: Northstar Engines and System Technical Discussion



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  1. Crankshaft Position Sensor
  2. 2002 Eldog
  3. changing starter on 1998 deville--have you done it?
  4. 01 STS - Engine cutting out on accel
  5. Ram Air set-up on a 95 STS
  6. NorthStar painting touch up?
  7. Camchain timing
  8. 03 front (left) motor mount help
  9. Oil filter IArea
  10. I may need all forum members help, especially those who have ordered the stud kits.
  11. Do NS engines have an "air regulator"?
  12. Injector Alternatives
  13. Best year for a NorthStar??
  14. How to remove oil filter adapter???
  15. 95 N* intake issue
  16. How to lock flywheel without $150 tool?
  17. 2001 Deville DTS PO300 Random Misfires
  18. Cadillac STS Coolant, service stability system...
  19. anyone ever use Engine Ice Hi-Performance Coolant
  20. 1994 cadillac sts coolant loss
  21. What size of Time-Sert I have to buy ?
  22. 96 Eldo ETC I found the ABS computer cover...how do I get in it?? Do I force it?
  23. 96 Eldo engine sputters and stalls. P0300 and P1380 Engine Misfire.
  24. 01 STS Water pump grumbling noise
  25. Replacement Engine
  26. Coolant loss?
  27. what is the difference between the concourse and regular?
  28. '97 DeVille SES but no current codes?
  29. 95 sts hard shifting/chugging trans?
  30. combustion gas test turned yellow
  31. Northstar Died? no vacuum, no compression on cyl 6.
  32. Myrtle Beach Repair Shop
  33. High oil pressure
  34. Transmission help
  35. P0621
  36. 96 Seville AC system
  37. air box
  38. Engine almost stalls
  39. Help needed before I break something...
  40. Lean Cruise Tune
  41. 95 seville died and wont start
  42. would bad hg's cause the lower radiator hose not to get warm??
  43. Help..Which is #2 cylinder and other question
  44. cam sensor trigger
  45. getting p0741 code please help!!
  46. need help
  47. anyone know what this writing can mean?
  48. Primary timing chain sprocket wear?
  49. Still no short run power
  50. 96 concours crank prob
  51. On Vacation, just a bit of fun street racing....
  52. What is Normal Valve Train Noise?
  53. Fpr
  54. Need urgent help with spark plug wires
  55. PCM codes P0138 and P1139
  56. could this be a hg issue?
  57. barely running Northstar
  58. slightly overheating and coolant leak
  59. Help with TCC replacement parts list
  60. radiator fans not cutting on
  61. saying goodbye
  62. Transmission problems after HG fixed!!!
  63. 1996 STS Engine seized again what could be wrong?
  64. is there supposed to be something in the bottom radiator hoes?
  65. Bad head gasket without any symptoms???
  66. Crank Pulley removal/install
  67. how to check if the headgasket is in good shape before buying?
  68. newb question about tune-ups
  69. 1999 DeVille Coolant leak
  70. Coolant C/O Question
  71. HP rating from a sticker
  72. shelby northstar
  73. Wierd shaped bolt holding in IAC
  74. Check out my Headgasket Job in the car!!!!
  75. Crossover Manifold, Pipe Gasket Part Number
  76. Intake Manifold Cracked at Bolt Heads
  77. For all of us with the fluxuating speedometer / intermittent cruise control
  78. Transmission Strengths/Weaknesses
  79. looking for head gasket repair in tx
  80. Different Headgasket Question
  81. What is the difference between VIN 9 and VIN Y 4.6L Northstars ?
  82. I need to find someone closer than Canada to do my headgaskets !!
  83. Sold one of my '97 to my best friend, now it won't start
  84. 2001 STS vac leak at intake
  85. Overheats less in 3
  86. TERRIBLE Gas mileage "help"
  87. damm am i hard headed...over heating still
  88. still overheating need help...
  89. Found Coolant in the Valley. What could it be???
  90. Difficulty level on swapping a N* 4.6?
  91. Help with engine removal for STS
  92. Can 97 N* lifters be disassembled?
  93. front motor mount
  94. A/C delete pulley
  95. coolant leak
  96. Overpressurize relief valve boot
  97. 97 deville blown head gasket question
  98. The best preventative maintenance for my 97 N*?
  99. Service Stability System
  100. duramax1980
  101. 98 NS Brackets
  102. Intake Manifold Removal, '97 SLS
  103. Northstar Bracket
  104. my 1st post transmission problems i think
  105. Priming the oil pump on a northstar engine
  106. 2000 STS, N*interchangibility?
  107. Trying to find Intake Manifold Spacer
  108. PCM wiring without a complete car harness
  109. 99 ETC Weak hot restart?
  110. deville 2000 HG ???
  111. DHS would stall upon starting... would not idle
  112. Why Check the Oil When Hot?
  113. very little coolant circulation...i hope its not a head gasket
  114. '99 STS Oil Smell?
  115. why didnt gm recall northstar engines for head gasket?
  116. Any good Northstar Mechanics in SoCal
  117. radiator drain valve
  118. New Studs to incorporate alignment pins
  119. 1997 Power Steering Pump Questions
  120. 2000 N* Head Gasket probability
  121. 00' STS N* Conversion ???
