: Northstar Engines and System Technical Discussion



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  1. Iradium Ix Spark Plug
  2. Overheat Cat Caonverter
  3. Car won't start...just my luck
  4. Throttle body Helix and MPG?
  5. clogged Cat?
  6. PLEASE HELP ME! Northstar is idling fast...
  7. New member, questions and suggestions
  8. (MAS) questions?????????????
  9. Northstar - Starting Problems
  10. hard idle on my 94'Deville Concourse
  11. N* performance approach?
  12. 1994 STS Headbolts
  13. Adding a K&N to 97 N*
  14. Drive with Trans. Code?
  15. Tune Up?
  16. '94 N* runs lumpy - hesitates. Any ideas?
  17. new STS with true dual exhaust???
  18. 97 Lower end thump/knock between 2 and 3k
  19. Code help
  20. Will Not Start - Think Fuel Pump?
  21. idle problem
  22. Fuel pressure at idle/WOT?
  23. oil spraying everywhere from headgasket
  24. Overwrite Obd1
  25. Compression Test
  26. Has anyone done a performance chip?
  27. Stuck in the middle??
  28. Bad Gas? - the reprecussions
  29. engine coolant tempature
  30. My NorthStar project....
  31. radiator coolant
  32. 4T80E shift kit??? and pro tech???
  33. Pontiac Northstar
  34. Spark Plug replacement
  35. Cat
  36. 94 STS with cruise & idle problem. Please help
  37. How Much Transmission Oil?
  38. How many Northstars
  39. DTS horsepower
  40. Infamous Northstar Oil Leak
  41. Decipher acronyms?
  42. Engine Coolant Tenperature
  43. Reapair Manual
  44. Time-sert Repair Kit
  45. Motor Mount Question
  46. Life after timeserts
  47. Northstar 320 hp crate motor
  48. Searching for the Northstar- Please Help
  49. Code P065 & uneven idle
  50. horsepower
  51. Passkey problems and Computer codes
  52. Crank pulley on 94 SLS
  53. Starter Problems
  54. Headgasket replace
  55. transmission is kidna ... odd?
  56. Code C1217 '99 Seville SLS
  57. Anyone ever put on glasspacks on a N*, or heard waht it sounds like?
  58. I'm smelling antifreeze but can't find it!!!
  59. Another Temp thread...
  60. 92 eldorado engine swap
  61. Changing Spark Plugs on Northstar?
  62. How do you check for codes???
  63. Now my deville is overheating !?!?!
  64. Well now that i am getting a free new exhaust...
  65. Transmission lurch
  66. Service Engine Soon
  67. chance to buy a N*.....
  68. Radiator leak on Seville Can it be repaired?
  69. Speed limiter & Tech II
  70. Where to find head bolts?
  71. Oil light comes on in an 98 Deville N*.
  72. Installed my Dynomax Turbo Mufflers
  73. ISC motor correct idling adjustment problem
  74. cooling system problems
  75. 96 eldorado
  76. Stock intake box modifications...
  77. Valve clatter at cold startup
  78. 93 sts w/97 n. s. fuel pump problem
  79. Code I052, Keep Alive Memory What is this? How to fix?
  80. Whats code tc0023?
  81. the shift solenoids
  82. Idler Pulley and Tensioner bolts
  83. So anybody around boston want to help out a fellow Caddy owner?
  84. Engine identification?
  85. wierd traction control problem!!!
  86. Performance Modifications
  87. Haynes manual
  88. Northstar with 120,000 miles ...any problems coming????
  89. Service Engine Soon..... ODBII codes
  90. bad block ?
  91. Where has my coolant gone ?
  92. Crank Position Sensor
  93. Removing EGR on northstar
  94. battery cable repair
  95. My 97 Head Gasket Problem
  96. Anthony Cipriano: Re. Your remarks on Olds Diesel Engine
  97. OBD1 PCM Output Section
  98. feul gauge
  99. 2001 Deville Overheating Problem
  100. 99 deville lifted head
  101. Replacing o2 sensor on a 97 deville
  102. IPC Overides
  103. Speed limit setting on 98 STS
  104. My first code.
  105. Delorean with a northstar.. & 94 Camaro... Links attached
  106. 94 SLS Air Conditioner
  107. hey guys..newbie with some questions!
  108. O-2 Trouble codes
  109. Cadillac Thermostat
  110. Engine Stall/ shut down
  111. Oil Weight Question
  112. Northstar fuel economy?
  113. Passenger climate control
  114. HELP, service emissions eystem
  115. Dipstick 95 SLS
  116. Help with part #?
  117. STS 95: Hard gear shift
  118. power steering pump replacement- ? special tool
  119. 1998 Deville With Hard Starting And A Slight Gas Odor
  120. 1998 Seville rear wheel speed sensor
  121. Fluid Evacuators
  122. Bolt size ?
  123. Proper Spark plug gap?
  124. Prgramming Keyless Entry Remote 98 Deville
  125. Factory Service manuals
  126. Reset codes
  127. 1997 to 2000 engine swap
  128. 96 sts shifter handle
  129. temp guage 97 sts
  130. Diagnostic Troubleshooting
  131. Badly Misfiring 97 STS
  132. Spun bearings in my '94 STS
  133. drain plugs in 97 sts block WHERE?
