: Northstar Engines and System Technical Discussion



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