: Northstar Engines and System Technical Discussion



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  1. valve job? something burning......
  2. Easy method of telling you need a coolant change!!!!!
  3. 97 dedan deville speedometer display out...
  4. 4.6L engine knock at idle
  5. High Performance driving
  6. Starting Issue
  7. High octane
  8. 4.6L engine knock at idle
  9. Headgaskets
  10. hard starting, won't pass smog symptoms
  11. Info on converter lock,,code PO39
  12. Northstar engine numbers
  13. Locking converter/check engine SOON
  14. How to replace front motor MOUNT
  15. can any one help
  16. Motor Rocks
  17. Torque converter lockup?
  18. Help!
  19. Regular Gas
  20. Nitrous Kit for Northstars - It exists
  21. why do people tell me northstars are junk?
  22. Coolant Loss
  23. VERY slight valve knock on '98 STS Northstar?
  24. Won't shift out of 1st gear
  25. Let's get some performance parts!
  26. Just how fragile are they?
  27. experienced mechanic in Los Angeles
  28. RWD 5-speeds
  29. Let's get an OBD Programmer...
  30. Limiters on 96 STS
  31. 1996 northstar in 95 eldorado - Strange things happening!
  32. Technical Photo Section?
  33. service engine light is on
  34. engine compatibility
  35. code help please
  36. 99' STS low-end torque is sluggish?
  37. Blessed With Head Gasket Leakage as Well...
  38. timesert kit
  39. performance pcm/ecu mods ODB II (96+ ) (i.e. 1999 sts)
  40. Can the 300 HP be swapped with 275 HP motor?
  41. North star motor swap
  42. Diagnostic codes and running rough
  43. cam timing tool
  44. Hard Shifting Transmision
  45. Squeek, scrape, whir.
  46. transmission removal in 94 eldorado???
  47. 2001 seville sparkplug location
  48. need advice-- cooling
  49. engine removal and install procedures
  50. Temperature problem???
  51. Starter replacement, what is the easiest way?
  52. Bearings?
  53. are northstars interferene engines?
  54. northstar head warpage?
  55. "LOW ENGINE COOLANT" came on...
  56. timeserts
  57. Northstar idle speed motor instsall
  58. Rss (c)1743, 1783, 1785 ??
  59. 4T80E drain plug location?
  60. Missfire 93 sts
  61. Idle is higher than normal and fluctuates
  62. STS 13:63, you ask how?
  63. Ok I can check my codes but how do you check them individually?
  64. Cadillac Hot Rodders!
  65. Keyless Entry Programming Procedure
  66. How to change Trans. Fluid?
  67. Borla exhaust needs your help
  68. Where's the Chip?
  69. Battery No Charge light on/ Alternator?
  70. New Owner Can I work on My Seville N* myself? Is it too electronic?
  71. northstars
  72. I am New here
  73. spark plug wires
  74. Sudden Stall
  75. What would you do? (fun project)
  76. Problems that were fixed (technical question)
  77. Waterpump Replacement
  78. I broke it!!
  79. 1999 Caddy Seville Sts
  80. High Mileage Northstar Thread: Who can beat me?
  81. 120,000 Miles on a Northstar?
  82. Rusted Fuel Filter
  83. Need some technical help/ suggestions from guys that know!!
  84. turbo for a northstar?
  85. Difference in 275HP & 300HP Engines
  86. Heads
  87. What size rims ....... (technical info)
  88. 95 SLS how to check coolant levels?
  89. Looking for Time sert kit
  90. Mobil 1 Synthetic Oil
  91. Screen in the intake system
  92. 100,000+ questions
  93. PVC Valve and Fuel Filter
  94. how to seperate the trans form the motor etc
  95. Ways to tell if your northstar motor is blown........look
  96. General Deville Maintenance
  97. New street rodder issue has N* Part 2!
  98. Need supporting info RE: 4.6 head bolts
  99. Northstar motor blown at 80,000 help...........
  100. Throttel Body Plate Size ???
  101. Caddy transplant
  102. 00 - 03 Seville questions:
  103. Northstar oil burning - what to do?
  104. That Coolant thing...
  105. B1136
  106. Allante losing coolant via bypass
  107. 2000 Dts - Rough Idle
  108. Resetting Change Oil Message
  109. finally made a few mods to the STS
  110. Knock sensor blues!!!
  111. Emission Message
  112. New Struts? When to replace them.
  113. Oil
  114. STSi heads availability
  115. seeping head gasket
  116. Premium Fuel
  117. just wanted to say hi to everyone!!!!!
  118. NOS on northstar??
  119. engine squeeking
  120. Engine Problems?
  121. Engine/Coolant Temp?
  122. How much to rebuild a northstar?
  123. Is there a SLS/STS performance chip/programer yet?
  124. how to turn off tractin
  125. "Check Oil Level"
  126. coolant color
  127. Firing order-
  128. engine miss
  129. North* with a manual?????
  130. Gasoline question
  131. sls tranny problem
  132. Hot Rod Caddy or LS1?
  133. upper motor mount part numbers?
