: Northstar Engines and System Technical Discussion



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  1. 94 STS needs help
  2. lifting a northstar
  3. Bosch +2 plugs (report)
  4. OSD says "Change Trans Fluid"
  5. premium at the pump...or is it??
  6. Heating Up
  7. 0-60
  8. More performance
  9. cooling fan problem
  10. 1995 seville pcm problem HELP
  11. Valve Train Question
  12. I keep getting P0404 and P0441? Looking for suggestions...
  13. wiring oil pressure sensor
  14. I keep getting P0404 and P0441
  15. Cooling Fans
  16. Some N* questions
  17. Check Engine Oil Level
  18. This N* is living a good life...
  19. Read TECH TIPS FPR - More Info needed
  20. Intakes
  21. 93 sts running rough only when hot
  22. What does "B2118 - Front Vertical Sensor Failed" mean?
  23. Anti-Sieze and Spark Plugs
  24. Intake Manifold questions - chime in!
  25. thermostat for north star
  26. Preparing for coolant change / Double Checking.
  27. 95 Intake Manifold Interchange?
  28. p0741 trouble code
  29. 1996 4.6 L. Rebuild, what should be replaced.
  30. Replacement parts after reman engine
  31. hardest water pump to install
  32. Sticky-Noisy Valve Lifters, What to Do?
  33. ISC Adjustment Procedure for OBD1 How To
  34. Need Part Number 94 N* INTAKE MANIFOLD
  35. My mechanic wants to put in a new radiator, should I let him?
  36. 94 caddy coolant leak
  37. Crossover measurement
  38. northstar in a fiero
  39. Oil Additive Question
  40. Overheating and low oil pressure
  41. How about no muffler??
  42. Engine rough running misses no power 95 Eldorado 4.6
  43. Borla vs Corsa and others
  44. starter noise, doesn't start
  45. oil pan gasket change, is this quote correct!?
  46. Mixing Coolants.
  47. '95 Concours leaking oil between engine and trans
  48. Time serts for sale
  49. Northstar changes year to year
  50. no power with Traction Control off
  51. Oil Change question.. price???
  52. A/C and vacuum
  53. 10 best engines, N* not 2 b found
  54. 93 runs rough when hot.
  55. Spark Plug Wire Placement
  56. Adjust TCS Sensitivity?
  57. "The power to set it free"
  58. Oil Analysis
  59. Tried Blue Devil?
  60. Overheating HELP!!!
  61. Alternator Removal??
  62. MAF screen missing
  63. Washed My North*
  64. Battery No Charge
  65. PCM programming question
  66. 95 TPS replace
  67. 93 sts fuel filter
  68. Engine Stall
  69. Can 'sticky' EGR cause misfire or similar?
  70. head gasket mileage
  71. Cadillac Dealerships
  72. dexcool flush
  73. 93 sts rough idle and fluttering under acceleration
  74. wanna see performance then mayb you wanna watch this
  75. cam specs for a 1995 sts
  76. Chance of Fire ??
  77. +++++Looking for a "Time-Sert" tool set+++++
  78. +++++Looking for a "Time-Sert" tool set+++++
  79. 97 STS overheating
  80. water pump
  81. oil change and coolant change this friday
  82. 97 SLS misfiring... ?
  83. Mystery Belt (Simple Question)
  84. 95 Aurora OBD I or OBD II
  85. Normal Temp Readings
  86. Northstar for marine use?
  87. 92 Eldo OBD Code help
  88. kick down
  89. WOT in a Aurora 4.0
  90. Low Oil Pressure
  91. When buying a Northstar powered car....
  92. Oil OIl Everywhere Not a drop to spare
  93. Overheating 95 Seville Sls
  94. Rough idle at start-up
  95. Northstar low oil pressure alarm
  96. Nothstar fairytails
  97. rough idling at lights
  98. Anyone know what "P1320 - IC 4X Reference Circuit Intermittent" means?
  99. Codes p0174, b2102, u1064
  100. Prestone EG coolant "new formula"? for 95 SLS N*
  101. Elusive overheating problem solved/excess oil found
  102. NorthStar Head Bolts
  103. 4.6L Parts Supplier and Availability Question
  104. Torque Convertor removal, problem (96 4.6L)
  105. 4.6 Northstar Time-sert headbolt hole repair kit
  106. My 94 seville idles and runs terrible. I've done everything!
  107. oil consumption cured
  108. How often do I clean the throttle body?
  109. 94 A/C Problem
  110. Flushing radiator 98 deville
  111. Help with codes for an 02 Deville....
  112. 95 Eldo Idle/Acceleration????
  113. I'm sure this has been asked
  114. 1997 stalling problem
  115. 10% Ethanol comes to Northeast U.S.
