: Northstar Engines and System Technical Discussion



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  1. starter noise, doesn't start
  2. oil pan gasket change, is this quote correct!?
  3. Mixing Coolants.
  4. '95 Concours leaking oil between engine and trans
  5. Time serts for sale
  6. Northstar changes year to year
  7. no power with Traction Control off
  8. Oil Change question.. price???
  9. A/C and vacuum
  10. 10 best engines, N* not 2 b found
  11. 93 runs rough when hot.
  12. Spark Plug Wire Placement
  13. Adjust TCS Sensitivity?
  14. "The power to set it free"
  15. Oil Analysis
  16. Tried Blue Devil?
  17. Overheating HELP!!!
  18. Alternator Removal??
  19. MAF screen missing
  20. Washed My North*
  21. Battery No Charge
  22. PCM programming question
  23. 95 TPS replace
  24. 93 sts fuel filter
  25. Engine Stall
  26. Can 'sticky' EGR cause misfire or similar?
  27. head gasket mileage
  28. Cadillac Dealerships
  29. dexcool flush
  30. 93 sts rough idle and fluttering under acceleration
  31. wanna see performance then mayb you wanna watch this
  32. cam specs for a 1995 sts
  33. Chance of Fire ??
  34. +++++Looking for a "Time-Sert" tool set+++++
  35. +++++Looking for a "Time-Sert" tool set+++++
  36. 97 STS overheating
  37. water pump
  38. oil change and coolant change this friday
  39. 97 SLS misfiring... ?
  40. Mystery Belt (Simple Question)
  41. 95 Aurora OBD I or OBD II
  42. Normal Temp Readings
  43. Northstar for marine use?
  44. 92 Eldo OBD Code help
  45. kick down
  46. WOT in a Aurora 4.0
  47. Low Oil Pressure
  48. When buying a Northstar powered car....
  49. Oil OIl Everywhere Not a drop to spare
  50. Overheating 95 Seville Sls
  51. Rough idle at start-up
  52. Northstar low oil pressure alarm
  53. Nothstar fairytails
  54. rough idling at lights
  55. Anyone know what "P1320 - IC 4X Reference Circuit Intermittent" means?
  56. Codes p0174, b2102, u1064
  57. Prestone EG coolant "new formula"? for 95 SLS N*
  58. Elusive overheating problem solved/excess oil found
  59. NorthStar Head Bolts
  60. 4.6L Parts Supplier and Availability Question
  61. Torque Convertor removal, problem (96 4.6L)
  62. 4.6 Northstar Time-sert headbolt hole repair kit
  63. My 94 seville idles and runs terrible. I've done everything!
  64. oil consumption cured
  65. How often do I clean the throttle body?
  66. 94 A/C Problem
  67. Flushing radiator 98 deville
  68. Help with codes for an 02 Deville....
  69. 95 Eldo Idle/Acceleration????
  70. I'm sure this has been asked
  71. 1997 stalling problem
  72. 10% Ethanol comes to Northeast U.S.
  73. So I've been using 5W30...
  74. My tranny is FUBAR!
  75. Northstart - Blown Head / Headgasket?
  76. HOW TO: Test/Change TPS (99 STS)
  77. Rebuilt Northstar, No Codes, Poor MPG
  78. 4T80E Torque Converter Removal
  79. 97 ETC Complete Exhaust
  80. help with new car
  81. Fuel mileage (Holy cow!!!)
  82. Radiator Sealant
  83. 2000-2004 crank sensors
  84. Transmission squeak?
  85. Missing 9 HP
  86. How good is K&N filters... really?
  87. Leaking anti-freeze poss waterpump area
  88. Timeserts
  89. L37 gear shifts at what speeds?
  90. Rough cold idle...
  91. help in determing this motor
  92. Is there any interest in 93-95 bored throttle bodies?
  93. Temp gauge issue (Question 2)
  94. Fuel gauge issue (Question 1)
  95. Coolant boiling out of overflow
  96. upgrades...K+N =BAD???
  97. Well im alive...
  98. 1999 deville North** lost mileage
  99. Actual N* engine swaps
  100. Coolant Leak
  101. Just bought my first Cadillac-Has green coolant
  102. Any increase MPG tips?
  103. why ios engine running hotter than before
  104. where is the thermostat located in 2003 deville
  105. how to change coolant in 2003 deville
  106. Head Gasket Going
  107. difference between 275 and 300hp N*?
  108. 96-98 Intake parts
  109. Why is the Northstar "better" than the Intech?
  110. Post 2000 N*?
  111. Motor Mount Question
  112. A/C Question 1994 STS
  113. real fast idle
  114. So I Put My Sled On The Dyno Today..
  115. N* Supercharger and Turbo Systems!?!
  116. 93 N* AC bypass belt?
  117. How come N* isn't used in more vehicles?
  118. Switched to Mobil-1 and oil consumption dropped
  119. 2000 deville dts (Engine runs rough when 1st started)
  120. 2 mufflers for cosmetics or performance?
