: Northstar Engines and System Technical Discussion



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  1. Gas MPG low? and electrical question
  2. need help again, new code
  3. Failed Emission - high HC
  4. Stalling/Starting Problem
  5. 91 vw golf with northstar!!must see
  6. Looking for a source of Northstar Engines
  7. egr
  8. Starter Enable Relay!! Found it, Cleaned it, Fixed it.!!!
  9. Northstar head compatibility
  10. 96 Oil Leak
  11. Parts swapping
  12. Is there a GM TSB for the use of Time-Serts?
  13. 2000 Sts Exhaust
  14. 97 STS eliminate the converter?
  15. Exhaust question
  16. Limp yo-self home, N*!
  17. Trans. Problem?
  18. where is the starter relay, 1993 sts northstar
  19. Transmission flush?
  20. Forum Opinion on 2000 STS
  21. PLEASE!!! -4 and under, lights on,no power to starter!!
  22. dtc pcm 0139 now what?
  23. 1995 sts,manifold cover
  24. Check Coolant Level Message & temp. question
  25. overdrive or drive
  26. Code in history ? P039
  27. Dtc P0101
  28. How to pull engine codes and where to find?
  29. Performance mods!
  30. Diry relief valve causing loss of oil pressure?
  31. 95 STS Water Pump Question.
  32. NOLOGY wires for northstar motors
  33. northstar question
  34. Code SO61? PO83?
  35. Clicking noise
  36. Huge muffler comparison
  37. Fixed the egr valve myself
  38. Does Northstar turn off cylinders like 4-6-8?
  39. Fuel Additives
  40. Problems with N* arise
  41. Diagnostic Code?
  42. Went to a mechanic today on EGR
  43. Thoughts, opinions, and suggestions on carbon deposits.
  44. Year 2000 Northstar 32V engine oil consumption problem?
  45. Spark Plugs
  46. EGR Valve , need help locating it
  47. filling coolant system after flush
  48. Tornado Fuel Saver
  49. EGR valve install question
  50. Where are my O2 Sensors?
  51. PCM? What now
  52. My timesert kit on ebay, reserve at $160!
  53. No speedo!!!
  54. Carbon buildup/ fuel additives/ opinions???
  55. 95 sts starting problems
  56. Should I fix or sell?
  57. could be 1 or 2 things idler pulley or water pump plz help
  58. Northstar driven 94 Pontiac Grand Prix GTP RWD
  59. Leaking Water Pump 1998 Deville
  60. Smoking Northstar!
  61. Engine rebuilt?
  62. Northstar Squealing noise
  63. Oil change
  64. performance exhaust
  65. '94 Concours Hard To Start
  66. P0113/P1111 - then what ?
  67. whast should a 94 north start run temp wise
  68. Changing Serpentine Belt
  69. Custom Intake
  70. Maintaining Northstar Engines *A must Read*
  71. Headgasket replacement finished
  72. N* engine mount bushings...what happens if...
  73. How to remove the belt tensioner?
  74. New Cadillac owner
  75. TO 73 code??????
  76. What are my options?
  77. 2000 DeVille - Stalling
  78. Temp Sensor
  79. Misfirin' 98 DeVille. How much $ is DTC p0300,603,1381 cost?
  80. Temperature sensor - another problem...
  81. 4 Questions / 93 STS w/ 4.6
  82. Lights flicker?
  83. lights that dim when...
  84. Glitch In 97 Concours
  85. alternator replacement part deux
  86. P086 code on 94 STS keep sme from getting it smogged
  87. Calling out 156mph
  88. Cadillac dealer...
  89. ShadowLvr400......
  90. 4.6 northstar / engine, Trans swap ?
  91. TRANSMISSION/Torque convertor problems??? HELP!!!
  92. Nitrous
  93. More on coolant issues....Long post alert!
  94. '95 STS Clearing on-board diagnostic codes
  95. Quick and Simple Question
  96. 2000 STS Oil Life
  97. Calling all North* Specialist....Changing out the Alternator
  98. Service Engine Soon? What's that Noise?
  99. Dashboard mayhem
  100. weird?
  101. Need Technical Help for Engine swaping...
  102. Anyone have an opinion on electric superchargers?
  103. Will '95 coil pack, intake or exhaust fit my '93 N*?
  104. northstar performance upgrades
  105. Exhaust manifold ?
  106. Please help! Considering a '94 Deville Concours N'star
  107. New member, trying to find out if oil burning is ok!
  108. Repair Advice Needed in Orange County, CA
  109. P030 Code on '93 STS
  110. "no battery charge"
  111. "check oil level"
  112. '95 STS showing SES code: P085
  113. Which o2 sensor??
  114. Code PO24-VSS Signal To TCC-Where is It Located At?
  115. TPS - Problems
  116. thermal meltdown of n* engine ?
  117. Are Gremlins pinching my fuel line? ARGHHH!!
  118. 2002 engine into 97 Deville?
