: Northstar Engines and System Technical Discussion



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  1. Codes
  2. wat should i do to my car
  3. Annoying engine noise
  4. How long to check codes?
  5. 93 STS Overheated, now idles high. PLEASE HELP
  6. Engine Stalling at traffic light
  7. Coolant Supplement Tablet question
  8. Trans or can it be Electrical
  9. help wilth coede PO23
  10. my 94 SLS code problems help!!
  11. Transmission help!!
  12. Where is the EGR valve located?
  13. clearing codes
  14. How To Fix Clicking Throttle Body
  15. Where can I buy a new EGR valve at a good price?
  16. '98 STS - "Service engine soon" light was on for two days...now off...car runs great
  17. Coolant Flush?
  18. Random Multiple Cylinder Misfire
  19. Idle seems rough.
  20. how to avoid cracked heads?
  21. Can you put in too much coolant?
  22. Dex-Cool
  23. Engine Coolant
  24. Weird?
  25. oil pressure loss "STOP ENGINE" warning FIX
  26. Impossible To Fix Overheating Problem
  27. Leaking coolant? Head gasket???
  28. 4t80-e transmission leakage
  29. Resonator Question..
  30. 96 Eldo Warm Eng. Miss. Acceleration Miss.
  31. How do I retrive codes
  32. Help! Service Emissions Soon and Check Engine
  33. Can you repair the fuel rail
  34. Where to get Northstar computer and harness??
  35. A Little Head
  36. 97 Eldo running weak!
  37. Ok, I've pulled the codes and decoded them...
  38. How do I pull codes off my 97 SLS?
  39. help!!...no start and no power at purple wire
  40. slow return to idle (95 sts)
  41. surging under WOT
  42. where do i get performance chips
  43. EMERGENCY----c1232 and c1255
  44. SUPERCHARGER soon
  45. Fuel Problem. TPS or a cleaning?
  46. Northstar needs engine protectors ?
  47. Spark Plug and Wire Change Summary
  48. Help! 96 STS Stalling and Barely Drives
  49. Bad oil Leak
  50. Is it possible to go from 4.1 to Northstar?
  51. need help on replacing the idle speed control motor
  52. Fuel Rail Replacement 96 sts
  53. ISO mechanic for 95 Seville in NE Illinois/SE Wisconsin
  54. N.Star Deville afermarket Tachometer ?
  55. Northstar Electromotive TEC3 .bin file needed
  56. Blown Head Gasket...Help!!
  57. STS Computer Into Deville?
  58. Frozen Spark Plugs
  59. thanks elwesso,lido
  60. Eldorado Exhaust??
  61. Frenchcad Is Asking For Help To Burn Speed Limit...
  62. car won't start!
  63. 95 STS corrosion
  64. One Dead Deville 1999
  65. 94' SLS t073 erratic idle & stalling
  66. 2000sts trouble codes
  67. check engine soon????????
  68. 99 STS Gas pedal sticking
  69. 94 Northstar question
  70. BG44k
  71. (Pressing gas) CLUNK.. What the heck?
  72. Fuel Additives
  73. Loud Pop
  74. help with some error codes 96 etc.
  75. Increasing Displacement
  76. 4T80E gearing
  77. Holy hell, i tried that Lucus oil additive....
  78. "Stop Engine Low Oil Pressure"
  79. Gas MPG low? and electrical question
  80. need help again, new code
  81. Failed Emission - high HC
  82. Stalling/Starting Problem
  83. 91 vw golf with northstar!!must see
  84. Looking for a source of Northstar Engines
  85. egr
  86. Starter Enable Relay!! Found it, Cleaned it, Fixed it.!!!
  87. Northstar head compatibility
  88. 96 Oil Leak
  89. Parts swapping
  90. Is there a GM TSB for the use of Time-Serts?
  91. 2000 Sts Exhaust
  92. 97 STS eliminate the converter?
  93. Exhaust question
  94. Limp yo-self home, N*!
  95. Trans. Problem?
  96. where is the starter relay, 1993 sts northstar
  97. Transmission flush?
  98. Forum Opinion on 2000 STS
  99. PLEASE!!! -4 and under, lights on,no power to starter!!
  100. dtc pcm 0139 now what?
  101. 1995 sts,manifold cover
  102. Check Coolant Level Message & temp. question
  103. overdrive or drive
  104. Code in history ? P039
  105. Dtc P0101
  106. How to pull engine codes and where to find?
  107. Performance mods!
  108. Diry relief valve causing loss of oil pressure?
  109. 95 STS Water Pump Question.
