: Northstar Engines and System Technical Discussion



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  1. Please help..engine coolant ?....
  2. Traction Control on STS ???
  3. 96 Seville, Check Engine Light, New owner?
  4. Help with cooling system
  5. ? on seville northstar motor?
  6. Help! I have a 1997 Concours(traction c) I would love to know where this wire goes??
  7. maintenence records?
  8. rear windows fog up
  9. Northstar - Golf swap
  10. PCM codes
  11. 1997 Deville problems
  12. Smelling Coolant inside - 93 STS
  13. Battery Replacement on 95 STS
  14. Service Brake Fluid Switch
  15. Transmition shifting ?'s
  16. Engine cutout 93STS north*
  17. Oil Life Message Problem
  18. Can I get some pictures (N* mounting)?
  19. OBD codes
  20. 95-sts wont start
  21. idle sts-95
  22. Anyone know where I can find cheap o2 sensors?!
  23. So....someone wanna rent me a timesert kit?
  24. Ignition module failure?
  25. Need help understanding a code
  26. Best oil for Northstar engines?
  27. Northstar questions: engine and tranny mounts
  28. Service Engine Light
  29. Idle speed
  30. Intermitant DTC P1416, where do I start looking?
  31. phenolic spacers cleaning
  32. Regular Unleaded
  33. Throttle Body
  34. 97 Concours....SOLD!
  35. Help Codes
  36. Thermostat
  37. 4.0/4.6 Combustion Chambers
  38. Intake air sensor / resistor mod
  39. valve job? something burning......
  40. Easy method of telling you need a coolant change!!!!!
  41. 97 dedan deville speedometer display out...
  42. 4.6L engine knock at idle
  43. High Performance driving
  44. Starting Issue
  45. High octane
  46. 4.6L engine knock at idle
  47. Headgaskets
  48. hard starting, won't pass smog symptoms
  49. Info on converter lock,,code PO39
  50. Northstar engine numbers
  51. Locking converter/check engine SOON
  52. How to replace front motor MOUNT
  53. can any one help
  54. Motor Rocks
  55. Torque converter lockup?
  56. Help!
  57. Regular Gas
  58. Nitrous Kit for Northstars - It exists
  59. why do people tell me northstars are junk?
  60. Coolant Loss
  61. VERY slight valve knock on '98 STS Northstar?
  62. Won't shift out of 1st gear
  63. Let's get some performance parts!
  64. Just how fragile are they?
  65. experienced mechanic in Los Angeles
  66. RWD 5-speeds
  67. Let's get an OBD Programmer...
  68. Limiters on 96 STS
  69. 1996 northstar in 95 eldorado - Strange things happening!
  70. Technical Photo Section?
  71. service engine light is on
  72. engine compatibility
  73. code help please
  74. 99' STS low-end torque is sluggish?
  75. Blessed With Head Gasket Leakage as Well...
  76. timesert kit
  77. performance pcm/ecu mods ODB II (96+ ) (i.e. 1999 sts)
  78. Can the 300 HP be swapped with 275 HP motor?
  79. North star motor swap
  80. Diagnostic codes and running rough
  81. cam timing tool
  82. Hard Shifting Transmision
  83. Squeek, scrape, whir.
  84. transmission removal in 94 eldorado???
  85. 2001 seville sparkplug location
  86. need advice-- cooling
  87. engine removal and install procedures
  88. Temperature problem???
  89. Starter replacement, what is the easiest way?
  90. Bearings?
  91. are northstars interferene engines?
  92. northstar head warpage?
  93. "LOW ENGINE COOLANT" came on...
  94. timeserts
  95. Northstar idle speed motor instsall
  96. Rss (c)1743, 1783, 1785 ??
  97. 4T80E drain plug location?
  98. Missfire 93 sts
  99. Idle is higher than normal and fluctuates
  100. STS 13:63, you ask how?
  101. Ok I can check my codes but how do you check them individually?
  102. Cadillac Hot Rodders!
  103. Keyless Entry Programming Procedure
  104. How to change Trans. Fluid?
  105. Borla exhaust needs your help
  106. Where's the Chip?
  107. Battery No Charge light on/ Alternator?
  108. New Owner Can I work on My Seville N* myself? Is it too electronic?
  109. northstars
  110. I am New here
  111. spark plug wires
  112. Sudden Stall
  113. What would you do? (fun project)
  114. Problems that were fixed (technical question)
  115. Waterpump Replacement
  116. I broke it!!
  117. 1999 Caddy Seville Sts
  118. High Mileage Northstar Thread: Who can beat me?
  119. 120,000 Miles on a Northstar?
  120. Rusted Fuel Filter
  121. Need some technical help/ suggestions from guys that know!!
  122. turbo for a northstar?
