: Northstar Engines and System Technical Discussion



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