  121. Northstar upgrades?
  122. How difficult is this?
  123. It won't fire!!!!
  124. Northstar stands alone?
  125. Engine on or off during On Board Diagnostics?
  126. timing pics, homemade locating pins, please look
  127. HELP! Need part number........
  128. AC Recharging Help
  129. About those electric superchargers...
  130. Possibly the best sounding N*?
  131. $660 tune up for 95 STS??!!
  132. Engine Temp. Sensor
  133. When do I replace the AC Compressor
  134. 94 SLS 4.6l, code P071
  135. 130mph??
  136. oil filter adapter
  137. 94 to 97 Northstar interchange question
  138. Bad batch of DELCO PLATINUM 41-950 SPARK PLUGS
  139. How long should plugs/wires last?
  140. Easy question - which is right and which is left?
  141. Tell me how to do a WOT.
  142. How did this guy do burnouts?
  143. 95 Eldorado occasional starting problem.
  144. Coolant change Air purging?
  145. two torque sequences?
  146. mystery oil leak
  147. Still Can't Get The Front Valve Cover Off!!!
  148. Ignition System Problems
  149. This sounds dumb but I'm gonna ask anyway - air intake question
  150. A/C recharge
  151. API grades
  152. Engine Difference between 97' & 99' STS?
  153. part# for speedy sleeve
  154. Post Head gasket job (need Veteran rebuilders advise)
  155. 94 concours acting up..
  156. Trans Question 01 DTS
  157. Engine Error Codes...Please Help
  158. 4.6 L NorthStar Engine Design Questions
  159. multi miss fire multi codes 1996 dev
  160. Have a big ?
  161. What does it all mean?
  162. Metal flakes in engine oil
  163. latest lower end seal job procedure
  164. OBDII Tuner software for Northstar.
  165. Poor gas mileage in aurora 4.0
  166. Northstar Head Gasket, which side, which jug is more common
  167. Code P1415 help?
  168. need new O2s
  169. 2002 Deville transmission
  170. Wanted:1999 4.6 NorthStar leak-down values
  171. MAP Sensor relocation
  172. Can someone explain HOW my injectors went bad?
  173. Bad Mileage Not Fpr
  174. 1999 Cadillac STS Exhaust Mufflers
  175. 4t80e production changes 95-9
  176. Manifolds are melting my car
  177. Check Atf
  178. Putting Northstar on an Engine Stand
  179. Headgasket job +++?
  180. northstar swap into another car, a few questions
  181. 2002 Seville STS Cataylst Issues
  182. Engine Temperatures
  183. Can a 1999 4.6L Northstar "Y" be replaced/exchanged with a "9" of the same year
  184. Amsoil nano-filters (air & oil)
  185. DELCO PLATINUM #41-950 SPARK PLUGS from eBay
  186. 93 Water Pump Confusion
  187. How to check for bad ignition coil?
  188. 94 Eldorado surge in engine and 4 codes
  189. Questions On Crank Shafts
  190. weird start problem that occured
  191. northstar head switching
  192. Northstar 4.6 Interchange and Swapping
  193. Car Farts After WOT
  194. 1999 Northstar engine 85K Miles, How can one tell if is good
  195. 03 Seville Steering Adjustments? ? ?
  196. On My 3 Rear Main Seal
  197. 96 sts crankshaft position sensors
  198. any tranny experts out there?
  199. Fpr For $141.08
  200. Water pump
  201. Rwd N*
  202. Coolant Drain
  203. Coolant Leak 98 Deville
  204. so any chance of an AFC
  205. AC Compressor bypass
  206. 3.5L Shortstar Ignition
  207. Sound
  208. Northstar reliability...
  209. Name That Part
  210. Post headgasket job, one loose end left.
  211. Need re-assembly advise!
  212. Minor starting problem
  213. does it work? (hyper lube)
  214. 96 cadillac deville code after code?!?
  215. Transmission Durability?
  216. Shaky Tachometer at High RPM
  217. 1996 Seville STS Crank Sensors
  218. What other cars use the same style injectors?
  219. Adding Freon
  220. Lost power steering fluid rapidly. Is there a hose?
  221. Northstar engine rebuilders or performance builders in SoCal?
  222. 95 Northstar Coolant leak
  223. EXP ID Codes
  224. Looking for N*mech in northern RI
  225. 93 Eldorado T.C ignition issues
  226. voltage drops when car in drive
  227. after a&b solenoid
  228. Experts please help
  229. 1994 Cadillac Sevile STS thumping into fourth/overdrive
  230. know it all mechanic
  231. Well fellas, I think its really time....
  232. Northstar Head Gasket Issue
  233. timesert kit - for sale on ebay
  234. Strange rattling
  235. Northstar performance parts
  236. Procedure for Coolant flush
  237. Dynomax - Long life?
  238. Running Functional Test on my 94 Deville Concours.
  239. 94 northstar swap
  240. Airbox Computer?
  241. ICM Replacement
  242. Cranks, but won't start
  243. 96 deville antifreeze coming out exhaust
  244. Its Getting Hot Inside
  245. STS fuel Injection problem NEED HELP
  246. I think I'm missing a few ponies!
  247. 99 Deville Hesitating???
  248. Eliminating the exhaust crossover??
  249. Po138???
  250. Front Valve Cover Removal