: Northstar Engines and System Technical Discussion



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  1. 98 STS Codes
  2. 1999 Deville , Code says convertor is not locking up
  3. 98 Sedan Deville-TRANS HOT-IDLE ENGINE
  4. How do I changes coolant hose
  5. Performance Air Intake Kits ?
  6. N2O in my '98 STS
  7. head gasket and maintainence
  8. 1996 Cadillac Seville running hot? (or not) help needed
  9. help! 2500 rpm idle
  10. I got the codes, now what?
  11. Evap Soleniod
  12. 94 Concours getting 13 MPG What could be wrong?
  13. pcv valve
  14. Oil Amount Debate, Do you put in 7.5 quarts or less at oil change?
  15. What is code p1645 mean
  16. Oil change and coolant
  17. CHanging the top-speed cut-out.
  18. how much extra HP will i get
  19. Used northstar
  20. 94 STS bogging and stalling?
  21. Overheating-head gaskets-screw it!!!
  22. ETC Crossover Leak
  23. Fuel Rail Recall Update
  24. Norstar governor
  25. 2005 Bonneville gets N*
  26. Fuel Rail Recall Missinformation
  27. Scan Tool Questions
  28. CARFAX (engine / car serial Numbers)
  29. Who has done a lot of mods to NS powered cars?
  30. Oxygen sensor problems
  31. All was fine until... hard cold start prob
  32. No orange light in Park, D, 2,1 in cluster on Concours?
  33. new 99 eng for 97 how much is different?
  34. 96 deville error codes P0147 and P0146, where do I look?
  35. po741 error shifting problem
  36. Leaking coolant
  37. Cat-back systems
  38. Throttle Body Cleaning
  39. coolant temp sensor
  40. carfaxing a used northstar
  41. Exhaust crossover
  42. 1994 sts 94K miles overheating
  43. Timesert kit for sale
  44. rough idle
  45. IPC lights ....out
  46. 96 sts transmission
  47. Fuel Rail Recall, just got the letter
  48. Changing That Water Pump Belt
  49. headgasket repairs
  50. Traction Control & a code.....
  51. newb looking for part numbers
  52. Solenoid/Valve Body/Trans Pan Pics!!!!!!!!
  53. Volant Air Intake
  54. Oil pressure check
  55. replacing my 96 northstar
  56. Where is it all?
  57. Will I suck her dry if....
  58. Shift Solenoid Kit Pics of Parts!!!!
  59. About to kick my caddy
  60. 98 STS Has DIC That Still Registers 100% Trans Fluid Life
  61. Northstar missing at idle
  62. Fuel Rail Leak on 98 Deville!!!
  63. Best Bar's Leak...C16 Liquid
  64. To replace or repair the n. star
  65. 97 Deville Question
  66. northstar extended warranty
  67. Noticeably Better Gas Mileage..On 10 yr old+ Engine!?
  68. Gas miles -- Standard DeVille vs DTS
  69. Changing out Fuel Rail??
  70. intake manifold bolt torque?
  71. Strange Things Happing
  72. Gas pedal click
  73. Starting to get rough idle
  74. Fixin' to pull the engine
  75. Head Gasket Leak : NO OVERHEAT with coolant supplement
  76. TPS replacement problem
  77. Fuel Leak
  78. Northstar transplant and electronics
  79. Best way to prevent an oil leak on N*?
  80. 180F or 195F Thermostat for 94 N*?
  81. Misfiring and Service Engine light
  82. Coils / Intermittent "missing" on my 99 STS
  83. Hey Hotrodelectric
  84. Northstar Expectancy
  85. Code P094 Shift A Solenoid Speed Sensor Where and what is it 94 Concours?
  86. Ac
  87. Apparent Coolant Leak Below Water Pump
  88. What makes the Headgaskets go so often on early N*s?
  89. Engine Service Soon light on but no codes??? 94 Concours
  90. Perfect exahust flow for 1999 STS?
  91. 94 N* Eldo - Thought was Head Gasket! WAS NOT! My experience!
  92. oil pressure or electrical problems?
  93. Starting Problem
  94. Coolant leak 94 Concours
  95. Bar's Leaks, block seal: Head Gasket Repair ???
  96. Starter problem with '97 STS
  97. Caddy Northstar LMP 4.0 turbo
  98. I can't drive 55 (very far)
  99. Coolant Spuing
  100. Block Drain Plug- Coolant 4.6L
  101. Vacuum Harness????
  102. Piston Slapping site
  103. Help Again Bbobynski !! - Tranny Codes
  104. ? on buying a northstar engine
  105. Improve gas mileage with water??? Stupid or Scientific?
  106. Major head gasket problem
  107. 4.6 liters 300hp... 2.0 liters 200hp
  108. OBD II computer
  109. a question
  110. Oxytane?
  111. What Engines Can I Use???
  112. Oil getting sucked in through PCV Valve: Old Mechanic's Tale?!
  113. Fuel Rail Leak
  114. Rotten Egg
  115. '95 eldo TC fuel smell in cabin & hard-start
  116. can i use marvel mystery oil?
  117. Pros/cons Of Waterwetter For Northstar
  118. Over Heat Feature
  119. Torque Convertor Viscous?
  120. Can't find IP, TC, PZ, RS code info
  121. P056 easy fix
  122. Northstar misfire and backfire
  123. Throttle body size question, and HEADERS-where can I find some?????
  124. 93-94 wrist pin problems????
