. How long should plugs/wires last?
  143. Easy question - which is right and which is left?
  144. Tell me how to do a WOT.
  145. How did this guy do burnouts?
  146. 95 Eldorado occasional starting problem.
  147. Coolant change Air purging?
  148. two torque sequences?
  149. mystery oil leak
  150. Still Can't Get The Front Valve Cover Off!!!
  151. Ignition System Problems
  152. This sounds dumb but I'm gonna ask anyway - air intake question
  153. A/C recharge
  154. API grades
  155. Engine Difference between 97' & 99' STS?
  156. part# for speedy sleeve
  157. Post Head gasket job (need Veteran rebuilders advise)
  158. 94 concours acting up..
  159. Trans Question 01 DTS
  160. Engine Error Codes...Please Help
  161. 4.6 L NorthStar Engine Design Questions
  162. multi miss fire multi codes 1996 dev
  163. Have a big ?
  164. What does it all mean?
  165. Metal flakes in engine oil
  166. latest lower end seal job procedure
  167. OBDII Tuner software for Northstar.
  168. Poor gas mileage in aurora 4.0
  169. Northstar Head Gasket, which side, which jug is more common
  170. Code P1415 help?
  171. need new O2s
  172. 2002 Deville transmission
  173. Wanted:1999 4.6 NorthStar leak-down values
  174. MAP Sensor relocation
  175. Can someone explain HOW my injectors went bad?
  176. Bad Mileage Not Fpr
  177. 1999 Cadillac STS Exhaust Mufflers
  178. 4t80e production changes 95-9
  179. Manifolds are melting my car
  180. Check Atf
  181. Putting Northstar on an Engine Stand
  182. Headgasket job +++?
  183. northstar swap into another car, a few questions
  184. 2002 Seville STS Cataylst Issues
  185. Engine Temperatures
  186. Can a 1999 4.6L Northstar "Y" be replaced/exchanged with a "9" of the same year
  187. Amsoil nano-filters (air & oil)
  188. DELCO PLATINUM #41-950 SPARK PLUGS from eBay
  189. 93 Water Pump Confusion
  190. How to check for bad ignition coil?
  191. 94 Eldorado surge in engine and 4 codes
  192. Questions On Crank Shafts
  193. weird start problem that occured
  194. northstar head switching
  195. Northstar 4.6 Interchange and Swapping
  196. Car Farts After WOT
  197. 1999 Northstar engine 85K Miles, How can one tell if is good
  198. 03 Seville Steering Adjustments? ? ?
  199. On My 3 Rear Main Seal
  200. 96 sts crankshaft position sensors
  201. any tranny experts out there?
  202. Fpr For $141.08
  203. Water pump
  204. Rwd N*
  205. Coolant Drain
  206. Coolant Leak 98 Deville
  207. so any chance of an AFC
  208. AC Compressor bypass
  209. 3.5L Shortstar Ignition
  210. Sound
  211. Northstar reliability...
  212. Name That Part
  213. Post headgasket job, one loose end left.
  214. Need re-assembly advise!
  215. Minor starting problem
  216. does it work? (hyper lube)
  217. 96 cadillac deville code after code?!?
  218. Transmission Durability?
  219. Shaky Tachometer at High RPM
  220. 1996 Seville STS Crank Sensors
  221. What other cars use the same style injectors?
  222. Adding Freon
  223. Lost power steering fluid rapidly. Is there a hose?
  224. Northstar engine rebuilders or performance builders in SoCal?
  225. 95 Northstar Coolant leak
  226. EXP ID Codes
  227. Looking for N*mech in northern RI
  228. 93 Eldorado T.C ignition issues
  229. voltage drops when car in drive
  230. after a&b solenoid
  231. Experts please help
  232. 1994 Cadillac Sevile STS thumping into fourth/overdrive
  233. know it all mechanic
  234. Well fellas, I think its really time....
  235. Northstar Head Gasket Issue
  236. timesert kit - for sale on ebay
  237. Strange rattling
  238. Northstar performance parts
  239. Procedure for Coolant flush
  240. Dynomax - Long life?
  241. Running Functional Test on my 94 Deville Concours.
  242. 94 northstar swap
  243. Airbox Computer?
  244. ICM Replacement
  245. Cranks, but won't start
  246. 96 deville antifreeze coming out exhaust
  247. Its Getting Hot Inside
  248. STS fuel Injection problem NEED HELP
  249. I think I'm missing a few ponies!
  250. 99 Deville Hesitating???