: Northstar Engines and System Technical Discussion



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  1. Northstar Expectancy
  2. Code P094 Shift A Solenoid Speed Sensor Where and what is it 94 Concours?
  3. Ac
  4. Apparent Coolant Leak Below Water Pump
  5. What makes the Headgaskets go so often on early N*s?
  6. Engine Service Soon light on but no codes??? 94 Concours
  7. Perfect exahust flow for 1999 STS?
  8. 94 N* Eldo - Thought was Head Gasket! WAS NOT! My experience!
  9. oil pressure or electrical problems?
  10. Starting Problem
  11. Coolant leak 94 Concours
  12. Bar's Leaks, block seal: Head Gasket Repair ???
  13. Starter problem with '97 STS
  14. Caddy Northstar LMP 4.0 turbo
  15. I can't drive 55 (very far)
  16. Coolant Spuing
  17. Block Drain Plug- Coolant 4.6L
  18. Vacuum Harness????
  19. Piston Slapping site
  20. Help Again Bbobynski !! - Tranny Codes
  21. ? on buying a northstar engine
  22. Improve gas mileage with water??? Stupid or Scientific?
  23. Major head gasket problem
  24. 4.6 liters 300hp... 2.0 liters 200hp
  25. OBD II computer
  26. a question
  27. Oxytane?
  28. What Engines Can I Use???
  29. Oil getting sucked in through PCV Valve: Old Mechanic's Tale?!
  30. Fuel Rail Leak
  31. Rotten Egg
  32. '95 eldo TC fuel smell in cabin & hard-start
  33. can i use marvel mystery oil?
  34. Pros/cons Of Waterwetter For Northstar
  35. Over Heat Feature
  36. Torque Convertor Viscous?
  37. Can't find IP, TC, PZ, RS code info
  38. P056 easy fix
  39. Northstar misfire and backfire
  40. Throttle body size question, and HEADERS-where can I find some?????
  41. 93-94 wrist pin problems????
  42. Brand New Northstar Engine For $2500
  43. gunning cadillacs...was it NOT worth it? :-\
  44. Intake Assembly
  45. can 94 interchange with one another.
  46. Back fire in the induction system
  47. Caddy won't go into Overdrive Any ideas?
  48. Fastchip vs Superchip ...
  49. Coolant temp 250 is this too high? No warnings and fans on low?
  50. 0-60 specs: 95' N* impressive
  51. Swaping A From Y To 9
  52. need help
  53. 2000 Dts 60k Service?!?!?
  54. Revised Emissions Woes
  55. Any GM/Cadillac certified mechanics on board? PLEASE HELP
  56. Chip for Eldo 95 LE
  57. 97 SLS Stalls Only On Hot Days
  58. Throttle body cleaning question
  59. Oil Pan Gasket Change
  60. Who agrees that the Northstar is due for an overhaul by Cadillac?
  61. High Speed fan switch not working/working well
  62. 94 concours has no warning info messages!!!!
  63. Reasons for a/c compressor inop ?
  64. Q. for anyone who knows re: FWD N* - Why Transverse?
  65. 93 seville driving on its own
  66. engine temp?
  67. Down To The Wire: last minute thoughts please
  68. where are the 25 horses
  69. North * reliability?
  70. "Induction Performance Service"?
  71. How do I know if I need the computer updated?
  72. Oil Pressure Drop
  73. ? for those with aftermarket intakes
  74. Coolant Overflow
  75. gunning cadillacs...is it worth it?
  76. 96 Eldorado heating up...
  77. 1994 Eldorado 4.6L Tapping Noise
  78. Cooling Temps.
  79. Hard shift outta 1st
  80. "Weeping" Head Gasket
  81. Obd1
  82. Help With Code 39 Tcc Off
  83. Idle Problems
  84. squeak on 97 deville
  85. crate 2000 Northstar in a 59 Chevy Suburban
  86. cold start/warm start
  87. 1994 SLS 4.6 Oil Pressure Switch Woes
  88. Colours
  89. Odd Tune Up Question
  90. P0741 TCC stuck off
  91. Pre 2000 Northstars
  92. ShadowLvr400
  93. Replace transaxle seals or not?
  94. Vacuum line routing?
  95. Bobynski!
  96. need rebuilt short block-Northstar
  97. aftermarket CPU ???
  98. 2001 deville go fast parts ???
  99. EGR Pintle Stuck????
  100. High Temps?
  101. Gear Shift Position Indicator 1994 STS
  102. Misfire/hesitation
  103. Race day mods?
  104. 97 Sedan Deville oil change
  105. motor idles eratically at start and then dies
  106. Low Oil Pressure 1994 SLS 4.6 144k
  107. Right or left, Help Please!!!
  108. Need Code Info
  109. 1996 sts need help won't start
  110. Engine crud @ head gasket repair
  111. One fan or two?
  112. Failed emissions....plugs and wires...?
  113. General Questoin
  114. Overheating --- Still!!!!!!!!
  115. What are these trouble codes? Help!
  116. AAARRRGHHH...Where's the #$@#) switch?!?!
  117. Help! Dealer wants $$ for recall fuel rail!
  118. Very Long, EBTCM
  119. Northstar Maintenance -Tune Up
  120. K&N filters
  121. Check engine soon ! Why ?
  122. Waterpump reliability
  123. No one can figure it out!!! Help!!!
  124. In need of expertise
  125. SC44 and SC55
  126. why are the northstar engines always catching on fire?