  134. Cooling system sealants....
  135. A word about air filters
  136. Some Interesting facts...
  137. Transmission valve box?
  138. SES light
  139. Northstar STS story
  140. Clearing codes
  141. Oil in Coolant
  142. Is it just me, or did they use a shoehorn to get the N'Star under the hood of my STS?
  143. 2K 4.6 NS- No worries or no probs mentioned YET??
  144. Intermittent Hesitation
  145. Hey guys..quick question!
  146. How Strong is the Northstar Bottom End?
  147. tranny slipage on 97 deville
  148. Northstar 4.0L seems a little hot. Removed Thermostat. Bad Idea?
  149. Operating Temp??????
  150. Maintain Cooling system?
  151. Northstar Pull Question
  152. cracked spark plug
  153. 98+ Seville Free cold air intake mod
  154. Clearing Codes
  155. Check Coolent Level Keeps showing up
  156. blown headgasket
  157. 1994 Concours Transmission Question
  158. burned exhaust valve's ?!?!
  159. The Northstar Issue
  160. Head gasket or??? HELP Plz
  161. My 1997 ETC
  162. Nitrous Systems
  163. anyone with subscription, willing to run carfax for me?
  164. fuel rail
  165. Cadillac 32v Northstar 1993
  166. 98 Concours
  167. Blown head gasket
  168. Stabilzer Links
  169. Northstar Motor Intakes
  170. Rebuilding my Northstar please help!
  171. hot weather and hot northstar..HELP!
  172. 94 SLS Radiator
  173. Unusual Howling noise.
  174. Northstar Heating Up
  175. Throttle Body Bypass
  176. Ignition coil or ignition module ?
  177. stupid POS Alternator!!!
  178. a/c compressor/ clutch removal-install
  179. Cooling Fan Relay Location
  180. Tranny code P0741 & P1860
  181. Eldorado ?
  182. water pump pulley
  183. What can I do to push my '93 Eldo to the max?
  184. Northstar rods
  185. Interesting data
  186. Pic of STS removed resonator with chrome plug
  187. Gold vs. Silver On Northstar? Huh?
  188. 1993 - 1995 Northstar Chip Mods
  189. motor swap
  190. limp home mode
  191. Sealant tabs
  192. go fast parts
  193. Water Leakage
  194. Increase 96-03 Cadillac performance $1200
  195. Free mods?
  196. How to Diagnose
  197. electric fan override?
  198. Northstar Intake Cover
  199. Oil Life indicator
  200. Going to the 1/4 track in June. Suggestions?
  201. 2000 Cadillac stalling
  202. Free HP
  203. Anyone know if they make a NOS system?
  204. Key programming
  205. Accessing the OBD2 in your caddi
  206. Lucky ME! A workable dealer!
  207. Overheating Northstar
  208. Changing Spark plugs and Spark plug wires (Tuneup)
  209. Electronic Headache
  210. Northstar Oil Consumption
  211. How to get at the starter?
  212. Performance Chip on Ebay
  213. Top speed eliminator found!!!!
  214. Custom Stereo void warantee?
  215. engine cover?
  216. injector size
  217. Help!!! Asap!!!
  218. HI rpm at start??
  219. More Quirks with my eldo
  220. eww that smell! Could be oil problem
  221. the northstar was first offered...when?
  222. http://www.chrfab.com/ - Quality? Honest?
  223. throttle boddy clicking!!!! help!!!
  224. Transmission problems, anybody experience this?
  225. Northstar Intakes
  226. I made my northstar a little louder today
  227. Northstar Oil Filter:
  228. coolant and tranny fluid.
  229. My Caddy Is at the Doctor's Today
  230. How To Reset Oil Life Meter?
  231. Now My Dad Thinks His STS Takes Regular Unleaded!!!
  232. So Where Does the Extra 25hp Come From?? (Touring Models)
  233. 92-97 STS exhaust, what ya'll got?
  234. '98 Deville Stripped Head Bolt Holes
  235. Synthetic oil!
  236. Looking for a High performance radiator.
  237. A glitch or my imagination?
  238. Water pump problem
  239. weird acceleration
  240. Poll - would you buy a supercharger?
  241. DeVille vs DTS
  242. How about petitioning GM Performance?
  243. Cadillac Northstar Performance Parts Store Database
  244. LD8 and L37?
  245. Custom Intake Finished!
  246. aftermarket performance chips.......
  247. Rebuilding a Northstar engine
  248. electric power loss on full throttle?
  249. K&N Filter On Caddy?
  250. Important to PUSH the Northstar once a week?