: Northstar Engines and System Technical Discussion



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  1. Northstar Squealing noise
  2. Oil change
  3. performance exhaust
  4. '94 Concours Hard To Start
  5. P0113/P1111 - then what ?
  6. whast should a 94 north start run temp wise
  7. Changing Serpentine Belt
  8. Custom Intake
  9. Maintaining Northstar Engines *A must Read*
  10. Headgasket replacement finished
  11. N* engine mount bushings...what happens if...
  12. How to remove the belt tensioner?
  13. New Cadillac owner
  14. TO 73 code??????
  15. What are my options?
  16. 2000 DeVille - Stalling
  17. Temp Sensor
  18. Misfirin' 98 DeVille. How much $ is DTC p0300,603,1381 cost?
  19. Temperature sensor - another problem...
  20. 4 Questions / 93 STS w/ 4.6
  21. Lights flicker?
  22. lights that dim when...
  23. Glitch In 97 Concours
  24. alternator replacement part deux
  25. P086 code on 94 STS keep sme from getting it smogged
  26. Calling out 156mph
  27. Cadillac dealer...
  28. ShadowLvr400......
  29. 4.6 northstar / engine, Trans swap ?
  30. TRANSMISSION/Torque convertor problems??? HELP!!!
  31. Nitrous
  32. More on coolant issues....Long post alert!
  33. '95 STS Clearing on-board diagnostic codes
  34. Quick and Simple Question
  35. 2000 STS Oil Life
  36. Calling all North* Specialist....Changing out the Alternator
  37. Service Engine Soon? What's that Noise?
  38. Dashboard mayhem
  39. weird?
  40. Need Technical Help for Engine swaping...
  41. Anyone have an opinion on electric superchargers?
  42. Will '95 coil pack, intake or exhaust fit my '93 N*?
  43. northstar performance upgrades
  44. Exhaust manifold ?
  45. Please help! Considering a '94 Deville Concours N'star
  46. New member, trying to find out if oil burning is ok!
  47. Repair Advice Needed in Orange County, CA
  48. P030 Code on '93 STS
  49. "no battery charge"
  50. "check oil level"
  51. '95 STS showing SES code: P085
  52. Which o2 sensor??
  53. Code PO24-VSS Signal To TCC-Where is It Located At?
  54. TPS - Problems
  55. thermal meltdown of n* engine ?
  56. Are Gremlins pinching my fuel line? ARGHHH!!
  57. 2002 engine into 97 Deville?
  58. Tune up?
  59. Freeze plugs ( So called )
  60. 94 Concourse Shifting Problem
  61. I smell gas in my 95 concours
  62. message
  63. update on my 97 concours
  64. NA power out of a North*?
  65. 2002 what does loss of dim communication?
  66. Turbos put back?
  67. Leaking Heater Core in 1999 DeVelle
  68. Overheating: Am I screwed?
  69. Bolting filter right on the motor
  70. 94 Eldorado Oil level sensor problem
  71. o2 sensors!!!!!! argggggggg
  72. Help Codes Driving Me Insane
  73. Funny Smell
  74. 94 Seville STS History Codes???
  75. Emissions Code on 1996 STS
  76. Real unhappy with (my new) used caddy - Can't ID the DTC's
  77. Opinions on possible purchase 91 Deville
  78. Signs you need a tuneup?
  79. R/r water pump
  80. Help Me!
  81. Hard Starting STS
  82. OBD2 Reprogramming
  83. Chip or no chip?
  84. Northstar R&R Book Times
  85. Northstars & oil consumption...are there "good" & "bad" motors?
  86. 275hp to 300hp head swap question
  87. Northstar Aftermarket Support
  88. Do Northstars burn oil fast???
  89. Help!!
  90. Northstar overheating
  91. Most common problems with NS motor
  92. Engine size ?????
  93. What is the deal with the Crank Position Sensor and...
  94. sneaky coolant leak, Northstar
  95. Bad plug wires get you crazy codes
  96. stupid dipstick
  97. N* Head Gasket repair part I/ Remove engine
  98. idle speed adjust?
  99. Belt Question
  100. Emissions System
  101. 99 SLS probelms
  102. help with codes?
  103. Head Work
  104. New person here - piston replacement question
  105. How to get to plugs on 00 STS?
  106. 1995 SLS Engine and Trans
  107. tps 1995 sts adjusted
  108. are the '93 and '95 northstar computers the same?
  109. Cracked Water Pump Housing Northstar
  110. Erratic fuel level gauge & a few other ???
  111. Time serts head gaskets and cadillac refunds
  112. 1990 Sedan Deville Valve Job
  113. Limited slip...sort of
  114. Octane reading
  115. Check Oilk Level wont stop
  116. Please help..engine coolant ?....
  117. Traction Control on STS ???
  118. 96 Seville, Check Engine Light, New owner?
  119. Help with cooling system
  120. ? on seville northstar motor?
