: Northstar Engines and System Technical Discussion



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  1. 96 Eldo Warm Eng. Miss No Codes
  2. Every North* blows head gaskets??????
  3. 97 STS P0300 Current/P0603 History SES light
  4. Shift Solenoid "A" and "B" question
  5. whats the difference
  6. Head gaskets on 1993 Allante Northstar
  7. Got codes Help Please
  8. How do I Access OBCII 98 DeVille
  9. good buy?
  10. Fuel Pressure Loss
  11. Crank Sensor--Revisited
  12. Suddenly running rough
  13. Northstar Stalls On Restart
  14. northstar engine swap info
  15. Yep She's A Leaker
  16. Fuel economy post 60k service?
  17. Fuel rail leak--another thorn in the side
  18. anyon know where i can get a chip?
  19. 4.6 running rough at idle in gear
  20. Codes
  21. wat should i do to my car
  22. Annoying engine noise
  23. How long to check codes?
  24. 93 STS Overheated, now idles high. PLEASE HELP
  25. Engine Stalling at traffic light
  26. Coolant Supplement Tablet question
  27. Trans or can it be Electrical
  28. help wilth coede PO23
  29. my 94 SLS code problems help!!
  30. Transmission help!!
  31. Where is the EGR valve located?
  32. clearing codes
  33. How To Fix Clicking Throttle Body
  34. Where can I buy a new EGR valve at a good price?
  35. '98 STS - "Service engine soon" light was on for two days...now off...car runs great
  36. Coolant Flush?
  37. Random Multiple Cylinder Misfire
  38. Idle seems rough.
  39. how to avoid cracked heads?
  40. Can you put in too much coolant?
  41. Dex-Cool
  42. Engine Coolant
  43. Weird?
  44. oil pressure loss "STOP ENGINE" warning FIX
  45. Impossible To Fix Overheating Problem
  46. Leaking coolant? Head gasket???
  47. 4t80-e transmission leakage
  48. Resonator Question..
  49. 96 Eldo Warm Eng. Miss. Acceleration Miss.
  50. How do I retrive codes
  51. Help! Service Emissions Soon and Check Engine
  52. Can you repair the fuel rail
  53. Where to get Northstar computer and harness??
  54. A Little Head
  55. 97 Eldo running weak!
  56. Ok, I've pulled the codes and decoded them...
  57. How do I pull codes off my 97 SLS?
  58. help!!...no start and no power at purple wire
  59. slow return to idle (95 sts)
  60. surging under WOT
  61. where do i get performance chips
  62. EMERGENCY----c1232 and c1255
  63. SUPERCHARGER soon
  64. Fuel Problem. TPS or a cleaning?
  65. Northstar needs engine protectors ?
  66. Spark Plug and Wire Change Summary
  67. Help! 96 STS Stalling and Barely Drives
  68. Bad oil Leak
  69. Is it possible to go from 4.1 to Northstar?
  70. need help on replacing the idle speed control motor
  71. Fuel Rail Replacement 96 sts
  72. ISO mechanic for 95 Seville in NE Illinois/SE Wisconsin
  73. N.Star Deville afermarket Tachometer ?
  74. Northstar Electromotive TEC3 .bin file needed
  75. Blown Head Gasket...Help!!
  76. STS Computer Into Deville?
  77. Frozen Spark Plugs
  78. thanks elwesso,lido
  79. Eldorado Exhaust??
  80. Frenchcad Is Asking For Help To Burn Speed Limit...
  81. car won't start!
  82. 95 STS corrosion
  83. One Dead Deville 1999
  84. 94' SLS t073 erratic idle & stalling
  85. 2000sts trouble codes
  86. check engine soon????????
  87. 99 STS Gas pedal sticking
  88. 94 Northstar question
  89. BG44k
  90. (Pressing gas) CLUNK.. What the heck?
  91. Fuel Additives
  92. Loud Pop
  93. help with some error codes 96 etc.
  94. Increasing Displacement
  95. 4T80E gearing
  96. Holy hell, i tried that Lucus oil additive....
  97. "Stop Engine Low Oil Pressure"
  98. Gas MPG low? and electrical question
  99. need help again, new code
  100. Failed Emission - high HC
  101. Stalling/Starting Problem
  102. 91 vw golf with northstar!!must see
  103. Looking for a source of Northstar Engines
  104. egr
  105. Starter Enable Relay!! Found it, Cleaned it, Fixed it.!!!
  106. Northstar head compatibility
  107. 96 Oil Leak
  108. Parts swapping
  109. Is there a GM TSB for the use of Time-Serts?
  110. 2000 Sts Exhaust
  111. 97 STS eliminate the converter?
  112. Exhaust question
  113. Limp yo-self home, N*!
  114. Trans. Problem?
  115. where is the starter relay, 1993 sts northstar
  116. Transmission flush?
  117. Forum Opinion on 2000 STS
  118. PLEASE!!! -4 and under, lights on,no power to starter!!
  119. dtc pcm 0139 now what?
