: Northstar Engines and System Technical Discussion



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  1. Where is it all?
  2. Will I suck her dry if....
  3. Shift Solenoid Kit Pics of Parts!!!!
  4. About to kick my caddy
  5. 98 STS Has DIC That Still Registers 100% Trans Fluid Life
  6. Northstar missing at idle
  7. Fuel Rail Leak on 98 Deville!!!
  8. Best Bar's Leak...C16 Liquid
  9. To replace or repair the n. star
  10. 97 Deville Question
  11. northstar extended warranty
  12. Noticeably Better Gas Mileage..On 10 yr old+ Engine!?
  13. Gas miles -- Standard DeVille vs DTS
  14. Changing out Fuel Rail??
  15. intake manifold bolt torque?
  16. Strange Things Happing
  17. Gas pedal click
  18. Starting to get rough idle
  19. Fixin' to pull the engine
  20. Head Gasket Leak : NO OVERHEAT with coolant supplement
  21. TPS replacement problem
  22. Fuel Leak
  23. Northstar transplant and electronics
  24. Best way to prevent an oil leak on N*?
  25. 180F or 195F Thermostat for 94 N*?
  26. Misfiring and Service Engine light
  27. Coils / Intermittent "missing" on my 99 STS
  28. Hey Hotrodelectric
  29. Northstar Expectancy
  30. Code P094 Shift A Solenoid Speed Sensor Where and what is it 94 Concours?
  31. Ac
  32. Apparent Coolant Leak Below Water Pump
  33. What makes the Headgaskets go so often on early N*s?
  34. Engine Service Soon light on but no codes??? 94 Concours
  35. Perfect exahust flow for 1999 STS?
  36. 94 N* Eldo - Thought was Head Gasket! WAS NOT! My experience!
  37. oil pressure or electrical problems?
  38. Starting Problem
  39. Coolant leak 94 Concours
  40. Bar's Leaks, block seal: Head Gasket Repair ???
  41. Starter problem with '97 STS
  42. Caddy Northstar LMP 4.0 turbo
  43. I can't drive 55 (very far)
  44. Coolant Spuing
  45. Block Drain Plug- Coolant 4.6L
  46. Vacuum Harness????
  47. Piston Slapping site
  48. Help Again Bbobynski !! - Tranny Codes
  49. ? on buying a northstar engine
  50. Improve gas mileage with water??? Stupid or Scientific?
  51. Major head gasket problem
  52. 4.6 liters 300hp... 2.0 liters 200hp
  53. OBD II computer
  54. a question
  55. Oxytane?
  56. What Engines Can I Use???
  57. Oil getting sucked in through PCV Valve: Old Mechanic's Tale?!
  58. Fuel Rail Leak
  59. Rotten Egg
  60. '95 eldo TC fuel smell in cabin & hard-start
  61. can i use marvel mystery oil?
  62. Pros/cons Of Waterwetter For Northstar
  63. Over Heat Feature
  64. Torque Convertor Viscous?
  65. Can't find IP, TC, PZ, RS code info
  66. P056 easy fix
  67. Northstar misfire and backfire
  68. Throttle body size question, and HEADERS-where can I find some?????
  69. 93-94 wrist pin problems????
  70. Brand New Northstar Engine For $2500
  71. gunning cadillacs...was it NOT worth it? :-\
  72. Intake Assembly
  73. can 94 interchange with one another.
  74. Back fire in the induction system
  75. Caddy won't go into Overdrive Any ideas?
  76. Fastchip vs Superchip ...
  77. Coolant temp 250 is this too high? No warnings and fans on low?
  78. 0-60 specs: 95' N* impressive
  79. Swaping A From Y To 9
  80. need help
  81. 2000 Dts 60k Service?!?!?
  82. Revised Emissions Woes
  83. Any GM/Cadillac certified mechanics on board? PLEASE HELP
  84. Chip for Eldo 95 LE
  85. 97 SLS Stalls Only On Hot Days
  86. Throttle body cleaning question
  87. Oil Pan Gasket Change
  88. Who agrees that the Northstar is due for an overhaul by Cadillac?
  89. High Speed fan switch not working/working well
  90. 94 concours has no warning info messages!!!!
  91. Reasons for a/c compressor inop ?
  92. Q. for anyone who knows re: FWD N* - Why Transverse?
  93. 93 seville driving on its own
  94. engine temp?
  95. Down To The Wire: last minute thoughts please
  96. where are the 25 horses
  97. North * reliability?
  98. "Induction Performance Service"?
  99. How do I know if I need the computer updated?
  100. Oil Pressure Drop
  101. ? for those with aftermarket intakes
  102. Coolant Overflow
  103. gunning cadillacs...is it worth it?
  104. 96 Eldorado heating up...
  105. 1994 Eldorado 4.6L Tapping Noise
  106. Cooling Temps.
  107. Hard shift outta 1st
  108. "Weeping" Head Gasket
  109. Obd1
  110. Help With Code 39 Tcc Off
  111. Idle Problems
  112. squeak on 97 deville
  113. crate 2000 Northstar in a 59 Chevy Suburban
  114. cold start/warm start
  115. 1994 SLS 4.6 Oil Pressure Switch Woes
  116. Colours
  117. Odd Tune Up Question
  118. P0741 TCC stuck off
  119. Pre 2000 Northstars
  120. ShadowLvr400
  121. Replace transaxle seals or not?
  122. Vacuum line routing?
  123. Bobynski!
  124. need rebuilt short block-Northstar
  125. aftermarket CPU ???