  121. Help! I have a 1997 Concours(traction c) I would love to know where this wire goes??
  122. maintenence records?
  123. rear windows fog up
  124. Northstar - Golf swap
  125. PCM codes
  126. 1997 Deville problems
  127. Smelling Coolant inside - 93 STS
  128. Battery Replacement on 95 STS
  129. Service Brake Fluid Switch
  130. Transmition shifting ?'s
  131. Engine cutout 93STS north*
  132. Oil Life Message Problem
  133. Can I get some pictures (N* mounting)?
  134. OBD codes
  135. 95-sts wont start
  136. idle sts-95
  137. Anyone know where I can find cheap o2 sensors?!
  138. So....someone wanna rent me a timesert kit?
  139. Ignition module failure?
  140. Need help understanding a code
  141. Best oil for Northstar engines?
  142. Northstar questions: engine and tranny mounts
  143. Service Engine Light
  144. Idle speed
  145. Intermitant DTC P1416, where do I start looking?
  146. phenolic spacers cleaning
  147. Regular Unleaded
  148. Throttle Body
  149. 97 Concours....SOLD!
  150. Help Codes
  151. Thermostat
  152. 4.0/4.6 Combustion Chambers
  153. Intake air sensor / resistor mod
  154. valve job? something burning......
  155. Easy method of telling you need a coolant change!!!!!
  156. 97 dedan deville speedometer display out...
  157. 4.6L engine knock at idle
  158. High Performance driving
  159. Starting Issue
  160. High octane
  161. 4.6L engine knock at idle
  162. Headgaskets
  163. hard starting, won't pass smog symptoms
  164. Info on converter lock,,code PO39
  165. Northstar engine numbers
  166. Locking converter/check engine SOON
  167. How to replace front motor MOUNT
  168. can any one help
  169. Motor Rocks
  170. Torque converter lockup?
  171. Help!
  172. Regular Gas
  173. Nitrous Kit for Northstars - It exists
  174. why do people tell me northstars are junk?
  175. Coolant Loss
  176. VERY slight valve knock on '98 STS Northstar?
  177. Won't shift out of 1st gear
  178. Let's get some performance parts!
  179. Just how fragile are they?
  180. experienced mechanic in Los Angeles
  181. RWD 5-speeds
  182. Let's get an OBD Programmer...
  183. Limiters on 96 STS
  184. 1996 northstar in 95 eldorado - Strange things happening!
  185. Technical Photo Section?
  186. service engine light is on
  187. engine compatibility
  188. code help please
  189. 99' STS low-end torque is sluggish?
  190. Blessed With Head Gasket Leakage as Well...
  191. timesert kit
  192. performance pcm/ecu mods ODB II (96+ ) (i.e. 1999 sts)
  193. Can the 300 HP be swapped with 275 HP motor?
  194. North star motor swap
  195. Diagnostic codes and running rough
  196. cam timing tool
  197. Hard Shifting Transmision
  198. Squeek, scrape, whir.
  199. transmission removal in 94 eldorado???
  200. 2001 seville sparkplug location
  201. need advice-- cooling
  202. engine removal and install procedures
  203. Temperature problem???
  204. Starter replacement, what is the easiest way?
  205. Bearings?
  206. are northstars interferene engines?
  207. northstar head warpage?
  208. "LOW ENGINE COOLANT" came on...
  209. timeserts
  210. Northstar idle speed motor instsall
  211. Rss (c)1743, 1783, 1785 ??
  212. 4T80E drain plug location?
  213. Missfire 93 sts
  214. Idle is higher than normal and fluctuates
  215. STS 13:63, you ask how?
  216. Ok I can check my codes but how do you check them individually?
  217. Cadillac Hot Rodders!
  218. Keyless Entry Programming Procedure
  219. How to change Trans. Fluid?
  220. Borla exhaust needs your help
  221. Where's the Chip?
  222. Battery No Charge light on/ Alternator?
  223. New Owner Can I work on My Seville N* myself? Is it too electronic?
  224. northstars
  225. I am New here
  226. spark plug wires
  227. Sudden Stall
  228. What would you do? (fun project)
  229. Problems that were fixed (technical question)
  230. Waterpump Replacement
  231. I broke it!!
  232. 1999 Caddy Seville Sts
  233. High Mileage Northstar Thread: Who can beat me?
  234. 120,000 Miles on a Northstar?
  235. Rusted Fuel Filter
  236. Need some technical help/ suggestions from guys that know!!
  237. turbo for a northstar?
  238. Difference in 275HP & 300HP Engines
  239. Heads
  240. What size rims ....... (technical info)
  241. 95 SLS how to check coolant levels?
  242. Looking for Time sert kit
  243. Mobil 1 Synthetic Oil
  244. Screen in the intake system
  245. 100,000+ questions
  246. PVC Valve and Fuel Filter
  247. how to seperate the trans form the motor etc
  248. Ways to tell if your northstar motor is blown........look
  249. General Deville Maintenance
  250. New street rodder issue has N* Part 2!