: Northstar Engines and System Technical Discussion



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