  126. 2001 deville go fast parts ???
  127. EGR Pintle Stuck????
  128. High Temps?
  129. Gear Shift Position Indicator 1994 STS
  130. Misfire/hesitation
  131. Race day mods?
  132. 97 Sedan Deville oil change
  133. motor idles eratically at start and then dies
  134. Low Oil Pressure 1994 SLS 4.6 144k
  135. Right or left, Help Please!!!
  136. Need Code Info
  137. 1996 sts need help won't start
  138. Engine crud @ head gasket repair
  139. One fan or two?
  140. Failed emissions....plugs and wires...?
  141. General Questoin
  142. Overheating --- Still!!!!!!!!
  143. What are these trouble codes? Help!
  144. AAARRRGHHH...Where's the #$@#) switch?!?!
  145. Help! Dealer wants $$ for recall fuel rail!
  146. Very Long, EBTCM
  147. Northstar Maintenance -Tune Up
  148. K&N filters
  149. Check engine soon ! Why ?
  150. Waterpump reliability
  151. No one can figure it out!!! Help!!!
  152. In need of expertise
  153. SC44 and SC55
  154. why are the northstar engines always catching on fire?
  155. where can i find a 4.6 northstar engine for a 94 eldorado touring coupe. vin 9
  156. 4.9L NorthStar Performance Upgrades???
  157. Need new/rebuilt '96 Seville engine
  158. 100K warranty
  159. Noise from PS pump.
  160. Wanted!! '00+ rear tranny mount
  161. PO 441 error
  162. Help!!
  163. Rubber gone in the top motor mounts
  164. Stop Engine Low oil pressure
  165. Help with fixing a broken shift solenoid
  166. Tranny detent cable question
  167. po29????
  168. '96 STS Engine Stalling - Possible Electrical Problem?
  169. It's time to tear into her!!
  170. Codes PC0300, PC1139, PZ2719
  171. Crack my Block!!!!!!
  172. "Y" code vs. "9" Code
  173. Northstar 97 sls was hard 2 start--now no start
  174. 1997 Seville STS - Oil Leak Problems?
  175. 130k gaskets vs. 88k transplant
  176. Unlimited funds....almost
  177. Service Emissions System
  178. air plenum and coolant...
  179. error codes p0113 &503
  180. Computer codes and more help wanted
  181. coolant and A/C fans broken blades & mounting arms
  182. 1996 Sedan Deville Knock Sensor
  183. Newbie needs help
  184. frozen serpentine belt tensioner
  185. New Northstar, Unleaded or Premium?
  186. Want to buy northstar coils...
  187. Northstar indicates overheat
  188. BBOB - North* Oil Usage Comment
  189. Bad Cylinder?? Low compression?? Need help.
  190. Steam Engine, Now What?
  191. Zero Oil Pressure!! HELP!!
  192. INtake Manifold
  193. N*, Gas drowning my cylinder, getting smoke
  194. 2 Trans oil purge questions...or more?
  195. Erratic Throttle
  196. Strange Readings 1994 Deville Concourse N*
  197. What would a gas coating on a plug mean?
  198. BBOB - thermostat?
  199. Steam from Tail Pipe?
  200. exhaust questions
  201. water pump tool
  202. Cluster Question - Low Oil Pressure
  203. Limp home mode?
  204. Flowmasters?
  205. Flexplate to Torque converter - loctite??
  206. "Check Oil Level" message question
  207. hole in aluminum Radiator - help wanted
  208. Help Eldo Completely Dead But Batt.has Voltage
  209. Rough Idle...Sluggish Acceleration....
  210. Trouble codes
  211. P0741 - TCC System Stuck Off ???
  212. Clueless N* owners with 4 codes
  213. A P059 code?
  214. Longevity of the N* timing chain nylon tensioner pads ?
  215. What type of Power Steering fluid to use in 93 N* Eldo ?
  216. Limp Home Feature?
  217. Last pressure test update - hopefully!!!
  218. How important (really) is an oil cooler?
  219. Cascading multi-module failure-BBOB?
  220. Hesitation when a/c is on?
  221. PCV valve location 2003 Deville
  222. 4T80E Trans neutraling out in Drive/OD
  223. P 028 code AND overheating?
  224. 96 Deville Waterpump belt removal
  225. Is my car misfiring?
  226. Misfire Woes
  227. Another pressure test update
  228. Can dex-cool replace green anti-f?
  229. more head gasket headaches
  230. Egr
  231. More pressure test questions
  232. Nice job on headbolt quality control
  233. 4.0 to 4.6 swap ?
  234. BBOB - did the press test/overheating/????
  235. Timesert kit needed
  236. Tapping Lifters at start
  237. Northstar Gasket Replacement $?
  238. coil packs on 93 ETC?
  239. Eating Oil.......
  240. Eror code p0153
  241. ac only blows worm air
  242. air intake pro's & cons
  243. Brand new N*...
  244. 1997 Seville - Tranny
  245. Head gasket progress/ performance?
  246. Bbob - Tranny Oil Cooler Line Quest.
  247. Eldo idle and low speed running ODD- HELP!
  248. 93 Northstar using 5w-30 ?
  249. Cleaning Engine
  250. when do the fans come on?