: Northstar Engines and System Technical Discussion



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