  119. Tune up?
  120. Freeze plugs ( So called )
  121. 94 Concourse Shifting Problem
  122. I smell gas in my 95 concours
  123. message
  124. update on my 97 concours
  125. NA power out of a North*?
  126. 2002 what does loss of dim communication?
  127. Turbos put back?
  128. Leaking Heater Core in 1999 DeVelle
  129. Overheating: Am I screwed?
  130. Bolting filter right on the motor
  131. 94 Eldorado Oil level sensor problem
  132. o2 sensors!!!!!! argggggggg
  133. Help Codes Driving Me Insane
  134. Funny Smell
  135. 94 Seville STS History Codes???
  136. Emissions Code on 1996 STS
  137. Real unhappy with (my new) used caddy - Can't ID the DTC's
  138. Opinions on possible purchase 91 Deville
  139. Signs you need a tuneup?
  140. R/r water pump
  141. Help Me!
  142. Hard Starting STS
  143. OBD2 Reprogramming
  144. Chip or no chip?
  145. Northstar R&R Book Times
  146. Northstars & oil consumption...are there "good" & "bad" motors?
  147. 275hp to 300hp head swap question
  148. Northstar Aftermarket Support
  149. Do Northstars burn oil fast???
  150. Help!!
  151. Northstar overheating
  152. Most common problems with NS motor
  153. Engine size ?????
  154. What is the deal with the Crank Position Sensor and...
  155. sneaky coolant leak, Northstar
  156. Bad plug wires get you crazy codes
  157. stupid dipstick
  158. N* Head Gasket repair part I/ Remove engine
  159. idle speed adjust?
  160. Belt Question
  161. Emissions System
  162. 99 SLS probelms
  163. help with codes?
  164. Head Work
  165. New person here - piston replacement question
  166. How to get to plugs on 00 STS?
  167. 1995 SLS Engine and Trans
  168. tps 1995 sts adjusted
  169. are the '93 and '95 northstar computers the same?
  170. Cracked Water Pump Housing Northstar
  171. Erratic fuel level gauge & a few other ???
  172. Time serts head gaskets and cadillac refunds
  173. 1990 Sedan Deville Valve Job
  174. Limited slip...sort of
  175. Octane reading
  176. Check Oilk Level wont stop
  177. Please help..engine coolant ?....
  178. Traction Control on STS ???
  179. 96 Seville, Check Engine Light, New owner?
  180. Help with cooling system
  181. ? on seville northstar motor?
  182. Help! I have a 1997 Concours(traction c) I would love to know where this wire goes??
  183. maintenence records?
  184. rear windows fog up
  185. Northstar - Golf swap
  186. PCM codes
  187. 1997 Deville problems
  188. Smelling Coolant inside - 93 STS
  189. Battery Replacement on 95 STS
  190. Service Brake Fluid Switch
  191. Transmition shifting ?'s
  192. Engine cutout 93STS north*
  193. Oil Life Message Problem
  194. Can I get some pictures (N* mounting)?
  195. OBD codes
  196. 95-sts wont start
  197. idle sts-95
  198. Anyone know where I can find cheap o2 sensors?!
  199. So....someone wanna rent me a timesert kit?
  200. Ignition module failure?
  201. Need help understanding a code
  202. Best oil for Northstar engines?
  203. Northstar questions: engine and tranny mounts
  204. Service Engine Light
  205. Idle speed
  206. Intermitant DTC P1416, where do I start looking?
  207. phenolic spacers cleaning
  208. Regular Unleaded
  209. Throttle Body
  210. 97 Concours....SOLD!
  211. Help Codes
  212. Thermostat
  213. 4.0/4.6 Combustion Chambers
  214. Intake air sensor / resistor mod
  215. valve job? something burning......
  216. Easy method of telling you need a coolant change!!!!!
  217. 97 dedan deville speedometer display out...
  218. 4.6L engine knock at idle
  219. High Performance driving
  220. Starting Issue
  221. High octane
  222. 4.6L engine knock at idle
  223. Headgaskets
  224. hard starting, won't pass smog symptoms
  225. Info on converter lock,,code PO39
  226. Northstar engine numbers
  227. Locking converter/check engine SOON
  228. How to replace front motor MOUNT
  229. can any one help
  230. Motor Rocks
  231. Torque converter lockup?
  232. Help!
  233. Regular Gas
  234. Nitrous Kit for Northstars - It exists
  235. why do people tell me northstars are junk?
  236. Coolant Loss
  237. VERY slight valve knock on '98 STS Northstar?
  238. Won't shift out of 1st gear
  239. Let's get some performance parts!
  240. Just how fragile are they?
  241. experienced mechanic in Los Angeles
  242. RWD 5-speeds
  243. Let's get an OBD Programmer...
  244. Limiters on 96 STS
  245. 1996 northstar in 95 eldorado - Strange things happening!
  246. Technical Photo Section?
  247. service engine light is on
  248. engine compatibility
  249. code help please
  250. 99' STS low-end torque is sluggish?