: Northstar Engines and System Technical Discussion



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  1. Computer codes and more help wanted
  2. coolant and A/C fans broken blades & mounting arms
  3. 1996 Sedan Deville Knock Sensor
  4. Newbie needs help
  5. frozen serpentine belt tensioner
  6. New Northstar, Unleaded or Premium?
  7. Want to buy northstar coils...
  8. Northstar indicates overheat
  9. BBOB - North* Oil Usage Comment
  10. Bad Cylinder?? Low compression?? Need help.
  11. Steam Engine, Now What?
  12. Zero Oil Pressure!! HELP!!
  13. INtake Manifold
  14. N*, Gas drowning my cylinder, getting smoke
  15. 2 Trans oil purge questions...or more?
  16. Erratic Throttle
  17. Strange Readings 1994 Deville Concourse N*
  18. What would a gas coating on a plug mean?
  19. BBOB - thermostat?
  20. Steam from Tail Pipe?
  21. exhaust questions
  22. water pump tool
  23. Cluster Question - Low Oil Pressure
  24. Limp home mode?
  25. Flowmasters?
  26. Flexplate to Torque converter - loctite??
  27. "Check Oil Level" message question
  28. hole in aluminum Radiator - help wanted
  29. Help Eldo Completely Dead But Batt.has Voltage
  30. Rough Idle...Sluggish Acceleration....
  31. Trouble codes
  32. P0741 - TCC System Stuck Off ???
  33. Clueless N* owners with 4 codes
  34. A P059 code?
  35. Longevity of the N* timing chain nylon tensioner pads ?
  36. What type of Power Steering fluid to use in 93 N* Eldo ?
  37. Limp Home Feature?
  38. Last pressure test update - hopefully!!!
  39. How important (really) is an oil cooler?
  40. Cascading multi-module failure-BBOB?
  41. Hesitation when a/c is on?
  42. PCV valve location 2003 Deville
  43. 4T80E Trans neutraling out in Drive/OD
  44. P 028 code AND overheating?
  45. 96 Deville Waterpump belt removal
  46. Is my car misfiring?
  47. Misfire Woes
  48. Another pressure test update
  49. Can dex-cool replace green anti-f?
  50. more head gasket headaches
  51. Egr
  52. More pressure test questions
  53. Nice job on headbolt quality control
  54. 4.0 to 4.6 swap ?
  55. BBOB - did the press test/overheating/????
  56. Timesert kit needed
  57. Tapping Lifters at start
  58. Northstar Gasket Replacement $?
  59. coil packs on 93 ETC?
  60. Eating Oil.......
  61. Eror code p0153
  62. ac only blows worm air
  63. air intake pro's & cons
  64. Brand new N*...
  65. 1997 Seville - Tranny
  66. Head gasket progress/ performance?
  67. Bbob - Tranny Oil Cooler Line Quest.
  68. Eldo idle and low speed running ODD- HELP!
  69. 93 Northstar using 5w-30 ?
  70. Cleaning Engine
  71. when do the fans come on?
  72. Fun with lifters
  73. How badly stripped was your block?
  74. 96 cadillac deville troubles !!!!
  75. Starting Problems- 95 SLS
  76. Fuel Consumption-Tornado Fuel Saver
  77. my s/c 98 sts wow
  78. MSD DIS-4 and/or Interface modules??
  79. Any info on shift improvement kit for 4T80E?
  80. Need a time-sert kit!
  81. Intermittent VSS!!
  82. Lots of exhaust smoke-95 SLS
  83. Who actually designed the Northstar what's his name?
  84. Do N* heads crack EVER?
  85. New Exhaust
  86. Head Studs?
  87. Removing pully?
  88. White "burned" spark plugs?
  89. What Oil?
  90. Variable Valve Northstar question
  91. HELP!! '96 Deville Starting Problem
  92. Nitrous Wet Or Dry???
  93. Help! 94 Concors
  94. !996 Cadillac Deville Exhaust Smoke Problem
  95. RPM steadily increasing (93 N*)
  96. starter
  97. Opinions on head gaskets vs. engine swap?
  98. Water pump 'sound'?
  99. 10% alcohol fuel...bad news
  100. Needed ASAP:Fuel pump replacement for 1996 Deville
  101. Post Tune-Up questions
  102. Half case leak check
  103. o2 Sensor Help
  104. Throttle Body?- 95 SLS
  105. HELP! 5-6 sec. Cold Starts
  106. My car is about to get sold.
  107. Advice on engine miss and motor mount
  108. 1996 Eldorado ETC overheating.
  109. Spark Plug question for N*
  110. 92 cadillac deville won't start
  111. Timecerts pulled out !
  112. Fuel rail recall expanded
  113. 97 overheating update/helms/questions
  114. Identifing a part (1993 STS - N*)
  115. Dealer Says I Need A New Engine: PLEASE HELP
  116. P0441 Whats this caused by?
  117. Leaking Head gasket cause miss at idle?
  118. from active 2 passive shocks
  119. Water pump belt
  120. Throttle Body Question
  121. need trouble code definitions
  122. Dtc P0503 1520 And Transmission Slip
  123. My 97 Deville is hard to start only when cold
  124. Fuel Gauge Damage by High Sulphur Content
  125. Aurora specs-parts?
  126. Coolant type HELP!!!!
  127. Sources for water pump pulley puller/installer
  128. Stupid muffler question!!!
  129. Differences between the VIN 9 and Y
  130. Northstar overheating
  131. Performance mufflers reliability
  132. Oil pressure sensor on Northstar
  133. How many miles on your N*?
  134. Mobil 1 Now Required ??
  135. is the northstar junk?