  123. Difference in 275HP & 300HP Engines
  124. Heads
  125. What size rims ....... (technical info)
  126. 95 SLS how to check coolant levels?
  127. Looking for Time sert kit
  128. Mobil 1 Synthetic Oil
  129. Screen in the intake system
  130. 100,000+ questions
  131. PVC Valve and Fuel Filter
  132. how to seperate the trans form the motor etc
  133. Ways to tell if your northstar motor is blown........look
  134. General Deville Maintenance
  135. New street rodder issue has N* Part 2!
  136. Need supporting info RE: 4.6 head bolts
  137. Northstar motor blown at 80,000 help...........
  138. Throttel Body Plate Size ???
  139. Caddy transplant
  140. 00 - 03 Seville questions:
  141. Northstar oil burning - what to do?
  142. That Coolant thing...
  143. B1136
  144. Allante losing coolant via bypass
  145. 2000 Dts - Rough Idle
  146. Resetting Change Oil Message
  147. finally made a few mods to the STS
  148. Knock sensor blues!!!
  149. Emission Message
  150. New Struts? When to replace them.
  151. Oil
  152. STSi heads availability
  153. seeping head gasket
  154. Premium Fuel
  155. just wanted to say hi to everyone!!!!!
  156. NOS on northstar??
  157. engine squeeking
  158. Engine Problems?
  159. Engine/Coolant Temp?
  160. How much to rebuild a northstar?
  161. Is there a SLS/STS performance chip/programer yet?
  162. how to turn off tractin
  163. "Check Oil Level"
  164. coolant color
  165. Firing order-
  166. engine miss
  167. North* with a manual?????
  168. Gasoline question
  169. sls tranny problem
  170. Hot Rod Caddy or LS1?
  171. upper motor mount part numbers?
  172. Cooling system sealants....
  173. A word about air filters
  174. Some Interesting facts...
  175. Transmission valve box?
  176. SES light
  177. Northstar STS story
  178. Clearing codes
  179. Oil in Coolant
  180. Is it just me, or did they use a shoehorn to get the N'Star under the hood of my STS?
  181. 2K 4.6 NS- No worries or no probs mentioned YET??
  182. Intermittent Hesitation
  183. Hey guys..quick question!
  184. How Strong is the Northstar Bottom End?
  185. tranny slipage on 97 deville
  186. Northstar 4.0L seems a little hot. Removed Thermostat. Bad Idea?
  187. Operating Temp??????
  188. Maintain Cooling system?
  189. Northstar Pull Question
  190. cracked spark plug
  191. 98+ Seville Free cold air intake mod
  192. Clearing Codes
  193. Check Coolent Level Keeps showing up
  194. blown headgasket
  195. 1994 Concours Transmission Question
  196. burned exhaust valve's ?!?!
  197. The Northstar Issue
  198. Head gasket or??? HELP Plz
  199. My 1997 ETC
  200. Nitrous Systems
  201. anyone with subscription, willing to run carfax for me?
  202. fuel rail
  203. Cadillac 32v Northstar 1993
  204. 98 Concours
  205. Blown head gasket
  206. Stabilzer Links
  207. Northstar Motor Intakes
  208. Rebuilding my Northstar please help!
  209. hot weather and hot northstar..HELP!
  210. 94 SLS Radiator
  211. Unusual Howling noise.
  212. Northstar Heating Up
  213. Throttle Body Bypass
  214. Ignition coil or ignition module ?
  215. stupid POS Alternator!!!
  216. a/c compressor/ clutch removal-install
  217. Cooling Fan Relay Location
  218. Tranny code P0741 & P1860
  219. Eldorado ?
  220. water pump pulley
  221. What can I do to push my '93 Eldo to the max?
  222. Northstar rods
  223. Interesting data
  224. Pic of STS removed resonator with chrome plug
  225. Gold vs. Silver On Northstar? Huh?
  226. 1993 - 1995 Northstar Chip Mods
  227. motor swap
  228. limp home mode
  229. Sealant tabs
  230. go fast parts
  231. Water Leakage
  232. Increase 96-03 Cadillac performance $1200
  233. Free mods?
  234. How to Diagnose
  235. electric fan override?
  236. Northstar Intake Cover
  237. Oil Life indicator
  238. Going to the 1/4 track in June. Suggestions?
  239. 2000 Cadillac stalling
  240. Free HP
  241. Anyone know if they make a NOS system?
  242. Key programming
  243. Accessing the OBD2 in your caddi
  244. Lucky ME! A workable dealer!
  245. Overheating Northstar
  246. Changing Spark plugs and Spark plug wires (Tuneup)
  247. Electronic Headache
  248. Northstar Oil Consumption
  249. How to get at the starter?
  250. Performance Chip on Ebay