: Northstar Engines and System Technical Discussion



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