  127. where can i find a 4.6 northstar engine for a 94 eldorado touring coupe. vin 9
  128. 4.9L NorthStar Performance Upgrades???
  129. Need new/rebuilt '96 Seville engine
  130. 100K warranty
  131. Noise from PS pump.
  132. Wanted!! '00+ rear tranny mount
  133. PO 441 error
  134. Help!!
  135. Rubber gone in the top motor mounts
  136. Stop Engine Low oil pressure
  137. Help with fixing a broken shift solenoid
  138. Tranny detent cable question
  139. po29????
  140. '96 STS Engine Stalling - Possible Electrical Problem?
  141. It's time to tear into her!!
  142. Codes PC0300, PC1139, PZ2719
  143. Crack my Block!!!!!!
  144. "Y" code vs. "9" Code
  145. Northstar 97 sls was hard 2 start--now no start
  146. 1997 Seville STS - Oil Leak Problems?
  147. 130k gaskets vs. 88k transplant
  148. Unlimited funds....almost
  149. Service Emissions System
  150. air plenum and coolant...
  151. error codes p0113 &503
  152. Computer codes and more help wanted
  153. coolant and A/C fans broken blades & mounting arms
  154. 1996 Sedan Deville Knock Sensor
  155. Newbie needs help
  156. frozen serpentine belt tensioner
  157. New Northstar, Unleaded or Premium?
  158. Want to buy northstar coils...
  159. Northstar indicates overheat
  160. BBOB - North* Oil Usage Comment
  161. Bad Cylinder?? Low compression?? Need help.
  162. Steam Engine, Now What?
  163. Zero Oil Pressure!! HELP!!
  164. INtake Manifold
  165. N*, Gas drowning my cylinder, getting smoke
  166. 2 Trans oil purge questions...or more?
  167. Erratic Throttle
  168. Strange Readings 1994 Deville Concourse N*
  169. What would a gas coating on a plug mean?
  170. BBOB - thermostat?
  171. Steam from Tail Pipe?
  172. exhaust questions
  173. water pump tool
  174. Cluster Question - Low Oil Pressure
  175. Limp home mode?
  176. Flowmasters?
  177. Flexplate to Torque converter - loctite??
  178. "Check Oil Level" message question
  179. hole in aluminum Radiator - help wanted
  180. Help Eldo Completely Dead But Batt.has Voltage
  181. Rough Idle...Sluggish Acceleration....
  182. Trouble codes
  183. P0741 - TCC System Stuck Off ???
  184. Clueless N* owners with 4 codes
  185. A P059 code?
  186. Longevity of the N* timing chain nylon tensioner pads ?
  187. What type of Power Steering fluid to use in 93 N* Eldo ?
  188. Limp Home Feature?
  189. Last pressure test update - hopefully!!!
  190. How important (really) is an oil cooler?
  191. Cascading multi-module failure-BBOB?
  192. Hesitation when a/c is on?
  193. PCV valve location 2003 Deville
  194. 4T80E Trans neutraling out in Drive/OD
  195. P 028 code AND overheating?
  196. 96 Deville Waterpump belt removal
  197. Is my car misfiring?
  198. Misfire Woes
  199. Another pressure test update
  200. Can dex-cool replace green anti-f?
  201. more head gasket headaches
  202. Egr
  203. More pressure test questions
  204. Nice job on headbolt quality control
  205. 4.0 to 4.6 swap ?
  206. BBOB - did the press test/overheating/????
  207. Timesert kit needed
  208. Tapping Lifters at start
  209. Northstar Gasket Replacement $?
  210. coil packs on 93 ETC?
  211. Eating Oil.......
  212. Eror code p0153
  213. ac only blows worm air
  214. air intake pro's & cons
  215. Brand new N*...
  216. 1997 Seville - Tranny
  217. Head gasket progress/ performance?
  218. Bbob - Tranny Oil Cooler Line Quest.
  219. Eldo idle and low speed running ODD- HELP!
  220. 93 Northstar using 5w-30 ?
  221. Cleaning Engine
  222. when do the fans come on?
  223. Fun with lifters
  224. How badly stripped was your block?
  225. 96 cadillac deville troubles !!!!
  226. Starting Problems- 95 SLS
  227. Fuel Consumption-Tornado Fuel Saver
  228. my s/c 98 sts wow
  229. MSD DIS-4 and/or Interface modules??
  230. Any info on shift improvement kit for 4T80E?
  231. Need a time-sert kit!
  232. Intermittent VSS!!
  233. Lots of exhaust smoke-95 SLS
  234. Who actually designed the Northstar what's his name?
  235. Do N* heads crack EVER?
  236. New Exhaust
  237. Head Studs?
  238. Removing pully?
  239. White "burned" spark plugs?
  240. What Oil?
  241. Variable Valve Northstar question
  242. HELP!! '96 Deville Starting Problem
  243. Nitrous Wet Or Dry???
  244. Help! 94 Concors
  245. !996 Cadillac Deville Exhaust Smoke Problem
  246. RPM steadily increasing (93 N*)
  247. starter
  248. Opinions on head gaskets vs. engine swap?
  249. Water pump 'sound'?
  250. 10% alcohol fuel...bad news