: Northstar Engines and System Technical Discussion



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