  110. NOLOGY wires for northstar motors
  111. northstar question
  112. Code SO61? PO83?
  113. Clicking noise
  114. Huge muffler comparison
  115. Fixed the egr valve myself
  116. Does Northstar turn off cylinders like 4-6-8?
  117. Fuel Additives
  118. Problems with N* arise
  119. Diagnostic Code?
  120. Went to a mechanic today on EGR
  121. Thoughts, opinions, and suggestions on carbon deposits.
  122. Year 2000 Northstar 32V engine oil consumption problem?
  123. Spark Plugs
  124. EGR Valve , need help locating it
  125. filling coolant system after flush
  126. Tornado Fuel Saver
  127. EGR valve install question
  128. Where are my O2 Sensors?
  129. PCM? What now
  130. My timesert kit on ebay, reserve at $160!
  131. No speedo!!!
  132. Carbon buildup/ fuel additives/ opinions???
  133. 95 sts starting problems
  134. Should I fix or sell?
  135. could be 1 or 2 things idler pulley or water pump plz help
  136. Northstar driven 94 Pontiac Grand Prix GTP RWD
  137. Leaking Water Pump 1998 Deville
  138. Smoking Northstar!
  139. Engine rebuilt?
  140. Northstar Squealing noise
  141. Oil change
  142. performance exhaust
  143. '94 Concours Hard To Start
  144. P0113/P1111 - then what ?
  145. whast should a 94 north start run temp wise
  146. Changing Serpentine Belt
  147. Custom Intake
  148. Maintaining Northstar Engines *A must Read*
  149. Headgasket replacement finished
  150. N* engine mount bushings...what happens if...
  151. How to remove the belt tensioner?
  152. New Cadillac owner
  153. TO 73 code??????
  154. What are my options?
  155. 2000 DeVille - Stalling
  156. Temp Sensor
  157. Misfirin' 98 DeVille. How much $ is DTC p0300,603,1381 cost?
  158. Temperature sensor - another problem...
  159. 4 Questions / 93 STS w/ 4.6
  160. Lights flicker?
  161. lights that dim when...
  162. Glitch In 97 Concours
  163. alternator replacement part deux
  164. P086 code on 94 STS keep sme from getting it smogged
  165. Calling out 156mph
  166. Cadillac dealer...
  167. ShadowLvr400......
  168. 4.6 northstar / engine, Trans swap ?
  169. TRANSMISSION/Torque convertor problems??? HELP!!!
  170. Nitrous
  171. More on coolant issues....Long post alert!
  172. '95 STS Clearing on-board diagnostic codes
  173. Quick and Simple Question
  174. 2000 STS Oil Life
  175. Calling all North* Specialist....Changing out the Alternator
  176. Service Engine Soon? What's that Noise?
  177. Dashboard mayhem
  178. weird?
  179. Need Technical Help for Engine swaping...
  180. Anyone have an opinion on electric superchargers?
  181. Will '95 coil pack, intake or exhaust fit my '93 N*?
  182. northstar performance upgrades
  183. Exhaust manifold ?
  184. Please help! Considering a '94 Deville Concours N'star
  185. New member, trying to find out if oil burning is ok!
  186. Repair Advice Needed in Orange County, CA
  187. P030 Code on '93 STS
  188. "no battery charge"
  189. "check oil level"
  190. '95 STS showing SES code: P085
  191. Which o2 sensor??
  192. Code PO24-VSS Signal To TCC-Where is It Located At?
  193. TPS - Problems
  194. thermal meltdown of n* engine ?
  195. Are Gremlins pinching my fuel line? ARGHHH!!
  196. 2002 engine into 97 Deville?
  197. Tune up?
  198. Freeze plugs ( So called )
  199. 94 Concourse Shifting Problem
  200. I smell gas in my 95 concours
  201. message
  202. update on my 97 concours
  203. NA power out of a North*?
  204. 2002 what does loss of dim communication?
  205. Turbos put back?
  206. Leaking Heater Core in 1999 DeVelle
  207. Overheating: Am I screwed?
  208. Bolting filter right on the motor
  209. 94 Eldorado Oil level sensor problem
  210. o2 sensors!!!!!! argggggggg
  211. Help Codes Driving Me Insane
  212. Funny Smell
  213. 94 Seville STS History Codes???
  214. Emissions Code on 1996 STS
  215. Real unhappy with (my new) used caddy - Can't ID the DTC's
  216. Opinions on possible purchase 91 Deville
  217. Signs you need a tuneup?
  218. R/r water pump
  219. Help Me!
  220. Hard Starting STS
  221. OBD2 Reprogramming
  222. Chip or no chip?
  223. Northstar R&R Book Times
  224. Northstars & oil consumption...are there "good" & "bad" motors?
  225. 275hp to 300hp head swap question
  226. Northstar Aftermarket Support
  227. Do Northstars burn oil fast???
  228. Help!!
  229. Northstar overheating
  230. Most common problems with NS motor
  231. Engine size ?????
  232. What is the deal with the Crank Position Sensor and...
  233. sneaky coolant leak, Northstar
  234. Bad plug wires get you crazy codes
  235. stupid dipstick
  236. N* Head Gasket repair part I/ Remove engine
  237. idle speed adjust?
  238. Belt Question
  239. Emissions System
  240. 99 SLS probelms
  241. help with codes?
  242. Head Work
  243. New person here - piston replacement question
  244. How to get to plugs on 00 STS?
  245. 1995 SLS Engine and Trans
  246. tps 1995 sts adjusted
  247. are the '93 and '95 northstar computers the same?
  248. Cracked Water Pump Housing Northstar
  249. Erratic fuel level gauge & a few other ???
  250. Time serts head gaskets and cadillac refunds