  122. 99 Deville/Headgasket Issue
  123. Misfire PC0300 Code
  124. Code P0741...Really confused.....Need help!!!
  125. Finally tore the motor apart
  126. 1997 sts stalled, Won't start
  127. HARD loud knock @ acceleration. help
  128. 93 Northstar Dies randomly. HELP!
  129. 95 SLS throttle body vacuum plug
  130. 2006 DTS engine issue
  131. 97 northstar balancer removal
  132. Advice on Northstar Transmission???
  133. oil in the antifreeze & overheating
  134. HG blown 375 days after a $3500 repair
  135. Northstar Coil Bank
  136. Engine wiring harness removal
  137. 97 seville sls coolant loss
  138. 98 deville engine question
  139. STS Blowing Out Oil But From WHERE?????
  140. '93 STS Oil cooler
  141. What kind of seal installer to use?
  142. Northstar head gasket replacement with warranty, Louisville KY - 1500 + parts
  143. how easy is changing the thermostat yourself
  144. Low speed stall
  145. Coolant Issue "00 STS"
  146. failed state inspection because of p0507
  147. Alternator questions....
  148. Bars Leaks Liquid Copper?
  149. which of these codes will cause my service engine light to be on?
  150. 97 Deville oil pan leak
  151. Please Help with long cranking time
  152. high idle
  153. Aftermarket Intake for '99 DeVille base model
  154. 02 Deville rough idle & codes
  155. 1998 Eldorado Head Gasket - 2nd time in 375-days
  156. Started to hear an intermittent grinding noise
  157. $788 To fix P0410 Code
  158. Car Stalled, won't restart
  159. Smell Coolant after Driving??
  160. 1994 STS quit in driveway, seems battery went dead.
  161. 2000 seville sts misfire
  162. Idle Air Control Valve (IAC)
  163. 94 sts intake cover gasket
  164. HG Budget for 97 STS
  165. Help.. 2000 dts tranny blown
  166. 1999 Seville SLS hard start P1350/P1375
  167. Crap!!! Coolant leak! what do I do!?!?!?
  168. 97 Northstar Oil leak
  169. 94 Eldorado Idle problem
  170. Best service manual (rebuilding)
  171. low oil pressure indictator
  172. Any idea what I should pay to get the evap solenoid replaced ?
  173. Thinking of rebuilding motor... questions..
  174. 2001 Deville getting hot
  175. Oil pressure
  176. Cooling system tablets after HG job
  177. HG Jobs for all, anywhere in Canada or USA in my new shop
  178. where to get headgasket job done?
  179. Northstar Engine Gets Gummy?
  180. STS low power
  181. Northstar engine miss
  182. 2002 Deville P3008 code
  183. Real Performance Parts for the L37
  184. HELP outta town with tranny issues
  185. Cooling fans and hard driving- temp spikes
  186. Convert 98 SLS motor into STS motor?
  187. NO Codes but stalls...
  188. Stand-alone Northstar engine/trans for swap
  189. 4T80E solenoid shift replacement
  190. N* Swap with Factory ECM and avoiding DTC's
  191. Vin lookup for engine history
  192. 1999 STS Traction Control off......Unable to turn it on.
  193. 98 deville no fan / tech 2 commanded fan on
  194. 1999 Cadillac Seville OVERHEATING :(
  195. Any differences in an Export N* Engine and a Domestic One?
  196. To much Antifreez
  197. Synthetic or Regular Oil in 08 Escalade ESV?
  198. Stalling when wet
  199. 1998 STS : Code v
  200. 02 Deville plenum question
  201. MSD Timing Controller - Question for AJ
  202. Cranshaft Main Bolts
  203. Rear Main Seal Install
  204. Where to find coolant test?
  205. Can I put a 2001 Northstar in a 1997 Eldorado?
  206. Major coolant leak
  207. I think i'm ready
  208. what to look for buying a used northstar powered car
  209. Happy ending to overheating problem
  210. 2000 sts
  211. Fully Polished Aluminum Strut Tower Brace for 98+Seville and 00+ Deville
  212. o2 sensor thread repair
  213. Bypass AC pump 94 Eldorado
  214. Northstar oil leak, main bolts
  215. 1993 Eldorado Northstar running rough
  216. Limp Mode?
  217. STS N* Rough Idle/Miss at Startup
  218. northstar aurora alternator
  219. Swap 4.9l v8 and 4.6l v8 northstar
  220. '99 STS stuck water water pump
  221. Water pump drive pulley
  222. heater on bench 1?
  223. Hello all
  224. wide engine temp swing
  225. Oil pan gasket
  226. I allmost died in my sts !!!!!, P065 drives itself
  227. 1993 seville STS
  228. cooling fan electrical diagram
  229. Fuel Injectors Revisited
  230. head gasket replacement in louisville kentucky area
  231. Cam Replacement in Car
  232. Northstar block #'s info needed on a used engine.
  233. oil filter for northstar
  234. 2000 sls overheating
  235. SLS overheating help? please?
  236. testing for bad HG
  237. 94 STS Coolant leak between block and flywheel
  238. Valve cover gaskets
  239. Hitting rev limiter in idle after startup
  240. Bad news Very Bad news
  241. EGR symptoms
  242. fuel pumps
  243. manifold pressure sensor or mat sensor
  244. Transaxle interchange
  245. TSB for Oil Consumption
  246. N*** PCM hacking Help
  247. Increasing fuel efficiency
  248. 94 Eldorado 4.6 High Idle
  249. photo shop help
  250. high engine rpm at start up