: Northstar Engines and System Technical Discussion



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