  125. Brand New Northstar Engine For $2500
  126. gunning cadillacs...was it NOT worth it? :-\
  127. Intake Assembly
  128. can 94 interchange with one another.
  129. Back fire in the induction system
  130. Caddy won't go into Overdrive Any ideas?
  131. Fastchip vs Superchip ...
  132. Coolant temp 250 is this too high? No warnings and fans on low?
  133. 0-60 specs: 95' N* impressive
  134. Swaping A From Y To 9
  135. need help
  136. 2000 Dts 60k Service?!?!?
  137. Revised Emissions Woes
  138. Any GM/Cadillac certified mechanics on board? PLEASE HELP
  139. Chip for Eldo 95 LE
  140. 97 SLS Stalls Only On Hot Days
  141. Throttle body cleaning question
  142. Oil Pan Gasket Change
  143. Who agrees that the Northstar is due for an overhaul by Cadillac?
  144. High Speed fan switch not working/working well
  145. 94 concours has no warning info messages!!!!
  146. Reasons for a/c compressor inop ?
  147. Q. for anyone who knows re: FWD N* - Why Transverse?
  148. 93 seville driving on its own
  149. engine temp?
  150. Down To The Wire: last minute thoughts please
  151. where are the 25 horses
  152. North * reliability?
  153. "Induction Performance Service"?
  154. How do I know if I need the computer updated?
  155. Oil Pressure Drop
  156. ? for those with aftermarket intakes
  157. Coolant Overflow
  158. gunning cadillacs...is it worth it?
  159. 96 Eldorado heating up...
  160. 1994 Eldorado 4.6L Tapping Noise
  161. Cooling Temps.
  162. Hard shift outta 1st
  163. "Weeping" Head Gasket
  164. Obd1
  165. Help With Code 39 Tcc Off
  166. Idle Problems
  167. squeak on 97 deville
  168. crate 2000 Northstar in a 59 Chevy Suburban
  169. cold start/warm start
  170. 1994 SLS 4.6 Oil Pressure Switch Woes
  171. Colours
  172. Odd Tune Up Question
  173. P0741 TCC stuck off
  174. Pre 2000 Northstars
  175. ShadowLvr400
  176. Replace transaxle seals or not?
  177. Vacuum line routing?
  178. Bobynski!
  179. need rebuilt short block-Northstar
  180. aftermarket CPU ???
  181. 2001 deville go fast parts ???
  182. EGR Pintle Stuck????
  183. High Temps?
  184. Gear Shift Position Indicator 1994 STS
  185. Misfire/hesitation
  186. Race day mods?
  187. 97 Sedan Deville oil change
  188. motor idles eratically at start and then dies
  189. Low Oil Pressure 1994 SLS 4.6 144k
  190. Right or left, Help Please!!!
  191. Need Code Info
  192. 1996 sts need help won't start
  193. Engine crud @ head gasket repair
  194. One fan or two?
  195. Failed emissions....plugs and wires...?
  196. General Questoin
  197. Overheating --- Still!!!!!!!!
  198. What are these trouble codes? Help!
  199. AAARRRGHHH...Where's the #$@#) switch?!?!
  200. Help! Dealer wants $$ for recall fuel rail!
  201. Very Long, EBTCM
  202. Northstar Maintenance -Tune Up
  203. K&N filters
  204. Check engine soon ! Why ?
  205. Waterpump reliability
  206. No one can figure it out!!! Help!!!
  207. In need of expertise
  208. SC44 and SC55
  209. why are the northstar engines always catching on fire?
  210. where can i find a 4.6 northstar engine for a 94 eldorado touring coupe. vin 9
  211. 4.9L NorthStar Performance Upgrades???
  212. Need new/rebuilt '96 Seville engine
  213. 100K warranty
  214. Noise from PS pump.
  215. Wanted!! '00+ rear tranny mount
  216. PO 441 error
  217. Help!!
  218. Rubber gone in the top motor mounts
  219. Stop Engine Low oil pressure
  220. Help with fixing a broken shift solenoid
  221. Tranny detent cable question
  222. po29????
  223. '96 STS Engine Stalling - Possible Electrical Problem?
  224. It's time to tear into her!!
  225. Codes PC0300, PC1139, PZ2719
  226. Crack my Block!!!!!!
  227. "Y" code vs. "9" Code
  228. Northstar 97 sls was hard 2 start--now no start
  229. 1997 Seville STS - Oil Leak Problems?
  230. 130k gaskets vs. 88k transplant
  231. Unlimited funds....almost
  232. Service Emissions System
  233. air plenum and coolant...
  234. error codes p0113 &503
  235. Computer codes and more help wanted
  236. coolant and A/C fans broken blades & mounting arms
  237. 1996 Sedan Deville Knock Sensor
  238. Newbie needs help
  239. frozen serpentine belt tensioner
  240. New Northstar, Unleaded or Premium?
  241. Want to buy northstar coils...
  242. Northstar indicates overheat
  243. BBOB - North* Oil Usage Comment
  244. Bad Cylinder?? Low compression?? Need help.
  245. Steam Engine, Now What?
  246. Zero Oil Pressure!! HELP!!
  247. INtake Manifold
  248. N*, Gas drowning my cylinder, getting smoke
  249. 2 Trans oil purge questions...or more?
  250. Erratic Throttle