: Northstar Engines and System Technical Discussion



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