: Northstar Engines and System Technical Discussion



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  1. 95 Aurora OBD I or OBD II
  2. Normal Temp Readings
  3. Northstar for marine use?
  4. 92 Eldo OBD Code help
  5. kick down
  6. WOT in a Aurora 4.0
  7. Low Oil Pressure
  8. When buying a Northstar powered car....
  9. Oil OIl Everywhere Not a drop to spare
  10. Overheating 95 Seville Sls
  11. Rough idle at start-up
  12. Northstar low oil pressure alarm
  13. Nothstar fairytails
  14. rough idling at lights
  15. Anyone know what "P1320 - IC 4X Reference Circuit Intermittent" means?
  16. Codes p0174, b2102, u1064
  17. Prestone EG coolant "new formula"? for 95 SLS N*
  18. Elusive overheating problem solved/excess oil found
  19. NorthStar Head Bolts
  20. 4.6L Parts Supplier and Availability Question
  21. Torque Convertor removal, problem (96 4.6L)
  22. 4.6 Northstar Time-sert headbolt hole repair kit
  23. My 94 seville idles and runs terrible. I've done everything!
  24. oil consumption cured
  25. How often do I clean the throttle body?
  26. 94 A/C Problem
  27. Flushing radiator 98 deville
  28. Help with codes for an 02 Deville....
  29. 95 Eldo Idle/Acceleration????
  30. I'm sure this has been asked
  31. 1997 stalling problem
  32. 10% Ethanol comes to Northeast U.S.
  33. So I've been using 5W30...
  34. My tranny is FUBAR!
  35. Northstart - Blown Head / Headgasket?
  36. HOW TO: Test/Change TPS (99 STS)
  37. Rebuilt Northstar, No Codes, Poor MPG
  38. 4T80E Torque Converter Removal
  39. 97 ETC Complete Exhaust
  40. help with new car
  41. Fuel mileage (Holy cow!!!)
  42. Radiator Sealant
  43. 2000-2004 crank sensors
  44. Transmission squeak?
  45. Missing 9 HP
  46. How good is K&N filters... really?
  47. Leaking anti-freeze poss waterpump area
  48. Timeserts
  49. L37 gear shifts at what speeds?
  50. Rough cold idle...
  51. help in determing this motor
  52. Is there any interest in 93-95 bored throttle bodies?
  53. Temp gauge issue (Question 2)
  54. Fuel gauge issue (Question 1)
  55. Coolant boiling out of overflow
  56. upgrades...K+N =BAD???
  57. Well im alive...
  58. 1999 deville North** lost mileage
  59. Actual N* engine swaps
  60. Coolant Leak
  61. Just bought my first Cadillac-Has green coolant
  62. Any increase MPG tips?
  63. why ios engine running hotter than before
  64. where is the thermostat located in 2003 deville
  65. how to change coolant in 2003 deville
  66. Head Gasket Going
  67. difference between 275 and 300hp N*?
  68. 96-98 Intake parts
  69. Why is the Northstar "better" than the Intech?
  70. Post 2000 N*?
  71. Motor Mount Question
  72. A/C Question 1994 STS
  73. real fast idle
  74. So I Put My Sled On The Dyno Today..
  75. N* Supercharger and Turbo Systems!?!
  76. 93 N* AC bypass belt?
  77. How come N* isn't used in more vehicles?
  78. Switched to Mobil-1 and oil consumption dropped
  79. 2000 deville dts (Engine runs rough when 1st started)
  80. 2 mufflers for cosmetics or performance?
  81. Northstar upgrades?
  82. How difficult is this?
  83. It won't fire!!!!
  84. Northstar stands alone?
  85. Engine on or off during On Board Diagnostics?
  86. timing pics, homemade locating pins, please look
  87. HELP! Need part number........
  88. AC Recharging Help
  89. About those electric superchargers...
  90. Possibly the best sounding N*?
  91. $660 tune up for 95 STS??!!
  92. Engine Temp. Sensor
  93. When do I replace the AC Compressor
  94. 94 SLS 4.6l, code P071
  95. 130mph??
  96. oil filter adapter
  97. 94 to 97 Northstar interchange question
  98. Bad batch of DELCO PLATINUM 41-950 SPARK PLUGS
  99. How long should plugs/wires last?
  100. Easy question - which is right and which is left?
  101. Tell me how to do a WOT.
  102. How did this guy do burnouts?
  103. 95 Eldorado occasional starting problem.
  104. Coolant change Air purging?
  105. two torque sequences?
  106. mystery oil leak
  107. Still Can't Get The Front Valve Cover Off!!!
  108. Ignition System Problems
  109. This sounds dumb but I'm gonna ask anyway - air intake question
  110. A/C recharge
  111. API grades
  112. Engine Difference between 97' & 99' STS?
  113. part# for speedy sleeve
  114. Post Head gasket job (need Veteran rebuilders advise)
  115. 94 concours acting up..