  134. Best Aftermarket add ons...?
  135. 96 Eldorado
  136. Northstar Pics Please
  137. dynomax exhaust
  138. i need help with codes b2710,b2780
  139. Can't Figure Out How To Set IPC Overides
  140. Northstar in VW Golf. Link Attached.
  141. anyone doing THIS with their N*?
  142. Air Intake Kits
  143. GMPT PV8 (Northstar) engine Cylinder Liner help...
  144. If I Dont Use Premium Unleaded Will It Ruin My 96STS
  145. In English, Please...
  146. error codes
  147. 98 STS Codes
  148. 1999 Deville , Code says convertor is not locking up
  149. 98 Sedan Deville-TRANS HOT-IDLE ENGINE
  150. How do I changes coolant hose
  151. Performance Air Intake Kits ?
  152. N2O in my '98 STS
  153. head gasket and maintainence
  154. 1996 Cadillac Seville running hot? (or not) help needed
  155. help! 2500 rpm idle
  156. I got the codes, now what?
  157. Evap Soleniod
  158. 94 Concours getting 13 MPG What could be wrong?
  159. pcv valve
  160. Oil Amount Debate, Do you put in 7.5 quarts or less at oil change?
  161. What is code p1645 mean
  162. Oil change and coolant
  163. CHanging the top-speed cut-out.
  164. how much extra HP will i get
  165. Used northstar
  166. 94 STS bogging and stalling?
  167. Overheating-head gaskets-screw it!!!
  168. ETC Crossover Leak
  169. Fuel Rail Recall Update
  170. Norstar governor
  171. 2005 Bonneville gets N*
  172. Fuel Rail Recall Missinformation
  173. Scan Tool Questions
  174. CARFAX (engine / car serial Numbers)
  175. Who has done a lot of mods to NS powered cars?
  176. Oxygen sensor problems
  177. All was fine until... hard cold start prob
  178. No orange light in Park, D, 2,1 in cluster on Concours?
  179. new 99 eng for 97 how much is different?
  180. 96 deville error codes P0147 and P0146, where do I look?
  181. po741 error shifting problem
  182. Leaking coolant
  183. Cat-back systems
  184. Throttle Body Cleaning
  185. coolant temp sensor
  186. carfaxing a used northstar
  187. Exhaust crossover
  188. 1994 sts 94K miles overheating
  189. Timesert kit for sale
  190. rough idle
  191. IPC lights ....out
  192. 96 sts transmission
  193. Fuel Rail Recall, just got the letter
  194. Changing That Water Pump Belt
  195. headgasket repairs
  196. Traction Control & a code.....
  197. newb looking for part numbers
  198. Solenoid/Valve Body/Trans Pan Pics!!!!!!!!
  199. Volant Air Intake
  200. Oil pressure check
  201. replacing my 96 northstar
  202. Where is it all?
  203. Will I suck her dry if....
  204. Shift Solenoid Kit Pics of Parts!!!!
  205. About to kick my caddy
  206. 98 STS Has DIC That Still Registers 100% Trans Fluid Life
  207. Northstar missing at idle
  208. Fuel Rail Leak on 98 Deville!!!
  209. Best Bar's Leak...C16 Liquid
  210. To replace or repair the n. star
  211. 97 Deville Question
  212. northstar extended warranty
  213. Noticeably Better Gas Mileage..On 10 yr old+ Engine!?
  214. Gas miles -- Standard DeVille vs DTS
  215. Changing out Fuel Rail??
  216. intake manifold bolt torque?
  217. Strange Things Happing
  218. Gas pedal click
  219. Starting to get rough idle
  220. Fixin' to pull the engine
  221. Head Gasket Leak : NO OVERHEAT with coolant supplement
  222. TPS replacement problem
  223. Fuel Leak
  224. Northstar transplant and electronics
  225. Best way to prevent an oil leak on N*?
  226. 180F or 195F Thermostat for 94 N*?
  227. Misfiring and Service Engine light
  228. Coils / Intermittent "missing" on my 99 STS
  229. Hey Hotrodelectric
  230. Northstar Expectancy
  231. Code P094 Shift A Solenoid Speed Sensor Where and what is it 94 Concours?
  232. Ac
  233. Apparent Coolant Leak Below Water Pump
  234. What makes the Headgaskets go so often on early N*s?
  235. Engine Service Soon light on but no codes??? 94 Concours
  236. Perfect exahust flow for 1999 STS?
  237. 94 N* Eldo - Thought was Head Gasket! WAS NOT! My experience!
  238. oil pressure or electrical problems?
  239. Starting Problem
  240. Coolant leak 94 Concours
  241. Bar's Leaks, block seal: Head Gasket Repair ???
  242. Starter problem with '97 STS
  243. Caddy Northstar LMP 4.0 turbo
  244. I can't drive 55 (very far)
  245. Coolant Spuing
  246. Block Drain Plug- Coolant 4.6L
  247. Vacuum Harness????
  248. Piston Slapping site
  249. Help Again Bbobynski !! - Tranny Codes
  250. ? on buying a northstar engine