View Full Version : Northstar Performance and Technical Discussion


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