  136. 98 STS Staled Out! and wont start.
  137. North* pros and cons?
  138. STS Engine installed IMPECCABLE JOB!!!
  139. Thanks on the 97 overheating
  140. Towing with a STS...
  141. 97 eldo missfiring
  142. North* oil pan removal ELDO ETC
  143. Throttle Body
  144. Northsatr question (years)
  145. 1999 Caddy stalls while driving
  146. Misfire and P046
  147. 94' SLS oil leak?
  148. 02 Deville keeps dying...please help!
  149. radiator replacement
  150. PCM code p039
  151. 97 ETC overheating questions
  152. Bars Leak "Oil additive" not Coolant!!
  153. WTF? Intake Manifold Noise?
  154. Northstar main cap bolts
  155. 2002 Deville poor gas mileage
  156. best repair manual for 97 eldo
  157. who fixes your caddy?
  158. plug wires 97 etc
  159. N* Summer Maintenence
  160. transaxle shift relays?
  161. northstar as a plane engine?
  162. How does the PCM know what gear it's in?
  163. Screwed up water pump
  164. Head gasket price/strategy?
  165. TCC stuck OFF
  166. waterpump
  167. 97 ETC overheating
  168. Changing Coolant and the Right Number of Tablets
  169. Shh, it happened! then starting with 2 simple questions...
  170. Mid-grade fuel?
  171. North* easy tune up
  172. more top end speed
  173. My New 94 Eldorado
  174. Starts fine when cold, hesitates when warm...
  175. Northstar using unleaded fuel?
  176. It's Alive again
  177. Need water pump help ASAP!!
  178. Changing final gear ratio
  179. Changing '96 head gaskets....What else?
  180. Problem with RSS
  181. fuel pump pressure
  182. No heat inside the car
  183. Engine Coolant Change out
  184. Coolant question, 4.6 northstar
  185. Intake/Fuel Problem?
  186. Galloping Goose
  187. Engine Mountings 98 STS
  188. Which Brand Spark Plug is the best for 98 Deville?
  189. Redrilled cam sprockets vs aftermarket cams
  190. Dyno2000 Northstar File
  191. Procedure for removing and replacing heater core
  192. Pcm?
  193. Baffle Plat.. Bad design in older N*
  194. Motor Mounts for 97 sts
  195. N* & Mityvac Fluid Evacuator?
  196. Attn Phil!!!!
  197. north swap
  198. Mods for my 93 STS????
  199. Need to know ASAP: # of bellhousing bolts
  200. Gray exhaust smoke - '96 SLS
  201. '94 Northstar Rebuild--Need Specs.. Help?
  202. Mounts and Shocks
  203. Oil Consumption with the Northstar - any problems?
  204. Bonneville GPX/Northstar
  205. Question on switching from Premium to Ethanol Blended gas
  206. Cold driveability problem - '96 SLS LD8 128K
  207. 120 Mph Speed Limit??????
  208. Thoughts on "Royal Purple" oil ?
  209. Better mileage on regular?!?
  210. 112 mph limiter
  211. Air Filter box - more air???
  212. is WOT mandatory for a deville 2000
  213. Specified Northstar Max RPM Vs. Actual on Tach
  214. Coolant Capacity for 97 DeVille?
  215. Check out the codes in my 97 Deville... what do they mean ?
  216. Fleetwood Fuel Pump
  217. Engine Locked Up!!!!!!!!!!!! Neeed Help!!!!....please
  218. It's Aliiive! *evil cackle*
  219. Bad Fuel Pressure regulator ?
  220. 96 Eldo overheating
  221. trans/motor mounts
  222. Help with Intake cover & gasket
  223. Starter problems on my 94 N*
  224. N* Head Milling Machining
  225. Tricks to Change Fuel Pump 97 STS??
  226. Coolant problem - please help!!!
  227. 95 Aurora hard to start !!
  228. Just bought my Caddy, need help !!! PLEASE !!!
  229. Compression Test for Head Gasket Leak
  230. 95,sts cooling ????
  231. What Went Wrong ???
  232. Coolant pellets, how often?
  233. 94 ENGINE fit a 98??
  234. error sorry
  235. i got my n*
  236. JB metalweld
  237. Friends Used 1999 DeVille
  238. N* Rear Headgasket - replace in the car?
  239. wood grain steering wheel
  240. replacing cams on N*
  241. How do you explain the northstar's short comings?
  242. Easy Serpentine Belt Threading
  243. 96 STS Service Emissions System Service Engine Light
  244. radiator fans?
  245. Missing?
  246. Plugs and Plug Wires
  247. Headgasket - How long, how much?
  248. 97 Deville: Digital Fuel Gauge Problem
  249. After WOT engine started missing.
  250. RWD Northstar(s)?