  120. 1995 sts,manifold cover
  121. Check Coolant Level Message & temp. question
  122. overdrive or drive
  123. Code in history ? P039
  124. Dtc P0101
  125. How to pull engine codes and where to find?
  126. Performance mods!
  127. Diry relief valve causing loss of oil pressure?
  128. 95 STS Water Pump Question.
  129. NOLOGY wires for northstar motors
  130. northstar question
  131. Code SO61? PO83?
  132. Clicking noise
  133. Huge muffler comparison
  134. Fixed the egr valve myself
  135. Does Northstar turn off cylinders like 4-6-8?
  136. Fuel Additives
  137. Problems with N* arise
  138. Diagnostic Code?
  139. Went to a mechanic today on EGR
  140. Thoughts, opinions, and suggestions on carbon deposits.
  141. Year 2000 Northstar 32V engine oil consumption problem?
  142. Spark Plugs
  143. EGR Valve , need help locating it
  144. filling coolant system after flush
  145. Tornado Fuel Saver
  146. EGR valve install question
  147. Where are my O2 Sensors?
  148. PCM? What now
  149. My timesert kit on ebay, reserve at $160!
  150. No speedo!!!
  151. Carbon buildup/ fuel additives/ opinions???
  152. 95 sts starting problems
  153. Should I fix or sell?
  154. could be 1 or 2 things idler pulley or water pump plz help
  155. Northstar driven 94 Pontiac Grand Prix GTP RWD
  156. Leaking Water Pump 1998 Deville
  157. Smoking Northstar!
  158. Engine rebuilt?
  159. Northstar Squealing noise
  160. Oil change
  161. performance exhaust
  162. '94 Concours Hard To Start
  163. P0113/P1111 - then what ?
  164. whast should a 94 north start run temp wise
  165. Changing Serpentine Belt
  166. Custom Intake
  167. Maintaining Northstar Engines *A must Read*
  168. Headgasket replacement finished
  169. N* engine mount bushings...what happens if...
  170. How to remove the belt tensioner?
  171. New Cadillac owner
  172. TO 73 code??????
  173. What are my options?
  174. 2000 DeVille - Stalling
  175. Temp Sensor
  176. Misfirin' 98 DeVille. How much $ is DTC p0300,603,1381 cost?
  177. Temperature sensor - another problem...
  178. 4 Questions / 93 STS w/ 4.6
  179. Lights flicker?
  180. lights that dim when...
  181. Glitch In 97 Concours
  182. alternator replacement part deux
  183. P086 code on 94 STS keep sme from getting it smogged
  184. Calling out 156mph
  185. Cadillac dealer...
  186. ShadowLvr400......
  187. 4.6 northstar / engine, Trans swap ?
  188. TRANSMISSION/Torque convertor problems??? HELP!!!
  189. Nitrous
  190. More on coolant issues....Long post alert!
  191. '95 STS Clearing on-board diagnostic codes
  192. Quick and Simple Question
  193. 2000 STS Oil Life
  194. Calling all North* Specialist....Changing out the Alternator
  195. Service Engine Soon? What's that Noise?
  196. Dashboard mayhem
  197. weird?
  198. Need Technical Help for Engine swaping...
  199. Anyone have an opinion on electric superchargers?
  200. Will '95 coil pack, intake or exhaust fit my '93 N*?
  201. northstar performance upgrades
  202. Exhaust manifold ?
  203. Please help! Considering a '94 Deville Concours N'star
  204. New member, trying to find out if oil burning is ok!
  205. Repair Advice Needed in Orange County, CA
  206. P030 Code on '93 STS
  207. "no battery charge"
  208. "check oil level"
  209. '95 STS showing SES code: P085
  210. Which o2 sensor??
  211. Code PO24-VSS Signal To TCC-Where is It Located At?
  212. TPS - Problems
  213. thermal meltdown of n* engine ?
  214. Are Gremlins pinching my fuel line? ARGHHH!!
  215. 2002 engine into 97 Deville?
  216. Tune up?
  217. Freeze plugs ( So called )
  218. 94 Concourse Shifting Problem
  219. I smell gas in my 95 concours
  220. message
  221. update on my 97 concours
  222. NA power out of a North*?
  223. 2002 what does loss of dim communication?
  224. Turbos put back?
  225. Leaking Heater Core in 1999 DeVelle
  226. Overheating: Am I screwed?
  227. Bolting filter right on the motor
  228. 94 Eldorado Oil level sensor problem
  229. o2 sensors!!!!!! argggggggg
  230. Help Codes Driving Me Insane
  231. Funny Smell
  232. 94 Seville STS History Codes???
  233. Emissions Code on 1996 STS
  234. Real unhappy with (my new) used caddy - Can't ID the DTC's
  235. Opinions on possible purchase 91 Deville
  236. Signs you need a tuneup?
  237. R/r water pump
  238. Help Me!
  239. Hard Starting STS
  240. OBD2 Reprogramming
  241. Chip or no chip?
  242. Northstar R&R Book Times
  243. Northstars & oil consumption...are there "good" & "bad" motors?
  244. 275hp to 300hp head swap question
  245. Northstar Aftermarket Support
  246. Do Northstars burn oil fast???
  247. Help!!
  248. Northstar overheating
  249. Most common problems with NS motor
  250. Engine size ?????