  116. So I've been using 5W30...
  117. My tranny is FUBAR!
  118. Northstart - Blown Head / Headgasket?
  119. HOW TO: Test/Change TPS (99 STS)
  120. Rebuilt Northstar, No Codes, Poor MPG
  121. 4T80E Torque Converter Removal
  122. 97 ETC Complete Exhaust
  123. help with new car
  124. Fuel mileage (Holy cow!!!)
  125. Radiator Sealant
  126. 2000-2004 crank sensors
  127. Transmission squeak?
  128. Missing 9 HP
  129. How good is K&N filters... really?
  130. Leaking anti-freeze poss waterpump area
  131. Timeserts
  132. L37 gear shifts at what speeds?
  133. Rough cold idle...
  134. help in determing this motor
  135. Is there any interest in 93-95 bored throttle bodies?
  136. Temp gauge issue (Question 2)
  137. Fuel gauge issue (Question 1)
  138. Coolant boiling out of overflow
  139. upgrades...K+N =BAD???
  140. Well im alive...
  141. 1999 deville North** lost mileage
  142. Actual N* engine swaps
  143. Coolant Leak
  144. Just bought my first Cadillac-Has green coolant
  145. Any increase MPG tips?
  146. why ios engine running hotter than before
  147. where is the thermostat located in 2003 deville
  148. how to change coolant in 2003 deville
  149. Head Gasket Going
  150. difference between 275 and 300hp N*?
  151. 96-98 Intake parts
  152. Why is the Northstar "better" than the Intech?
  153. Post 2000 N*?
  154. Motor Mount Question
  155. A/C Question 1994 STS
  156. real fast idle
  157. So I Put My Sled On The Dyno Today..
  158. N* Supercharger and Turbo Systems!?!
  159. 93 N* AC bypass belt?
  160. How come N* isn't used in more vehicles?
  161. Switched to Mobil-1 and oil consumption dropped
  162. 2000 deville dts (Engine runs rough when 1st started)
  163. 2 mufflers for cosmetics or performance?
  164. Northstar upgrades?
  165. How difficult is this?
  166. It won't fire!!!!
  167. Northstar stands alone?
  168. Engine on or off during On Board Diagnostics?
  169. timing pics, homemade locating pins, please look
  170. HELP! Need part number........
  171. AC Recharging Help
  172. About those electric superchargers...
  173. Possibly the best sounding N*?
  174. $660 tune up for 95 STS??!!
  175. Engine Temp. Sensor
  176. When do I replace the AC Compressor
  177. 94 SLS 4.6l, code P071
  178. 130mph??
  179. oil filter adapter
  180. 94 to 97 Northstar interchange question
  181. Bad batch of DELCO PLATINUM 41-950 SPARK PLUGS
  182. How long should plugs/wires last?
  183. Easy question - which is right and which is left?
  184. Tell me how to do a WOT.
  185. How did this guy do burnouts?
  186. 95 Eldorado occasional starting problem.
  187. Coolant change Air purging?
  188. two torque sequences?
  189. mystery oil leak
  190. Still Can't Get The Front Valve Cover Off!!!
  191. Ignition System Problems
  192. This sounds dumb but I'm gonna ask anyway - air intake question
  193. A/C recharge
  194. API grades
  195. Engine Difference between 97' & 99' STS?
  196. part# for speedy sleeve
  197. Post Head gasket job (need Veteran rebuilders advise)
  198. 94 concours acting up..
  199. Trans Question 01 DTS
  200. Engine Error Codes...Please Help
  201. 4.6 L NorthStar Engine Design Questions
  202. multi miss fire multi codes 1996 dev
  203. Have a big ?
  204. What does it all mean?
  205. Metal flakes in engine oil
  206. latest lower end seal job procedure
  207. OBDII Tuner software for Northstar.
  208. Poor gas mileage in aurora 4.0
  209. Northstar Head Gasket, which side, which jug is more common
  210. Code P1415 help?
  211. need new O2s
  212. 2002 Deville transmission
  213. Wanted:1999 4.6 NorthStar leak-down values
  214. MAP Sensor relocation
  215. Can someone explain HOW my injectors went bad?
  216. Bad Mileage Not Fpr
  217. 1999 Cadillac STS Exhaust Mufflers
  218. 4t80e production changes 95-9
  219. Manifolds are melting my car
  220. Check Atf
  221. Putting Northstar on an Engine Stand
  222. Headgasket job +++?
  223. northstar swap into another car, a few questions
  224. 2002 Seville STS Cataylst Issues
  225. Engine Temperatures
  226. Can a 1999 4.6L Northstar "Y" be replaced/exchanged with a "9" of the same year
  227. Amsoil nano-filters (air & oil)
  228. DELCO PLATINUM #41-950 SPARK PLUGS from eBay
  229. 93 Water Pump Confusion
  230. How to check for bad ignition coil?
  231. 94 Eldorado surge in engine and 4 codes
  232. Questions On Crank Shafts
  233. weird start problem that occured
  234. northstar head switching
  235. Northstar 4.6 Interchange and Swapping
  236. Car Farts After WOT
  237. 1999 Northstar engine 85K Miles, How can one tell if is good
  238. 03 Seville Steering Adjustments? ? ?
  239. On My 3 Rear Main Seal
  240. 96 sts crankshaft position sensors
  241. any tranny experts out there?
  242. Fpr For $141.08
  243. Water pump
  244. Rwd N*
  245. Coolant Drain
  246. Coolant Leak 98 Deville
  247. so any chance of an AFC
  248. AC Compressor bypass
  249. 3.5L Shortstar Ignition
  250. Sound