  116. Trans Question 01 DTS
  117. Engine Error Codes...Please Help
  118. 4.6 L NorthStar Engine Design Questions
  119. multi miss fire multi codes 1996 dev
  120. Have a big ?
  121. What does it all mean?
  122. Metal flakes in engine oil
  123. latest lower end seal job procedure
  124. OBDII Tuner software for Northstar.
  125. Poor gas mileage in aurora 4.0
  126. Northstar Head Gasket, which side, which jug is more common
  127. Code P1415 help?
  128. need new O2s
  129. 2002 Deville transmission
  130. Wanted:1999 4.6 NorthStar leak-down values
  131. MAP Sensor relocation
  132. Can someone explain HOW my injectors went bad?
  133. Bad Mileage Not Fpr
  134. 1999 Cadillac STS Exhaust Mufflers
  135. 4t80e production changes 95-9
  136. Manifolds are melting my car
  137. Check Atf
  138. Putting Northstar on an Engine Stand
  139. Headgasket job +++?
  140. northstar swap into another car, a few questions
  141. 2002 Seville STS Cataylst Issues
  142. Engine Temperatures
  143. Can a 1999 4.6L Northstar "Y" be replaced/exchanged with a "9" of the same year
  144. Amsoil nano-filters (air & oil)
  145. DELCO PLATINUM #41-950 SPARK PLUGS from eBay
  146. 93 Water Pump Confusion
  147. How to check for bad ignition coil?
  148. 94 Eldorado surge in engine and 4 codes
  149. Questions On Crank Shafts
  150. weird start problem that occured
  151. northstar head switching
  152. Northstar 4.6 Interchange and Swapping
  153. Car Farts After WOT
  154. 1999 Northstar engine 85K Miles, How can one tell if is good
  155. 03 Seville Steering Adjustments? ? ?
  156. On My 3 Rear Main Seal
  157. 96 sts crankshaft position sensors
  158. any tranny experts out there?
  159. Fpr For $141.08
  160. Water pump
  161. Rwd N*
  162. Coolant Drain
  163. Coolant Leak 98 Deville
  164. so any chance of an AFC
  165. AC Compressor bypass
  166. 3.5L Shortstar Ignition
  167. Sound
  168. Northstar reliability...
  169. Name That Part
  170. Post headgasket job, one loose end left.
  171. Need re-assembly advise!
  172. Minor starting problem
  173. does it work? (hyper lube)
  174. 96 cadillac deville code after code?!?
  175. Transmission Durability?
  176. Shaky Tachometer at High RPM
  177. 1996 Seville STS Crank Sensors
  178. What other cars use the same style injectors?
  179. Adding Freon
  180. Lost power steering fluid rapidly. Is there a hose?
  181. Northstar engine rebuilders or performance builders in SoCal?
  182. 95 Northstar Coolant leak
  183. EXP ID Codes
  184. Looking for N*mech in northern RI
  185. 93 Eldorado T.C ignition issues
  186. voltage drops when car in drive
  187. after a&b solenoid
  188. Experts please help
  189. 1994 Cadillac Sevile STS thumping into fourth/overdrive
  190. know it all mechanic
  191. Well fellas, I think its really time....
  192. Northstar Head Gasket Issue
  193. timesert kit - for sale on ebay
  194. Strange rattling
  195. Northstar performance parts
  196. Procedure for Coolant flush
  197. Dynomax - Long life?
  198. Running Functional Test on my 94 Deville Concours.
  199. 94 northstar swap
  200. Airbox Computer?
  201. ICM Replacement
  202. Cranks, but won't start
  203. 96 deville antifreeze coming out exhaust
  204. Its Getting Hot Inside
  205. STS fuel Injection problem NEED HELP
  206. I think I'm missing a few ponies!
  207. 99 Deville Hesitating???
  208. Eliminating the exhaust crossover??
  209. Po138???
  210. Front Valve Cover Removal
  211. You guys read this stuff????
  212. camshaft swap "9" motor to "Y" motor
  213. What is TSB 99-06-04-053?
  214. 94 cadillac concours
  215. Can anyone tell me what these compression numbers mean?
  216. H Gasket Job Ballpark Price Needed for Parts
  217. Heater core replacement, help!
  218. Ah, darn... My 94 Eldorado Is having problems.
  219. Anyone know a reputable transmission shop in Orlando?
  220. Lifter?valve noise
  221. 93 Northstar dies out at idle
  222. Time Sert Kit Needed
  223. Engine Replacement
  224. Broken Head Bolt (small type)
  225. P0741 - TCC System Stuck Off...Now What??
  226. homemade locating dowels - a possibility?
  227. Rear Valve Cover Leak!!
  228. Going from a 4.0 to a 4.6
  229. how many miles on your N*?
  230. Crank Position Sensor Replace Quick Question...
  231. 98 STS code P0404 (and P0300)
  232. Not Nearly As Hard As I Thought
  233. what to do about SO codes...
  234. overfilled tranny....
  235. OBD1 chip reprogramming?
  236. Hey Check Out What Im Doing....
  237. 95-6 transmission harness
  238. new headbolts
  239. Torque Converter Clutch Stuck...How to Fix??
  240. BS? "aftermarket Mass Air Sensor = improved hp, torque and mileage from your car"
  241. pulling engine, top or bottom???
  242. RANGER: Can't Identify Codes...
  243. 1996 1/8th mile times!
  244. '96 SDV Update...2 Codes...Help??
  245. Need a new alternator......
  246. Cranking but not starting.. fuel pump relay?
  247. EXP ID 83, 84, 140, 25 ??? Any Help?
  248. timesert kit for sale
  249. Factory Specs for Compression??
  250. torque wrench advice